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a077be4fde
55596 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
a077be4fde |
arm64 fixes for -rc4
- Fix hypercall arguments when resetting EL2 vectors during hibernation
- Fix hibernation with 52-bit capable kernels on machines without
52-bit addressing, similarly to the recent kexec fix
- Fix a bunch of clumsy codegen issues with our per-cpu accessors
- Fix MTE ptrace documentation to reflect the de-facto ABI behaviour
- Fix pthread_join() usage in MTE selftest
- Fix port selection in the Arm CMN PMU driver
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"In this batch we've got a couple of hibernation fixes, a couple of
minor MTE fixes, some per-cpu codegen fixes (which were found as part
of Mark's series adding preemptible this_cpu_*() operations) and a fix
for the Arm CMN PMU driver.
Summary:
- Fix hypercall arguments when resetting EL2 vectors during
hibernation
- Fix hibernation with 52-bit capable kernels on machines without
52-bit addressing, similarly to the recent kexec fix
- Fix a bunch of clumsy codegen issues with our per-cpu accessors
- Fix MTE ptrace documentation to reflect the de-facto ABI behaviour
- Fix pthread_join() usage in MTE selftest
- Fix port selection in the Arm CMN PMU driver"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mte: Fix PTRACE_{PEEK,POKE}MTETAGS error documentation
kselftest/arm64: Fix size of thread_data values for pthread_join()
arm64: percpu: Fix LSE operations on {8,16}-bit types
arm64: percpu: Fix this_cpu_and() mask generation
arm64: percpu: Fix this_cpu_write() casting
arm64: hibernate: clone only the linear map that exists at runtime
perf/arm-cmn: Fix wp_dev_sel2 setting for multi-DTM configurations
arm64: hibernate: pass HVC_SET_VECTORS args to the resume hvc
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||
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Linus Torvalds
|
b5a051f6b8 |
Including fixes from Netfilter, Bluetooth, IPSec and WiFi.
Previous releases - regressions:
- netfilter: hold reference on ct until flow is released
- bridge:
- move switchdev call outside rcu
- vlan: fix bugs caused by switchdev deletion errors
- wifi:
- mac80211: reset state when starting AP fails
- cfg80211: don't free driver-owned scan requests
- tcp: don't call skb_clone_and_charge_r() for close()d listener in tcp_v6_do_rcv().
- mptcp: return sk_wait_data() errors from recvmsg()
- xfrm: serialize state GC with device state flush
- drop_monitor: synchronize tracepoint unregistration on error path
- bluetooth:
- eir: validate service data length before reading UUID
- hci_sync: serialize local codec list cleanup
- RFCOMM: avoid socket lock inversion in listener cleanup
- eth: lan743x: fix RX checksum use-after-free
- eth: mvpp2: prevent buffer overflow in page_pool allocation
Previous releases - always broken:
- core: lock the socket in sock_gettstamp()
- neighbour: enforce min/max to NDTPA_INTERVAL_PROBE_TIME_MS.
- sched: codel: bound the dropping loop per dequeue call
- wifi: mac80211: include TIM bitmap control for buffered S1G mcast traffic
- psp: avoid conflicts with skb->decrypted and sk_validate_xmit_skb()
- xfrm: fix stack OOB read in iptfs_skb_reset_frag_walk()
- bluetooth: hci_qca: do not write to the serial port after it is closed
- dsa: mxl862xx: disable the stats poll on teardown
- eth: stmmac: fix TSO header length truncation
- eth: ip_tunnel: initialize `options_len` before referencing options
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-7.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from Netfilter, Bluetooth, IPSec and WiFi.
Previous releases - regressions:
- netfilter: hold reference on ct until flow is released
- bridge:
- move switchdev call outside rcu
- vlan: fix bugs caused by switchdev deletion errors
- wifi:
- mac80211: reset state when starting AP fails
- cfg80211: don't free driver-owned scan requests
- tcp: don't call skb_clone_and_charge_r() for close()d listener in
tcp_v6_do_rcv()
- mptcp: return sk_wait_data() errors from recvmsg()
- xfrm: serialize state GC with device state flush
- drop_monitor: synchronize tracepoint unregistration on error path
- bluetooth:
- eir: validate service data length before reading UUID
- hci_sync: serialize local codec list cleanup
- RFCOMM: avoid socket lock inversion in listener cleanup
- eth:
- lan743x: fix RX checksum use-after-free
- mvpp2: prevent buffer overflow in page_pool allocation
Previous releases - always broken:
- core: lock the socket in sock_gettstamp()
- neighbour: enforce min/max to NDTPA_INTERVAL_PROBE_TIME_MS.
- sched: codel: bound the dropping loop per dequeue call
- wifi: mac80211: include TIM bitmap control for buffered S1G mcast
traffic
- psp: avoid conflicts with skb->decrypted and sk_validate_xmit_skb()
- xfrm: fix stack OOB read in iptfs_skb_reset_frag_walk()
- bluetooth: hci_qca: do not write to the serial port after it is
closed
- dsa: mxl862xx: disable the stats poll on teardown
- eth:
- stmmac: fix TSO header length truncation
- ip_tunnel: initialize `options_len` before referencing options"
* tag 'net-7.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (159 commits)
mptcp: fix bad accounting in __mptcp_subflow_push_pending()
mptcp: close race between scheduler and state change
mptcp: avoid unneeded actions on subflow reset
net: skbuff: do not leave stale header offsets after pskb_carve()
selftests: net: packetdrill: test exclusion of old ACK from TCP fast path
tcp: exclude old ACKs from tcp fast path
dpll: reject a reference sync pin which is not on the pin's dpll
net: mvpp2: prevent buffer overflow in page_pool allocation
net: macb: fix ordering around PTP timestamp read
selftests: drv-net: psp: test PSP and TCP ULP mutual exclusion
net: psp: avoid conflicts with skb->decrypted and sk_validate_xmit_skb()
net: stmmac: preserve real_num_tx_queues on mqprio setup failure
net: stmmac: propagate FPE preemption-class mapping errors
net: wwan: t7xx: validate the netif index in t7xx_ccmni_recv_skb()
net: wwan: mhi_wwan_mbim: check skb_copy_bits() return value
net: wwan: mhi_wwan_mbim: guard against a cyclic NDP chain
net: ethernet: cortina: Ack RX overrun interrupt correctly
net: lock the socket in sock_gettstamp()
eth: fbnic: ring the doorbell if a burst ends in a drop
net: netsec: fix device_node reference leak on phy_np
...
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||
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Inbal Schussheim
|
d841cd7513 |
selftests: net: packetdrill: test exclusion of old ACK from TCP fast path
Add a packetdrill test for an in-sequence data segment carrying an
excessively old ACK.
Verify that the segment falls through from the TCP fast path to the slow
path, where the existing ACK validation rejects it and sends a challenge
ACK. The payload is not accepted and RCV.NXT remains unchanged.
Based on the reproducer from Commit
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Daniel Zahka
|
b4288c59bd |
selftests: drv-net: psp: test PSP and TCP ULP mutual exclusion
Test both setting PSP after TLS ULP, and TLS ULP after PSP. Add CONFIG_TLS=y to the drivers/net/config. Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20260915-psp-ktls-fix-v2-2-0eedc3b148ec@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Jamal Hadi Salim
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f6fb2ac5e1 |
selftests/tc-testing: add codel/fq_codel interval boundary cases
Add tdc cases locking the codel/fq_codel small-interval uAPI after
the dropping-loop bound (previous patch): sub-tick and two-tick
intervals are ACCEPTED (the loop bound makes them safe), the
1024us boundary is accepted, and a sub-tick target sojourn delay is
accepted (it does not participate in the control law):
codel: 6e44/a8c3/a695/9793 - interval 1us/3us/1024us and
target 1us accepted (rendered 0us/2us/1.02ms/0us by tc)
fq_codel: 1b4d/3540/49c5/3e0f - interval 1us/3us/1024us and
target 1us accepted
The positive cases match the full rendered qdisc line (tc renders
interval 1us as 0us, 3us as 2us, 1024us as 1.02ms), mirroring the
existing tests in these files.
These cases do not test the dropping-loop bound itself: tdc cannot
observe per-dequeue drop counts. c797 (fq_codel target 1 interval 1)
passes unmodified on the patched kernel, which is the uAPI evidence
for the previous patch.
