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11 daysselftests/bpf: Fix double thread join in uprobe_multi_testIhor Solodrai
ASAN reported a "joining already joined thread" error. The release_child() may be called multiple times for the same struct child. Fix by resetting child->thread to 0 after pthread_join. Also memset(0) static child variable in test_attach_api(). Acked-by: Mykyta Yatsenko <yatsenko@meta.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-15-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
11 daysselftests/bpf: Fix use-after-free in xdp_metadata testIhor Solodrai
ASAN reported a use-after-free in close_xsk(). The xsk->socket internally references xsk->umem via socket->ctx->umem, so the socket must be deleted before the umem. Fix the order of operations in close_xsk(). Acked-by: Mykyta Yatsenko <yatsenko@meta.com> Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-14-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
11 daysveristat: Fix a memory leak for preset ENUMERATORIhor Solodrai
ASAN detected a memory leak in veristat. The cleanup code handling ENUMERATOR value missed freeing strdup-ed svalue. Fix it. Acked-by: Mykyta Yatsenko <yatsenko@meta.com> Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-13-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
11 daysselftests/bpf: Fix cleanup in check_fd_array_cnt__fd_array_too_big()Ihor Solodrai
The Close() macro uses the passed in expression three times, which leads to repeated execution in case it has side effects. That is, Close(i--) would decrement i three times. ASAN caught a stack-buffer-undeflow error at a point where this was overlooked. Fix it. Acked-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-12-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
11 daysselftests/bpf: Fix memory leaks in testsIhor Solodrai
Fix trivial memory leaks detected by userspace ASAN: - htab_update: free value buffer in test_reenter_update cleanup - test_xsk: inline pkt_stream_replace() in testapp_stats_rx_full() and testapp_stats_fill_empty() - testing_helpers: free buffer allocated by getline() in parse_test_list_file Acked-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-11-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
11 daysselftests/bpf: Refactor bpf_get_ksyms() trace helperIhor Solodrai
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>
11 daysselftests/bpf: Add DENYLIST.asanIhor Solodrai
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>
11 daysresolve_btfids: Fix memory leaks reported by ASANIhor Solodrai
Running resolve_btfids with ASAN reveals memory leaks in btf_id handling. - Change get_id() to use a local buffer - Make btf_id__add() strdup the name internally - Add btf_id__free_all() that frees all nodese of a tree - Call the cleanup function on exit for every tree Acked-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-8-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
11 daysselftests/bpf: Pass through build flags to bpftool and resolve_btfidsIhor Solodrai
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>
11 daysselftests/bpf: Use memcpy() for bounded non-NULL-terminated copiesIhor Solodrai
Replace strncpy() with memcpy() in cases where the source is non-NULL-terminated and the copy length is known. Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-6-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
11 daysselftests/bpf: Use strscpy in bpftool_helpers.cIhor Solodrai
Replace strncpy() calls in bpftool_helpers.c with strscpy(). Pass the destination buffer size to detect_bpftool_path() instead of hardcoding BPFTOOL_PATH_MAX_LEN. Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-5-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
11 daysselftests/bpf: Replace strncpy() with strscpy()Ihor Solodrai
strncpy() does not guarantee NULL-termination and is considered deprecated [1]. Replace strncpy() calls with strscpy(). [1] https://docs.kernel.org/process/deprecated.html#strncpy-on-nul-terminated-strings Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-4-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
11 daysselftests: hid: tests: test_wacom_generic: add tests for display devices and ↵Alex Tran
opaque devices Verify Wacom devices set INPUT_PROP_DIRECT on display devices and INPUT_PROP_POINTER on opaque devices. Verify INPUT_PROP_POINTER is not set on display devices and INPUT_PROP_DIRECT is not set on opaque devices. Moved test_prop_pointer into TestOpaqueTablet. Created a DirectTabletTest mixin class for test_prop_direct that can be inherited by display tablet test classes.Used DirectTabletTest for TestDTH2452Tablet case. Signed-off-by: Alex Tran <alex.t.tran@gmail.com> Tested-by: Erin Skomra <erin.skomra@wacom.com> Reviewed-by: Erin Skomra <erin.skomra@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
12 daysselftests/bpf: Replace strcpy() calls with strscpy()Ihor Solodrai
strcpy() does not perform bounds checking and is considered deprecated [1]. Replace strcpy() calls with strscpy() defined in bpf_util.h. [1] https://docs.kernel.org/process/deprecated.html#strcpy Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-3-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
