Pull bpf fixes from Alexei Starovoitov:
- Fix alignment of arm64 JIT buffer to prevent atomic tearing (Fuad
Tabba)
- Fix invariant violation for single value tnums in the verifier
(Harishankar Vishwanathan, Paul Chaignon)
- Fix a bunch of issues found by ASAN in selftests/bpf (Ihor Solodrai)
- Fix race in devmpa and cpumap on PREEMPT_RT (Jiayuan Chen)
- Fix show_fdinfo of kprobe_multi when cookies are not present (Jiri
Olsa)
- Fix race in freeing special fields in BPF maps to prevent memory
leaks (Kumar Kartikeya Dwivedi)
- Fix OOB read in dmabuf_collector (T.J. Mercier)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: (36 commits)
selftests/bpf: Avoid simplification of crafted bounds test
selftests/bpf: Test refinement of single-value tnum
bpf: Improve bounds when tnum has a single possible value
bpf: Introduce tnum_step to step through tnum's members
bpf: Fix race in devmap on PREEMPT_RT
bpf: Fix race in cpumap on PREEMPT_RT
selftests/bpf: Add tests for special fields races
bpf: Retire rcu_trace_implies_rcu_gp() from local storage
bpf: Delay freeing fields in local storage
bpf: Lose const-ness of map in map_check_btf()
bpf: Register dtor for freeing special fields
selftests/bpf: Fix OOB read in dmabuf_collector
selftests/bpf: Fix a memory leak in xdp_flowtable test
bpf: Fix stack-out-of-bounds write in devmap
bpf: Fix kprobe_multi cookies access in show_fdinfo callback
bpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearing
selftests/bpf: Don't override SIGSEGV handler with ASAN
selftests/bpf: Check BPFTOOL env var in detect_bpftool_path()
selftests/bpf: Fix out-of-bounds array access bugs reported by ASAN
selftests/bpf: Fix array bounds warning in jit_disasm_helpers
...
The reg_bounds_crafted tests validate the verifier's range analysis
logic. They focus on the actual ranges and thus ignore the tnum. As a
consequence, they carry the assumption that the tested cases can be
reproduced in userspace without using the tnum information.
Unfortunately, the previous change the refinement logic breaks that
assumption for one test case:
(u64)2147483648 (u32)<op> [4294967294; 0x100000000]
The tested bytecode is shown below. Without our previous improvement, on
the false branch of the condition, R7 is only known to have u64 range
[0xfffffffe; 0x100000000]. With our improvement, and using the tnum
information, we can deduce that R7 equals 0x100000000.
19: (bc) w0 = w6 ; R6=0x80000000
20: (bc) w0 = w7 ; R7=scalar(smin=umin=0xfffffffe,smax=umax=0x100000000,smin32=-2,smax32=0,var_off=(0x0; 0x1ffffffff))
21: (be) if w6 <= w7 goto pc+3 ; R6=0x80000000 R7=0x100000000
R7's tnum is (0; 0x1ffffffff). On the false branch, regs_refine_cond_op
refines R7's u32 range to [0; 0x7fffffff]. Then, __reg32_deduce_bounds
refines the s32 range to 0 using u32 and finally also sets u32=0.
From this, __reg_bound_offset improves the tnum to (0; 0x100000000).
Finally, our previous patch uses this new tnum to deduce that it only
intersect with u64=[0xfffffffe; 0x100000000] in a single value:
0x100000000.
Because the verifier uses the tnum to reach this constant value, the
selftest is unable to reproduce it by only simulating ranges. The
solution implemented in this patch is to change the test case such that
there is more than one overlap value between u64 and the tnum. The max.
u64 value is thus changed from 0x100000000 to 0x300000000.
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Link: https://lore.kernel.org/r/50641c6a7ef39520595dcafa605692427c1006ec.1772225741.git.paul.chaignon@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This patch introduces selftests to cover the new bounds refinement
logic introduced in the previous patch. Without the previous patch,
the first two tests fail because of the invariant violation they
trigger. The last test fails because the R10 access is not detected as
dead code. In addition, all three tests fail because of R0 having a
non-constant value in the verifier logs.
In addition, the last two cases are covering the negative cases: when we
shouldn't refine the bounds because the u64 and tnum overlap in at least
two values.