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/QDISC-1L5H.v1.20260912080102@mojatatu.com.2
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Xuanqiang Luo
|
14c5eb685c |
selftests: tc-testing: test action batch deletion failure cleanup
Add tests for cleanup after a batched RTM_DELACTION request fails at a gact action bound to a filter. Check that subsequent actions retain their original reference counts and that earlier successful deletions are preserved. Cover failures at the first and middle entries. Verify that a remaining unbound action can be removed with one subsequent delete. Signed-off-by: Xuanqiang Luo <luoxuanqiang@kylinos.cn> Link: https://patch.msgid.link/20260910093413.34509-3-xuanqiang.luo@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Kuniyuki Iwashima
|
b645ccd410 |
selftest: af_unix: Add test case with mixed lowpoint in scm_rights.c.
The new test case creates two SCCs so that each of them has multiple scc_index. Without patch, GC cannot free the sockets and the test fails. # RUN scm_rights.dgram.mixed_lowpoints ... # scm_rights.c:176:mixed_lowpoints:Expected 0 (0) == ret (12) # mixed_lowpoints: Test terminated by assertion # FAIL scm_rights.dgram.mixed_lowpoints not ok 5 scm_rights.dgram.mixed_lowpoints ... # FAILED: 45 / 50 tests passed. # Totals: pass:45 fail:5 xfail:0 xpass:0 skip:0 error:0 With the patch, all tests pass. # PASSED: 50 / 50 tests passed. # Totals: pass:50 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260912030852.1467872-3-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Linus Torvalds
|
9b87fdc9af |
sched_ext: Fixes for v7.3-rc3
- An error raised by a BPF program before the scheduler finished enabling was consumed by the disable path's pre-enable shortcut, leaving a running scheduler that couldn't be disabled and was later freed while in use. - Two compat kfuncs dereferenced a NULL scheduler when handed an exited or idle task, oopsing the kernel. - Keep-running decisions in the dispatch path used the root scheduler's flags for tasks belonging to a sub-scheduler, causing warnings and stalls. - Schedulers with their own CPU ID mapping had no way to learn which IDs are online. Add a kernel-maintained online mask to plug the hole. - Cgroup idle state: the initial cpu.idle state wasn't passed on cgroup init and same-value rewrites delivered spurious callbacks. - Example scheduler fixes for a reenqueue loop on attach, placements on CPUs without effective grants, stalled partition work and stale idle tracking. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCaql+vQ4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGUTxAP9mhhePmghF/aq6SzeaVGeUXtclXRAGE1EAqea6 kzh50AEAiWXtFQu9dAF3EaXTWJkEJZkJUs0AO0wEXgghC0py9gY= =gcDW -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-7.3-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext fixes from Tejun Heo: - An error raised by a BPF program before the scheduler finished enabling was consumed by the disable path's pre-enable shortcut, leaving a running scheduler that couldn't be disabled and was later freed while in use. - Two compat kfuncs dereferenced a NULL scheduler when handed an exited or idle task, oopsing the kernel. - Keep-running decisions in the dispatch path used the root scheduler's flags for tasks belonging to a sub-scheduler, causing warnings and stalls. - Schedulers with their own CPU ID mapping had no way to learn which IDs are online. Add a kernel-maintained online mask to plug the hole. - Cgroup idle state: the initial cpu.idle state wasn't passed on cgroup init and same-value rewrites delivered spurious callbacks. - Example scheduler fixes for a reenqueue loop on attach, placements on CPUs without effective grants, stalled partition work and stale idle tracking. * tag 'sched_ext-for-7.3-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: sched_ext: Maintain an online cid mask in the scheduler arena sched_ext: scx_qmap: Restore unused idle claims from ops.dispatch() sched_ext: Close the pre-enable ops error claim window sched_ext: scx_qmap: Fix pending partition work handoff sched_ext: scx_qmap: Place only on cids whose caps are in effect sched_ext: scx_qmap: Do not add IMMED to rescue inserts sched_ext: Use @prev's scheduler for the keep decisions in dispatch_one() sched_ext: Rename sch to root_sch in dispatch_one() sched_ext: Fix NULL sched deref in kfunc sub-sched error paths sched_ext: Don't deliver duplicate ops.cgroup_set_idle() for same value sched_ext: Pass the initial cpu.idle state in scx_cgroup_init_args |
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Tejun Heo
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a9e3760b08 |
sched_ext: Maintain an online cid mask in the scheduler arena
Schedulers on the default cid mapping treat [0, nr_online_cids) as the online set and restart on hotplug. Schedulers that install their own mapping with scx_bpf_cid_override() have no way to learn which cids are online: the count no longer identifies members and the CPU-form cpumask is unusable from cid programs. This is an obvious hole in the cid API. Add scx_bpf_online_cmask(), a kernel-maintained cmask in the scheduler's arena, allocated alongside the per-CPU scratch masks and populated after the cid mapping is finalized and before ops.init(), for child schedulers too. The pointer stays valid through ops.exit() with no reference to take. It is the arena offset as a void pointer, the same form struct_ops arena arguments arrive in. The verifier types the void return as a scalar for the program's arena cast. The mask follows the SCX hotplug notifications: seeded from cpu_active_mask and updated before ops.cid_online/offline() runs, so it lags cpu_online_mask only inside a hotplug transition. Updates walk the scheduler list under the lock that also serializes unlinking. Reads are live, not atomic snapshots. Root initialization excludes hotplug. v2: Reworded the getter kerneldoc (Andrea Righi). Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Andrea Righi <arighi@nvidia.com> |
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Tejun Heo
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9a0b159ff1 |
sched_ext: scx_qmap: Restore unused idle claims from ops.dispatch()
scx_qmap tracks idle cids itself. pick_direct_dispatch_cid() claims a cid by clearing its bit and the task is inserted into that cid's local DSQ, which kicks the CPU. When the task does not arrive, for example because the insert fell back to the global DSQ after an affinity change, the CPU wakes, finds nothing and picks idle again. That is not an idle transition, so ops.update_idle() is not called and the cid stays marked busy until an unrelated task runs on it. Restore the claim from ops.dispatch(). The kick guarantees a dispatch on the kicked CPU, and when it finds nothing to run with a NULL @prev, the CPU is going back to idle. Document the pattern in ops.update_idle(), which reports only actual transitions. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Andrea Righi <arighi@nvidia.com> Cc: Andrea Righi <arighi@nvidia.com> |
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Jamal Hadi Salim
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0654f4dba1 |
selftests/tc-testing: add hhf hh_limit cap tests
Cover the new TCA_HHF_HH_FLOWS_LIMIT bound: values above 2*HH_FLOWS_CNT (4294967295, 65536, 2049) are rejected with the configured limit left untouched on both the change and the add path, the boundary value 2048 is accepted (installed at 100 first so the boundary change is load-bearing), and an add-time hh_limit 500 is preserved instead of being clobbered by the default. Reviewed-by: Victor Nogueira <victor@mojatatu.com> Tested-by: hybris <hybris@mojatatu.ai> Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/QDISC-B855.v1.20260911153152@mojatatu.com.2 Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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Linus Torvalds
|
6a0b3fb48d |
Bootconfig fixes for v7.3-rc3
- bootconfig: Fix integer overflow and truncation vulnerabilities in size checks
. tools/bootconfig: Fix integer overflow and truncation in size checks.
Fix size check bypasses caused by integer overflow and truncation
when parsing initrd or standalone bootconfig files, preventing
buffer overflow and out-of-bounds writes in the userspace tool.
. bootconfig: Fix integer overflow in initrd size check.
Fix pointer arithmetic wrap-around in get_boot_config_from_initrd()
when handling crafted huge size values, preventing fatal kernel
page faults during early boot.
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Merge tag 'bootconfig-fixes-v7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull bootconfig fixes from Masami Hiramatsu:
"Fix integer overflow and truncation in size checks.
- Fix size check bypasses caused by integer overflow and truncation
when parsing initrd or standalone bootconfig files, preventing
buffer overflow and out-of-bounds writes in the userspace tool.
