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52918 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
515186b7be |
bpf-fixes
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Pull bpf fixes from Alexei Starovoitov:
- Fix sk_local_storage diag dump via netlink (Amery Hung)
- Fix off-by-one in arena direct-value access (Junyoung Jang)
- Reject TCP_NODELAY in bpf-tcp congestion control (KaFai Wan)
- Fix type confusion in bpf_*_sock() (Kuniyuki Iwashima)
- Reject TX-only AF_XDP sockets (Linpu Yu)
- Don't run arg-tracking analysis twice on main subprog (Paul Chaignon)
- Fix NULL pointer dereference in bpf_sk_storage_clone and fib lookup
(Weiming Shi)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Fix off-by-one boundary validation in arena direct-value access
xskmap: reject TX-only AF_XDP sockets
bpf: Don't run arg-tracking analysis twice on main subprog
bpf: Free reuseport cBPF prog after RCU grace period.
bpf: tcp: Fix type confusion in sol_tcp_sockopt().
bpf: tcp: Fix type confusion in bpf_skc_to_tcp6_sock().
bpf: tcp: Fix type confusion in bpf_skc_to_tcp_sock().
mptcp: bpf: Fix type confusion in bpf_mptcp_sock_from_subflow()
selftest: bpf: Add test for bpf_tcp_sock() and RAW socket.
bpf: tcp: Fix type confusion in bpf_tcp_sock().
tools/headers: Regenerate stddef.h to fix BPF selftests
bpf: Fix sk_local_storage diag dumping uninitialized special fields
bpf: Fix NULL pointer dereference in bpf_skb_fib_lookup()
sockmap: Fix sk_psock_drop() race vs sock_map_{unhash,close,destroy}().
bpf: Fix NULL pointer dereference in bpf_sk_storage_clone and diag paths
selftests/bpf: Verify bpf-tcp-cc rejects TCP_NODELAY
selftests/bpf: Test TCP_NODELAY in TCP hdr opt callbacks
bpf: Reject TCP_NODELAY in bpf-tcp-cc
bpf: Reject TCP_NODELAY in TCP header option callbacks
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||
|
Linus Torvalds
|
7f00232152 |
Miscellaneous scheduler fixes:
- Fix spurious failures in rseq self-tests (Mark Brown)
- Fix rseq rseq::cpu_id_start ABI regression due to
TCMalloc's creative use of the supposedly read-only field.
The fix is to introduce a new ABI variant based on
a new (larger) rseq area registration size, to keep
the TCMalloc use of rseq backwards compatible on new kernels.
(Thomas Gleixner)
- Fix wakeup_preempt_fair() for not waking up task (Vincent Guittot)
- Fix s64 mult overflow in vruntime_eligible() (Zhan Xusheng)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2026-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
- Fix spurious failures in rseq self-tests (Mark Brown)
- Fix rseq rseq::cpu_id_start ABI regression due to TCMalloc's creative
use of the supposedly read-only field
The fix is to introduce a new ABI variant based on a new (larger)
rseq area registration size, to keep the TCMalloc use of rseq
backwards compatible on new kernels (Thomas Gleixner)
- Fix wakeup_preempt_fair() for not waking up task (Vincent Guittot)
- Fix s64 mult overflow in vruntime_eligible() (Zhan Xusheng)
* tag 'sched-urgent-2026-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix wakeup_preempt_fair() for not waking up task
sched/fair: Fix overflow in vruntime_eligible()
selftests/rseq: Expand for optimized RSEQ ABI v2
rseq: Reenable performance optimizations conditionally
rseq: Implement read only ABI enforcement for optimized RSEQ V2 mode
selftests/rseq: Validate legacy behavior
selftests/rseq: Make registration flexible for legacy and optimized mode
selftests/rseq: Skip tests if time slice extensions are not available
rseq: Revert to historical performance killing behaviour
rseq: Don't advertise time slice extensions if disabled
rseq: Protect rseq_reset() against interrupts
rseq: Set rseq::cpu_id_start to 0 on unregistration
selftests/rseq: Don't run tests with runner scripts outside of the scripts
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Kuniyuki Iwashima
|
d73549b8bb |
selftest: bpf: Add test for bpf_tcp_sock() and RAW socket.
Let's extend sockopt_sk.c to cover bpf_tcp_sock() for the wrong socket type. Before: # ./test_progs -t sockopt_sk [ 151.948613] ================================================================== [ 151.951376] BUG: KASAN: slab-out-of-bounds in sol_tcp_sockopt+0xc7/0x8e0 [ 151.954159] Read of size 8 at addr ffff88801083d760 by task test_progs/1259 ... run_test:FAIL:getsetsockopt unexpected error: -1 (errno 0) #427 sockopt_sk:FAIL After: #427 sockopt_sk:OK While at it, missing free() is fixed up. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20260504210610.180150-3-kuniyu@google.com |
||
|
Linus Torvalds
|
fcee7d82f2 |
Including fixes from Netfilter, IPsec, Bluetooth and WiFi.
Current release - fix to a fix:
- ipmr: add __rcu to netns_ipv4.mrt, make sure we hold the RCU lock
in all relevant places
Current release - new code bugs:
- fixes for the recently added resizable hash tables
- ipv6: make sure we default IPv6 tunnel drivers to =m now that
IPv6 itself is built in
- drv: octeontx2-af: fixes for parser/CAM fixes
Previous releases - regressions:
- phy: micrel: fix LAN8814 QSGMII soft reset
- wifi: cw1200: revert "Fix locking in error paths"
- wifi: ath12k: fix crash on WCN7850, due to adding the same queue
buffer to a list multiple times
Previous releases - always broken:
- number of info leak fixes
- ipv6: implement limits on extension header parsing
- wifi: number of fixes for missing bound checks in the drivers
- Bluetooth: fixes for races and locking issues
- af_unix: fix an issue between garbage collection and PEEK
- af_unix: fix yet another issue with OOB data
- xfrm: esp: avoid in-place decrypt on shared skb frags
- netfilter: replace skb_try_make_writable() by skb_ensure_writable()
- openvswitch: vport: fix race between tunnel creation and linking
leading to invalid memory accesses (type confusion)
- drv: amd-xgbe: fix PTP addend overflow causing frozen clock
Misc:
- sched/isolation: make HK_TYPE_KTHREAD an alias of HK_TYPE_DOMAIN
(for relevant IPVS change)
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from Netfilter, IPsec, Bluetooth and WiFi.
Current release - fix to a fix:
- ipmr: add __rcu to netns_ipv4.mrt, make sure we hold the RCU lock
in all relevant places
Current release - new code bugs:
- fixes for the recently added resizable hash tables
- ipv6: make sure we default IPv6 tunnel drivers to =m now that IPv6
itself is built in
- drv: octeontx2-af: fixes for parser/CAM fixes
Previous releases - regressions:
- phy: micrel: fix LAN8814 QSGMII soft reset
- wifi:
- cw1200: revert "Fix locking in error paths"
- ath12k: fix crash on WCN7850, due to adding the same queue
buffer to a list multiple times
Previous releases - always broken:
- number of info leak fixes
- ipv6: implement limits on extension header parsing
- wifi: number of fixes for missing bound checks in the drivers
- Bluetooth: fixes for races and locking issues
- af_unix:
- fix an issue between garbage collection and PEEK
- fix yet another issue with OOB data
- xfrm: esp: avoid in-place decrypt on shared skb frags
- netfilter: replace skb_try_make_writable() by skb_ensure_writable()
- openvswitch: vport: fix race between tunnel creation and linking
leading to invalid memory accesses (type confusion)
- drv: amd-xgbe: fix PTP addend overflow causing frozen clock
Misc:
- sched/isolation: make HK_TYPE_KTHREAD an alias of HK_TYPE_DOMAIN
(for relevant IPVS change)"
* tag 'net-7.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (190 commits)
net: sparx5: configure serdes for 1000BASE-X in sparx5_port_init()
net: sparx5: fix wrong chip ids for TSN SKUs
net: stmmac: dwmac-nuvoton: fix NULL pointer dereference in nvt_set_phy_intf_sel()
tcp: Fix dst leak in tcp_v6_connect().
ipmr: Call ipmr_fib_lookup() under RCU.
net: phy: broadcom: Save PHY counters during suspend
net/smc: fix missing sk_err when TCP handshake fails
af_unix: Reject SIOCATMARK on non-stream sockets
veth: fix OOB txq access in veth_poll() with asymmetric queue counts
eth: fbnic: fix double-free of PCS on phylink creation failure
net: ethernet: cortina: Drop half-assembled SKB
selftests: mptcp: pm: restrict 'unknown' check to pm_nl_ctl
selftests: mptcp: check output: catch cmd errors
mptcp: pm: prio: skip closed subflows
mptcp: pm: ADD_ADDR rtx: return early if no retrans
mptcp: pm: ADD_ADDR rtx: skip inactive subflows
mptcp: pm: ADD_ADDR rtx: resched blocked ADD_ADDR quicker
mptcp: pm: ADD_ADDR rtx: free sk if last
mptcp: pm: ADD_ADDR rtx: always decrease sk refcount
mptcp: pm: ADD_ADDR rtx: fix potential data-race
...