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Link: https://lore.kernel.org/r/90d880c8cf587b9f7dc715d8961cd1b8111d01a8.1772225741.git.paul.chaignon@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add a couple of tests to ensure that the refcount drops to zero when we
exercise the race where creation of a special field succeeds the logical
bpf_obj_free_fields done when deleting an element. Prior to previous
changes, the fields would be freed eagerly and repopulate and end up
leaking, causing the reference to not drop down correctly. Running this
test on a kernel without fixes will cause a hang in delete_module, since
the module reference stays active due to the leaked kptr not dropping
it. After the fixes tests succeed as expected.
Reviewed-by: Amery Hung <ameryhung@gmail.com>
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20260227224806.646888-6-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Pull arm64 fixes from Will Deacon:
"The diffstat is dominated by changes to our TLB invalidation errata
handling and the introduction of a new GCS selftest to catch one of
the issues that is fixed here relating to PROT_NONE mappings.
- Fix cpufreq warning due to attempting a cross-call with interrupts
masked when reading local AMU counters
- Fix DEBUG_PREEMPT warning from the delay loop when it tries to
access per-cpu errata workaround state for the virtual counter
- Re-jig and optimise our TLB invalidation errata workarounds in
preparation for more hardware brokenness
- Fix GCS mappings to interact properly with PROT_NONE and to avoid
corrupting the pte on CPUs with FEAT_LPA2
- Fix ioremap_prot() to extract only the memory attributes from the
user pte and ignore all the other 'prot' bits"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: topology: Fix false warning in counters_read_on_cpu() for same-CPU reads
arm64: Fix sampling the "stable" virtual counter in preemptible section
arm64: tlb: Optimize ARM64_WORKAROUND_REPEAT_TLBI
arm64: tlb: Allow XZR argument to TLBI ops
kselftest: arm64: Check access to GCS after mprotect(PROT_NONE)
arm64: gcs: Honour mprotect(PROT_NONE) on shadow stack mappings
arm64: gcs: Do not set PTE_SHARED on GCS mappings if FEAT_LPA2 is enabled
arm64: io: Extract user memory type in ioremap_prot()
arm64: io: Rename ioremap_prot() to __ioremap_prot()
Dmabuf name allocations can be less than DMA_BUF_NAME_LEN characters,
but bpf_probe_read_kernel always tries to read exactly that many bytes.
If a name is less than DMA_BUF_NAME_LEN characters,
bpf_probe_read_kernel will read past the end. bpf_probe_read_kernel_str
stops at the first NUL terminator so use it instead, like
iter_dmabuf_for_each already does.
Fixes: ae5d2c59ec ("selftests/bpf: Add test for dmabuf_iter")
Reported-by: Jerome Lee <jaewookl@quicinc.com>
Signed-off-by: T.J. Mercier <tjmercier@google.com>
Link: https://lore.kernel.org/r/20260225003349.113746-1-tjmercier@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Pull networking fixes from Paolo Abeni:
"Including fixes from IPsec, Bluetooth and netfilter
Current release - regressions:
- wifi: fix dev_alloc_name() return value check
- rds: fix recursive lock in rds_tcp_conn_slots_available
Current release - new code bugs:
- vsock: lock down child_ns_mode as write-once
Previous releases - regressions:
- core:
- do not pass flow_id to set_rps_cpu()
- consume xmit errors of GSO frames
- netconsole: avoid OOB reads, msg is not nul-terminated
- netfilter: h323: fix OOB read in decode_choice()
- tcp: re-enable acceptance of FIN packets when RWIN is 0
- udplite: fix null-ptr-deref in __udp_enqueue_schedule_skb().