- Fix pointer arithmetic wrap-around in get_boot_config_from_initrd()
when handling crafted huge size values, preventing fatal kernel
page faults during early boot"
* tag 'bootconfig-fixes-v7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
bootconfig: Fix integer overflow in initrd size check
tools/bootconfig: Fix integer overflow and truncation in size checks
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Linus Torvalds
|
feb66eea6b |
Fix misc objtool bugs:
- Fix potential klp-build allocation leak in
cleanup functionality handling kzalloc() failure
(Yafang Shao)
- Fix KLP checksum false positives triggering with
GCC, caused by quirks in string literal symbol
generation (Josh Poimboeuf)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-urgent-2026-09-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Ingo Molnar:
- Fix potential klp-build allocation leak in cleanup
functionality handling kzalloc() failure (Yafang Shao)
- Fix KLP checksum false positives triggering with GCC, caused
by quirks in string literal symbol generation (Josh Poimboeuf)
* tag 'objtool-urgent-2026-09-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool/klp: Fix checksums for constant pool references
klp-build: Fix wrong index in funcs cleanup error path
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||
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Linus Torvalds
|
52311be52f |
powerpc fixes for 7.3 #3
- powerpc/entry: Fix double accounting of user time on interrupt entry - Fix leak in htmdump_init_debugfs - KVM: PPC: Book3S HV: Set irqfd->producer only on success - powerpc/kexec_file: print configured kernel command line - Remove redundant early_init_dt_scan_root() call - misc fixes and cleanup Thanks to: Aboorva Devarajan, Amit Machhiwal, Athira Rajeev, Christophe Leroy, Christophe Leroy (CS GROUP), Kunwu Chan, leixiang, longlong yan, Michail Tatas, Mukesh Kumar Chaurasiya (IBM), Ritesh Harjani (IBM), Shivang Upadhyay, Sourabh Jain, Thibault Ferrante, Vaibhav Jain, Venkat Rao Bagalkote -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEqX2DNAOgU8sBX3pRpnEsdPSHZJQFAmqk60sACgkQpnEsdPSH ZJQsGRAArQi4cAIMzc0w44DA4othVOjUauS81/z0TfgxCT3pUPdG0C71x5uJrDpF Cdtc03xsxLURAGy1afQX9WsWQwpimWbGLhI/KQpSgGoKEq5RNVVMvOMKVzlB8Wmo XW/bfugU0jov8Iz6vH8iQAn2hazE52G98NHU6y8ZDcOrpFBA4RRY2CaqJIt40Xzm kxgkH773ErKPbyKycW3NBYxm9Bf2Cm3HUB1RO0OnAcLE2dHr3AqUGvt0ruLx+Cew YEJEenbKaxM8YWtji6cjkGKOCjgmKdUe+t+fh4G4KZVhG8whb4Ci/NhZxlkup9AC 64B3gkqIK3Hh+ufsvbSlN6/ignFtdZsioneLoMteCx7C0cs+HTnLBoghI3FlDNXc f0ywaNlZgzDt73zAejLMp4PPiqjMyELAq9V4sKatSTugexELM1t9b3f/pIa2kFNR s/VVXJ5YL2ni6gS26vg2GVOCZeBoJ5ucrxDiZVEyaWHpnuq1cu35a+Sbf4O0yVBK h70SVyi2OLUc+DNSMJMoIDfFg+6gfzo4cbbW/s2MV2hYrDRCu0Rx3xNzq1qNAiN0 RNSC4cOQ4hCrmORzEOJzuCAahRKGrFR3vaW73KhmhCNJ7DnDqJR2luSa7f4aKg8T d/z1FY7eTqNPbt4EH4+GB/MajF59xM8OihcnjbmoSDnSGUp2DTI= =zcTl -----END PGP SIGNATURE----- Merge tag 'powerpc-7.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Madhavan Srinivasan: - powerpc/entry: Fix double accounting of user time on interrupt entry - Fix leak in htmdump_init_debugfs - KVM: PPC: Book3S HV: Set irqfd->producer only on success - powerpc/kexec_file: print configured kernel command line - Remove redundant early_init_dt_scan_root() call - misc fixes and cleanup Thanks to Aboorva Devarajan, Amit Machhiwal, Athira Rajeev, Christophe Leroy, Christophe Leroy (CS GROUP), Kunwu Chan, leixiang, longlong yan, Michail Tatas, Mukesh Kumar Chaurasiya (IBM), Ritesh Harjani (IBM), Shivang Upadhyay, Sourabh Jain, Thibault Ferrante, Vaibhav Jain, and Venkat Rao Bagalkote * tag 'powerpc-7.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/pasemi: Add a null pointer check to the pas_setup_mce_regs powerpc/prom: Remove redundant early_init_dt_scan_root() call selftests/powerpc: use MAP_FAILED instead of (void *)-1 in tm-signal-context-force-tm powerpc/kexec_file: print configured kernel command line KVM: PPC: Book3S HV: Set irqfd->producer only on success powerpc/pseries/htmdump: Fix leak in htmdump_init_debugfs selftests/powerpc/tm: Fix tcheck() reading uninitialised CR value selftests/powerpc/pmu/ebb: fix lost_exception_test hang with sched yield change powerpc/entry: Fix double accounting of user time on interrupt entry |
||
|
Linus Torvalds
|
827751b699 |
RISC-V updates for v7.3-rc3
- Revert a bad fix, likely LLM-generated, in the pointer masking code
that confused the RISC-V hardware pointer masking implementation
with the Linux kernel tagged address feature
- Fix unexpected faults caused by kprobe instruction slot writes when
!CONFIG_STRICT_MODULE_RWX
- Fix unexpected faults on minimal configurations during runtime code
patching on !CONFIG_STRICT_MODULE_RWX systems
- Fix a misplaced variable clear causing incorrect reuse of previous
values in the RISC-V hardware feature probing code
- Fix two bugs in the PMU SBI perf code on rv32: use BIT_ULL rather
than BIT on 64-bit masks; and use a bitmap rather than an unsigned
long on a quantity that can exceed 32 bits
And a few miscellaneous cleanups:
- Avoid a potential dereference-before-NULL-pointer-check bug in the
PMU SBI perf driver
- Simplify the rv32 bug table code by using
CONFIG_GENERIC_BUG_RELATIVE_POINTERS (following x86 and PPC)
- Report the RISC-V standard ISA extensions Z[v]fhmin when support is
claimed for the superset RISC-V standard ISA extensions Z[v]fh; and
simplify our FPU test code to only check for the presence of the D
extension
- Use an existing kernel string helper in place of some open-coded
code in kernel/usercfi.c
- Fix some yamllint issues in the RISC-V DT bindings for CPUs
- Convert one use of __ASSEMBLY__ to __ASSEMBLER__ that snuck into the
RISC-V CFI selftest code
- Update the translation for the simplified Chinese translation of the
RISC-V kernel patch acceptance policy
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Merge tag 'riscv-for-linus-7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
"From a RISC-V point of view, there's one notable fix here, reverting
an earlier bogus fix to the pointer masking code. Fortunately the
practical impact appears to be small.
