Including:
- Intel VT-d:
- Abort all pending requests on dev_tlb_inv timeout to avoid
hardlockup
- Limit IOPF handling to PRI-capable device to avoid SVA attach
failure
- AMD-Vi: Make sure identity domain is not used when SNP is active
- Core fixes:
- Handle mapping IOVA 0x0 correctly
- Fix crash in SVA code
- Kernel-doc fix in IO-PGTable code
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Merge tag 'iommu-fixes-v7.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu fixes from Joerg Roedel:
"Intel VT-d:
- Abort all pending requests on dev_tlb_inv timeout to avoid
hardlockup
- Limit IOPF handling to PRI-capable device to avoid SVA attach
failure
AMD-Vi:
- Make sure identity domain is not used when SNP is active
Core fixes:
- Handle mapping IOVA 0x0 correctly
- Fix crash in SVA code
- Kernel-doc fix in IO-PGTable code"
* tag 'iommu-fixes-v7.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
iommu/amd: Block identity domain when SNP enabled
iommu/sva: Fix crash in iommu_sva_unbind_device()
iommu/io-pgtable: fix all kernel-doc warnings in io-pgtable.h
iommu: Fix mapping check for 0x0 to avoid re-mapping it
iommu/vt-d: Only handle IOPF for SVA when PRI is supported
iommu/vt-d: Fix intel iommu iotlb sync hardlockup and retry
- Fix DWARF parsing for SCS/PAC patching to work with very large modules
(such as the amdgpu driver).
- Fixes to the mpam resctrl driver.
- Fix broken handling of 52-bit physical addresses when sharing memory
from within a realm.
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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:
"There's a small crop of fixes for the MPAM resctrl driver, a fix for
SCS/PAC patching with the AMDGPU driver and a page-table fix for
realms running with 52-bit physical addresses:
- Fix DWARF parsing for SCS/PAC patching to work with very large
modules (such as the amdgpu driver)
- Fixes to the mpam resctrl driver
- Fix broken handling of 52-bit physical addresses when sharing
memory from within a realm"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: realm: Fix PTE_NS_SHARED for 52bit PA support
arm_mpam: Force __iomem casts
arm_mpam: Disable preemption when making accesses to fake MSC in kunit test
arm_mpam: Fix null pointer dereference when restoring bandwidth counters
arm64/scs: Fix handling of advance_loc4
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Merge tag 'hyperv-fixes-signed-20260319' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull Hyper-V fixes from Wei Liu:
- Fix ARM64 MSHV support (Anirudh Rayabharam)
- Fix MSHV driver memory handling issues (Stanislav Kinsburskii)
- Update maintainers for Hyper-V DRM driver (Saurabh Sengar)
- Misc clean up in MSHV crashdump code (Ard Biesheuvel, Uros Bizjak)
- Minor improvements to MSHV code (Mukesh R, Wei Liu)
- Revert not yet released MSHV scrub partition hypercall (Wei Liu)
* tag 'hyperv-fixes-signed-20260319' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
mshv: Fix error handling in mshv_region_pin
MAINTAINERS: Update maintainers for Hyper-V DRM driver
mshv: Fix use-after-free in mshv_map_user_memory error path
mshv: pass struct mshv_user_mem_region by reference
x86/hyperv: Use any general-purpose register when saving %cr2 and %cr8
x86/hyperv: Use current_stack_pointer to avoid asm() in hv_hvcrash_ctxt_save()
x86/hyperv: Save segment registers directly to memory in hv_hvcrash_ctxt_save()
x86/hyperv: Use __naked attribute to fix stackless C function
Revert "mshv: expose the scrub partition hypercall"
mshv: add arm64 support for doorbell & intercept SINTs
mshv: refactor synic init and cleanup
x86/hyperv: print out reserved vectors in hexadecimal
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Merge tag 'v7.0-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- Fix reporting of i_blocks
- Fix Kerberos mounts with different usernames to same server
- Trivial comment cleanup
* tag 'v7.0-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb: client: fix generic/694 due to wrong ->i_blocks
cifs: smb1: fix comment typo
smb: client: fix krb5 mount with username option
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Merge tag 'v7.0-rc4-ksmbd-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
- Three use after free fixes (in close, in compounded ops, and in tree
disconnect)
- Multichannel fix
- return proper volume identifier (superblock uuid if available) in
FS_OBJECT_ID queries
* tag 'v7.0-rc4-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: fix use-after-free in durable v2 replay of active file handles
ksmbd: fix use-after-free of share_conf in compound request
ksmbd: use volume UUID in FS_OBJECT_ID_INFORMATION
ksmbd: unset conn->binding on failed binding request
ksmbd: fix share_conf UAF in tree_conn disconnect
One fix for the cacheflush() syscall which had D/I caches mixed up.
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Merge tag 'parisc-for-7.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fix from Helge Deller:
"Fix for the cacheflush() syscall which had D/I caches mixed up"
* tag 'parisc-for-7.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Flush correct cache in cacheflush() syscall
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Merge tag 'pci-v7.0-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fixes from Bjorn Helgaas:
- Create pwrctrl devices only for DT nodes below a PCI controller that
describe PCI devices and are related to a power supply; this prevents
waiting indefinitely for pwrctrl drivers that will never probe
(Manivannan Sadhasivam)
- Restore endpoint BAR mapping on subrange setup failure to make
selftest reliable (Koichiro Den)
* tag 'pci-v7.0-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI: endpoint: pci-epf-test: Roll back BAR mapping when subrange setup fails
PCI/pwrctrl: Create pwrctrl devices only for PCI device nodes
PCI/pwrctrl: Ensure that remote endpoint node parent has supply requirement
When updating ->i_size, make sure to always update ->i_blocks as well
until we query new allocation size from the server.
generic/694 was failing because smb3_simple_falloc() was missing the
update of ->i_blocks after calling cifs_setsize(). So, fix this by
updating ->i_blocks directly in cifs_setsize(), so all places that
call it doesn't need to worry about updating ->i_blocks later.