- wifi: brcmfmac: fix potential kernel oops when probe fails
- phy: register phy led_triggers during probe to avoid AB-BA deadlock
- eth:
- bnxt_en: fix deleting of Ntuple filters
- wan: farsync: fix use-after-free bugs caused by unfinished tasklets
- xscale: check for PTP support properly
Previous releases - always broken:
- tcp: fix potential race in tcp_v6_syn_recv_sock()
- kcm: fix zero-frag skb in frag_list on partial sendmsg error
- xfrm:
- fix race condition in espintcp_close()
- always flush state and policy upon NETDEV_UNREGISTER event
- bluetooth:
- purge error queues in socket destructors
- fix response to L2CAP_ECRED_CONN_REQ
- eth:
- mlx5:
- fix circular locking dependency in dump
- fix "scheduling while atomic" in IPsec MAC address query
- gve: fix incorrect buffer cleanup for QPL
- team: avoid NETDEV_CHANGEMTU event when unregistering slave
- usb: validate USB endpoints"
* tag 'net-7.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (72 commits)
netfilter: nf_conntrack_h323: fix OOB read in decode_choice()
dpaa2-switch: validate num_ifs to prevent out-of-bounds write
net: consume xmit errors of GSO frames
vsock: document write-once behavior of the child_ns_mode sysctl
vsock: lock down child_ns_mode as write-once
selftests/vsock: change tests to respect write-once child ns mode
net/mlx5e: Fix "scheduling while atomic" in IPsec MAC address query
net/mlx5: Fix missing devlink lock in SRIOV enable error path
net/mlx5: E-switch, Clear legacy flag when moving to switchdev
net/mlx5: LAG, disable MPESW in lag_disable_change()
net/mlx5: DR, Fix circular locking dependency in dump
selftests: team: Add a reference count leak test
team: avoid NETDEV_CHANGEMTU event when unregistering slave
net: mana: Fix double destroy_workqueue on service rescan PCI path
MAINTAINERS: Update maintainer entry for QUALCOMM ETHQOS ETHERNET DRIVER
dpll: zl3073x: Remove redundant cleanup in devm_dpll_init()
selftests/net: packetdrill: Verify acceptance of FIN packets when RWIN is 0
tcp: re-enable acceptance of FIN packets when RWIN is 0
vsock: Use container_of() to get net namespace in sysctl handlers
net: usb: kaweth: validate USB endpoints
...
The child_ns_mode sysctl parameter becomes write-once in a future patch
in this series, which breaks existing tests. This patch updates the
tests to respect this new policy. No additional tests are added.
Add "global-parent" and "local-parent" namespaces as intermediaries to
spawn namespaces in the given modes. This avoids the need to change
"child_ns_mode" in the init_ns. nsenter must be used because ip netns
unshares the mount namespace so nested "ip netns add" breaks exec calls
from the init ns. Adds nsenter to the deps check.
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260223-vsock-ns-write-once-v3-1-c0cde6959923@meta.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add a test for the issue that was fixed in "team: avoid NETDEV_CHANGEMTU
event when unregistering slave".
The test hangs due to a reference count leak without the fix:
# make -C tools/testing/selftests TARGETS="drivers/net/team" TEST_PROGS=refleak.sh TEST_GEN_PROGS="" run_tests
[...]
TAP version 13
1..1
# timeout set to 45
# selftests: drivers/net/team: refleak.sh
[ 50.681299][ T496] unregister_netdevice: waiting for dummy1 to become free. Usage count = 3
[ 71.185325][ T496] unregister_netdevice: waiting for dummy1 to become free. Usage count = 3
And passes with the fix:
# make -C tools/testing/selftests TARGETS="drivers/net/team" TEST_PROGS=refleak.sh TEST_GEN_PROGS="" run_tests
[...]
TAP version 13
1..1
# timeout set to 45
# selftests: drivers/net/team: refleak.sh
ok 1 selftests: drivers/net/team: refleak.sh
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260224125709.317574-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The bpftool_maps_access and bpftool_metadata tests may fail on BPF CI
with "command not found", depending on a workflow.
This happens because detect_bpftool_path() only checks two hardcoded
relative paths:
- ./tools/sbin/bpftool
- ../tools/sbin/bpftool
Add support for a BPFTOOL environment variable that allows specifying
the exact path to the bpftool binary.
Acked-by: Mykyta Yatsenko <yatsenko@meta.com>
Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Link: https://lore.kernel.org/r/20260223191118.655185-2-ihor.solodrai@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
- kmem_cache_iter: remove unnecessary debug output
- lwt_seg6local: change the type of foobar to char[]
- the sizeof(foobar) returned the pointer size and not a string
length as intended
- verifier_log: increase prog_name buffer size in verif_log_subtest()
- compiler has a conservative estimate of fixed_log_sz value, making
ASAN complain on snprint() call
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Link: https://lore.kernel.org/r/20260223191118.655185-1-ihor.solodrai@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
ASAN reported a memory leak in bpf_get_ksyms(): it allocates a struct
ksyms internally and never frees it.
Move struct ksyms to trace_helpers.h and return it from the
bpf_get_ksyms(), giving ownership to the caller. Add filtered_syms and
filtered_cnt fields to the ksyms to hold the filtered array of
symbols, previously returned by bpf_get_ksyms().