12 daysselftests/bpf: Add simple strscpy() implementationIhor Solodrai
Replace bpf_strlcpy() in bpf_util.h with a sized_strscpy(), which is a simplified sized_strscpy() from the kernel (lib/string.c [1]). It: * takes a count (destination size) parameter * guarantees NULL-termination * returns the number of characters copied or -E2BIG Re-define strscpy macro similar to in-kernel implementation [2]: allow the count parameter to be optional. Add #ifdef-s to tools/include/linux/args.h, as they may be defined in other system headers (for example, __CONCAT in sys/cdefs.h). Fixup the single existing bpf_strlcpy() call in cgroup_helpers.c [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/lib/string.c?h=v6.19#n113 [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/string.h?h=v6.19#n91 Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-2-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
12 dayscgroup/cpuset: Defer housekeeping_update() calls from CPU hotplug to workqueueWaiman Long
The cpuset_handle_hotplug() may need to invoke housekeeping_update(), for instance, when an isolated partition is invalidated because its last active CPU has been put offline. As we are going to enable dynamic update to the nozh_full housekeeping cpumask (HK_TYPE_KERNEL_NOISE) soon with the help of CPU hotplug, allowing the CPU hotplug path to call into housekeeping_update() directly from update_isolation_cpumasks() will likely cause deadlock. So we have to defer any call to housekeeping_update() after the CPU hotplug operation has finished. This is now done via the workqueue where the update_hk_sched_domains() function will be invoked via the hk_sd_workfn(). An concurrent cpuset control file write may have executed the required update_hk_sched_domains() function before the work function is called. So the work function call may become a no-op when it is invoked. Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
12 dayskselftest/cgroup: Simplify test_cpuset_prs.sh by removing "S+" commandWaiman Long
The "S+" command is used in the test matrix to enable the cpuset controller. However this can be done automatically and we never use the "S-" command to disable cpuset controller. Simplify the test matrix and reduce clutter by removing the command and doing that automatically. There is no functional change to the test cases. Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
12 daysselftests/sched_ext: Remove duplicated unistd.h include in rt_stall.cCheng-Yang Chou
The header <unistd.h> is included twice in rt_stall.c. Remove the redundant inclusion to clean up the code. Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
12 daystools/sched_ext: scx_sdt: Remove unused '-f' optionCheng-Yang Chou
The '-f' option is defined in getopt() but not handled in the switch statement or documented in the help text. Providing '-f' currently triggers the default error path. Remove it to sync the optstring with the actual implementation. Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
12 daystools/sched_ext: scx_central: Remove unused '-p' optionCheng-Yang Chou
The '-p' option is defined in getopt() but not handled in the switch statement or documented in the help text. Providing '-p' currently triggers the default error path. Remove it to sync the optstring with the actual implementation. Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
12 daysselftests/sched_ext: Fix unused-result warning for read()Cheng-Yang Chou
The read() call in run_test() triggers a warn_unused_result compiler warning, which breaks the build under -Werror. Check the return value of read() and exit the child process on failure to satisfy the compiler and handle pipe read errors. Reviewed-by: Andrea Righi <arighi@nvidia.com> Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
12 daysselftests/sched_ext: Abort test loop on signalCheng-Yang Chou
The runner sets exit_req on SIGINT/SIGTERM but ignores it during the main loop. This prevents users from cleanly interrupting a test run. Check exit_req each iteration to safely break out on exit signals. Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com> Acked-by: Andrea Righi <arighi@nvidia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
13 daysMerge tag 'rust-fixes-7.0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux 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
14 daysMerge tag 'perf-tools-for-v7.0-1-2026-02-21' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools 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 ...
14 daysMerge tag 'sched_ext-for-7.0-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext 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
2026-02-20tools/sched_ext: fix getopt not re-parsed on restartDavid Carlier
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>
2026-02-20tools/sched_ext: scx_userland: fix data races on shared countersDavid Carlier
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>
2026-02-20selftests: drv-net: rss_ctx: test RSS contexts persist after ifdown/upPavan Chebbi
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>
2026-02-19Merge tag 'net-7.0-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 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 ...