Reported-by: Shyam Prasad N <sprasad@microsoft.com>
Closes: https://lore.kernel.org/r/CANT5p=rqgRwaADB=b_PhJkqXjtfq3SFv41SSTXSVEHnuh871pA@mail.gmail.com
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Cc: David Howells <dhowells@redhat.com>
Cc: linux-cifs@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Nothing too exciting here, mostly fixes for corner cases.
Current release - fix to a fix:
- bonding: prevent potential infinite loop in bond_header_parse()
Current release - new code bugs:
- wifi: mac80211: check tdls flag in ieee80211_tdls_oper
Previous releases - regressions:
- af_unix: give up GC if MSG_PEEK intervened
- netfilter: conntrack: add missing netlink policy validations
- NFC: nxp-nci: allow GPIOs to sleep
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from wireless, Bluetooth and netfilter.
Nothing too exciting here, mostly fixes for corner cases.
Current release - fix to a fix:
- bonding: prevent potential infinite loop in bond_header_parse()
Current release - new code bugs:
- wifi: mac80211: check tdls flag in ieee80211_tdls_oper
Previous releases - regressions:
- af_unix: give up GC if MSG_PEEK intervened
- netfilter: conntrack: add missing netlink policy validations
- NFC: nxp-nci: allow GPIOs to sleep"
* tag 'net-7.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (78 commits)
MPTCP: fix lock class name family in pm_nl_create_listen_socket
icmp: fix NULL pointer dereference in icmp_tag_validation()
net: dsa: bcm_sf2: fix missing clk_disable_unprepare() in error paths
net: shaper: protect from late creation of hierarchy
net: shaper: protect late read accesses to the hierarchy
net: mvpp2: guard flow control update with global_tx_fc in buffer switching
nfnetlink_osf: validate individual option lengths in fingerprints
netfilter: nf_tables: release flowtable after rcu grace period on error
netfilter: bpf: defer hook memory release until rcu readers are done
net: bonding: fix NULL deref in bond_debug_rlb_hash_show
udp_tunnel: fix NULL deref caused by udp_sock_create6 when CONFIG_IPV6=n
net/mlx5e: Fix race condition during IPSec ESN update
net/mlx5e: Prevent concurrent access to IPSec ASO context
net/mlx5: qos: Restrict RTNL area to avoid a lock cycle
ipv6: add NULL checks for idev in SRv6 paths
NFC: nxp-nci: allow GPIOs to sleep
net: macb: fix uninitialized rx_fs_lock
net: macb: fix use-after-free access to PTP clock
netdevsim: drop PSP ext ref on forward failure
wifi: mac80211: always free skb on ieee80211_tx_prepare_skb() failure
...
In mptcp_pm_nl_create_listen_socket(), use entry->addr.family
instead of sk->sk_family for lock class setup. The 'sk' parameter
is a netlink socket, not the MPTCP subflow socket being created.
Fixes: cee4034a3d ("mptcp: fix lockdep false positive in mptcp_pm_nl_create_listen_socket()")
Signed-off-by: Li Xiasong <lixiasong1@huawei.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260319112159.3118874-1-lixiasong1@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
icmp_tag_validation() unconditionally dereferences the result of
rcu_dereference(inet_protos[proto]) without checking for NULL.
The inet_protos[] array is sparse -- only about 15 of 256 protocol
numbers have registered handlers. When ip_no_pmtu_disc is set to 3
(hardened PMTU mode) and the kernel receives an ICMP Fragmentation
Needed error with a quoted inner IP header containing an unregistered
protocol number, the NULL dereference causes a kernel panic in
softirq context.
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
RIP: 0010:icmp_unreach (net/ipv4/icmp.c:1085 net/ipv4/icmp.c:1143)
Call Trace:
<IRQ>
icmp_rcv (net/ipv4/icmp.c:1527)
ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207)
ip_local_deliver_finish (net/ipv4/ip_input.c:242)
ip_local_deliver (net/ipv4/ip_input.c:262)
ip_rcv (net/ipv4/ip_input.c:573)
__netif_receive_skb_one_core (net/core/dev.c:6164)
process_backlog (net/core/dev.c:6628)
handle_softirqs (kernel/softirq.c:561)
</IRQ>
Add a NULL check before accessing icmp_strict_tag_validation. If the
protocol has no registered handler, return false since it cannot
perform strict tag validation.
Fixes: 8ed1dc44d3 ("ipv4: introduce hardened ip_no_pmtu_disc mode")
Reported-by: Xiang Mei <xmei5@asu.edu>
Signed-off-by: Weiming Shi <bestswngs@gmail.com>
Link: https://patch.msgid.link/20260318130558.1050247-4-bestswngs@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Smatch reports:
drivers/net/dsa/bcm_sf2.c:997 bcm_sf2_sw_resume() warn:
'priv->clk' from clk_prepare_enable() not released on lines: 983,990.
The clock enabled by clk_prepare_enable() in bcm_sf2_sw_resume()
is not released if bcm_sf2_sw_rst() or bcm_sf2_cfp_resume() fails.
Add the missing clk_disable_unprepare() calls in the error paths
to properly release the clock resource.
