Ian Rogers 203719d829 perf bpf-utils: Harden get_bpf_prog_info_linear ... [ Upstream commit 01be43f2a0eaeed83e94dee054742f37625c86d9 ] In get_bpf_prog_info_linear two calls to bpf_obj_get_info_by_fd are made, the first to compute memory requirements for a struct perf_bpil and the second to fill it in. Previously the code would warn when the second call didn't match the first. Such races can be common place in things like perf test, whose perf trace tests will frequently load BPF programs. Rather than a debug message, return actual errors for this case. Out of paranoia also validate the read bpf_prog_info array value. Change the type of ptr to avoid mismatched pointer type compiler warnings. Add some additional debug print outs and sanity asserts. Closes: https://lore.kernel.org/lkml/CAP-5=fWJQcmUOP7MuCA2ihKnDAHUCOBLkQFEkQES-1ZZTrgf8Q@mail.gmail.com/ Fixes: 6ac22d036f ("perf bpf: Pull in bpf_program__get_prog_info_linear()") Reviewed-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250902181713.309797-4-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-09-09 18:58:25 +02:00
..
arch	perf tools: Fix up some comments and code to properly use the event_source bus	2025-04-07 10:08:36 +02:00
bench	perf bench: Fix perf bench syscall loop count	2025-04-10 14:39:23 +02:00
check-header_ignore_hunks/lib	perf tools: Cope with differences for lib/list_sort.c copy from the kernel	2024-10-02 15:07:32 -03:00
dlfilters
Documentation	perf tools: Fix up some comments and code to properly use the event_source bus	2025-04-07 10:08:36 +02:00
include/perf
jvmti
pmu-events	perf vendor events arm64 AmpereOneX: Fix frontend_bound calculation	2025-04-10 14:39:26 +02:00
python
scripts	perf scripts python: exported-sql-viewer.py: Fix pattern matching with Python 3	2025-06-19 15:32:06 +02:00
tests	perf tests bp_account: Fix leaked file descriptor	2025-08-15 12:13:54 +02:00
trace	perf beauty: Update copy of linux/socket.h with the kernel sources	2024-09-30 17:23:38 -03:00
ui	perf ui browser hists: Set actions->thread before calling do_zoom_thread()	2025-06-19 15:32:04 +02:00
util	perf bpf-utils: Harden get_bpf_prog_info_linear	2025-09-09 18:58:25 +02:00
.gitignore	perf tools: Remove libtraceevent in .gitignore	2025-08-15 12:13:57 +02:00
Build	perf check: Introduce 'check' subcommand	2024-09-04 09:56:05 -03:00
builtin-annotate.c	perf annotate: Display the branch counter histogram	2024-08-14 10:20:40 -03:00
builtin-bench.c	perf bench uprobe: Add uretprobe variant of uprobe benchmarks	2024-04-12 17:54:02 -03:00
builtin-buildid-cache.c	perf dso: Add reference count checking and accessor functions	2024-05-06 15:28:49 -03:00
builtin-buildid-list.c	perf buildid-list: Use perf_tool__init	2024-08-12 18:07:10 -03:00
builtin-c2c.c	perf mem: Fix missed p-core mem events on ADL and RPL	2024-09-06 11:45:17 -03:00
builtin-check.c	perf check: Fix inconsistencies in feature names	2024-09-04 16:19:53 -03:00
builtin-config.c
builtin-daemon.c	perf daemon: Fix the build on more 32-bit architectures	2024-08-19 21:44:30 -03:00
builtin-data.c
builtin-diff.c	perf report: Display the branch counter histogram	2024-08-14 10:20:40 -03:00
builtin-evlist.c	perf evlist: Print hint for group	2024-09-11 13:08:45 -03:00
builtin-ftrace.c	perf ftrace: Fix undefined behavior in cmp_profile_data()	2024-12-19 18:12:59 +01:00
builtin-help.c	perf help: Fix a typo ("bellow")	2024-09-11 11:24:12 -03:00
builtin-inject.c	perf inject: Fix use without initialization of local variables	2025-02-08 09:57:33 +01:00
builtin-kallsyms.c	perf dso: Add reference count checking and accessor functions	2024-05-06 15:28:49 -03:00
builtin-kmem.c	libsubcmd: Don't free the usage string	2024-09-04 09:54:24 -03:00
builtin-kvm.c	libsubcmd: Don't free the usage string	2024-09-04 09:54:24 -03:00
builtin-kwork.c	libsubcmd: Don't free the usage string	2024-09-04 09:54:24 -03:00
builtin-list.c	perf list: Fix topic and pmu_name argument order	2024-12-05 14:02:24 +01:00
builtin-lock.c	perf lock: Fix parse_lock_type which only retrieve one lock flag	2025-02-08 09:57:35 +01:00
builtin-mem.c	perf mem: Fix the wrong reference in parse_record_events()	2024-09-06 11:45:28 -03:00
builtin-probe.c	perf probe: Use zfree() to avoid possibly accessing dangling pointers	2024-05-07 12:44:02 -03:00
builtin-record.c	perf record: Fix incorrect --user-regs comments	2025-06-19 15:32:08 +02:00
builtin-report.c	perf report: Switch data file correctly in TUI	2025-04-10 14:39:22 +02:00
builtin-sched.c	perf sched: Fix memory leaks in 'perf sched latency'	2025-08-15 12:13:52 +02:00
builtin-script.c	perf env: Find correct branch counter info on hybrid	2024-09-11 13:08:46 -03:00
builtin-stat.c	perf tools: Fix up some comments and code to properly use the event_source bus	2025-04-07 10:08:36 +02:00
builtin-timechart.c	perf timechart: Use perf_tool__init()	2024-08-12 18:12:06 -03:00
builtin-top.c	perf top: Don't complain about lack of vmlinux when not resolving some kernel samples	2025-02-08 09:57:31 +01:00
builtin-trace.c	perf trace: Set errpid to false for rseq and set_robust_list	2025-06-19 15:32:08 +02:00
builtin-version.c	perf version: Update --build-options to use 'supported_features' array	2024-09-04 16:19:29 -03:00
builtin.h	perf check: Introduce 'check' subcommand	2024-09-04 09:56:05 -03:00
check-headers.sh	tools headers: Update the linux/unaligned.h copy with the kernel sources	2024-10-28 12:34:28 -03:00
command-list.txt
CREDITS
design.txt
Makefile	perf tools: Fix wrong message when running "make JOBS=1"	2024-08-01 12:11:33 -03:00
Makefile.config	perf build: Warn when libdebuginfod devel files are not available	2025-06-19 15:32:04 +02:00
Makefile.perf	perf tests: Fix 'perf report' tests installation	2025-06-19 15:32:06 +02:00
MANIFEST	perf MANIFEST: Add arch/*/include/uapi/asm/bpf_perf_event.h to the perf tarball	2025-02-08 09:57:32 +01:00
perf-archive.sh	perf build: Add shellcheck to tools/perf scripts	2024-04-12 17:54:02 -03:00
perf-completion.sh	perf build: Add shellcheck to tools/perf scripts	2024-04-12 17:54:02 -03:00
perf-iostat.sh
perf-read-vdso.c
perf-sys.h
perf.c	perf check: Introduce 'check' subcommand	2024-09-04 09:56:05 -03:00
perf.h