- Revert a bad fix, likely LLM-generated, in the pointer masking code
that confused the RISC-V hardware pointer masking implementation
with the Linux kernel tagged address feature
- Fix unexpected faults caused by kprobe instruction slot writes when
!CONFIG_STRICT_MODULE_RWX
- Fix unexpected faults on minimal configurations during runtime code
patching on !CONFIG_STRICT_MODULE_RWX systems
- Fix a misplaced variable clear causing incorrect reuse of previous
values in the RISC-V hardware feature probing code
- Fix two bugs in the PMU SBI perf code on rv32: use BIT_ULL rather
than BIT on 64-bit masks; and use a bitmap rather than an unsigned
long on a quantity that can exceed 32 bits
And a few miscellaneous cleanups:
- Avoid a potential dereference-before-NULL-pointer-check bug in the
PMU SBI perf driver
- Use CONFIG_GENERIC_BUG_RELATIVE_POINTERS to simplify the rv32 bug
table code (like x86 and PPC)
- Report the RISC-V standard ISA extensions Z[v]fhmin when support is
claimed for the superset RISC-V standard ISA extensions Z[v]fh; and
simplify our FPU test code to only check for the presence of the D
extension
- Use an existing kernel string helper in place of some open-coded
code in kernel/usercfi.c
- Fix some yamllint issues in the RISC-V DT bindings for CPUs
- Convert one use of __ASSEMBLY__ to __ASSEMBLER__ that snuck into
the RISC-V CFI selftest code
- Update the translation for the simplified Chinese translation of
the RISC-V kernel patch acceptance policy"
* tag 'riscv-for-linus-7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: skip software algning code for HAVE_EFFICIENT_UNALIGNED_ACCESS
kselftest/riscv: Replace __ASSEMBLY__ with __ASSEMBLER__
docs/zh_CN: Update arch/riscv/patch-acceptance.rst translation
dt-bindings: riscv: cpus: Fix yamllint style issues
riscv: hwprobe: simplify has_fpu() to check D extension only
perf: RISC-V: check cpu_hw_evt before dereference in overflow IRQ
riscv: report Zfhmin/Zvfhmin when Zfh/Zvfh are present
perf: RISC-V: store available counter mask as bitmap
perf: RISC-V: use BIT_ULL for u64 overflow masks
riscv: bug: Make RV32 use GENERIC_BUG_RELATIVE_POINTERS
riscv: hwprobe: initialize pair->value in hwprobe_one_pair()
riscv: use string helper in setup_global_riscv_enable()
Revert "riscv: Reset pmm when PR_TAGGED_ADDR_ENABLE is not set"
riscv: patch: skip fixmap mapping when kernel text is already writable
riscv: mm: make EXECMEM_KPROBES writable without CONFIG_STRICT_MODULE_RWX
|
||
|
Linus Torvalds
|
35ef102063 |
block-7.3-20260911
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||
|
Masami Hiramatsu (Google)
|
462d0b066b |
tools/bootconfig: Fix integer overflow and truncation in size checks
Sashiko reported that on 32-bit systems, if an attacker crafts size in
the bootconfig footer such that adding BOOTCONFIG_FOOTER_SIZE wraps around
(for instance, if size is 0xFFFFFFFF), the size check in
load_xbc_from_initrd() can be bypassed:
if (stat.st_size < size + BOOTCONFIG_FOOTER_SIZE) {
pr_err("bootconfig size is too big\n");
return -E2BIG;
}
Furthermore, on 64-bit systems with an initrd > 4.29 GB, comparing a
corrupted 32-bit size (e.g. 0xFFFFFFFF) against
stat.st_size - BOOTCONFIG_FOOTER_SIZE can also bypass the check if
size is not bounded. Similarly, load_xbc_file() passes 64-bit stat.st_size
directly into the 32-bit int size parameter of load_xbc_fd(), truncating
large standalone files (>= 2GB).
In both cases, passing 0xFFFFFFFF to load_xbc_fd() truncates to -1,
resulting in malloc(0), an integer overflow in read(), and an
out-of-bounds null-byte write.
Fix this by:
1. Rejecting size > XBC_DATA_MAX or
size > stat.st_size - BOOTCONFIG_FOOTER_SIZE in load_xbc_from_initrd().
2. Rejecting stat.st_size > XBC_DATA_MAX in load_xbc_file() before passing
it to load_xbc_fd().
3. Checking size < 0 || size > XBC_DATA_MAX defensively in load_xbc_fd().
Link: https://lore.kernel.org/all/178905332413.213925.3179977110281463499.stgit@devnote2/
Fixes:
|
||
|
Thomas Huth
|
3d1ba5cbfb |
kselftest/arm64: Fix size of thread_data values for pthread_join()
pthread_join() stores the thread's return value (a "void *", i.e.
8 bytes on 64 bit computers) into the address that is passed as second
parameter. However, the entries of thread_data are only normal "int"s,
i.e. only 4 bytes. The additional 4 bytes of the return value clobber
whatever is adjacent on the stack, i.e. other members of the thread_data
array (which will be re-written in the next iteration of the for-loop,
so that nobody noticed this problem), or another other local variable
on the stack for the last iteration. Use "intptr_t" to declare the
thread_data array entries with the correct size.
Fixes:
|
||
|
Yang Xiuwei
|
94b1a3ca9b |
selftests: ublk: add batch IO cases to recover_03
Add -b coverage for quiesce recover. Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn> Reviewed-by: Ming Lei <tom.leiming@gmail.com> Link: https://patch.msgid.link/20260821103047.369522-3-yangxiuwei@kylinos.cn Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
|
Linus Torvalds
|
7844502343 |
Nothing too exciting, usual stream of fixes.
Including fixes from Netfilter, Bluetooth and WPAN.
Current release - new code bugs:
- Bluetooth: hci_sync: fix not setting CE length properly
- eth: enic: match mailbox replies to request numbers
Previous releases - regressions:
- tunnels: drop stale dst when building an ICMP error for PMTUD
- ipv6: null-check fib6_node before accessing in __ip6_del_rt_siblings()
(bug in the rtnl_lock -> RCU conversion)
- eth: bnxt_en: fix crashes on Thor2 due to OOB coalescing buffer accesses
- eth: bnxt_en: prevent queue stop with deferred completions
Previous releases - always broken:
- eth: ice: don't dereference pointers from TP_printk()
- eth: fix OOB writes on ethtool flow rule dump in 3 drivers
- eth: mlx5: fix FEC configuration with RS_544_514_INTERLEAVED_QUAD
- dsa: tag_brcm: legacy FCS: request needed tailroom
Misc:
- net: cap tx_queue_len at S16_MAX to prevent oversized ring alloc
- ipv6: flowlabel: cap duplicate leases per socket
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Nothing too exciting, usual stream of fixes. Including fixes from
Netfilter, Bluetooth and WPAN.
Current release - new code bugs:
- Bluetooth: hci_sync: fix not setting CE length properly
- eth: enic: match mailbox replies to request numbers
Previous releases - regressions:
- tunnels: drop stale dst when building an ICMP error for PMTUD
- ipv6: null-check fib6_node before accessing in __ip6_del_rt_siblings()
(bug in the rtnl_lock -> RCU conversion)
- eth: bnxt_en:
- fix crashes on Thor2 due to OOB coalescing buffer accesses
- prevent queue stop with deferred completions
Previous releases - always broken:
- eth:
- ice: don't dereference pointers from TP_printk()
- fix OOB writes on ethtool flow rule dump in 3 drivers
- mlx5: fix FEC configuration with RS_544_514_INTERLEAVED_QUAD
- dsa: tag_brcm: legacy FCS: request needed tailroom
Misc:
- net: cap tx_queue_len at S16_MAX to prevent oversized ring alloc
- ipv6: flowlabel: cap duplicate leases per socket"
* tag 'net-7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (164 commits)
selftests: tc-testing: test action batch failure cleanup
net/sched: act_api: release all action references on NEWACTION failure
openvswitch: fix wrong flag value in get_ipv6_ext_hdrs()
ipmr: account multicast table and route memory
net: phy: dp83td510: handle the active-high LED polarity mode
net: macb: initialize PTP state before registering clock
net: hsr: enable promiscuous mode on interlink port with fwd offload
ipv6: fix fib6 walker UAF on seq stop
net: stmmac: fix TX descriptor availability check for TSO traffic
net/rds: fix tcp stream corruption with large pages
net: mana: restore the XDP program pointer when pre-allocation fails
net: phy: dp83867: handle the active-high LED polarity mode
octeontx2-af: fix PF/CGX debugfs PCI bus lookup
net: net_failover: Fix the deadlock in net_failover_slave_name_change()
net: phy: mediatek-ge: disable EEE on the MT7530 PHY
tcp: reject non zerocopy devmem tx
net: ethernet: mtk_eth_soc: populate lpi_interfaces to fix EEE support
net: dsa: mt7530: populate lpi_interfaces to fix EEE support
net: hinic: fix mailbox segment buffer overflow
net: sun4i-emac: fix missing of_node_put() for phy_node
...
|
||
|
Mahmoud Nagy Adam
|
c4fa55f85c |
selftests: ublk: install test_common.sh and trace/ scripts
Every ublk test script sources test_common.sh from its own directory:
. "$(cd "$(dirname "$0")" && pwd)"/test_common.sh
and test_generic_02/12 additionally run bpftrace against the scripts in
trace/. Neither test_common.sh nor trace/ is listed in TEST_FILES, so
"make install" does not copy them into the install directory and every
ublk test fails when run from there:
./test_generic_02.sh: line 4: .../kselftest_install/ublk/test_common.sh: No such file or directory
./test_generic_02.sh: line 8: _have_program: command not found
The bpftrace tests are affected even when bpftrace is installed: the
missing trace/*.bt makes bpftrace exit immediately, and the tests then
report a skip rather than a failure, which hides the problem.