Fixes: e9ec5c3bd2 ("net: dsa: bcm_sf2: request and handle clocks")
Reviewed-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Anas Iqbal <mohd.abd.6602@gmail.com>
Link: https://patch.msgid.link/20260318084212.1287-1-mohd.abd.6602@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Consolidate the handling of two special cases in the idle loop that
occur when only one CPU idle state is present (Rafael Wysocki)
- Fix a race condition related to device removal in the runtime PM
core code that may cause a stale device object pointer to be
dereferenced (Bart Van Assche)
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Merge tag 'pm-7.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix an idle loop issue exposed by recent changes and a race
condition related to device removal in the runtime PM core code:
- Consolidate the handling of two special cases in the idle loop that
occur when only one CPU idle state is present (Rafael Wysocki)
- Fix a race condition related to device removal in the runtime PM
core code that may cause a stale device object pointer to be
dereferenced (Bart Van Assche)"
* tag 'pm-7.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: runtime: Fix a race condition related to device removal
sched: idle: Consolidate the handling of two special cases
- Update the format of the last argument of _DSM to avoid printing
confusing error messages in some cases (Saket Dumbre)
- Fix MFD child automatic modprobe issue by removing a stale check
from acpi_companion_match() (Pratap Nirujogi)
- Prevent possible use-after-free in acpi_processor_errata_piix4()
from occurring by rearranging the code to print debug messages
while holding references to relevant device objects (Rafael Wysocki)
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Merge tag 'acpi-7.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI support fixes from Rafael Wysocki:
"These fix an MFD child automatic modprobe issue introduced recently,
an ACPI processor driver issue introduced by a previous fix and an
ACPICA issue causing confusing messages regarding _DSM arguments to be
printed:
- Update the format of the last argument of _DSM to avoid printing
confusing error messages in some cases (Saket Dumbre)
- Fix MFD child automatic modprobe issue by removing a stale check
from acpi_companion_match() (Pratap Nirujogi)
- Prevent possible use-after-free in acpi_processor_errata_piix4()
from occurring by rearranging the code to print debug messages
while holding references to relevant device objects (Rafael
Wysocki)"
* tag 'acpi-7.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: bus: Fix MFD child automatic modprobe issue
ACPI: processor: Fix previous acpi_processor_errata_piix4() fix
ACPICA: Update the format of Arg3 of _DSM
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Merge tag 'nf-26-03-19' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Florian Westphal says:
====================
netfilter: updates for net
The following patchset contains Netfilter fixes for *net*:
1) Fix UaF when netfilter bpf link goes away while nfnetlink dumps
current hook list, we have to wait until rcu readers are gone.
2) Fix UaF when flowtable fails to register all devices, similar
bug as 1). From Pablo Neira Ayuso.
3) nfnetlink_osf fails to properly validate option length fields.
From Weiming Shi.
netfilter pull request nf-26-03-19
* tag 'nf-26-03-19' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
nfnetlink_osf: validate individual option lengths in fingerprints
netfilter: nf_tables: release flowtable after rcu grace period on error
netfilter: bpf: defer hook memory release until rcu readers are done
====================
Link: https://patch.msgid.link/20260319093834.19933-1-fw@strlen.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Merge an ACPICA fix and a core ACPI support code fix for 7.0-rc5:
- Update the format of the last argument of _DSM to avoid printing
confusing error messages in some cases (Saket Dumbre)
- Fix MFD child automatic modprobe issue by removing a stale check
from acpi_companion_match() (Pratap Nirujogi)
* acpica:
ACPICA: Update the format of Arg3 of _DSM
* acpi-bus:
ACPI: bus: Fix MFD child automatic modprobe issue
Merge a fix for a race condition related to device removal (Bart Van
Assche) for 7.0-rc5.
* pm-runtime:
PM: runtime: Fix a race condition related to device removal
We look up a netdev during prep of Netlink ops (pre- callbacks)
and take a ref to it. Then later in the body of the callback
we take its lock or RCU which are the actual protections.
The netdev may get unregistered in between the time we take
the ref and the time we lock it. We may allocate the hierarchy
after flush has already run, which would lead to a leak.
Take the instance lock in pre- already, this saves us from the race
and removes the need for dedicated lock/unlock callbacks completely.
After all, if there's any chance of write happening concurrently
with the flush - we're back to leaking the hierarchy.
We may take the lock for devices which don't support shapers but
we're only dealing with SET operations here, not taking the lock
would be optimizing for an error case.
Fixes: 93954b40f6 ("net-shapers: implement NL set and delete operations")
Link: https://lore.kernel.org/20260309173450.538026-1-p@1g4.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20260317161014.779569-2-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
We look up a netdev during prep of Netlink ops (pre- callbacks)
and take a ref to it. Then later in the body of the callback
we take its lock or RCU which are the actual protections.
This is not proper, a conversion from a ref to a locked netdev
must include a liveness check (a check if the netdev hasn't been
unregistered already). Fix the read cases (those under RCU).
Writes needs a separate change to protect from creating the
hierarchy after flush has already run.
Fixes: 4b623f9f0f ("net-shapers: implement NL get operation")
Reported-by: Paul Moses <p@1g4.org>
Link: https://lore.kernel.org/20260309173450.538026-1-p@1g4.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20260317161014.779569-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
With LPA/LPA2, the top bits of the PFN (Bits[51:48]) end up in the lower bits
of the PTE. So, simply creating a mask of the "top IPA bit" doesn't work well
for these configurations to set the "top" bit at the output of Stage1
translation.
Fix this by using the __phys_to_pte_val() to do the right thing for all
configurations.