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Matthieu Baerts (NGI0)
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53705ddfa1 |
selftests: mptcp: pm: restrict 'unknown' check to pm_nl_ctl
When pm_netlink.sh is executed with '-i', 'ip mptcp' is used instead of
'pm_nl_ctl'. IPRoute2 doesn't support the 'unknown' flag, which has only
been added to 'pm_nl_ctl' for this specific check: to ensure that the
kernel ignores such unsupported flag.
No reason to add this flag to 'ip mptcp'. Then, this check should be
skipped when 'ip mptcp' is used.
Fixes:
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Matthieu Baerts (NGI0)
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65db7b27b9 |
selftests: mptcp: check output: catch cmd errors
Using '${?}' inside the if-statement to check the returned value from
the command that was evaluated as part of the if-statement is not
correct: here, '${?}' will be linked to the previous instruction, not
the one that is expected here (${cmd}).
Instead, simply mark the error, except if an error is expected. If
that's the case, 1 can be passed as the 4th argument of this helper.
Three checks from pm_netlink.sh expect an error.
While at it, improve the error message when the command unexpectedly
fails or succeeds.
Note that we could expect a specific returned value, but the checks
currently expecting an error can be used with 'ip mptcp' or 'pm_nl_ctl',
and these two tools don't return the same error code.
Fixes:
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Jakub Kicinski
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0e1368a28d |
selftests: drv-net: fix sort order of makefile and config
Recent changes added configs and tests in the wrong spot. Link: https://lore.kernel.org/20260506170435.34984dfc@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Jakub Kicinski
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dc61989e37 |
ipsec-2026-05-05
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Jakub Kicinski
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f4eac70d1e |
Includes changes:
* ensure MAC header offset is reset before delivering packet * ensure gro_cells_receive() and dstats_dev_add() are called with BH disabled * reduce ping count in selftest to ensure it completes within timeout -----BEGIN PGP SIGNATURE----- iJEEABYIADkWIQQKU153ubb5unbkl6Gx/ZpNW1HNdwUCafkekRsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQsf2aTVtRzXdZAAEA2yDBkZdIiALO7V5ul5Ao Y2/jFxysR5fyCMiOdxTOruwBAJaX9KExSE2QucHKOBFLmrjIIqwI5Br6whljdZKt n1YE =UhhZ -----END PGP SIGNATURE----- Merge tag 'ovpn-net-20260504' of https://github.com/OpenVPN/ovpn-net-next Antonio Quartulli says: ==================== Includes changes: * ensure MAC header offset is reset before delivering packet * ensure gro_cells_receive() and dstats_dev_add() are called with BH disabled * reduce ping count in selftest to ensure it completes within timeout * tag 'ovpn-net-20260504' of https://github.com/OpenVPN/ovpn-net-next: selftests: ovpn: reduce ping count in test.sh ovpn: ensure packet delivery happens with BH disabled ovpn: reset MAC header before passing skb up ==================== Link: https://patch.msgid.link/20260504230305.2681646-1-antonio@openvpn.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Thomas Gleixner
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e744060076 |
selftests/rseq: Expand for optimized RSEQ ABI v2
Update the selftests so they are executed for legacy (32 bytes RSEQ region)
and optimized RSEQ ABI v2 mode.
Fixes:
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Thomas Gleixner
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fdf4eb6326 |
selftests/rseq: Validate legacy behavior
The RSEQ legacy mode behavior requires that the ID fields in the rseq
region are unconditionally updated on every context switch and before
signal delivery even if not required by the ABI specification.
To ensure that this behavior is preserved for legacy users in the future,
add a test which validates that with a sleep() and a signal sent to self.
Provide a run script which prevents GLIBC from registering a RSEQ region,
so that the test can register it's own legacy sized region.
Fixes:
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Thomas Gleixner
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d97cb2ef0b |
selftests/rseq: Make registration flexible for legacy and optimized mode
rseq_register_current_thread() either uses the glibc registered RSEQ region
or registers it's own region with the legacy size of 32 bytes.
That worked so far, but becomes a problem when the kernel implements a
distinction between legacy and performance optimized behavior based on the
registration size as that does not allow to test both modes with the self
test suite.
Add two arguments to the function. One to enforce that the registration is
not using libc provided mode and one to tell the registration to use the
legacy size and not the kernel advertised size.
Rename it and make the original one a inline wrapper which preserves the
existing behavior.
Fixes:
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Thomas Gleixner
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02b44d943b |
selftests/rseq: Skip tests if time slice extensions are not available
Don't fail, skip the test if the extensions are not enabled at compile or
runtime.
Fixes:
|
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Ilya Maximets
|
05416ada37 |
selftests: openvswitch: add tests for tunnel vport refcounting
There were a few issues found with the tunnel vport types around the vport destruction code. Add some basic tests, so at least we know that they can be properly added and removed without obvious issues. The test creates OVS datapath, adds a non-LWT tunnel port, makes sure they are created, and then removes the datapath and waits for all the ports to be gone. The dpctl script had a few bugs in the none-lwt tunnel creation code, so fixing them as well to make the testing possible: - The type of the --lwt option changed in order to properly disable it. - Removed byte order conversion for the port numbers, as the value supposed to be in the host order. - Added missing 'gre' choice for the tunnel type. Signed-off-by: Ilya Maximets <i.maximets@ovn.org> Acked-by: Eelco Chaudron <echaudro@redhat.com> Acked-by: Aaron Conole <aconole@redhat.com> Link: https://patch.msgid.link/20260430233848.440994-3-i.maximets@ovn.org Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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Linus Torvalds
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a293ec25d5 |
linux_kselftest-fixes-7.1-rc3
Fixes extra test number increment in ksft_exit_skip() that results in incorrect KTAP result. Fixes regression introduced by addition of explicit constructor orders for fixture tests. This addition broke the ordering of those relative to non-fixture tests and the reverse-constructor-order detection. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmn4/0MACgkQCwJExA0N QxwcXxAAjWAn/T16yWs5AV1txbTwEBv3siH6+3nMnZvgM8/VJEJRs0n6zQSjW1LQ MfR6LdZPOkRpKyspz8RxSZnHT3qeKCiOnUaJbmwA4+BXv325N4T0m18Vy+izN1w7 pda3FEoe+vlCmclVv5iD3IsaeYMvMf0/PNy58+hHO1yrzOQ0GdgQCM+xDSwYZYBg GZAYNlGkMql/XToBkBTZCTEC32MorldjKn0bs25MLDtWW+J9X+frgGmYbj2WN+9k w2EjPGpakllDOtgfmj53Sa5BW9B8U25KXzpZryovwi5NHPhxz+VsdNet8YNkd0yy VMqIYCPdvpC7DPMKdEboWlXMm3j7oiOeADXZGA8vEAvcXn0JmTbBy97RIsn+5wME jqAtM4oj+n01QryxDF4pllJU5X5nvam+aO8Nax5jo1u8djQ1eFZToy8QviDT7oSE dNJzWfzadOkWnHhBbEqjI7RxWbOwxU0yKHjun69ucmROP9zcK02Tw0PEb5rGkcu5 1fb/isNtszBe/LNvrERjPTty52g7K80kw05byzYCwjR1IUFLBX+Xjrs9mLuthIbD 7Mk4HlErKLK5YPLc2gwlI4KQNqoSZqirWQFqy0y9pFHL0Ip0ot8Ne190imP6i18A lEzr0J22EuCmAlWs+Wn6RpCq3J3845ybq0lH2Hl+HfJphyPd/Fk= =u8Qv -----END PGP SIGNATURE----- Merge tag 'linux_kselftest-fixes-7.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: - Fix extra test number increment in ksft_exit_skip() that results in incorrect KTAP result - Fix regression introduced by addition of explicit constructor orders for fixture tests. This addition broke the ordering of those relative to non-fixture tests and the reverse-constructor-order detection * tag 'linux_kselftest-fixes-7.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: harness: Restore order of test functions selftests: kselftest: fix wrong test number in ksft_exit_skip |
||
|
Ralf Lici
|
201ba70631 |
selftests: ovpn: reduce ping count in test.sh
The second stage of test.sh ("run baseline data traffic") performs a
basic connectivity check with ping -qfc 500 -w 3. On slower CI
instances this is too strict for TCP: the RTT is high enough that 500
echo requests do not reliably complete within 3 seconds, so the stage
flakes and the test fails even though the ovpn setup is healthy.