2026-02-19Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfLinus Torvalds
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
2026-02-18Merge tag 'mm-nonmm-stable-2026-02-18-19-56' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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
2026-02-18Merge tag 'mm-stable-2026-02-18-19-48' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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 ...
2026-02-18selftests/net: packetdrill: add ipv4-mapped-ipv6 testsEric Dumazet
Add ipv4-mapped-ipv6 case to ksft_runner.sh before an upcoming TCP fix in this area. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20260217142924.1853498-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-02-18selftests/bpf: Remove hexdump dependencyMatthieu Baerts (NGI0)
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 b640d556a2b3 ("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: b640d556a2b3 ("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>
2026-02-18Merge tag 'kbuild-fixes-7.0-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux 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 62089b804895 ("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
2026-02-18libbpf: Remove extern declaration of bpf_stream_vprintk()Ihor Solodrai
An issue was reported that building BPF program which includes both vmlinux.h and bpf_helpers.h from libbpf fails due to conflicting declarations of bpf_stream_vprintk(). Remove the extern declaration from bpf_helpers.h to address this. In order to use bpf_stream_printk() macro, BPF programs are expected to either include vmlinux.h of the kernel they are targeting, or add their own extern declaration. Reported-by: Luca Boccassi <luca.boccassi@gmail.com> Closes: https://github.com/libbpf/libbpf/issues/947 Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260218215651.2057673-3-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-02-18selftests/bpf: Use vmlinux.h in test_xdp_metaIhor Solodrai
- Replace linux/* includes with vmlinux.h - Include errno.h - Include bpf_tracing_net.h for TC_ACT_* and ETH_* - Use BPF_STDERR instead of BPF_STREAM_STDERR Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260218215651.2057673-2-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-02-18Merge tag 'turbostat-2026.02.14-AMD-RAPL-fix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 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
2026-02-18tools/sched_ext: scx_pair: fix stride == 0 crash on single-CPU systemsDavid Carlier
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>
2026-02-18tools/sched_ext: scx_central: fix CPU_SET and skeleton leak on early exitDavid Carlier
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>
2026-02-17tools/power turbostat: Fix AMD RAPL regressionLen Brown
turbostat.c:8688: rapl_perf_init: Assertion `next_domain < num_domains' failed. Two recent cleanup patches that were not supposed to change anything broke the core_id code needed for AMD RAPL initialization: commit 070e92361eec ("tools/power turbostat: Enhance HT enumeration") commit ddf60e38ca04 ("tools/power turbostat: Simplify global core_id calculation") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-17selftests: tc_actions: don't dump 2MB of \0 to stdoutJakub Kicinski
Since we started running selftests in NIPA we have been seeing tc_actions.sh generate a soft lockup warning on ~20% of the runs. On the pre-netdev foundation setup it was actually a missed irq splat from the console. Now it's either that or a lockup. I initially suspected a socket locking issue since the test is exercising local loopback with act_mirred. After hours of staring at this I noticed in strace that ncat when -o $file is specified _both_ saves the output to the file and still prints it to stdout. Because the file being sent is constructed with: dd conv=sparse status=none if=/dev/zero bs=1M count=2 of=$mirred ^^^^^^^^^ the data printed is all \0. Most terminals don't display nul characters (and neither does vng output capture save them). But QEMU's serial console still has to poke them thru which is very slow and causes the lockup (if the file is >600kB). Replace the '-o $file' with '> $file'. This speeds the test up from 2m20s to 18s on debug kernels, and prevents the warnings. Fixes: ca22da2fbd69 ("act_mirred: use the backlog for nested calls to mirred ingress") Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260214035159.2119699-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-02-17bpftool: Fix truncated netlink dumpsJakub Kicinski