Tested using, kvmtool, placing the memory at a higher address (-m <size>@<Addr>).
e.g:
# lkvm run --realm -c 4 -m 512M@@128T -k Image --console serial
sh-5.0# dmesg | grep "LPA2\|RSI"
[ 0.000000] RME: Using RSI version 1.0
[ 0.000000] CPU features: detected: 52-bit Virtual Addressing (LPA2)
[ 0.777354] CPU features: detected: 52-bit Virtual Addressing for KVM (LPA2)
Fixes: 3993069549 ("arm64: realm: Query IPA size from the RMM")
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Steven Price <steven.price@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
mvpp2_bm_switch_buffers() unconditionally calls
mvpp2_bm_pool_update_priv_fc() when switching between per-cpu and
shared buffer pool modes. This function programs CM3 flow control
registers via mvpp2_cm3_read()/mvpp2_cm3_write(), which dereference
priv->cm3_base without any NULL check.
When the CM3 SRAM resource is not present in the device tree (the
third reg entry added by commit 60523583b0 ("dts: marvell: add CM3
SRAM memory to cp11x ethernet device tree")), priv->cm3_base remains
NULL and priv->global_tx_fc is false. Any operation that triggers
mvpp2_bm_switch_buffers(), for example an MTU change that crosses
the jumbo frame threshold, will crash:
Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000000
Mem abort info:
ESR = 0x0000000096000006
EC = 0x25: DABT (current EL), IL = 32 bits
pc : readl+0x0/0x18
lr : mvpp2_cm3_read.isra.0+0x14/0x20
Call trace:
readl+0x0/0x18
mvpp2_bm_pool_update_fc+0x40/0x12c
mvpp2_bm_pool_update_priv_fc+0x94/0xd8
mvpp2_bm_switch_buffers.isra.0+0x80/0x1c0
mvpp2_change_mtu+0x140/0x380
__dev_set_mtu+0x1c/0x38
dev_set_mtu_ext+0x78/0x118
dev_set_mtu+0x48/0xa8
dev_ifsioc+0x21c/0x43c
dev_ioctl+0x2d8/0x42c
sock_ioctl+0x314/0x378
Every other flow control call site in the driver already guards
hardware access with either priv->global_tx_fc or port->tx_fc.
mvpp2_bm_switch_buffers() is the only place that omits this check.
Add the missing priv->global_tx_fc guard to both the disable and
re-enable calls in mvpp2_bm_switch_buffers(), consistent with the
rest of the driver.
Fixes: 3a616b92a9 ("net: mvpp2: Add TX flow control support for jumbo frames")
Signed-off-by: Muhammad Hammad Ijaz <mhijaz@amazon.com>
Reviewed-by: Gunnar Kudrjavets <gunnarku@amazon.com>
Link: https://patch.msgid.link/20260316193157.65748-1-mhijaz@amazon.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
nfnl_osf_add_callback() validates opt_num bounds and string
NUL-termination but does not check individual option length fields.
A zero-length option causes nf_osf_match_one() to enter the option
matching loop even when foptsize sums to zero, which matches packets
with no TCP options where ctx->optp is NULL:
Oops: general protection fault
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
RIP: 0010:nf_osf_match_one (net/netfilter/nfnetlink_osf.c:98)
Call Trace:
nf_osf_match (net/netfilter/nfnetlink_osf.c:227)
xt_osf_match_packet (net/netfilter/xt_osf.c:32)
ipt_do_table (net/ipv4/netfilter/ip_tables.c:293)
nf_hook_slow (net/netfilter/core.c:623)
ip_local_deliver (net/ipv4/ip_input.c:262)
ip_rcv (net/ipv4/ip_input.c:573)
Additionally, an MSS option (kind=2) with length < 4 causes
out-of-bounds reads when nf_osf_match_one() unconditionally accesses
optp[2] and optp[3] for MSS value extraction. While RFC 9293
section 3.2 specifies that the MSS option is always exactly 4
bytes (Kind=2, Length=4), the check uses "< 4" rather than
"!= 4" because lengths greater than 4 do not cause memory
safety issues -- the buffer is guaranteed to be at least
foptsize bytes by the ctx->optsize == foptsize check.
Reject fingerprints where any option has zero length, or where an MSS
option has length less than 4, at add time rather than trusting these
values in the packet matching hot path.
Fixes: 11eeef41d5 ("netfilter: passive OS fingerprint xtables match")
Reported-by: Xiang Mei <xmei5@asu.edu>
Signed-off-by: Weiming Shi <bestswngs@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Call synchronize_rcu() after unregistering the hooks from error path,
since a hook that already refers to this flowtable can be already
registered, exposing this flowtable to packet path and nfnetlink_hook
control plane.
This error path is rare, it should only happen by reaching the maximum
number hooks or by failing to set up to hardware offload, just call
synchronize_rcu().
There is a check for already used device hooks by different flowtable
that could result in EEXIST at this late stage. The hook parser can be
updated to perform this check earlier to this error path really becomes
rarely exercised.
Uncovered by KASAN reported as use-after-free from nfnetlink_hook path
when dumping hooks.
Fixes: 3b49e2e94e ("netfilter: nf_tables: add flow table netlink frontend")
Reported-by: Yiming Qian <yimingqian591@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Yiming Qian reports UaF when concurrent process is dumping hooks via
nfnetlink_hooks:
BUG: KASAN: slab-use-after-free in nfnl_hook_dump_one.isra.0+0xe71/0x10f0
Read of size 8 at addr ffff888003edbf88 by task poc/79
Call Trace:
<TASK>
nfnl_hook_dump_one.isra.0+0xe71/0x10f0
netlink_dump+0x554/0x12b0
nfnl_hook_get+0x176/0x230
[..]
Defer release until after concurrent readers have completed.