Reduce the packet count to 100 for both the plain and 3000-byte pings in
that stage. This still verifies peer setup, key exchange, routing, and
data-path traffic, without making the basic connectivity check depend on
timing out under load.
Fixes:
|
||
|
Jakub Kicinski
|
bd3a4795d5 |
selftests: tls: add test for data loss on small pipe
Add selftest for data loss on short splice. Link: https://patch.msgid.link/20260429222944.2139041-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Victor Nogueira
|
3a3a30c14d |
selftests/tc-testing: Add tests that force red and sfb to dequeue from child's gso_skb
Create 4 test cases: - Force red to dequeue from its child's gso_skb with qfq leaf - Force sfb to dequeue from its child's gso_skb with qfq leaf - Force red to dequeue from its child's gso_skb with dualpi2 leaf - Force sfb to dequeue from its child's gso_skb with dualpi2 leaf All of them have tbf followed by red (or sfb) followed by qfq (or dualpi2). Since tbf calls its child's peek followed by qdisc_dequeue_peeked, it will force red/sfb to call their child's peek. In this case, since the child (qfq/dualpi2) has qdisc_peek_dequeued as its peek callback, the packet will be stored in its gso_skb queue. During the subsequent call to qdisc_dequeue_peeked, red/sfb will have to dequeue from the child's gso_skb to retrieve the packet. Not doing so will cause a NULL ptr deref which was happening before a recent fix. Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/20260430152957.194015-4-jhs@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Paul Chaignon
|
0c7ae13069 |
tools/headers: Regenerate stddef.h to fix BPF selftests
With commit |
||
|
Kuniyuki Iwashima
|
d1ae37dc68 |
selftest: net: Add test for TCP flow failover with ECMP routes.
Without the previous commit, TCP failed to switch to alternative IPv6 routes immediately upon carrier loss. It would persist with the dead route until reaching the threshold net.ipv4.tcp_retries1, leading to unnecessary delays in failover. Let's add a selftest for this scenario to ensure TCP fails over immediately upon a carrier loss event. Before: TEST: TCP IPv4 failover [ OK ] TEST: TCP IPv6 failover [FAIL] After: TEST: TCP IPv4 failover [ OK ] TEST: TCP IPv6 failover [ OK ] Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Signed-off-by: Sagarika Sharma <sharmasagarika@google.com> Link: https://patch.msgid.link/20260430200909.527827-3-sharmasagarika@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
cd546f7ae2 |
Assorted arm64, ACPI and kselftest fixes for 7.1-rc2:
- Avoid writing an uninitialised stack variable to POR_EL0 on
sigreturn if the poe_context record is absent
- Reserve one more page for the early 4K-page kernel mapping to cover
the extra [_text, _stext) split introduced by the non-executable
read-only mapping
- Force the arch_local_irq_*() wrappers to be __always_inline so that
noinstr entry and idle paths cannot call out-of-line, instrumentable
copies
- Fix potential sign extension in the arm64 SCS unwinder's DWARF
advance_loc4 decoding
- Tolerate arm64 ACPI platforms with only WFI and no deeper PSCI idle
states, restoring cpuidle registration on such systems
- Include the UAPI <asm/ptrace.h> header in the arm64 GCS libc test
rather than carrying a duplicate struct user_gcs definition (the
original #ifdef NT_ARM_GCS was wrong to cover the structure
definition as it would be masked out if the toolchain defined it)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Avoid writing an uninitialised stack variable to POR_EL0 on sigreturn
if the poe_context record is absent
- Reserve one more page for the early 4K-page kernel mapping to cover
the extra [_text, _stext) split introduced by the non-executable
read-only mapping
- Force the arch_local_irq_*() wrappers to be __always_inline so that
noinstr entry and idle paths cannot call out-of-line, instrumentable
copies
- Fix potential sign extension in the arm64 SCS unwinder's DWARF
advance_loc4 decoding
- Tolerate arm64 ACPI platforms with only WFI and no deeper PSCI idle
states, restoring cpuidle registration on such systems
- Include the UAPI <asm/ptrace.h> header in the arm64 GCS libc test
rather than carrying a duplicate struct user_gcs definition (the
original #ifdef NT_ARM_GCS was wrong to cover the structure
definition as it would be masked out if the toolchain defined it)
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: signal: Preserve POR_EL0 if poe_context is missing
arm64: Reserve an extra page for early kernel mapping
kselftest/arm64: Include <asm/ptrace.h> for user_gcs definition
ACPI: arm64: cpuidle: Tolerate platforms with no deep PSCI idle states
arm64/irqflags: __always_inline the arch_local_irq_*() helpers
arm64/scs: Fix potential sign extension issue of advance_loc4
|
||
|
Mark Brown
|
cb48828f06 |
selftests/rseq: Don't run tests with runner scripts outside of the scripts
The rseq selftests include two runner scripts run_param_test.sh and
run_syscall_errors_test.sh which set up the environment for test binaries
and run them with various parameters. Currently we list these test binaries
in TEST_GEN_PROGS but this results in the kselftest framework running them
directly as well as via the runners, resulting in duplication and spurious
failures when the environment is not correctly set up (eg, if glibc tries
to use rseq).
Move the binaries the runners invoke to TEST_GEN_PROGS_EXTENDED, binaries
listed there are built but not run by the framework. The param_test
benchmarks are not moved since they are not run by run_param_test.sh.
Fixes:
|
||
|
Linus Torvalds
|
2b4d0215be |
20 hotfixes. All are for MM (and for MMish maintainers). 9 are cc:stable
and the remainder are for post-7.0 issues or aren't deemed suitable for backporting. There's a 2 patch DAMON series from SeongJae Park which address races which could lead to use-after-free errors. And a 3 patch DAMON series which avoids the possibility of presenting stale parameter values to users. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCafPaVQAKCRDdBJ7gKXxA jiUxAQCceUQi6IqADUMhYAsbGcs1LoeMWfiMfbCz2NCoiTXAEwD/S2uqSELRPQQc 7iW6D7U6dTa3d2kkbnxC02ocekaxiQ4= =M/FI -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2026-04-30-15-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM fixes from Andrew Morton: "20 hotfixes. All are for MM (and for MMish maintainers). 9 are cc:stable and the remainder are for post-7.0 issues or aren't deemed suitable for backporting. There are two DAMON series from SeongJae Park which address races which could lead to use-after-free errors, and avoid the possibility of presenting stale parameter values to users" * tag 'mm-hotfixes-stable-2026-04-30-15-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm: memcontrol: fix rcu unbalance in get_non_dying_memcg_end() mm/userfaultfd: detect VMA type change after copy retry in mfill_copy_folio_retry() MAINTAINERS: remove stale kdump project URL mm/damon/stat: detect and use fresh enabled value mm/damon/lru_sort: detect and use fresh enabled and kdamond_pid values mm/damon/reclaim: detect and use fresh enabled and kdamond_pid values selftests/mm: specify requirement for PROC_MEM_ALWAYS_FORCE=y mm/damon/sysfs-schemes: protect path kfree() with damon_sysfs_lock mm/damon/sysfs-schemes: protect memcg_path kfree() with damon_sysfs_lock MAINTAINERS: update Li Wang's email address MAINTAINERS, mailmap: update email address for Qi Zheng MAINTAINERS: update Liam's email address mm/hugetlb_cma: round up per_node before logging it MAINTAINERS: fix regex pattern in CORE MM category mm/vma: do not try to unmap a VMA if mmap_prepare() invoked from mmap() mm: start background writeback based on per-wb threshold for strictlimit BDIs kho: fix error handling in kho_add_subtree() liveupdate: fix return value on session allocation failure mailmap: update entry for Dan Carpenter vmalloc: fix buffer overflow in vrealloc_node_align() |
||
|
Leo Yan
|
bb7235e226 |
kselftest/arm64: Include <asm/ptrace.h> for user_gcs definition
kselftest includes kernel uAPI headers with option:
-isystem $(top_srcdir)/usr/include
Include <asm/ptrace.h> in libc-gcs.c for the definition of struct
user_gcs from the uAPI headers, and remove the redundant definition in
gcs-util.h. This fixes a compilation error on systems where the
toolchain defines NT_ARM_GCS.
Fixes:
|
||
|
Linus Torvalds
|
08d0d34666 |
Including fixes from netfilter.
Current release - regressions:
- ipmr: free mr_table after RCU grace period.