Netlink requires that the recv buffer used during dumps is at least min(PAGE_SIZE, 8k) (see the man page). Otherwise the messages will get truncated. Make sure bpftool follows this requirement, avoid missing information on systems with large pages. Acked-by: Quentin Monnet <qmo@kernel.org> Fixes: 7084566a236f ("tools/bpftool: Remove libbpf_internal.h usage in bpftool") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20260217194150.734701-1-kuba@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-02-17Merge tag 'turbostat-2026.02.14' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull turbostat updates from Len Brown: - Add L2 statistics columns for recent Intel processors: L2MRPS = L2 Cache M-References Per Second L2%hit = L2 Cache Hit % - Sort work and output by cpu# rather than core# - Minor features and fixes * tag 'turbostat-2026.02.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (23 commits) tools/power turbostat: version 2026.02.14 tools/power turbostat: Fix and document --header_iterations tools/power turbostat: Use strtoul() for iteration parsing tools/power turbostat: Favor cpu# over core# tools/power turbostat: Expunge logical_cpu_id tools/power turbostat: Enhance HT enumeration tools/power turbostat: Simplify global core_id calculation tools/power turbostat: Unify even/odd/average counter referencing tools/power turbostat: Allocate average counters dynamically tools/power turbostat: Delete core_data.core_id tools/power turbostat: Rename physical_core_id to core_id tools/power turbostat: Cleanup package_id tools/power turbostat: Cleanup internal use of "base_cpu" tools/power turbostat: Add L2 cache statistics tools/power turbostat: Remove redundant newlines from err(3) strings tools/power turbostat: Allow more use of is_hybrid flag tools/power turbostat: Rename "LLCkRPS" column to "LLCMRPS" tools/power turbostat.8: Document the "--force" option tools/power turbostat: Harden against unexpected values tools/power turbostat: Dump hypervisor name ...
2026-02-17libbpf: Delay feature gate check until object prepare timeEmil Tsalapatis
Commit 728ff167910e ("libbpf: Add gating for arena globals relocation feature") adds a feature gate check that loads a map and BPF program to test the running kernel supports large direct offsets for LDIMM64 instructions. This check is currently used to calculate arena symbol offsets during bpf_object__collect_relos, itself called by bpf_object_open. However, the program calling bpf_object_open may not have the permissions to load maps and programs. This is the case with the BPF selftests, where bpftool is invoked at compilation time during skeleton generation. This causes errors as the feature gate unexpectedly fails with -EPERM. Avoid this by moving all the use of the FEAT_LDIMM64_FULL_RANGE_OFF feature gate to BPF object preparation time instead. Fixes: 728ff167910e ("libbpf: Add gating for arena globals relocation feature") Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20260217204345.548648-3-emil@etsalapatis.com
2026-02-17libbpf: Do not use PROG_TYPE_TRACEPOINT program for feature gatingEmil Tsalapatis
Commit 728ff167910e uses a PROG_TYPE_TRACEPOINT BPF test program to check whether the running kernel supports large LDIMM64 offsets. The feature gate incorrectly assumes that the program will fail at verification time with one of two messages, depending on whether the feature is supported by the running kernel. However, PROG_TYPE_TRACEPOINT programs may fail to load before verification even starts, e.g., if the shell does not have the appropriate capabilities. Use a BPF_PROG_TYPE_SOCKET_FILTER program for the feature gate instead. Also fix two minor issues. First, ensure the log buffer for the test is initialized: Failing program load before verification led to libbpf dumping uninitialized data to stdout. Also, ensure that close() is only called for program_fd in the probe if the program load actually succeeded. The call was currently failing silently with -EBADF most of the time. Fixes: 728ff167910e ("libbpf: Add gating for arena globals relocation feature") Reported-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20260217204345.548648-2-emil@etsalapatis.com
2026-02-17Merge tag 'usb-7.0-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt updates from Greg KH: "Here is the "big" set of USB and Thunderbolt driver updates for 7.0-rc1. Overall more lines were removed than added, thanks to dropping the obsolete isp1362 USB host controller driver, always a nice change. Other than that, nothing major happening here, highlights are: - lots of dwc3 driver updates and new hardware support added - usb gadget function driver updates - usb phy driver updates - typec driver updates and additions - USB rust binding updates for syntax and formatting changes - more usb serial device ids added - other smaller USB core and driver updates and additions All of these have been in linux-next for a long time, with no reported problems" * tag 'usb-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (77 commits) usb: typec: ucsi: Add Thunderbolt alternate mode support usb: typec: hd3ss3220: Check if regulator needs to be switched usb: phy: tegra: parametrize PORTSC1 register offset usb: phy: tegra: parametrize HSIC PTS value usb: phy: tegra: return error value from utmi_wait_register usb: phy: tegra: cosmetic fixes dt-bindings: usb: renesas,usbhs: Add RZ/G3E SoC support usb: dwc2: fix resume failure if dr_mode is host usb: cdns3: fix role switching during resume usb: dwc3: gadget: Move vbus draw to workqueue context USB: serial: option: add Telit FN920C04 RNDIS compositions usb: dwc3: Log dwc3 address in traces usb: gadget: tegra-xudc: Add handling for BLCG_COREPLL_PWRDN usb: phy: tegra: add HSIC support usb: phy: tegra: use phy type directly usb: typec: ucsi: Enforce mode selection for cros_ec_ucsi usb: typec: ucsi: Support mode selection to activate altmodes usb: typec: Introduce mode_selection bit usb: typec: Implement mode selection usb: typec: Expose alternate mode priority via sysfs ...