Reported-by: Yiming Qian <yimingqian591@gmail.com>
Fixes: 84601d6ee6 ("bpf: add bpf_link support for BPF_NETFILTER programs")
Signed-off-by: Florian Westphal <fw@strlen.de>
- cfg80211:
- guarantee pmsr work is cancelled
- mac80211:
- reject TDLS operations on non-TDLS stations
- fix crash in AP_VLAN bandwidth change
- fix leak or double-free on some TX preparation
failures
- remove keys needed for beacons _after_ stopping
those
- fix debugfs static branch race
- avoid underflow in inactive time
- fix another NULL dereference in mesh on invalid
frames
- ti/wlcore: avoid infinite realloc loop
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Merge tag 'wireless-2026-03-18' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Just a few updates:
- cfg80211:
- guarantee pmsr work is cancelled
- mac80211:
- reject TDLS operations on non-TDLS stations
- fix crash in AP_VLAN bandwidth change
- fix leak or double-free on some TX preparation
failures
- remove keys needed for beacons _after_ stopping
those
- fix debugfs static branch race
- avoid underflow in inactive time
- fix another NULL dereference in mesh on invalid
frames
- ti/wlcore: avoid infinite realloc loop
* tag 'wireless-2026-03-18' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: mac80211: always free skb on ieee80211_tx_prepare_skb() failure
wifi: wlcore: Return -ENOMEM instead of -EAGAIN if there is not enough headroom
wifi: mac80211: fix NULL deref in mesh_matches_local()
wifi: mac80211: check tdls flag in ieee80211_tdls_oper
wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down
wifi: mac80211: Fix static_branch_dec() underflow for aql_disable.
mac80211: fix crash in ieee80211_chan_bw_change for AP_VLAN stations
wifi: mac80211: use jiffies_delta_to_msecs() for sta_info inactive times
wifi: mac80211: remove keys after disabling beaconing
wifi: mac80211_hwsim: fully initialise PMSR capabilities
====================
Link: https://patch.msgid.link/20260318172515.381148-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When CONFIG_IPV6 is disabled, the udp_sock_create6() function returns 0
(success) without actually creating a socket. Callers such as
fou_create() then proceed to dereference the uninitialized socket
pointer, resulting in a NULL pointer dereference.
The captured NULL deref crash:
BUG: kernel NULL pointer dereference, address: 0000000000000018
RIP: 0010:fou_nl_add_doit (net/ipv4/fou_core.c:590 net/ipv4/fou_core.c:764)
[...]
Call Trace:
<TASK>
genl_family_rcv_msg_doit.constprop.0 (net/netlink/genetlink.c:1114)
genl_rcv_msg (net/netlink/genetlink.c:1194 net/netlink/genetlink.c:1209)
[...]
netlink_rcv_skb (net/netlink/af_netlink.c:2550)
genl_rcv (net/netlink/genetlink.c:1219)
netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
netlink_sendmsg (net/netlink/af_netlink.c:1894)
__sock_sendmsg (net/socket.c:727 (discriminator 1) net/socket.c:742 (discriminator 1))
__sys_sendto (./include/linux/file.h:62 (discriminator 1) ./include/linux/file.h:83 (discriminator 1) net/socket.c:2183 (discriminator 1))
__x64_sys_sendto (net/socket.c:2213 (discriminator 1) net/socket.c:2209 (discriminator 1) net/socket.c:2209 (discriminator 1))
do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
entry_SYSCALL_64_after_hwframe (net/arch/x86/entry/entry_64.S:130)
This patch makes udp_sock_create6 return -EPFNOSUPPORT instead, so
callers correctly take their error paths. There is only one caller of
the vulnerable function and only privileged users can trigger it.
Fixes: fd384412e1 ("udp_tunnel: Seperate ipv6 functions into its own file.")
Reported-by: Weiming Shi <bestswngs@gmail.com>
Signed-off-by: Xiang Mei <xmei5@asu.edu>
Link: https://patch.msgid.link/20260317010241.1893893-1-xmei5@asu.edu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tariq Toukan says:
====================
mlx5 misc fixes 2026-03-16
This patchset provides misc bug fixes from the team to the mlx5
core and Eth drivers.
====================
Link: https://patch.msgid.link/20260316094603.6999-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In IPSec full offload mode, the device reports an ESN (Extended
Sequence Number) wrap event to the driver. The driver validates this
event by querying the IPSec ASO and checking that the esn_event_arm
field is 0x0, which indicates an event has occurred. After handling
the event, the driver must re-arm the context by setting esn_event_arm
back to 0x1.
A race condition exists in this handling path. After validating the
event, the driver calls mlx5_accel_esp_modify_xfrm() to update the
kernel's xfrm state. This function temporarily releases and
re-acquires the xfrm state lock.
So, need to acknowledge the event first by setting esn_event_arm to
0x1. This prevents the driver from reprocessing the same ESN update if
the hardware sends events for other reason. Since the next ESN update
only occurs after nearly 2^31 packets are received, there's no risk of
missing an update, as it will happen long after this handling has
finished.
Processing the event twice causes the ESN high-order bits (esn_msb) to
be incremented incorrectly. The driver then programs the hardware with
this invalid ESN state, which leads to anti-replay failures and a
complete halt of IPSec traffic.
Fix this by re-arming the ESN event immediately after it is validated,
before calling mlx5_accel_esp_modify_xfrm(). This ensures that any
spurious, duplicate events are correctly ignored, closing the race
window.
Fixes: fef0667893 ("net/mlx5e: Fix ESN update kernel panic")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260316094603.6999-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The query or updating IPSec offload object is through Access ASO WQE.
The driver uses a single mlx5e_ipsec_aso struct for each PF, which
contains a shared DMA-mapped context for all ASO operations.
A race condition exists because the ASO spinlock is released before
the hardware has finished processing WQE. If a second operation is
initiated immediately after, it overwrites the shared context in the
DMA area.
When the first operation's completion is processed later, it reads
this corrupted context, leading to unexpected behavior and incorrect
results.