Previous releases - regressions:
- core: add net_iov_init() and use it to initialize ->page_type
- sched: taprio: fix NULL pointer dereference in class dump
- netfilter: nf_tables:
- use list_del_rcu for netlink hooks
- fix strict mode inbound policy matching
- tcp: make probe0 timer handle expired user timeout
- vrf: fix a potential NPD when removing a port from a VRF
- eth: ice:
- fix NULL pointer dereference in ice_reset_all_vfs()
- fix infinite recursion in ice_cfg_tx_topo via ice_init_dev_hw
Previous releases - always broken:
- page_pool: fix memory-provider leak in error path
- sched: sch_cake: annotate data-races in cake_dump_stats()
- mptcp: fix scheduling with atomic in timestamp sockopt
- psp: check for device unregister when creating assoc
- tls: fix strparser anchor skb leak on offload RX setup failure
- eth: stmmac: prevent NULL deref when RX memory exhausted
- eth: airoha: do not read uninitialized fragment address
- eth: rtl8150: fix use-after-free in rtl8150_start_xmit()
Misc:
- add Ido Schimmel as IPv4/IPv6 maintainer
- add David Heidelberg as NFC subsystem maintainer
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter.
Current release - regressions:
- ipmr: free mr_table after RCU grace period.
Previous releases - regressions:
- core: add net_iov_init() and use it to initialize ->page_type
- sched: taprio: fix NULL pointer dereference in class dump
- netfilter: nf_tables:
- use list_del_rcu for netlink hooks
- fix strict mode inbound policy matching
- tcp: make probe0 timer handle expired user timeout
- vrf: fix a potential NPD when removing a port from a VRF
- eth: ice:
- fix NULL pointer dereference in ice_reset_all_vfs()
- fix infinite recursion in ice_cfg_tx_topo via ice_init_dev_hw
Previous releases - always broken:
- page_pool: fix memory-provider leak in error path
- sched: sch_cake: annotate data-races in cake_dump_stats()
- mptcp: fix scheduling with atomic in timestamp sockopt
- psp: check for device unregister when creating assoc
- tls: fix strparser anchor skb leak on offload RX setup failure
- eth:
- stmmac: prevent NULL deref when RX memory exhausted
- airoha: do not read uninitialized fragment address
- rtl8150: fix use-after-free in rtl8150_start_xmit()
Misc:
- add Ido Schimmel as IPv4/IPv6 maintainer
- add David Heidelberg as NFC subsystem maintainer"
* tag 'net-7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits)
net/sched: cls_flower: revert unintended changes
sfc: fix error code in efx_devlink_info_running_versions()
net: tls: fix strparser anchor skb leak on offload RX setup failure
ice: add dpll peer notification for paired SMA and U.FL pins
ice: fix missing dpll notifications for SW pins
dpll: export __dpll_pin_change_ntf() for use under dpll_lock
ice: fix SMA and U.FL pin state changes affecting paired pin
ice: fix missing SMA pin initialization in DPLL subsystem
ice: fix infinite recursion in ice_cfg_tx_topo via ice_init_dev_hw
ice: fix NULL pointer dereference in ice_reset_all_vfs()
iavf: add VIRTCHNL_OP_ADD_VLAN to success completion handler
iavf: wait for PF confirmation before removing VLAN filters
iavf: stop removing VLAN filters from PF on interface down
iavf: rename IAVF_VLAN_IS_NEW to IAVF_VLAN_ADDING
page_pool: fix memory-provider leak in page_pool_create_percpu() error path
bonding: 3ad: implement proper RCU rules for port->aggregator
net: airoha: Do not return err in ndo_stop() callback
hv_sock: fix ARM64 support
MAINTAINERS: update the IPv4/IPv6 entry and add Ido Schimmel
selftests: drv-net: clarify linters and frameworks in README
...
|
||
|
Jakub Kicinski
|
72e9647e2b |
selftests: drv-net: clarify linters and frameworks in README
Minor clarifications in the README: - call out what linters we expect to be clean - make it clear that by "frameworks" we mean code under lib/ not just factoring code out in the same file Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
57b8e2d666 |
Arm:
* Allow tracing for non-pKVM, which was accidentally disabled when
the series was merged
* Rationalise the way the pKVM hypercall ranges are defined by using
the same mechanism as already used for the vcpu_sysreg enum
* Enforce that SMCCC function numbers relayed by the pKVM proxy are
actually compliant with the specification
* Fix a couple of feature to idreg mappings which resulted in the
wrong sanitisation being applied
* Fix the GICD_IIDR revision number field that could never been
written correctly by userspace
* Make kvm_vcpu_initialized() correctly use its parameter instead
of relying on the surrounding context
* Enforce correct ordering in __pkvm_init_vcpu(), plugging a
potential pin leak at the same time
* Move __pkvm_init_finalise() to a less dangerous spot, avoiding
future problems
* Restore functional userspace irqchip support after a four year
breakage (last functional kernel was 5.18...).
* Spelling fixes
Selftests:
* Rename types across all KVM selftests to more closely align with types used
in the kernel:
vm_vaddr_t -> gva_t
vm_paddr_t -> gpa_t
uint64_t -> u64
uint32_t -> u32
uint16_t -> u16
uint8_t -> u8
int64_t -> s64
int32_t -> s32
int16_t -> s16
int8_t -> s8
* Fix Loongarch compilation.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"On top of a lot of Arm fixes, this includes a massive rename of types
and variables in tools/testing/selftests/kvm - these were
unnecessarily different from what the kernel uses, so they're being
made consistent.
arm64:
- Allow tracing for non-pKVM, which was accidentally disabled when
the series was merged
- Rationalise the way the pKVM hypercall ranges are defined by using
the same mechanism as already used for the vcpu_sysreg enum
- Enforce that SMCCC function numbers relayed by the pKVM proxy are
actually compliant with the specification
- Fix a couple of feature to idreg mappings which resulted in the
wrong sanitisation being applied
- Fix the GICD_IIDR revision number field that could never been
written correctly by userspace
- Make kvm_vcpu_initialized() correctly use its parameter instead of
relying on the surrounding context
- Enforce correct ordering in __pkvm_init_vcpu(), plugging a
potential pin leak at the same time
- Move __pkvm_init_finalise() to a less dangerous spot, avoiding
future problems
- Restore functional userspace irqchip support after a four year
breakage (last functional kernel was 5.18...)
- Spelling fixes
Selftests:
- Rename types across all KVM selftests to more closely align with
types used in the kernel:
vm_vaddr_t -> gva_t
vm_paddr_t -> gpa_t
uint64_t -> u64
uint32_t -> u32
uint16_t -> u16
uint8_t -> u8
int64_t -> s64
int32_t -> s32
int16_t -> s16
int8_t -> s8
- Fix Loongarch compilation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (31 commits)
KVM: selftests: Add check_steal_time_uapi() implementation for LoongArch
KVM: arm64: Wake-up from WFI when iqrchip is in userspace
KVM: arm64: Fix initialisation order in __pkvm_init_finalise()
KVM: arm64: Fix pin leak and publication ordering in __pkvm_init_vcpu()
KVM: arm64: Fix kvm_vcpu_initialized() macro parameter
KVM: arm64: Fix FEAT_SPE_FnE to use PMSIDR_EL1.FnE, not PMSVer
KVM: arm64: Fix typo in feature check comments
KVM: arm64: Fix FEAT_Debugv8p9 to check DebugVer, not PMUVer
KVM: arm64: Reject non compliant SMCCC function calls in pKVM
KVM: arm64: vgic: Fix IIDR revision field extracted from wrong value
KVM: selftests: Replace "paddr" with "gpa" throughout
KVM: selftests: Replace "u64 nested_paddr" with "gpa_t l2_gpa"
KVM: selftests: Replace "u64 gpa" with "gpa_t" throughout
KVM: selftests: Replace "vaddr" with "gva" throughout
KVM: selftests: Clarify that arm64's inject_uer() takes a host PA, not a guest PA
KVM: selftests: Rename translate_to_host_paddr() => translate_hva_to_hpa()
KVM: selftests: Rename vm_vaddr_populate_bitmap() => vm_populate_gva_bitmap()
KVM: selftests: Rename vm_vaddr_unused_gap() => vm_unused_gva_gap()
KVM: selftests: Drop "vaddr_" from APIs that allocate memory for a given VM
KVM: selftests: Use u8 instead of uint8_t
...
|
||
|
Linus Torvalds
|
664f0f6be3 |
sched_ext: Fixes for v7.1-rc1
The merge window pulled in the cgroup sub-scheduler infrastructure, and
new AI reviews are accelerating bug reporting and fixing - hence the
larger than usual fixes batch.
- Use-after-frees during scheduler load/unload. The disable path
could free the BPF scheduler while deferred irq_work / kthread work
was still in flight; cgroup setter callbacks read the active
scheduler outside the rwsem that synchronizes against teardown.
Fixed both, and reused the disable drain in the enable error paths
so the BPF JIT page can't be freed under live callbacks.
- Several BPF op invocations didn't tell the framework which runqueue
was already locked, so helper kfuncs that re-acquire the runqueue
by CPU could deadlock on the held lock. Fixed at the affected
callsites, including recursive parent-into-child dispatch.
- The hardlockup notifier ran from NMI but eventually took a
non-NMI-safe lock. Bounced through irq_work.