Add both to TEST_FILES, matching how other selftests ship their sourced
helpers (see kexec/kexec_common_lib.sh and zram/zram_lib.sh).
Fixes:
|
||
|
Xuanqiang Luo
|
2a86bbed9f |
selftests: tc-testing: test action batch failure cleanup
Add tests for cleanup after a batched RTM_NEWACTION request fails. Replace an existing gact action bound to a filter, then fail a later entry by requesting goto chain without a classifier context. Check that the bound action's reference count returns to its original value. Also cover a successfully initialized new action between the bound action and the failing entry, verifying that its reserved index can be reused. Repeat the bound action in another batch to check that each temporary reference to the same action is released. Signed-off-by: Xuanqiang Luo <luoxuanqiang@kylinos.cn> Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com> Link: https://patch.msgid.link/20260909070336.32979-3-xuanqiang.luo@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Victor Nogueira
|
e190a7aabb |
selftests/tc-testing: Add cls_route bucket move and change tests
Add 4 tdc tests for the cls_route bugs fixed earlier in this series: - Delete a route filter that was moved to another bucket (a7d2): Validates that deleting a filter, and making a bucket empty, does not leave a dangling empty bucket - Try to change a route filter onto an already used handle (c05a): Validates that attempting to change an existing filter's handle to an already taken one fails - Replace a route filter that shares its key with another filter (3f21): Validates that an in-place replace keeps the handle userspace named the filter by, rather than dropping the 0x7F00 bits from it - Replace both route filters sharing a key (9d0e): Validates that replacing one of the two does not make the other one unreplaceable Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/20260907192133.2639067-5-victor@mojatatu.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
longlong yan
|
bf1d828781 |
selftests/powerpc: use MAP_FAILED instead of (void *)-1 in tm-signal-context-force-tm
mmap() is documented to return MAP_FAILED on error, but tm-signal-context-force-tm.c compares the return value against (void *)-1. Replace these with the standard MAP_FAILED macro for better readability and type safety. Signed-off-by: longlong yan <yanlonglong@kylinos.cn> Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Reviewed-by: Amit Machhiwal <amachhiw@linux.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260722023428.932-1-yanlonglong@kylinos.cn |
||
|
Thibault Ferrante
|
ed28b16eab |
selftests/powerpc/tm: Fix tcheck() reading uninitialised CR value
tcheck() is used to check the current transaction state (active,
suspended, doomed) via the "tcheck" instruction, which writes its
result into CR field 0. The inline asm declared a GPR output operand
for this result but never actually moved the CR into it.
Every caller (tcheck_doomed(), tcheck_active(), tcheck_suspended(),
tcheck_transactional()) has effectively been testing bits of an unrelated,
arbitrary register value since this helper was introduced.
The "& 4" mask discards the TDOOMED and TS_lsb (suspended) bits before
they ever reach the callers, so tcheck_doomed() and tcheck_suspended()
can never return true, and tcheck_transactional() degrades to being
equivalent to tcheck_active().
Fix tcheck() to actually move CR into the output register with mfcr,
and widen the mask from "& 4" to "& 0xf" so the full CR0 nibble
(TDOOMED | TS_msb | TS_lsb | reserved) is preserved for the callers.
This bug has been present since tcheck() was introduced.
Link: https://bugs.launchpad.net/bugs/2107442
Fixes:
|
||
|
Athira Rajeev
|
ef17515a8e |
selftests/powerpc/pmu/ebb: fix lost_exception_test hang with sched yield change
commit
|
||
|
Matthieu Baerts (NGI0)
|
d23c41366e |
selftests: mptcp: lib: get counters for the right test
When the value for a MIB counter is required, mptcp_lib_get_counter is
called. It tries to use the cache, if available. If not it falls back to
calling 'nstat' directly by looking at the absolute counters.
That's an issue for tests that don't recreate the netns for each
subtest. In this case, 'nstat -a' will look at the counters for the
netns.
Instead, it should look at the increment for the current test, by using
the history recorded in /tmp/<ns>.nstat, if available, and not using
'-a' which was dumping the absolute values.
While at it, rename the previous 'hist' variable to 'cache' as it was
used to look at the cache, not the nstat history.
Fixes:
|
||
|
Matthieu Baerts (NGI0)
|
e1a56368ea |
selftests: mptcp: lib: dump nstat for the right test
In case of errors, mptcp_lib_pr_nstat is called to dump the nstat
counters, but for some tests, it was dumping the counters for all
subtests, not just the current one.
That's an issue for tests that don't recreate the netns for each
subtest, e.g. mptcp_connect.sh. In this case, 'nstat -a' will look at
the absolute counters since the creation of the netns, making
debugging harder.
Instead, it should dump the counters for the current test, by using the
history recorded in /tmp/<ns>.nstat if available, and not using '-a'
which was dumping the absolute values instead of calculating increments.
While at it, rename the previous 'hist' variable to 'cache' as it was
used to look at the cache, not the nstat history.
Fixes:
|
||
|
Gang Yan
|
730444f094 |
selftests: mptcp: fix an UAF in mptcp_connect.c
At the end of 'sock_connect_mptcp()', it calls 'freeaddrinfo(addr)',
the 'peer' pointer (which points into 'addr') remains. Later, the main
loop uses this peer pointer for reconnection attempts. If the memory has
been freed and reused, the address data could be overwritten, resulting
in an invalid remote address.
This patch keeps the addrinfo list allocated for the whole process
lifetime so "peer" remains valid across reconnects; the memory will be
released at exit() time.
Fixes:
|
||
|
Linus Torvalds
|
50d05c7c76 |
Landlock fix for v7.3-rc3
-----BEGIN PGP SIGNATURE----- iIYEABYKAC4WIQSVyBthFV4iTW/VU1/l49DojIL20gUCaqF0GxAcbWljQGRpZ2lr b2QubmV0AAoJEOXj0OiMgvbSs+YBALj3Ttl+T8cnEmxExfOYnPt6eL+oIsZFo6HU zSXUqyiNAQDxtpucp/JgwBNbuk0XA+BfLSVWuw94jdqbPpCrjUW0BA== =egGv -----END PGP SIGNATURE----- Merge tag 'landlock-7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux Pull Landlock fixes from Mickaël Salaün: "This fixes a use-after-free and a lockdep assert NULL dereferencing, and properly truncates too-long strings printed by a Landlock tracepoint. Most of the changes are brought by new tests" * tag 'landlock-7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: landlock: Test trace path output boundaries landlock: Bound escaped trace path output landlock: Clean up ruleset validation checks selftests/landlock: Test abstract socket trace name limits landlock: Fix use-after-free of the source's parent directory |
||
|
Mickaël Salaün
|
d41d0021a6
|
landlock: Test trace path output boundaries
Use focused KUnit tests to exercise the renderer's internal boundary and composition contracts with synthetic scratch states, including both sibling-helper evaluation orders. Check the exact output and reservation boundaries, including a four-byte octal escape accepted at exact capacity and rejected one byte short. Also verify an unchanged cursor on failure, that bracketed process names and embedded NUL bytes remain data, and that input ellipsis bytes are escaped rather than mistaken for the raw truncation marker. The composition test requires generic trace output helpers. Enable CONFIG_FTRACE and CONFIG_SCHED_TRACER because the latter selects the otherwise-hidden CONFIG_TRACING support required by trace_print_flags_seq(). Use kselftests to exercise the complete tracefs path for both affected filesystem events. A valid path containing 2640 spaces exceeds the scratch output budget. Require its escaped prefix to end in the raw UTF-8 ellipsis while access_rights and blockers remain intact. This division keeps the exact safety contract compiler-independent while proving that real tracepoints preserve their surrounding symbolic fields. The end-to-end assertions fail after a full fix revert with both GCC and Clang, while the composition KUnit test fails if the scratch reserve is removed. Cc: Günther Noack <gnoack@google.com> Link: https://patch.msgid.link/20260907154401.124362-2-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net> |
||
|
Alice Mikityanska
|
18a9a43421 |
selftests: net: Test UDP length overflow with PMTU discover and big MTU