This commit fixes the race by introducing a private context within
each IPSec offload object. The shared ASO context is now copied to
this private context while the ASO spinlock is held. Subsequent
processing uses this saved, per-object context, ensuring its integrity
is maintained.
Fixes: 1ed78fc033 ("net/mlx5e: Update IPsec soft and hard limits")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260316094603.6999-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
A lock dependency cycle exists where:
1. mlx5_ib_roce_init -> mlx5_core_uplink_netdev_event_replay ->
mlx5_blocking_notifier_call_chain (takes notifier_rwsem) ->
mlx5e_mdev_notifier_event -> mlx5_netdev_notifier_register ->
register_netdevice_notifier_dev_net (takes rtnl)
=> notifier_rwsem -> rtnl
2. mlx5e_probe -> _mlx5e_probe ->
mlx5_core_uplink_netdev_set (takes uplink_netdev_lock) ->
mlx5_blocking_notifier_call_chain (takes notifier_rwsem)
=> uplink_netdev_lock -> notifier_rwsem
3: devlink_nl_rate_set_doit -> devlink_nl_rate_set ->
mlx5_esw_devlink_rate_leaf_tx_max_set -> esw_qos_devlink_rate_to_mbps ->
mlx5_esw_qos_max_link_speed_get (takes rtnl) ->
mlx5_esw_qos_lag_link_speed_get_locked ->
mlx5_uplink_netdev_get (takes uplink_netdev_lock)
=> rtnl -> uplink_netdev_lock
=> BOOM! (lock cycle)
Fix that by restricting the rtnl-protected section to just the necessary
part, the call to netdev_master_upper_dev_get and speed querying, so
that the last lock dependency is avoided and the cycle doesn't close.
This is safe because mlx5_uplink_netdev_get uses netdev_hold to keep the
uplink netdev alive while its master device is queried.
Use this opportunity to rename the ambiguously-named "hold_rtnl_lock"
argument to "take_rtnl" and remove the "_locked" suffix from
mlx5_esw_qos_lag_link_speed_get_locked.
Fixes: 6b4be64fd9 ("net/mlx5e: Harden uplink netdev access against device unbind")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260316094603.6999-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- avoid OGM aggregation when skb tailroom is insufficient, by Yang Yang
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Merge tag 'batadv-net-pullrequest-20260317' of https://git.open-mesh.org/linux-merge
Simon Wunderlich says:
====================
Here is a batman-adv bugfix:
- avoid OGM aggregation when skb tailroom is insufficient, by Yang Yang
* tag 'batadv-net-pullrequest-20260317' of https://git.open-mesh.org/linux-merge:
batman-adv: avoid OGM aggregation when skb tailroom is insufficient
====================
Link: https://patch.msgid.link/20260317160002.1869478-1-sw@simonwunderlich.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2026-03-17 (igc, iavf, libie)
Kohei Enju adds use of helper function to add missing update of
skb->tail when padding is needed for igc.
Zdenek Bouska clears stale XSK timestamps when taking down Tx rings on
igc.
Petr Oros changes handling of iavf VLAN filter handling when an added
VLAN is also on the delete list to which can race and cause the VLAN
filter to not be added.
Michal frees cmd_buf for libie firmware logging to stop memory leaks.
* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
libie: prevent memleak in fwlog code
iavf: fix VLAN filter lost on add/delete race
igc: fix page fault in XDP TX timestamps handling
igc: fix missing update of skb->tail in igc_xmit_frame()
====================
Link: https://patch.msgid.link/20260317211906.115505-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
__in6_dev_get() can return NULL when the device has no IPv6 configuration
(e.g. MTU < IPV6_MIN_MTU or after NETDEV_UNREGISTER).
Add NULL checks for idev returned by __in6_dev_get() in both
seg6_hmac_validate_skb() and ipv6_srh_rcv() to prevent potential NULL
pointer dereferences.
Fixes: 1ababeba4a ("ipv6: implement dataplane support for rthdr type 4 (Segment Routing Header)")
Fixes: bf355b8d2c ("ipv6: sr: add core files for SR HMAC support")
Signed-off-by: Minhong He <heminhong@kylinos.cn>
Reviewed-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Link: https://patch.msgid.link/20260316073301.106643-1-heminhong@kylinos.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Allow the firmware and enable GPIOs to sleep.
This fixes a `WARN_ON' and allows the driver to operate GPIOs which are
connected to I2C GPIO expanders.
-- >8 --
kernel: WARNING: CPU: 3 PID: 2636 at drivers/gpio/gpiolib.c:3880 gpiod_set_value+0x88/0x98
-- >8 --
Fixes: 43201767b4 ("NFC: nxp-nci: Convert to use GPIO descriptor")
Cc: stable@vger.kernel.org
Signed-off-by: Ian Ray <ian.ray@gehealthcare.com>
Link: https://patch.msgid.link/20260317085337.146545-1-ian.ray@gehealthcare.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If hardware doesn't support RX Flow Filters, rx_fs_lock spinlock is not
initialized leading to the following assertion splat triggerable via
set_rxnfc callback.