Fixup the call sites: kprobe_multi_test and bench_trigger.
Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260223190736.649171-10-ihor.solodrai@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add a denylist file for tests that should be skipped when built with
userspace ASAN:
$ make ... SAN_CFLAGS="-fsanitize=address -fno-omit-frame-pointer"
Skip the following tests:
- *arena*: userspace ASAN does not understand BPF arena maps and gets
confused particularly when map_extra is non-zero
- non-zero map_extra leads to mmap with MAP_FIXED, and ASAN treats
this as an unknown memory region
- task_local_data: ASAN complains about "incorrect" aligned_alloc()
usage, but it's intentional in the test
- uprobe_multi_test: very slow with ASAN enabled
Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Link: https://lore.kernel.org/r/20260223190736.649171-9-ihor.solodrai@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
EXTRA_* and SAN_* build flags were not correctly propagated to bpftool
and resolve_btids when building selftests/bpf. This led to various
build errors on attempt to build with SAN_CFLAGS="-fsanitize=address",
for example.
Fix the makefiles to address this:
- Pass SAN_CFLAGS/SAN_LDFLAGS to bpftool and resolve_btfids build
- Propagate EXTRA_LDFLAGS to resolve_btfids link command
- Use pkg-config to detect zlib and zstd for resolve_btfids, similar
libelf handling
Also check for ASAN flag in selftests/bpf/Makefile for convenience.
Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Link: https://lore.kernel.org/r/20260223190736.649171-7-ihor.solodrai@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Pull rust fixes from Miguel Ojeda:
"Toolchain and infrastructure:
- Pass '-Zunstable-options' flag required by the future Rust 1.95.0
- Fix 'objtool' warning for Rust 1.84.0
'kernel' crate:
- 'irq' module: add missing bound detected by the future Rust 1.95.0
- 'list' module: add missing 'unsafe' blocks and placeholder safety
comments to macros (an issue for future callers within the crate)
'pin-init' crate:
- Clean Clippy warning that changed behavior in the future Rust
1.95.0"
* tag 'rust-fixes-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
rust: list: Add unsafe blocks for container_of and safety comments
rust: pin-init: replace clippy `expect` with `allow`
rust: irq: add `'static` bounds to irq callbacks
objtool/rust: add one more `noreturn` Rust function
rust: kbuild: pass `-Zunstable-options` for Rust 1.95.0
Pull perf tools updates from Arnaldo Carvalho de Melo:
- Introduce 'perf sched stats' tool with record/report/diff workflows
using schedstat counters
- Add a faster libdw based addr2line implementation and allow selecting
it or its alternatives via 'perf config addr2line.style='
- Data-type profiling fixes and improvements including the ability to
select fields using 'perf report''s -F/-fields, e.g.:
'perf report --fields overhead,type'
- Add 'perf test' regression tests for Data-type profiling with C and
Rust workloads
- Fix srcline printing with inlines in callchains, make sure this has
coverage in 'perf test'
- Fix printing of leaf IP in LBR callchains
- Fix display of metrics without sufficient permission in 'perf stat'
- Print all machines in 'perf kvm report -vvv', not just the host
- Switch from SHA-1 to BLAKE2s for build ID generation, remove SHA-1
code
- Fix 'perf report's histogram entry collapsing with '-F' option
- Use system's cacheline size instead of a hardcoded value in 'perf
report'
- Allow filtering conversion by time range in 'perf data'
- Cover conversion to CTF using 'perf data' in 'perf test'
- Address newer glibc const-correctness (-Werror=discarded-qualifiers)
issues
- Fixes and improvements for ARM's CoreSight support, simplify ARM SPE
event config in 'perf mem', update docs for 'perf c2c' including the
ARM events it can be used with
- Build support for generating metrics from arch specific python
script, add extra AMD, Intel, ARM64 metrics using it
- Add AMD Zen 6 events and metrics
- Add JSON file with OpenHW Risc-V CVA6 hardware counters
- Add 'perf kvm' stats live testing
- Add more 'perf stat' tests to 'perf test'
- Fix segfault in `perf lock contention -b/--use-bpf`
- Fix various 'perf test' cases for s390
- Build system cleanups, bump minimum shellcheck version to 0.7.2
- Support building the capstone based annotation routines as a plugin
- Allow passing extra Clang flags via EXTRA_BPF_FLAGS
* tag 'perf-tools-for-v7.0-1-2026-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (255 commits)
perf test script: Add python script testing support
perf test script: Add perl script testing support
perf script: Allow the generated script to be a path
perf test: perf data --to-ctf testing
perf test: Test pipe mode with data conversion --to-json
perf json: Pipe mode --to-ctf support
perf json: Pipe mode --to-json support
perf check: Add libbabeltrace to the listed features
perf build: Allow passing extra Clang flags via EXTRA_BPF_FLAGS
perf test data_type_profiling.sh: Skip just the Rust tests if code_with_type workload is missing
tools build: Fix feature test for rust compiler
perf libunwind: Fix calls to thread__e_machine()
perf stat: Add no-affinity flag
perf evlist: Reduce affinity use and move into iterator, fix no affinity
perf evlist: Missing TPEBS close in evlist__close()
perf evlist: Special map propagation for tool events that read on 1 CPU
perf stat-shadow: In prepare_metric fix guard on reading NULL perf_stat_evsel
Revert "perf tool_pmu: More accurately set the cpus for tool events"
tools build: Emit dependencies file for test-rust.bin
tools build: Make test-rust.bin be removed by the 'clean' target
...