- A handful of bugs in the new sub-scheduler hierarchy: helper
kfuncs hard-coded the root instead of resolving the caller's
scheduler; the enable error path tried to disable per-task state
that had never been initialized, and leaked cpus_read_lock on the
way out; a sysfs object was leaked on every load/unload; the
dispatch fast-path used the root scheduler instead of the task's;
and a couple of CONFIG #ifdef guards were misclassified.
- Verifier-time hardening: BPF programs of unrelated struct_ops
types (e.g. tcp_congestion_ops) could call sched_ext kfuncs - a
semantic bug and, once sub-sched was enabled, a KASAN
out-of-bounds read. Now rejected at load. Plus a few NULL and
cross-task argument checks on sched_ext kfuncs, and a selftest
covering the new deny.
- rhashtable (Herbert): restored the insecure_elasticity toggle and
bounced the deferred-resize kick through irq_work to break a
lock-order cycle observable from raw-spinlock callers. sched_ext's
scheduler-instance hash is the first user of both.
- The bypass-mode load balancer used file-scope cpumasks; with
multiple scheduler instances now possible, those raced. Moved
per-instance, plus a follow-up to skip tasks whose recorded CPU is
stale relative to the new owning runqueue.
- Smaller fixes: a dispatch queue's first-task tracking misbehaved
when a parked iterator cursor sat in the list; the runqueue's
next-class wasn't promoted on local-queue enqueue, leaving an SCX
task behind RT in edge cases; the reference qmap scheduler stopped
erroring on legitimate cross-scheduler task-storage misses.
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Merge tag 'sched_ext-for-7.1-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext fixes from Tejun Heo:
"The merge window pulled in the cgroup sub-scheduler infrastructure,
and new AI reviews are accelerating bug reporting and fixing - hence
the larger than usual fixes batch:
- Use-after-frees during scheduler load/unload:
- The disable path could free the BPF scheduler while deferred
irq_work / kthread work was still in flight
- cgroup setter callbacks read the active scheduler outside the
rwsem that synchronizes against teardown
Fix both, and reuse the disable drain in the enable error paths so
the BPF JIT page can't be freed under live callbacks.
- Several BPF op invocations didn't tell the framework which runqueue
was already locked, so helper kfuncs that re-acquire the runqueue
by CPU could deadlock on the held lock
Fix the affected callsites, including recursive parent-into-child
dispatch.
- The hardlockup notifier ran from NMI but eventually took a
non-NMI-safe lock. Bounce it through irq_work.
- A handful of bugs in the new sub-scheduler hierarchy:
- helper kfuncs hard-coded the root instead of resolving the
caller's scheduler
- the enable error path tried to disable per-task state that had
never been initialized, and leaked cpus_read_lock on the way
out
- a sysfs object was leaked on every load/unload
- the dispatch fast-path used the root scheduler instead of the
task's
- a couple of CONFIG #ifdef guards were misclassified
- Verifier-time hardening: BPF programs of unrelated struct_ops types
(e.g. tcp_congestion_ops) could call sched_ext kfuncs - a semantic
bug and, once sub-sched was enabled, a KASAN out-of-bounds read.
Now rejected at load. Plus a few NULL and cross-task argument
checks on sched_ext kfuncs, and a selftest covering the new deny.
- rhashtable (Herbert): restore the insecure_elasticity toggle and
bounce the deferred-resize kick through irq_work to break a
lock-order cycle observable from raw-spinlock callers. sched_ext's
scheduler-instance hash is the first user of both.
- The bypass-mode load balancer used file-scope cpumasks; with
multiple scheduler instances now possible, those raced. Move to
per-instance cpumasks, plus a follow-up to skip tasks whose
recorded CPU is stale relative to the new owning runqueue.
- Smaller fixes:
- a dispatch queue's first-task tracking misbehaved when a parked
iterator cursor sat in the list
- the runqueue's next-class wasn't promoted on local-queue
enqueue, leaving an SCX task behind RT in edge cases
- the reference qmap scheduler stopped erroring on legitimate
cross-scheduler task-storage misses"
* tag 'sched_ext-for-7.1-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (26 commits)
sched_ext: Fix scx_flush_disable_work() UAF race
sched_ext: Call wakeup_preempt() in local_dsq_post_enq()
sched_ext: Release cpus_read_lock on scx_link_sched() failure in root enable
sched_ext: Reject NULL-sch callers in scx_bpf_task_set_slice/dsq_vtime
sched_ext: Refuse cross-task select_cpu_from_kfunc calls
sched_ext: Align cgroup #ifdef guards with SUB_SCHED vs GROUP_SCHED
sched_ext: Make bypass LB cpumasks per-scheduler
sched_ext: Pass held rq to SCX_CALL_OP() for core_sched_before
sched_ext: Pass held rq to SCX_CALL_OP() for dump_cpu/dump_task
sched_ext: Save and restore scx_locked_rq across SCX_CALL_OP
sched_ext: Use dsq->first_task instead of list_empty() in dispatch_enqueue() FIFO-tail
sched_ext: Resolve caller's scheduler in scx_bpf_destroy_dsq() / scx_bpf_dsq_nr_queued()
sched_ext: Read scx_root under scx_cgroup_ops_rwsem in cgroup setters
sched_ext: Don't disable tasks in scx_sub_enable_workfn() abort path
sched_ext: Skip tasks with stale task_rq in bypass_lb_cpu()
sched_ext: Guard scx_dsq_move() against NULL kit->dsq after failed iter_new
sched_ext: Unregister sub_kset on scheduler disable
sched_ext: Defer scx_hardlockup() out of NMI
sched_ext: sync disable_irq_work in bpf_scx_unreg()
sched_ext: Fix local_dsq_post_enq() to use task's scheduler in sub-sched
...
|
||
|
Cosmin Ratiu
|
e64e03b478 |
tools/selftests: Add a VXLAN+IPsec traffic test
There are VXLAN tests and IPsec tests, but there is no test that combines the two protocols and exercises the tunnel-over-ipsec code paths. Fix that by adding a traffic test with VXLAN and IPsec using crypto offload. This is runnable on HW which supports ESP offload (so no nsim unfortunately). Traffic is done with iperf3 and the test validates that there are no packet drops and iperf3 can get to at least 100 Mbps (a very conservative value on today's crypto offload HW, as it can typically reach multi-Gbps rates). Ran right now, the test fails due to a recently exposed bug in xfrm, which will be fixed in the next patch: # ./tools/testing/selftests/drivers/net/hw/ipsec_vxlan.py TAP version 13 1..4 # Check| At ./tools/testing/selftests/drivers/net/hw/ipsec_vxlan.py, # line 161, in test_vxlan_ipsec_crypto_offload: # Check| ksft_eq(drops_after - drops_before, 0, # Check failed 189 != 0 TX drops during VXLAN+IPsec # Check| At ./tools/testing/selftests/drivers/net/hw/ipsec_vxlan.py, # line 163, in test_vxlan_ipsec_crypto_offload: # Check| ksft_ge(bw_gbps, 0.1, # Check failed 0.0015058278404812596 < 0.1 Minimum 100Mbps over # VXLAN+IPsec not ok 1 ipsec_vxlan.test_vxlan_ipsec_crypto_offload.outer_v4_inner_v4 ... Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> |
||
|
Cosmin Ratiu
|
ada95e5e60 |
tools/selftests: Use a sensible timeout value for iperf3 client
The default timeout of cmd() is 5 seconds and Iperf3Runner requests the
iperf3 client to run for 10 seconds, which clearly doesn't work since
commit [1] enforced the timeout parameter.
Use a value derived from duration as timeout (+5 seconds for
startup/teardown/various other overhead).
[1] commit
|
||
|
Weiming Shi
|
a469feed39 |
selftests/tc-testing: add taprio test for class dump after child delete
Add a regression test for the NULL pointer dereference fixed in the previous commit. Before the fix, taprio_graft() stored NULL into q->qdiscs[cl - 1] when an explicitly grafted child qdisc was deleted via RTM_DELQDISC; the next RTM_GETTCLASS dump then crashed the kernel in taprio_dump_class() while reading child->handle. The test installs a taprio root qdisc on a multi-queue netdevsim device, grafts a pfifo child onto class 8001:1, deletes that child, and then performs a class dump. On a fixed kernel the dump succeeds and all eight taprio classes are listed; on an unpatched kernel the class dump crashes, which surfaces as a test failure. Signed-off-by: Weiming Shi <bestswngs@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Link: https://patch.msgid.link/20260422161958.2517539-4-bestswngs@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Thomas Weißschuh
|
465b05bae5 |
selftests: harness: Restore order of test functions
The recent addition of explicit constructor orders for fixture tests
broke the ordering of those relative to non-fixture tests and the
reverse-constructor-order detection.
Restore the ordering of the test functions relative to each other by
using the same explicit test order for all test registrations and
__constructor_order_first().
Rename the constant, as it is not specific to TEST_F() anymore.