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 PID: 949 Comm: syz.0.6 Not tainted 6.1.164+ #113
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x8d/0xba lib/dump_stack.c:106
assign_lock_key kernel/locking/lockdep.c:974 [inline]
register_lock_class+0x141b/0x17f0 kernel/locking/lockdep.c:1287
__lock_acquire+0x74f/0x6c40 kernel/locking/lockdep.c:4928
lock_acquire kernel/locking/lockdep.c:5662 [inline]
lock_acquire+0x190/0x4b0 kernel/locking/lockdep.c:5627
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x33/0x50 kernel/locking/spinlock.c:162
gem_del_flow_filter drivers/net/ethernet/cadence/macb_main.c:3562 [inline]
gem_set_rxnfc+0x533/0xac0 drivers/net/ethernet/cadence/macb_main.c:3667
ethtool_set_rxnfc+0x18c/0x280 net/ethtool/ioctl.c:961
__dev_ethtool net/ethtool/ioctl.c:2956 [inline]
dev_ethtool+0x229c/0x6290 net/ethtool/ioctl.c:3095
dev_ioctl+0x637/0x1070 net/core/dev_ioctl.c:510
sock_do_ioctl+0x20d/0x2c0 net/socket.c:1215
sock_ioctl+0x577/0x6d0 net/socket.c:1320
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x18c/0x210 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
A more straightforward solution would be to always initialize rx_fs_lock,
just like rx_fs_list. However, in this case the driver set_rxnfc callback
would return with a rather confusing error code, e.g. -EINVAL. So deny
set_rxnfc attempts directly if the RX filtering feature is not supported
by hardware.
Fixes: ae8223de3d ("net: macb: Added support for RX filtering")
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Link: https://patch.msgid.link/20260316103826.74506-2-pchelkin@ispras.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
nsim_do_psp() takes an extra reference to the PSP skb extension so the
extension survives __dev_forward_skb(). That forward path scrubs the skb
and drops attached skb extensions before nsim_psp_handle_ext() can
reattach the PSP metadata.
If __dev_forward_skb() fails in nsim_forward_skb(), the function returns
before nsim_psp_handle_ext() can attach that extension to the skb, leaving
the extra reference leaked.
Drop the saved PSP extension reference before returning from the
forward-failure path. Guard the put because plain or non-decapsulated
traffic can also fail forwarding without ever taking the extra PSP
reference.
Fixes: f857478d62 ("netdevsim: a basic test PSP implementation")
Signed-off-by: Wesley Atwell <atwellwea@gmail.com>
Reviewed-by: Daniel Zahka <daniel.zahka@gmail.com>
Link: https://patch.msgid.link/20260317061431.1482716-1-atwellwea@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Disable the "padlock" SHA-1 and SHA-256 driver on Zhaoxin
processors, since it does not compute hash values correctly.
- Make a generated file be removed by 'make clean'.
- Fix excessive stack usage in some of the arm64 AES code.
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Merge tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library fixes from Eric Biggers:
- Disable the "padlock" SHA-1 and SHA-256 driver on Zhaoxin
processors, since it does not compute hash values correctly
- Make a generated file be removed by 'make clean'
- Fix excessive stack usage in some of the arm64 AES code
* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
lib/crypto: powerpc: Add powerpc/aesp8-ppc.S to clean-files
crypto: padlock-sha - Disable for Zhaoxin processor
crypto: arm64/aes-neonbs - Move key expansion off the stack
Issues that need expedient stable backports:
- Fix cache_request leak in cache_release()
- Fix heap overflow in the NFSv4.0 LOCK replay cache
- Hold net reference for the lifetime of /proc/fs/nfs/exports fd
- Defer sub-object cleanup in export "put" callbacks
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Merge tag 'nfsd-7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- Fix cache_request leak in cache_release()
- Fix heap overflow in the NFSv4.0 LOCK replay cache
- Hold net reference for the lifetime of /proc/fs/nfs/exports fd
- Defer sub-object cleanup in export "put" callbacks
* tag 'nfsd-7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
nfsd: fix heap overflow in NFSv4.0 LOCK replay cache
sunrpc: fix cache_request leak in cache_release
NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd
NFSD: Defer sub-object cleanup in export put callbacks
The current error handling has two issues:
First, pin_user_pages_fast() can return a short pin count (less than
requested but greater than zero) when it cannot pin all requested pages.
This is treated as success, leading to partially pinned regions being
used, which causes memory corruption.
Second, when an error occurs mid-loop, already pinned pages from the
current batch are not properly accounted for before calling
mshv_region_invalidate_pages(), causing a page reference leak.
Treat short pins as errors and fix partial batch accounting before
cleanup.
Signed-off-by: Stanislav Kinsburskii <skinsburskii@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
The firmware drivers for ARM SCMI, FF-A and the Tee subsystem, as well
as the reset controller and cache controller subsystem all see small
bugfixes for reference ounting errors, ABI correctness, and NULL pointer
dereferences.
Similarly, there are multiple reference counting fixes in drivers/soc/
for vendor specific drivers (rockchips, microchip), while the freescale
drivers get a fix for a race condition and error handling.
The devicetree fixes for Rockchips and NXP got held up, so for the moment
there is only Renesas fixing problesm with SD card initialization, a
boot hang on one board and incorrect descriptions for interrupts and
clock registers on some SoCs. The Microchip polarfire gets a dts fix
for a boot time warning.
A defconfig fix avoids a warning about a conflicting assignment.
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Merge tag 'soc-fixes-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"The firmware drivers for ARM SCMI, FF-A and the Tee subsystem, as
well as the reset controller and cache controller subsystem all see
small bugfixes for reference ounting errors, ABI correctness, and
NULL pointer dereferences.
Similarly, there are multiple reference counting fixes in drivers/soc/
for vendor specific drivers (rockchips, microchip), while the
freescale drivers get a fix for a race condition and error handling.
The devicetree fixes for Rockchips and NXP got held up, so for
the moment there is only Renesas fixing problesm with SD card
initialization, a boot hang on one board and incorrect descriptions
for interrupts and clock registers on some SoCs. The Microchip
polarfire gets a dts fix for a boot time warning.