2026-02-17selftests: forwarding: fix pedit tests failure with br_netfilter enabledAleksei Oladko
The tests use the tc pedit action to modify the IPv4 source address ("pedit ex munge ip src set"), but the IP header checksum is not recalculated after the modification. As a result, the modified packet fails sanity checks in br_netfilter after bridging and is dropped, which causes the test to fail. Fix this by ensuring net.bridge.bridge-nf-call-iptables is set to 0 during the test execution. This prevents the bridge from passing L2 traffic to netfilter, bypassing the checksum validation that causes the test failure. Fixes: 92ad3828944e ("selftests: forwarding: Add a test for pedit munge SIP and DIP") Fixes: 226657ba2389 ("selftests: forwarding: Add a forwarding test for pedit munge dsfield") Signed-off-by: Aleksei Oladko <aleksey.oladko@virtuozzo.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20260213131907.43351-4-aleksey.oladko@virtuozzo.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-02-17selftests: forwarding: vxlan_bridge_1d_ipv6: fix test failure with ↵Aleksei Oladko
br_netfilter enabled The test generates VXLAN traffic using mausezahn, where the encapsulated inner IPv6 packet has an incorrect payload length set in the IPv6 header. After VXLAN decapsulation, such packets do not pass sanity checks in br_netfilter and are dropped, which causes the test to fail. Fix this by setting the correct IPv6 payload length for the encapsulated packet generated by mausezahn, so that the packet is accepted by br_netfilter. tools/testing/selftests/net/forwarding/vxlan_bridge_1d_ipv6.sh lines 698-706 )"00:03:"$( : Payload length )"3a:"$( : Next header )"04:"$( : Hop limit )"$saddr:"$( : IP saddr )"$daddr:"$( : IP daddr )"80:"$( : ICMPv6.type )"00:"$( : ICMPv6.code )"00:"$( : ICMPv6.checksum ) Data after IPv6 header: • 80: — 1 byte (ICMPv6 type) • 00: — 1 byte (ICMPv6 code) • 00: — 1 byte (ICMPv6 checksum, truncated) Total: 3 bytes → 00:03 is correct. The old value 00:08 did not match the actual payload size. Fixes: b07e9957f220 ("selftests: forwarding: Add VxLAN tests with a VLAN-unaware bridge for IPv6") Signed-off-by: Aleksei Oladko <aleksey.oladko@virtuozzo.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20260213131907.43351-3-aleksey.oladko@virtuozzo.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-02-17selftests: forwarding: vxlan_bridge_1d: fix test failure with br_netfilter ↵Aleksei Oladko
enabled The test generates VXLAN traffic using mausezahn, where the encapsulated inner IPv4 packet contains a zero IP header checksum. After VXLAN decapsulation, such packets do not pass sanity checks in br_netfilter and are dropped, which causes the test to fail. Fix this by calculating and setting a valid IPv4 header checksum for the encapsulated packet generated by mausezahn, so that the packet is accepted by br_netfilter. Fixed by using the payload_template_calc_checksum() / payload_template_expand_checksum() helpers that are only available in v6.3 and newer kernels. Fixes: a0b61f3d8ebf ("selftests: forwarding: vxlan_bridge_1d: Add an ECN decap test") Signed-off-by: Aleksei Oladko <aleksey.oladko@virtuozzo.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20260213131907.43351-2-aleksey.oladko@virtuozzo.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
generated by cgit v1.2.3 (git 2.46.0) at 2026-03-07 16:20:28 +0000