Link: https://lore.kernel.org/r/20260422-kselftests-harness-order-v2-1-93ea980ea3ac@linutronix.de
Fixes:
|
||
|
Sarthak Sharma
|
74f192205c |
selftests: kselftest: fix wrong test number in ksft_exit_skip
ksft_exit_skip() increments ksft_xskip before printing the KTAP
result. As a result, ksft_test_num() already includes the skipped
test.
Adding 1 to ksft_test_num() increments the printed test number
again, producing an incorrect test number and wrong KTAP output.
Drop the extra increment and print ksft_test_num() directly.
Link: https://lore.kernel.org/r/20260427112447.147985-1-sarthak.sharma@arm.com
Fixes:
|
||
|
Mark Brown
|
a3907a3169 |
selftests/mm: specify requirement for PROC_MEM_ALWAYS_FORCE=y
Several of the mm selftests made use of /proc/pid/mem as part of their operation but we do not specify this in the config fragment for them, at least mkdirty and ksm_functional_tests have this requirement. This has been working fine in practice since PROC_MEM_ALWAYS_FORCE was the default setting but commit |
||
|
Liam R. Howlett
|
77a50e9652 |
MAINTAINERS: update Liam's email address
Switching to private email address. Update all contact information Add an entry to mailmap at the same time. Link: https://lore.kernel.org/20260422184310.2682901-1-liam@infradead.org Signed-off-by: Liam R. Howlett <liam@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Lorenzo Stoakes
|
619eab23e1 |
mm/vma: do not try to unmap a VMA if mmap_prepare() invoked from mmap()
The mmap_prepare hook functionality includes the ability to invoke
mmap_prepare() from the mmap() hook of existing 'stacked' drivers, that is
ones which are capable of calling the mmap hooks of other drivers/file
systems (e.g. overlayfs, shm).
As part of the mmap_prepare action functionality, we deal with errors by
unmapping the VMA should one arise. This works in the usual mmap_prepare
case, as we invoke this action at the last moment, when the VMA is
established in the maple tree.
However, the mmap() hook passes a not-fully-established VMA pointer to the
caller (which is the motivation behind the mmap_prepare() work), which is
detached.
So attempting to unmap a VMA in this state will be problematic, with the
most obvious symptom being a warning in vma_mark_detached(), because the
VMA is already detached.
It's also unncessary - the mmap() handler will clean up the VMA on error.
So to fix this issue, this patch propagates whether or not an mmap action
is being completed via the compatibility layer or directly.
If the former, then we do not attempt VMA cleanup, if the latter, then we
do.
This patch also updates the userland VMA tests to reflect the change.
Link: https://lore.kernel.org/20260421102150.189982-1-ljs@kernel.org
Fixes:
|
||
|
Paolo Bonzini
|
39f1c201b9 |
KVM selftests type renames for 7.1
Renames types across all KVM selftests to more closely align with types used in the kernel: vm_vaddr_t -> gva_t vm_paddr_t -> gpa_t uint64_t -> u64 uint32_t -> u32 uint16_t -> u16 uint8_t -> u8 int64_t -> s64 int32_t -> s32 int16_t -> s16 int8_t -> s8 Using the kernel's preferred types eliminates a source of friction for many contributors, as the majority of KVM selftests contributions come from kernel developers. The kernel names are also shorter, which allows for more concise code, and in any many cases eliminates newlines thanks to shorter types and parameter names. Rename variables and parameters as well as types, e.g. gpa instead of paddr, to again align with the kernel, and in a few cases to remove ambiguity, e.g. where paddr is used to refer to a _host_ physical address. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEKTobbabEP7vbhhN9OlYIJqCjN/0FAmnqaAUACgkQOlYIJqCj N/2k0Q//eRyhxrf7ZX7F3LNRLeHvvETipwXlkaiIT47HBnCf/hECCDiU4nmi5w3s QA9Jmt4DcbvUd0OxHwxTGoTA53/Y5g4abJUU7W3pviBxNo4aMnyw+92L1I4oQVEN gLCK7fQ+jl9e/utKCIhSiQPYfHgPGvSaWbP0X1WFNVfpiOryZt2z2iWo1c0kp5jv mdAmWPwNX9ygWB0xLfc4MCo2S9Cgi3CvmIIVxHKnQt0V6yv+Lyzv725dy2FVbw/r 3CGTUM/Nr4mvbjBZsutaZLUY2+i/0g8VAp00m+SRhvREdAKUZla0eCbNJKr5qEji jfGvZssQtv/1NOP5X79b0ewRNJ17ZhQ5hkUczh08H9ekGDrRyByUpbWTrC98ePYb GmUEHZRfulxNEPa7lAqFfOCBZ1C2uHXD/+slh3ZQp+xtlwgj6iFQGk9zgN6Cw89p RCla+R8LkEWQZjhJ4ZJzgLJggLD6/3UbgpV6Ic/KKxKGgIKMxeYmYDC1NiYmGN4T 5i4p3tMy6cHIwDEdNhix5/7VWZ5VGGRx0g+aQvjTvtmt3zoae+CwHX3kSowfLcPu 9jN87NPFl09IC6mB90Bebufzx0nUzCudyto7jqQaV1dVdRhkXe7YOdZZb5QtDVNu 3pPfH4+Zyx62emOOZO/pMTZgkLXye5ak/02TxrzheWCYUFt8Uvg= =nYWK -----END PGP SIGNATURE----- Merge tag 'kvm-x86-selftests_kernel_types-7.1' of https://github.com/kvm-x86/linux into HEAD KVM selftests type renames for 7.1 Renames types across all KVM selftests to more closely align with types used in the kernel: vm_vaddr_t -> gva_t vm_paddr_t -> gpa_t uint64_t -> u64 uint32_t -> u32 uint16_t -> u16 uint8_t -> u8 int64_t -> s64 int32_t -> s32 int16_t -> s16 int8_t -> s8 Using the kernel's preferred types eliminates a source of friction for many contributors, as the majority of KVM selftests contributions come from kernel developers. The kernel names are also shorter, which allows for more concise code, and in any many cases eliminates newlines thanks to shorter types and parameter names. Rename variables and parameters as well as types, e.g. gpa instead of paddr, to again align with the kernel, and in a few cases to remove ambiguity, e.g. where paddr is used to refer to a _host_ physical address. |
||
|
Sean Christopherson
|
1101baca98 |
KVM: selftests: Add check_steal_time_uapi() implementation for LoongArch
Define check_steal_time_uapi() for LoongArch so that the steal_time test
builds. Note, while LoongArch's steal_time_init() has some funky asserts,
none of the code is uniquely verifying KVM's uAPI.