A defconfig fix avoids a warning about a conflicting assignment"
* tag 'soc-fixes-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (21 commits)
ARM: multi_v7_defconfig: Drop duplicate CONFIG_TI_PRUSS=m
firmware: arm_scmi: Spelling s/mulit/multi/, s/currenly/currently/
firmware: arm_scmi: Fix NULL dereference on notify error path
firmware: arm_scpi: Fix device_node reference leak in probe path
firmware: arm_ffa: Remove vm_id argument in ffa_rxtx_unmap()
arm64: dts: renesas: r8a78000: Fix out-of-range SPI interrupt numbers
arm64: dts: renesas: rzg3s-smarc-som: Set bypass for Versa3 PLL2
arm64: dts: renesas: r9a09g087: Fix CPG register region sizes
arm64: dts: renesas: r9a09g077: Fix CPG register region sizes
arm64: dts: renesas: r9a09g057: Remove wdt{0,2,3} nodes
arm64: dts: renesas: rzv2-evk-cn15-sd: Add ramp delay for SD0 regulator
arm64: dts: renesas: rzt2h-n2h-evk: Add ramp delay for SD0 card regulator
tee: shm: Remove refcounting of kernel pages
reset: rzg2l-usbphy-ctrl: Check pwrrdy is valid before using it
soc: fsl: cpm1: qmc: Fix error check for devm_ioremap_resource() in qmc_qe_init_resources()
soc: fsl: qbman: fix race condition in qman_destroy_fq
soc: rockchip: grf: Add missing of_node_put() when returning
cache: ax45mp: Fix device node reference leak in ax45mp_cache_init()
cache: starfive: fix device node leak in starlink_cache_init()
riscv: dts: microchip: add can resets to mpfs
...
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Merge tag 'loongarch-fixes-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
- only use SC.Q when supported by the assembler to fix a build failure
- fix calling smp_processor_id() in preemptible code
- make a BPF helper arch_protect_bpf_trampoline() return 0 to fix a
kernel memory access failure
- fix a typo issue in kvm_vm_init_features()
* tag 'loongarch-fixes-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: KVM: Fix typo issue in kvm_vm_init_features()
LoongArch: BPF: Make arch_protect_bpf_trampoline() return 0
LoongArch: No need to flush icache if text copy failed
LoongArch: Check return values for set_memory_{rw,rox}
LoongArch: Give more information if kmem access failed
LoongArch: Fix calling smp_processor_id() in preemptible code
LoongArch: Only use SC.Q when supported by the assembler
Few fixes to:
1. Address a NULL dereference in the SCMI notify error path by ensurin
__scmi_event_handler_get_ops() consistently returns an ERR_PTR on
failure, as expected by callers.
2. Fix a device_node reference leak in the SCPI probe path by introducing
scope-based cleanup for acquired DT nodes.
3. Correct minor spelling errors.
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Merge tag 'scmi-fixes-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes
Arm SCMI fixes for v7.0
Few fixes to:
1. Address a NULL dereference in the SCMI notify error path by ensurin
__scmi_event_handler_get_ops() consistently returns an ERR_PTR on
failure, as expected by callers.
2. Fix a device_node reference leak in the SCPI probe path by introducing
scope-based cleanup for acquired DT nodes.
3. Correct minor spelling errors.
* tag 'scmi-fixes-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: Spelling s/mulit/multi/, s/currenly/currently/
firmware: arm_scmi: Fix NULL dereference on notify error path
firmware: arm_scpi: Fix device_node reference leak in probe path
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fix removing the vm_id argument from ffa_rxtx_unmap(), as the FF-A
specification mandates this field be zero in all contexts except a
non-secure physical FF-A instance, where the ID is inherently 0.
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Merge tag 'ffa-fix-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes
Arm FF-A fix for v7.0
Fix removing the vm_id argument from ffa_rxtx_unmap(), as the FF-A
specification mandates this field be zero in all contexts except a
non-secure physical FF-A instance, where the ID is inherently 0.
* tag 'ffa-fix-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_ffa: Remove vm_id argument in ffa_rxtx_unmap()
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
MFD child devices sharing parent's ACPI Companion fails to probe as
acpi_companion_match() returns incompatible ACPI Companion handle for
binding with the check for pnp.type.backlight added recently. Remove this
pnp.type.backlight check in acpi_companion_match() to fix the automatic
modprobe issue.
Fixes: 7a7a7ed5f8bdb ("ACPI: scan: Register platform devices for backlight device objects")
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Link: https://patch.msgid.link/20260318034842.1216536-1-pratap.nirujogi@amd.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
After commi f132e089fe ("ACPI: processor: Fix NULL-pointer dereference
in acpi_processor_errata_piix4()"), device pointers may be dereferenced
after dropping references to the device objects pointed to by them,
which may cause a use-after-free to occur.
Moreover, debug messages about enabling the errata may be printed
if the errata flags corresponding to them are unset.
Address all of these issues by moving message printing to the points
in the code where the errata flags are set.
Fixes: f132e089fe ("ACPI: processor: Fix NULL-pointer dereference in acpi_processor_errata_piix4()")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Closes: https://lore.kernel.org/linux-acpi/938e2206-def5-4b7a-9b2c-d1fd37681d8a@roeck-us.net/
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/5975693.DvuYhMxLoT@rafael.j.wysocki
ieee80211_tx_prepare_skb() has three error paths, but only two of them
free the skb. The first error path (ieee80211_tx_prepare() returning
TX_DROP) does not free it, while invoke_tx_handlers() failure and the
fragmentation check both do.
Add kfree_skb() to the first error path so all three are consistent,
and remove the now-redundant frees in callers (ath9k, mt76,
mac80211_hwsim) to avoid double-free.
Document the skb ownership guarantee in the function's kdoc.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/20260314065455.2462900-1-nbd@nbd.name
Fixes: 06be6b149f ("mac80211: add ieee80211_tx_prepare_skb() helper function")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