Pull sched_ext fixes from Tejun Heo:
- Various bug fixes for the example schedulers and selftests
* tag 'sched_ext-for-7.0-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
tools/sched_ext: fix getopt not re-parsed on restart
tools/sched_ext: scx_userland: fix data races on shared counters
tools/sched_ext: scx_pair: fix stride == 0 crash on single-CPU systems
tools/sched_ext: scx_central: fix CPU_SET and skeleton leak on early exit
tools/sched_ext: scx_userland: fix stale data on restart
tools/sched_ext: scx_flatcg: fix potential stack overflow from VLA in fcg_read_stats
selftests/sched_ext: Fix rt_stall flaky failure
tools/sched_ext: scx_userland: fix restart and stats thread lifecycle bugs
tools/sched_ext: scx_central: fix sched_setaffinity() call with the set size
tools/sched_ext: scx_flatcg: zero-initialize stats counter array
After goto restart, optind retains its advanced position from the
previous getopt loop, causing getopt() to immediately return -1.
This silently drops all command-line options on the restarted skeleton.
Reset optind to 1 at the restart label so options are re-parsed.
Affected schedulers: scx_simple, scx_central, scx_flatcg, scx_pair,
scx_sdt, scx_cpu0.
Signed-off-by: David Carlier <devnexen@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The stats thread reads nr_vruntime_enqueues, nr_vruntime_dispatches,
nr_vruntime_failed, and nr_curr_enqueued concurrently with the main
thread writing them, with no synchronization.
Use __atomic builtins with relaxed ordering for all accesses to these
counters to eliminate the data races.
Only display accuracy is affected, not scheduling correctness.
Signed-off-by: David Carlier <devnexen@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add a test to verify that RSS contexts persist across interface
down/up along with their associated Ntuple filters. Another test
that creates contexts/rules keeping interface down and test their
persistence is also added.
Tested on bnxt_en:
TAP version 13
1..1
# timeout set to 0
# selftests: drivers/net/hw: rss_ctx.py
# TAP version 13
# 1..2
# ok 1 rss_ctx.test_rss_context_persist_create_and_ifdown
# ok 2 rss_ctx.test_rss_context_persist_ifdown_and_create # SKIP Create context not supported with interface down
# # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:1 error:0
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20260219185313.2682148-4-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pull networking fixes from Jakub Kicinski:
"Including fixes from Netfilter.
Current release - new code bugs:
- net: fix backlog_unlock_irq_restore() vs CONFIG_PREEMPT_RT
- eth: mlx5e: XSK, Fix unintended ICOSQ change
- phy_port: correctly recompute the port's linkmodes
- vsock: prevent child netns mode switch from local to global
- couple of kconfig fixes for new symbols
Previous releases - regressions:
- nfc: nci: fix false-positive parameter validation for packet data
- net: do not delay zero-copy skbs in skb_attempt_defer_free()
Previous releases - always broken:
- mctp: ensure our nlmsg responses to user space are zero-initialised
- ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data()
- fixes for ICMP rate limiting
Misc:
- intel: fix PCI device ID conflict between i40e and ipw2200"
* tag 'net-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (85 commits)
net: nfc: nci: Fix parameter validation for packet data
net/mlx5e: Use unsigned for mlx5e_get_max_num_channels
net/mlx5e: Fix deadlocks between devlink and netdev instance locks
net/mlx5e: MACsec, add ASO poll loop in macsec_aso_set_arm_event
net/mlx5: Fix misidentification of write combining CQE during poll loop
net/mlx5e: Fix misidentification of ASO CQE during poll loop
net/mlx5: Fix multiport device check over light SFs
bonding: alb: fix UAF in rlb_arp_recv during bond up/down
bnge: fix reserving resources from FW
eth: fbnic: Advertise supported XDP features.