Cc: Jiakai Xu <xujiakai2025@iscas.ac.cn>
Cc: Jiakai Xu <jiakaiPeanut@gmail.com>
Cc: Andrew Jones <andrew.jones@oss.qualcomm.com>
Cc: Anup Patel <anup@brainfault.org>
Cc: Tianrui Zhao <zhaotianrui@loongson.cn>
Cc: Bibo Mao <maobibo@loongson.cn>
Cc: Huacai Chen <chenhuacai@kernel.org>
Fixes:
|
||
|
Linus Torvalds
|
2ff1bc41ef |
Power Utilities 2026.04.25
tools/power x86_energy_perf_policy: v2026.04.25 Since v2025.11.22: Initial SoC Slider support tools/power turbostat: v2026.04.21 Since v2026.02.14 Display HT siblings in cpu# order. Add Module-ID column. Print Core-ID and APIC-ID in hex. Fix misc bugs. -----BEGIN PGP SIGNATURE----- iQJIBAABCgAyFiEE67dNfPFP+XUaA73mB9BFOha3NhcFAmntCF8UHGxlbi5icm93 bkBpbnRlbC5jb20ACgkQB9BFOha3NhdonBAAvVjW218opQ91NRnwX++PKgggSrxN r9Vyo+ZFAI5gcHuvjHdew3cLr1gjb9Ty0a9FDOYE0a6Encl3v7DgaS9IxLCCDUcV 9YYscLhbQdY+6teIacCXwxibWvYVrpuRW8Mfr5nRMC5ftmZ0fMuoVhPwgX40NMgk 3bbawrC0RoXgivZiF8tNZlAKdtyYAs2k46jEUGoy7aiezV1XGU0J7kU3usLP3BeE kB3Q6CzgQcn0fSGm4Lc899DzcFwbVIJtpAB9jcGcqme6Okk2Kw8uH8vjQrPFnMUD K08PX987z+U9y+NTR+IW6H+T1DmnBikoBH5ibdSrox5yI9VgCUFL1X65cUt2amgZ IQwoZcvDbmGzSC+C3qylsdGRl/Al5zIdv2dPey+NGvZmnhFbFtWnfSoj0zeRyiqY M368EplGh64venFYn0vyf5AAJhZMQztjEKXkyARUtLPZVnDFzGcqbRozKkMP2siz CrY8gS54s4wtj5zlA/8On007tO5mCVaBimcikgjPHi+W3jHFaCasOyxG7O49EEJ3 6qbtChQFYlrexT/cjyHR4KLPWnN288HiQ09oCffSxr2MMn6Hcds+ixW06VZJfUd1 wVbG7+CmcJEcX+oSEz80CpguUKMWRUlqGpHBtO16LF6in+9d7ugvlbG20kypVSBI 8E291PTXqlzHEvg= =5yb/ -----END PGP SIGNATURE----- Merge tag 'power-utilities-2026.04.25' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull power utility updates from Len Brown: "x86_energy_perf_policy: - Initial SoC Slider support turbostat: - Display HT siblings in cpu# order - Add Module-ID column - Print Core-ID and APIC-ID in hex - Fix misc bugs" * tag 'power-utilities-2026.04.25' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power x86_energy_perf_policy: Version 2026.04.25 tools/power x86_energy_perf_policy.8: Document SoC Slider Options tools/power x86_energy_perf_policy: Enhances SoC Slider related checks tools/power turbostat: v2026.04.21 tools/power turbostat: Process HT siblings in CPU order tools/power turbostat: Show module_id column tools/power turbostat: Print core_id and apic_id in hex tools/power turbostat: Cleanup print helper functions tools/power turbostat: Fix --cpu-set 1 regression on HT systems tools/power turbostat: Fix --cpu-set 0 regression on HT systems tools/power turbostat: Fix unrecognized option '-P' tools/power turbostat: Fix AMD RAPL regression on big systems tools/power/x86: Add SOC slider and platform profile support |
||
|
Len Brown
|
6112da1ea4 | Merge branches 'turbostat' and 'x86_energy_perf_policy' into power-utilities | ||
|
Len Brown
|
f1c35c7319 |
tools/power x86_energy_perf_policy: Version 2026.04.25
Since v2025.11.22: Initial SoC Slider support SoC Slider is an SoC-wide power/performance policy setting. On SoC Slider systems, EPP plays a diminished role. Whitespace cleanup via: indent -npro -kr -i8 -ts8 -sob -l160 -ss -ncs -cp1 No functional changes Signed-off-by: Len Brown <len.brown@intel.com> |
||
|
Len Brown
|
18c5b9ea4e |
tools/power x86_energy_perf_policy.8: Document SoC Slider Options
x86_energy_perf_policy accesses the SoC Slider via standard user/kernel APIs to the processor_thermal_soc_slider driver. Machines that support SoC Slider largely use it instead of EPP, which may continue to exist in a diminished role, or vanish entirely. Signed-off-by: Len Brown <len.brown@intel.com> |
||
|
Len Brown
|
25ff5848c0 |
tools/power x86_energy_perf_policy: Enhances SoC Slider related checks
When processor_thermal_soc_slider is loaded, its slider and offset modparams are visible. Check that the driver actually registered the profile named "SoC Slider" before reading or writing these modparams. n.b. This utility allows writing the Slider and Offset modparams even if the driver policy is not "balanced". Currently the processor_thermal_soc_slider consults those modparams only in "balanced" mode. Signed-off-by: Len Brown <len.brown@intel.com> |
||
|
Linus Torvalds
|
f3e3dbcea1 |
block-7.1-20260424
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Merge tag 'block-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- Series for zloop, fixing a variety of issues
- t10-pi code cleanup
- Fix for a merge window regression with the bio memory allocation mask
- Fix for a merge window regression in ublk, caused by an issue with
the maple tree iteration code at teardown
- ublk self tests additions
- Zoned device pgmap fixes
- Various little cleanups and fixes
* tag 'block-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (21 commits)
Revert "floppy: fix reference leak on platform_device_register() failure"
ublk: avoid unpinning pages under maple tree spinlock
ublk: refactor common helper ublk_shmem_remove_ranges()
ublk: fix maple tree lockdep warning in ublk_buf_cleanup
selftests: ublk: add ublk auto integrity test
selftests: ublk: enable test_integrity_02.sh on fio 3.42
selftests: ublk: remove unused argument to _cleanup
block: only restrict bio allocation gfp mask asked to block
block/blk-throttle: Add WQ_PERCPU to alloc_workqueue users
block: Add WQ_PERCPU to alloc_workqueue users
block: relax pgmap check in bio_add_page for compatible zone device pages
block: add pgmap check to biovec_phys_mergeable
floppy: fix reference leak on platform_device_register() failure
ublk: use unchecked copy helpers for bio page data
t10-pi: reduce ref tag code duplication
zloop: remove irq-safe locking
zloop: factor out zloop_mark_{full,empty} helpers
zloop: set RQF_QUIET when completing requests on deleted devices
zloop: improve the unaligned write pointer warning
zloop: use vfs_truncate
...
|
||
|
Linus Torvalds
|
feff82eb5f |
RISC-V updates for v7.1
- Add Kunit correctness testing and microbenchmarks for strlen(),
strnlen(), and strrchr()
- Add RISC-V-specific strnlen(), strchr(), strrchr() implementations
- Add hardware error exception handling
- Clean up and optimize our unaligned access probe code
- Enable HAVE_IOREMAP_PROT to be able to use generic_access_phys()
- Remove XIP kernel support
- Warn when addresses outside the vmemmap range are passed to
vmemmap_populate()
- Update the ACPI FADT revision check to warn if it's not at least
ACPI v6.6, which is when key RISC-V-specific tables were added to the
specification
- Increase COMMAND_LINE_SIZE to 2048 to match ARM64, x86, PowerPC, etc.
- Make kaslr_offset() a static inline function, since there's no need
for it to show up in the symbol table
- Add KASLR offset and SATP to the VMCOREINFO ELF notes to improve
kdump support
- Add Makefile cleanup rule for vdso_cfi copied source files, and add
a .gitignore for the build artifacts in that directory
- Remove some redundant ifdefs that check Kconfig macros
- Add missing SPDX license tag to the CFI selftest
- Simplify UTS_MACHINE assignment in the RISC-V Makefile
- Clarify some unclear comments and remove some superfluous comments
- Fix various English typos across the RISC-V codebase
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Merge tag 'riscv-for-linus-7.1-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
"There is one significant change outside arch/riscv in this pull
request: the addition of a set of KUnit tests for strlen(), strnlen(),
and strrchr().
Otherwise, the most notable changes are to add some RISC-V-specific
string function implementations, to remove XIP kernel support, to add
hardware error exception handling, and to optimize our runtime
unaligned access speed testing.
A few comments on the motivation for removing XIP support. It's been
broken in the RISC-V kernel for months. The code is not easy to
maintain. Furthermore, for XIP support to truly be useful for RISC-V,
we think that compile-time feature switches would need to be added for
many of the RISC-V ISA features and microarchitectural properties that
are currently implemented with runtime patching. No one has stepped
forward to take responsibility for that work, so many of us think it's
best to remove it until clear use cases and champions emerge.
Summary:
- Add Kunit correctness testing and microbenchmarks for strlen(),
strnlen(), and strrchr()
- Add RISC-V-specific strnlen(), strchr(), strrchr() implementations
- Add hardware error exception handling
- Clean up and optimize our unaligned access probe code
- Enable HAVE_IOREMAP_PROT to be able to use generic_access_phys()
- Remove XIP kernel support
- Warn when addresses outside the vmemmap range are passed to
vmemmap_populate()
- Update the ACPI FADT revision check to warn if it's not at least
ACPI v6.6, which is when key RISC-V-specific tables were added to
the specification
- Increase COMMAND_LINE_SIZE to 2048 to match ARM64, x86, PowerPC,
etc.
- Make kaslr_offset() a static inline function, since there's no need
for it to show up in the symbol table
- Add KASLR offset and SATP to the VMCOREINFO ELF notes to improve
kdump support
- Add Makefile cleanup rule for vdso_cfi copied source files, and add
a .gitignore for the build artifacts in that directory
- Remove some redundant ifdefs that check Kconfig macros
- Add missing SPDX license tag to the CFI selftest
- Simplify UTS_MACHINE assignment in the RISC-V Makefile
- Clarify some unclear comments and remove some superfluous comments
- Fix various English typos across the RISC-V codebase"
* tag 'riscv-for-linus-7.1-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (31 commits)
riscv: Remove support for XIP kernel
riscv: Reuse compare_unaligned_access() in check_vector_unaligned_access()
riscv: Split out compare_unaligned_access()
riscv: Reuse measure_cycles() in check_vector_unaligned_access()
riscv: Split out measure_cycles() for reuse
riscv: Clean up & optimize unaligned scalar access probe
riscv: lib: add strrchr() implementation
riscv: lib: add strchr() implementation
riscv: lib: add strnlen() implementation
lib/string_kunit: extend benchmarks to strnlen() and chr searches
lib/string_kunit: add performance benchmark for strlen()
lib/string_kunit: add correctness test for strrchr()
lib/string_kunit: add correctness test for strnlen()
lib/string_kunit: add correctness test for strlen()
riscv: vdso_cfi: Add .gitignore for build artifacts
riscv: vdso_cfi: Add clean rule for copied sources
riscv: enable HAVE_IOREMAP_PROT
riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()
riscv: acpi: update FADT revision check to 6.6
riscv: add hardware error trap handler support
...
|
||
|
Linus Torvalds
|
ff57d59200 |
LoongArch changes for v7.1
1, Adjust build infrastructure for 32BIT/64BIT;
2, Add HIGHMEM (PKMAP and FIX_KMAP) support;
3, Show and handle CPU vulnerabilites correctly;
4, Batch the icache maintenance for jump_label;
5, Add more atomic instructions support for BPF JIT;
6, Add more features (e.g. fsession) support for BPF trampoline;
7, Some bug fixes and other small changes.