Two previous commits fixed overflow of UDP length when setsockopt IP(V6)_MTU_DISCOVER is set to IPV6_PMTUDISC_DO or IP(V6)_PMTUDISC_PROBE, and a large packet is sent over a netdev with an unusually large MTU. This commit adds the selftests that replicate the described steps to reproduce for IPv6 and IPv4, and also one more test that ensures that sending UDP jumbograms over a raw socket is still possible after the fix. Signed-off-by: Alice Mikityanska <alice@isovalent.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20260901195714.673548-4-alice.kernel@fastmail.im Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Kuniyuki Iwashima
|
ca0b0a8687 |
selftest: af_unix: Add zero-buffer test for msg_oob.c
The previous patches fixed two issues related to zero-length buffer with MSG_PEEK for MSG_OOB skb. Let's add corresponding tests in msg_oob.c. Without this series: # FAILED: 50 / 60 tests passed. # Totals: pass:50 fail:10 xfail:0 xpass:0 skip:0 error:0 With this series: # PASSED: 60 / 60 tests passed. # Totals: pass:60 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20260902202202.892676-4-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
28924df2a0 |
perf-tools fixes for v7.3-rc3
Here are two simple fixes for this cycle. - Do not use separate debug files for Intel PT decoding. - Fix size of raw data in the PowerPC VPA DTL samples. Signed-off-by: Namhyung Kim <namhyung@kernel.org> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSo2x5BnqMqsoHtzsmMstVUGiXMgwUCap7zPAAKCRCMstVUGiXM g57gAP9skjhPwFoQ8H5eGnR6dO3N8WDVrl+ZcQ/l8R9Yk+Q6aQD9EVM/2NUyGxtK /LyQTM+WRl2UE26H7Fm39THNhoJGcAY= =/JlH -----END PGP SIGNATURE----- Merge tag 'perf-tools-fixes-for-v7.3-2026-09-07' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools Pull perf tools fixes from Namhyung Kim: "Two simple fixes for this cycle: - Do not use separate debug files for Intel PT decoding - Fix size of raw data in the PowerPC VPA DTL samples" * tag 'perf-tools-fixes-for-v7.3-2026-09-07' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: perf powerpc-vpadtl: Fix raw_size of DTL samples perf symbol: Do not use debug file as the binary type |
||
|
Mickaël Salaün
|
e7557b9ef7
|
selftests/landlock: Test abstract socket trace name limits
The landlock_deny_scope_abstract_unix_socket event captures binary socket names with __string_len(), whose dynamic field reserves an extra byte for the NUL terminator. The printer subtracts this byte before escaping the content. Exercise the minimum accepted address length, which has no name content, and the maximum sockaddr_un length, which has 107 content bytes. Check the exact trace output at both boundaries. The existing stream and datagram variants share this event, so the boundary variants only need the stream path. Because these boundary names are fixed, run the fixture in a private network namespace. Abstract UNIX socket names are scoped by network namespace, preventing concurrent bind() calls from colliding. The lower-bound test confirms that the subtraction recovers zero instead of underflowing. Cc: Günther Noack <gnoack@google.com> Link: https://patch.msgid.link/CAL4aGcVcT0VWVFmGi_vLqxxZ9KdOHfGXYZtKjBdvoUyFjbu5=A@mail.gmail.com Link: https://patch.msgid.link/20260907103503.109461-1-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net> |
||
|
Tejun Heo
|
89ff16f071 |
sched_ext: scx_qmap: Fix pending partition work handoff
qmap can leave partition work pending with no runner. The effective-cap
callback publishes its request after failing to acquire part_busy, while
redistribute() checks for pending work before releasing it. Either ordering
can miss a request arriving as the current runner finishes, delaying the
update until the round-robin timer runs.
Publish requests before trying to become the runner and release part_busy
before checking for more work. Have all holders drain pending requests after
releasing it, including the stats flush. Distinguish mask refreshes from
repartitions so an effective-cap update only rebuilds the partition when a
repartition was also requested.
Fixes:
|
||
|
Linus Torvalds
|
2beb1b31a1 |
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:
"This mainly contains verifier fixes that address bugs reported by
Nicholas Carlini.
- Fix incorrect non-NULL inference in pointer comparisons: pointer
types that may be NULL at runtime, pointers with unbounded offsets,
JMP32 comparisons with zero, and imprecise zero registers (Eduard
Zingerman)
- Fix precision tracking for half-dead zero spills, ld_abs/ld_ind
implicit subprog exit, bpf_loop() callbacks, linked scalar ids and
NULL call arguments (Eduard Zingerman)
- Reject BPF_PSEUDO_FUNC reference to the main program, fix zero
extension of arena 32-bit cmpxchg, don't rewrite bpf_fastcall
patterns entered by a jump (Eduard Zingerman)
- Fix percpu map update and BPF_F_CPU validation with sparse CPU IDs
(Hui Su)
- Fix NULL-ptr-derefs in bpf_snprintf_btf() for void and VAR types,
and reject key-less BTF for hash maps (Jiayuan Chen)
- Various fixes (Kumar Kartikeya Dwivedi):
- Fix out-of-bounds access in disassembler on invalid LDSX
instruction
- mark siginfo of signal tracepoints as scalar and
sched_process_wait argument as nullable
- mark faultable stack helpers as sleepable
- reject tail calls and legacy packet loads from callbacks
- enforce rbtree callback lock restrictions for resilient locks
- require MEM_PERCPU for percpu kptr stores
- clear NON_OWN_REF after RCU protection ends
- mark NULL kptr stores precise
- preserve inner map identity in callback frames
- reject non-scalar bpf_loop() iteration counts
- Fix trampoline allocation slowdown on x86 by using
EXECMEM_MODULE_DATA (Mike Rapoport)
- Keep bpf_refcount_acquire() nullable for borrowed RCU kptrs and
reject untrusted allocated-object pointers (Ning Ding)
- Fix special fields handling in recycled rhtab elements (Nuoqi Gui,
Yuan Chen)"
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: (86 commits)
bpf, riscv: Make arena support depend on ZACAS
selftests/bpf: Test pointer bpf_loop iteration count rejection
bpf: Reject non-scalar bpf_loop iteration counts
bpf: use mark_arg_precision() in check_mem_size_reg()
bpf: propagate mark_chain_precision() errors out of loop_flag_is_zero()
selftests/bpf: precision of a NULL global subprogram BTF_ID argument
bpf: mark a NULL BTF_ID argument of a global subprogram precise
selftests/bpf: precision of a NULL kfunc argument
bpf: mark a NULL kfunc argument precise
selftests/bpf: precision of a NULL global subprogram memory argument
bpf: mark a NULL memory argument of a call precise
selftests/bpf: precision of a NULL helper argument
bpf: mark a NULL call argument precise
selftests/bpf: Test inner map identities in callbacks
bpf: Preserve inner map identity in callback frames
selftests/bpf: Test imprecise scalar kptr stores
bpf: Mark NULL kptr stores precise
selftests/bpf: Test rhtab kptr cancellation semantics
bpf: Cancel special fields when recycling rhtab elements
selftests/bpf: Test timer field on recycled rhtab element
...
|
||
|
Kumar Kartikeya Dwivedi
|
bde8901ea1 |
selftests/bpf: Test pointer bpf_loop iteration count rejection
Add a verifier test that leaves the raw tracepoint context pointer in R1 when calling bpf_loop(). This is the smallest trigger for the incorrect precision backtracking: it reuses an existing callback and needs no maps or userspace setup. Expect an ordinary scalar-type rejection. Without the verifier fix, the test instead reaches precision backtracking and reports an internal "backtracking misuse" error. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://patch.msgid.link/20260905014735.1452988-3-memxor@gmail.com Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> |
||
|
Tejun Heo
|
63b4ff6222 |
sched_ext: scx_qmap: Place only on cids whose caps are in effect
qmap decides placements from self_cids, which redistribute() derives from
the caps view at ops.sub_caps_updated() time. That view runs ahead of the
cpus: a granted cid can be in self_cids before its cpu has reported the caps
in effect through ops.sub_ecaps_updated(). ops.update_idle() only comes once
BASE is in effect, so the idle-gated placements reach such a cid only
through an idle bit left over from an earlier hold. The highpri scan has no
gate at all:
parent cpu Y, qmap cpu X
grants ENQ on X to qmap
sub_caps_updated() adds X
to self_cids
highpri scan moves a task
to X with PREEMPT
caps not in effect,
move denied, task
bounced with REENQ_CAP
reject drain, enqueue
the scan moves it to X
again
denied again
dispatch syncs ecaps,
sub_ecaps_updated(X)
Every highpri move to X in that window is denied and bounced. The two
callbacks are meant to split the roles: ops.sub_caps_updated() tracks what
the node holds and drives what it delegates to its children, while
ops.sub_ecaps_updated() says whether a task can run on a cpu now. qmap used
the first for both. Track the caps in effect from ops.sub_ecaps_updated() as
avail_cids and place only on self_cids & avail_cids, so that self_cids stays
the delegation split and avail_cids gates the placement.