rds: tcp: fix uninit-value in __inet_bind
net/rds: Fix NULL pointer dereference in rds_tcp_accept_one
octeontx2-af: Fix default entries mcam entry action
net/mlx5e: XSK, Fix unintended ICOSQ change
ipv6: icmp: icmpv6_xrlim_allow() optimization if net.ipv6.icmp.ratelimit is zero
ipv4: icmp: icmpv4_xrlim_allow() optimization if net.ipv4.icmp_ratelimit is zero
ipv6: icmp: remove obsolete code in icmpv6_xrlim_allow()
inet: move icmp_global_{credit,stamp} to a separate cache line
icmp: prevent possible overflow in icmp_global_allow()
selftests/net: packetdrill: add ipv4-mapped-ipv6 tests
...
Pull bpf fixes from Alexei Starovoitov:
- Fix invalid write loop logic in libbpf's bpf_linker__add_buf() (Amery
Hung)
- Fix a potential use-after-free of BTF object (Anton Protopopov)
- Add feature detection to libbpf and avoid moving arena global
variables on older kernels (Emil Tsalapatis)
- Remove extern declaration of bpf_stream_vprintk() from libbpf headers
(Ihor Solodrai)
- Fix truncated netlink dumps in bpftool (Jakub Kicinski)
- Fix map_kptr grace period wait in bpf selftests (Kumar Kartikeya
Dwivedi)
- Remove hexdump dependency while building bpf selftests (Matthieu
Baerts)
- Complete fsession support in BPF trampolines on riscv (Menglong Dong)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: Remove hexdump dependency
libbpf: Remove extern declaration of bpf_stream_vprintk()
selftests/bpf: Use vmlinux.h in test_xdp_meta
bpftool: Fix truncated netlink dumps
libbpf: Delay feature gate check until object prepare time
libbpf: Do not use PROG_TYPE_TRACEPOINT program for feature gating
bpf: Add a map/btf from a fd array more consistently
selftests/bpf: Fix map_kptr grace period wait
selftests/bpf: enable fsession_test on riscv64
selftests/bpf: Adjust selftest due to function rename
bpf, riscv: add fsession support for trampolines
bpf: Fix a potential use-after-free of BTF object
bpf, riscv: introduce emit_store_stack_imm64() for trampoline
libbpf: Fix invalid write loop logic in bpf_linker__add_buf()
libbpf: Add gating for arena globals relocation feature
Pull more non-MM updates from Andrew Morton:
- "two fixes in kho_populate()" fixes a couple of not-major issues in
the kexec handover code (Ran Xiaokai)
- misc singletons
* tag 'mm-nonmm-stable-2026-02-18-19-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
lib/group_cpus: handle const qualifier from clusters allocation type
kho: remove unnecessary WARN_ON(err) in kho_populate()
kho: fix missing early_memunmap() call in kho_populate()
scripts/gdb: implement x86_page_ops in mm.py
objpool: fix the overestimation of object pooling metadata size
selftests/memfd: use IPC semaphore instead of SIGSTOP/SIGCONT
delayacct: fix build regression on accounting tool
Pull more MM updates from Andrew Morton:
- "mm/vmscan: fix demotion targets checks in reclaim/demotion" fixes a
couple of issues in the demotion code - pages were failed demotion
and were finding themselves demoted into disallowed nodes (Bing Jiao)
- "Remove XA_ZERO from error recovery of dup_mmap()" fixes a rare
mapledtree race and performs a number of cleanups (Liam Howlett)
- "mm: add bitmap VMA flag helpers and convert all mmap_prepare to use
them" implements a lot of cleanups following on from the conversion
of the VMA flags into a bitmap (Lorenzo Stoakes)
- "support batch checking of references and unmapping for large folios"
implements batching to greatly improve the performance of reclaiming
clean file-backed large folios (Baolin Wang)
- "selftests/mm: add memory failure selftests" does as claimed (Miaohe
Lin)
* tag 'mm-stable-2026-02-18-19-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (36 commits)
mm/page_alloc: clear page->private in free_pages_prepare()
selftests/mm: add memory failure dirty pagecache test
selftests/mm: add memory failure clean pagecache test
selftests/mm: add memory failure anonymous page test
mm: rmap: support batched unmapping for file large folios
arm64: mm: implement the architecture-specific clear_flush_young_ptes()