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Merge tag 'loongarch-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen:
- Adjust build infrastructure for 32BIT/64BIT
- Add HIGHMEM (PKMAP and FIX_KMAP) support
- Show and handle CPU vulnerabilites correctly
- Batch the icache maintenance for jump_label
- Add more atomic instructions support for BPF JIT
- Add more features (e.g. fsession) support for BPF trampoline
- Some bug fixes and other small changes
* tag 'loongarch-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (21 commits)
selftests/bpf: Enable CAN_USE_LOAD_ACQ_STORE_REL for LoongArch
LoongArch: BPF: Add fsession support for trampolines
LoongArch: BPF: Introduce emit_store_stack_imm64() helper
LoongArch: BPF: Support up to 12 function arguments for trampoline
LoongArch: BPF: Support small struct arguments for trampoline
LoongArch: BPF: Open code and remove invoke_bpf_mod_ret()
LoongArch: BPF: Support load-acquire and store-release instructions
LoongArch: BPF: Support 8 and 16 bit read-modify-write instructions
LoongArch: BPF: Add the default case in emit_atomic() and rename it
LoongArch: Define instruction formats for AM{SWAP/ADD}.{B/H} and DBAR
LoongArch: Batch the icache maintenance for jump_label
LoongArch: Add flush_icache_all()/local_flush_icache_all()
LoongArch: Add spectre boundry for syscall dispatch table
LoongArch: Show CPU vulnerabilites correctly
LoongArch: Make arch_irq_work_has_interrupt() true only if IPI HW exist
LoongArch: Use get_random_canary() for stack canary init
LoongArch: Improve the logging of disabling KASLR
LoongArch: Align FPU register state to 32 bytes
LoongArch: Handle CONFIG_32BIT in syscall_get_arch()
LoongArch: Add HIGHMEM (PKMAP and FIX_KMAP) support
...
|
||
|
Linus Torvalds
|
e728258deb |
Including fixes from Netfilter.
Steady stream of fixes. Last two weeks feel comparable to the two
weeks before the merge window. Lots of AI-aided bug discovery.
A newer big source is Sashiko/Gemini (Roman Gushchin's system),
which points out issues in existing code during patch review
(maybe 25% of fixes here likely originating from Sashiko).
Nice thing is these are often fixed by the respective maintainers,
not drive-bys.
Current release - new code bugs:
- kconfig: MDIO_PIC64HPSC should depend on ARCH_MICROCHIP
Previous releases - regressions:
- add async ndo_set_rx_mode and switch drivers which we promised
to be called under the per-netdev mutex to it
- dsa: remove duplicate netdev_lock_ops() for conduit ethtool ops
- hv_sock: report EOF instead of -EIO for FIN
- vsock/virtio: fix MSG_PEEK calculation on bytes to copy
Previous releases - always broken:
- ipv6: fix possible UAF in icmpv6_rcv()
- icmp: validate reply type before using icmp_pointers
- af_unix: drop all SCM attributes for SOCKMAP
- netfilter: fix a number of bugs in the osf (OS fingerprinting)
- eth: intel: fix timestamp interrupt configuration for E825C
Misc:
- bunch of data-race annotations
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from Netfilter.
Steady stream of fixes. Last two weeks feel comparable to the two
weeks before the merge window. Lots of AI-aided bug discovery. A newer
big source is Sashiko/Gemini (Roman Gushchin's system), which points
out issues in existing code during patch review (maybe 25% of fixes
here likely originating from Sashiko). Nice thing is these are often
fixed by the respective maintainers, not drive-bys.
Current release - new code bugs:
- kconfig: MDIO_PIC64HPSC should depend on ARCH_MICROCHIP
Previous releases - regressions:
- add async ndo_set_rx_mode and switch drivers which we promised to
be called under the per-netdev mutex to it
- dsa: remove duplicate netdev_lock_ops() for conduit ethtool ops
- hv_sock: report EOF instead of -EIO for FIN
- vsock/virtio: fix MSG_PEEK calculation on bytes to copy
Previous releases - always broken:
- ipv6: fix possible UAF in icmpv6_rcv()
- icmp: validate reply type before using icmp_pointers
- af_unix: drop all SCM attributes for SOCKMAP
- netfilter: fix a number of bugs in the osf (OS fingerprinting)
- eth: intel: fix timestamp interrupt configuration for E825C
Misc:
- bunch of data-race annotations"
* tag 'net-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (148 commits)
rxrpc: Fix error handling in rxgk_extract_token()
rxrpc: Fix re-decryption of RESPONSE packets
rxrpc: Fix rxrpc_input_call_event() to only unshare DATA packets
rxrpc: Fix missing validation of ticket length in non-XDR key preparsing
rxgk: Fix potential integer overflow in length check
rxrpc: Fix conn-level packet handling to unshare RESPONSE packets
rxrpc: Fix potential UAF after skb_unshare() failure
rxrpc: Fix rxkad crypto unalignment handling
rxrpc: Fix memory leaks in rxkad_verify_response()
net: rds: fix MR cleanup on copy error
m68k: mvme147: Make me the maintainer
net: txgbe: fix firmware version check
selftests/bpf: check epoll readiness during reuseport migration
tcp: call sk_data_ready() after listener migration
vhost_net: fix sleeping with preempt-disabled in vhost_net_busy_poll()
ipv6: Cap TLV scan in ip6_tnl_parse_tlv_enc_lim
tipc: fix double-free in tipc_buf_append()
llc: Return -EINPROGRESS from llc_ui_connect()
ipv4: icmp: validate reply type before using icmp_pointers
selftests/net: packetdrill: cover RFC 5961 5.2 challenge ACK on both edges
...
|
||
|
Zhenzhong Wu
|
c01cfc4886 |
selftests/bpf: check epoll readiness during reuseport migration
Inside migrate_dance(), add epoll checks around shutdown() to verify that the target listener is not ready before shutdown() and becomes ready immediately after shutdown() triggers migration. Cover TCP_ESTABLISHED and TCP_SYN_RECV. Exclude TCP_NEW_SYN_RECV as it depends on later handshake completion. Suggested-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Signed-off-by: Zhenzhong Wu <jt26wzz@gmail.com> Link: https://patch.msgid.link/20260422024554.130346-3-jt26wzz@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Jiayuan Chen
|
cf94b3c0f0 |
selftests/net: packetdrill: cover RFC 5961 5.2 challenge ACK on both edges
RFC 5961 Section 5.2 / RFC 793 Section 3.9 require a challenge ACK
whenever an incoming SEG.ACK falls outside
[SND.UNA - MAX.SND.WND, SND.NXT]. There is currently no packetdrill
coverage for either edge.
Add tcp_rfc5961_ack-out-of-window.pkt, which in a single passive-open
connection exercises:
- Upper edge (SEG.ACK > SND.NXT): peer ACKs data that was never
sent before the server has transmitted anything.
- Lower edge (SEG.ACK < SND.UNA - MAX.SND.WND): after the server
has sent 2000 bytes (the peer-advertised rwnd forces two 1000-byte
segments, both acknowledged), peer sends an ACK that is older
than the acceptable window.
Both cases must elicit a challenge ACK
<SEQ = SND.NXT, ACK = RCV.NXT, CTL = ACK>. The per-socket RFC 5961
Section 7 rate limit is disabled for the duration of the test so that
both challenge ACKs can fire back-to-back.
Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260422123605.320000-3-jiayuan.chen@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
||
|
Jiayuan Chen
|
42726ec644 |
tcp: send a challenge ACK on SEG.ACK > SND.NXT
RFC 5961 Section 5.2 validates an incoming segment's ACK value against the range [SND.UNA - MAX.SND.WND, SND.NXT] and states: "All incoming segments whose ACK value doesn't satisfy the above condition MUST be discarded and an ACK sent back." Commit |