The stranded tests keep self_cids, as they ask whether the split gives the
task anywhere at all. A highpri task whose self_cids lack caps in effect
waits for them instead of being moved and bounced.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Andrea Righi <arighi@nvidia.com>
|
||
|
Tejun Heo
|
a0d356696f |
sched_ext: scx_qmap: Do not add IMMED to rescue inserts
qmap's stranded fallback forces a task that can run on none of its self cids onto its first allowed cid with SCX_ENQ_RESCUE, and adds SCX_ENQ_IMMED when that cid is a time-share it holds. On such a cid the insert stops being a rescue request: 1. A task is enqueued while none of its allowed cids is in self_cids. At attach self_cids is still empty. 2. qmap inserts it into cid 0's local DSQ with SCX_ENQ_RESCUE | SCX_ENQ_IMMED. 3. The kernel finds ENQ_IMMED held on cid 0, admits the insert and skips the rescue diversion. 4. cid 0's cpu is busy, so the IMMED task is bounced back to qmap with SCX_ENQ_REENQ. 5. qmap's enqueue sees the same inputs and repeats step 2. Nothing runs in between. 6. The reenqueue limit ejects qmap with SCX_EXIT_ERROR_REENQ. The caps granted during the parent's ops.sub_attach() are delivered after the sub already holds its tasks, while the per-cid effective caps that mark the time-shares are delivered from the first dispatch after bypass lifts, so every attach that receives a time-share on a task's first allowed cid starts the loop. Drop IMMED from the rescue inserts so that step 3 diverts to the rescue path. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Andrea Righi <arighi@nvidia.com> |
||
|
Jamal Hadi Salim
|
8f0229bef3 |
selftests: tc-testing: update ETS test 41f5 for clamped quanta
Commit "net/sched: ets: clamp quantum in parse and fallback paths" moved the quantum floor into ets_quantum_parse(), so every explicitly configured quantum is now clamped to [256, 1 << 20], not just the psched_mtu() fallback. Test 41f5 passes "quanta 4294967294 1 1" and matches the values back verbatim, so all three bands now differ from what it expects: before: bands 3 quanta 4294967294 1 1 after: bands 3 quanta 1048576 256 256 Update the match pattern accordingly. Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Link: https://patch.msgid.link/QDISC-0CFC.v3.20260901204856@mojatatu.com.10 Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
214f4aeb22 |
LoongArch fixes for v7.3-rc2
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||
|
Eduard Zingerman
|
9195779166 |
selftests/bpf: precision of a NULL global subprogram BTF_ID argument
Check that mark_chain_precision() is called for a NULL pointer passed as an __arg_trusted __arg_nullable argument of a global subprogram. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-8-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Eduard Zingerman
|
562d266d3f |
selftests/bpf: precision of a NULL kfunc argument
Check that mark_chain_precision() is called for a NULL pointer passed as a __nullable kfunc memory argument. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-6-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Eduard Zingerman
|
100f4cc0d5 |
selftests/bpf: precision of a NULL global subprogram memory argument
Check that mark_chain_precision() is called for a NULL pointer passed as a nullable pointer argument of a global subprogram. (Pointer arguments of the global subprograms are nullable by default). Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-4-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Eduard Zingerman
|
593c8eb0fb |
selftests/bpf: precision of a NULL helper argument
Check that mark_chain_precision() is called for a NULL nullable memory argument and for the zero flags argument of bpf_get_local_storage(). Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-2-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Eduard Zingerman
|
1a3a10b030 |
bpf: mark a NULL call argument precise
check_func_arg() allows bpf_register_is_null() for nullable arguments
w/o marking the underlying scalar register precise. Hence a checkpoint
created on such a path would prune against arbitrary scalar value.
check_helper_call() enforces second parameter of the
bpf_get_local_storage() to be zero, w/o marking the underlying scalar
register precise. Hence a checkpoint created on such a path would
prune against arbitrary scalar value.
Grouping these two into one patch, as they share the same fixes tag.
Fixes:
|
||
|
Jamal Hadi Salim
|
0a7252d7f8 |
selftests: tc-testing: add tx_queue_len cap regression tests
Add nine test cases for the S16_MAX tx_queue_len cap to the
pfifo_fast suite. Netlink cases exercise the ifla_policy bound
(2/3); the two new sysfs cases exercise the netif_change_tx_queue_len()
choke point that 1/3 owns (SIOCSIFTXQLEN shares it; the ioctl is not
portably reachable from tdc):
- dbe3: set txqueuelen 32767 (S16_MAX) - accepted, pins the exact
boundary value.
- b50e: set txqueuelen 32768 - rejected with -ERANGE.
- 40f8: write 32768 to /sys/class/net/*/tx_queue_len - rejected
(covers patch 1/3 directly; netlink cannot reach this path).
- 4b6e: write 32767 via sysfs - accepted, boundary positive control
for the patch-1 path.
- b90d: create a dummy with txqueuelen 32767 - accepted.
- 57ab: create a dummy with txqueuelen 32768 - rejected at netlink
parse time.
- e777: create a dummy with txqueuelen 500000 - rejected (the v1
bypass path flagged by review).
- 31ac: create a veth with an oversized txqueuelen on the peer nest -
rejected (the peer nest is parsed against ifla_policy too).
- b567: create a veth with txqueuelen on both ends within the cap -
accepted (positive control for the peer nest).
The three negative-creation verifies assert device absence
("ip -o link show" must not contain the device), not merely absence
of a qlen pattern - the device does not exist when creation fails, so
the exit code carries the signal and the verify adds content.
The v1 04b5 "resize rollback" case is dropped: with the cap checked
first, netif_change_tx_queue_len() returns -ERANGE before the write,
the notifier or any qdisc resize, so the case exercised no resize and
no rollback. It was also nondeterministic: pre-patch, the resize
issues three ~11 MB kvmallocs for qlen 500000 which normally succeed,
so the case passed on an unfixed kernel only under memory pressure -
its outcome depended on the test host's free memory.
Test commands run inside the netns, but nsPlugin creates the veth
peer in the root namespace, so the teardown deletes the in-ns end
only; deleting the peer via the pair is implicit.
Note: iproute2 treats "txqueuelen" appearing after "type X" as a
link-type attribute and silently drops it, so the creation cases
place it before "type" to actually reach the kernel.
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/QDISC-2899.v2.20260901233641@mojatatu.com.3
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
||
|
Seungwon Bae
|
98fc57d167 |
vxlan: reject dynamic fdb entries that reference a nexthop id
The commit cited in the Fixes tag allowed VXLAN FDB entries to point to
FDB nexthops so that overlay traffic could be load balanced across
multiple VTEPs. Such entries can only be configured from user space,
cannot be learned and cannot roam. They only make sense with a user space
control plane such as E-VPN where data plane learning is disabled.
Despite that, the VXLAN driver does not currently prevent such entries
from being configured with the "dynamic" flag. The per-nexthop FDB list
is only protected by the per-device hash lock, which is not sufficient
when two VXLAN devices point to the same FDB nexthop and therefore share
the list. Aging runs in softirq context without RTNL, so an entry deleted
by one device can race with an addition or deletion from the other,
leading to list corruption:
list_del corruption. next->prev should be ffff8881069d9548, but was
dead000000000122. (next=ffff8881069d9448)
WARNING: CPU: 0 PID: 90 at lib/list_debug.c:65
__list_del_entry_valid_or_report+0x1aa/0x210
...
vxlan_fdb_destroy+0x5b8/0xad0
vxlan_cleanup+0x328/0x450
call_timer_fn+0x2a/0x1c0
run_timer_softirq+0x18c/0x210
BUG: KASAN: slab-use-after-free in vxlan_fdb_destroy
Fix this by rejecting the bogus configuration of dynamic FDB entries that
point to FDB nexthops, both when created and when an existing entry is
updated. As such, the per-nexthop FDB list is only ever mutated under the
RTNL lock. Add test cases to make sure that this does not regress in the
future.