arm64: mm: support batch clearing of the young flag for large folios
arm64: mm: factor out the address and ptep alignment into a new helper
mm: rmap: support batched checks of the references for large folios
tools/testing/vma: add VMA userland tests for VMA flag functions
tools/testing/vma: separate out vma_internal.h into logical headers
tools/testing/vma: separate VMA userland tests into separate files
mm: make vm_area_desc utilise vma_flags_t only
mm: update all remaining mmap_prepare users to use vma_flags_t
mm: update shmem_[kernel]_file_*() functions to use vma_flags_t
mm: update secretmem to use VMA flags on mmap_prepare
mm: update hugetlbfs to use VMA flags on mmap_prepare
mm: add basic VMA flag operation helper functions
tools: bitmap: add missing bitmap_[subset(), andnot()]
mm: add mk_vma_flags() bitmap flag macro helper
...
The verification signature header generation requires converting a
binary certificate to a C array. Previously this only worked with xxd,
and a switch to hexdump has been done in commit b640d556a2
("selftests/bpf: Remove xxd util dependency").
hexdump is a more common utility program, yet it might not be installed
by default. When it is not installed, BPF selftests build without
errors, but tests_progs is unusable: it exits with the 255 code and
without any error messages. When manually reproducing the issue, it is
not too hard to find out that the generated verification_cert.h file is
incorrect, but that's time consuming. When digging the BPF selftests
build logs, this line can be seen amongst thousands others, but ignored:
/bin/sh: 2: hexdump: not found
Here, od is used instead of hexdump. od is coming from the coreutils
package, and this new od command produces the same output when using od
from GNU coreutils, uutils, and even busybox. This is more portable, and
it produces a similar results to what was done before with hexdump:
there is an extra comma at the end instead of trailing whitespaces,
but the C code is not impacted.
Fixes: b640d556a2 ("selftests/bpf: Remove xxd util dependency")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Tested-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/r/20260218-bpf-sft-hexdump-od-v2-1-2f9b3ee5ab86@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Pull Kbuild fixes from Nathan Chancellor:
- Ensure tools/objtool is cleaned by 'make clean' and 'make mrproper'
- Fix test program for CONFIG_CC_CAN_LINK to avoid a warning, which is
made fatal by -Werror
- Drop explicit LZMA parallel compression in scripts/make_fit.py
- Several fixes for commit 62089b8048 ("kbuild: rpm-pkg: Generate
debuginfo package manually")
* tag 'kbuild-fixes-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
kbuild: rpm-pkg: Disable automatic requires for manual debuginfo package
kbuild: rpm-pkg: Fix manual debuginfo generation when using .src.rpm
kernel: rpm-pkg: Restore find-debuginfo.sh approach to -debuginfo package
kbuild: rpm-pkg: Restrict manual debug package creation
scripts/make_fit.py: Drop explicit LZMA parallel compression
kbuild: Fix CC_CAN_LINK detection
kbuild: Add objtool to top-level clean target
Pull turbostat fix from Len Brown:
"Fix a recent AMD regression due to errant code cleanup"
* tag 'turbostat-2026.02.14-AMD-RAPL-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
tools/power turbostat: Fix AMD RAPL regression
nr_cpu_ids / 2 produces stride 0 on a single-CPU system, which later
causes SCX_BUG_ON(i == j) to fire. Validate stride after option
parsing to also catch invalid user-supplied values via -S.
Signed-off-by: David Carlier <devnexen@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Use CPU_SET_S() instead of CPU_SET() on the dynamically allocated
cpuset to avoid a potential out-of-bounds write when nr_cpu_ids
exceeds CPU_SETSIZE.
Also destroy the skeleton before returning on invalid central CPU ID
to prevent a resource leak.
Signed-off-by: David Carlier <devnexen@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