Fixes:
|
||
|
Linus Torvalds
|
654ae5d73c |
drm fixes for 7.3-rc2
core: - Fix drm_crtc_commit leak when PAGE_FLIP_EVENT is used, dma-buf: - Publish the dma-buf only after copy_to_user succeeds - fix some kernel-doc warnings atomic-state-helpers: - set pixel_blend_mode to prop default on reset sysfb: - Fix integer overflow - fix constant comparison bug pagemap: - Prevent double migration of device pages - Reset migration page count on eviction retry - dma-unmap pages before handling migration errors - use after free fixes prime: - fix prime exports tracing amdgpu: - Fix for drm_amdgpu_info_device with mixed 64 bit kernel and 32 bit userspace - plane blend mode fixes - SR-IOV fix - GFX8 fix - MES queue reset fix - GPUVM fixes - DCN 6 warning fix - DCN 3.5/3.6 fix - DML fix - Backlight fix - Colorop fix - DC get_estimated_bw() fix - devcoredump fix - Userq fixes - APU PSP fix - Cursor fix amdkfd: - MES queue eviction fix - MQD debugfs fix xe: - oa uapi error handling fix - drm info message to report FLAT_CSS base misalignment. i915: - Drop an accidentally duplicated panel fitter call in DP MST - Fix DDI clock programming for Cx0 and LT PHY - Fix PTL CDCLK handling at probe, causing a glitch - Fix dg2_power_well_count() return type - Fix a NULL pointer deref at forced probe - Fix selective fetch disable amdxdna: - out-of-bounds access fix - reject commands chains with no commands - handle chained mapping BO failures - refuse to flush an imported BO ethosu: - handle mmio mapping failures - handle storage modes only on hardware that supports it - fix job completion fence cleanup fastrpc: - Publish the dma-buf only after copy_to_user succeeds gud: - Improve TV modes and rotation handling nouveau: - use-after-free fixes - add missing scanline position support - HDMI and DP fixes - null pointer dereference fix - dmem accounting fixes for large folios - use write-combined maps for coherent qaic: - out-of-bounds access fix tegra: - Add blend mode properties virtio: - exit path and error handling fixes -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmqbH88ACgkQDHTzWXnE hr7stA//SAJOADL8CuoBzSyAX7zoqhVErYk798+4r5tPFJ5CzjkZVxGRGur7XWbm atezEEKaMTEz2BDVb1JDNRI1X1Yq9GtfWM860hUXmYHCegeO49B9lDnS1v0HZweD PQvPhCqvJpOOF6D8sjYFjVNvi0OrY0JVRlzsnMNmTIlw0xbg01lqn/oWgRA7qdvq Zo1k1yEPlK3jV2YuX674n7NoioFqeiSWBo9PzIX+yghagg2LrrS1Plx4RFA/B6bm Czt/x7WPE7lvoZqyDGBwlAY/dta3bagCFkGoDwb2Q1B3MjYXKcKBS0aGL9PyOgu/ /9dNqvR4aDu9CXvNwb3kNbqjJL7DdFBCzwm78PNc43TizkR4WXCBXCNxJOf93e6h Bwx0GamXQJeGI6xNvQpEssUxezuS3wdoNZ0Rbk3nxMXlvf7OB/sgwkNYVCNKkk/V dSMOr1XB9pBGmtuWFPOf1kq/is4P4Ns/m8Rutfp5SBJNU9Air5ECblRNNkqFuOtS 582QAM+7xp6zIbepWALu8TTNQMsNKlDwiNc3JOH3Ks3wZ0wExXMTIaSJ7NHOxYj/ B9gWEN+g1LreFHDaCzR1xRetO1bIHNGMNhuqChXj8K8vuDoVPP8FAvKzKEy/iyIl CRQXLPSV8LjqKL5d5YW3QFvwUSwJwGr3fXCWd1Voo26dL4DOEx0= =vHdE -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2026-09-05' of https://gitlab.freedesktop.org/drm/kernel Pull drm fixes from Dave Airlie: "Lots of scattered fixes: nouveau has a bunch of display fixes for blackwell GPUs that should mean we light up monitors properly and fix some desktop rendering problems, amdgpu and intel display changes as usual. There also changes to the core pagemap, then the usual amouny of AI inspired validation fixes. core: - Fix drm_crtc_commit leak when PAGE_FLIP_EVENT is used dma-buf: - Publish the dma-buf only after copy_to_user succeeds - fix some kernel-doc warnings atomic-state-helpers: - set pixel_blend_mode to prop default on reset sysfb: - Fix integer overflow - fix constant comparison bug pagemap: - Prevent double migration of device pages - Reset migration page count on eviction retry - dma-unmap pages before handling migration errors - use after free fixes prime: - fix prime exports tracing amdgpu: - Fix for drm_amdgpu_info_device with mixed 64 bit kernel and 32 bit userspace - plane blend mode fixes - SR-IOV fix - GFX8 fix - MES queue reset fix - GPUVM fixes - DCN 6 warning fix - DCN 3.5/3.6 fix - DML fix - Backlight fix - Colorop fix - DC get_estimated_bw() fix - devcoredump fix - Userq fixes - APU PSP fix - Cursor fix amdkfd: - MES queue eviction fix - MQD debugfs fix xe: - oa uapi error handling fix - drm info message to report FLAT_CSS base misalignment i915: - Drop an accidentally duplicated panel fitter call in DP MST - Fix DDI clock programming for Cx0 and LT PHY - Fix PTL CDCLK handling at probe, causing a glitch - Fix dg2_power_well_count() return type - Fix a NULL pointer deref at forced probe - Fix selective fetch disable amdxdna: - out-of-bounds access fix - reject commands chains with no commands - handle chained mapping BO failures - refuse to flush an imported BO ethosu: - handle mmio mapping failures - handle storage modes only on hardware that supports it - fix job completion fence cleanup fastrpc: - Publish the dma-buf only after copy_to_user succeeds gud: - Improve TV modes and rotation handling nouveau: - use-after-free fixes - add missing scanline position support - HDMI and DP fixes - null pointer dereference fix - dmem accounting fixes for large folios - use write-combined maps for coherent qaic: - out-of-bounds access fix tegra: - Add blend mode properties virtio: - exit path and error handling fixes * tag 'drm-fixes-2026-09-05' of https://gitlab.freedesktop.org/drm/kernel: (83 commits) drm/xe/vram: report FLAT_CCS base misalignment MAINTAINERS, mailmap: use Aditya Garg's linux.dev account drm/amd/display: use plane color_mgmt_changed to track colorop changes drm/amdgpu/userq: fix struct drm_amdgpu_info_device padding for 32bit compile drm/amd/display: Fix cursor disable with horizontally split planes drm/amdgpu/userq: dont overwrite the error of subsequent map call drm/amdgpu: Skip accessing psp rum time db for APUs drm/amdgpu: update the fw version for gfx12 userqueues drm/amdgpu: update the fw version for gfx11 userqueues drm/amdgpu: fix byte/dword unit mismatch in coredump IB dump drm/amdkfd: fix scope of mqd_mgr dereference in pqm_debugfs_mqds drm/amd/display: fix division by zero in get_estimated_bw() drm/amd/display: use halving distribution for all encode-to-linear curves drm/amd/display: Fix backlight control for luminance-capable OLED drm/amd/display: Remove const Qualifier From Non-Pointer Fields drm/amd/display: Set gpuvm min page size to 4K on dcn35/36 drm/amd/display: Fix DCN5/6 DML2 compilation warnings drm/amdgpu: fix Idle BOs list in VM debugfs status info drm/amdgpu: use AMDGPU_GPU_PAGE_SHIFT instead of PAGE_SHIFT drm/amdgpu: Update queue reset support version ... |