]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
tracing/kprobes: Skip symbol counting logic for module symbols in create_local_trace_...
authorNikolay Kuratov <kniv@yandex-team.ru>
Mon, 16 Dec 2024 11:19:23 +0000 (14:19 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 19 Dec 2024 17:07:22 +0000 (18:07 +0100)
commitf585c5793aca1186129a7c26009cc7ed077eb0b0
tree178af973bd2b33964d008612c13b70b9f9215d73
parentb57ac2d92c1f565743f6890a5b9cf317ed856b09
tracing/kprobes: Skip symbol counting logic for module symbols in create_local_trace_kprobe()

commit b022f0c7e404 ("tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols")
avoids checking number_of_same_symbols() for module symbol in
__trace_kprobe_create(), but create_local_trace_kprobe() should avoid this
check too. Doing this check leads to ENOENT for module_name:symbol_name
constructions passed over perf_event_open.

No bug in newer kernels as it was fixed more generally by
commit 9d8616034f16 ("tracing/kprobes: Add symbol counting check when module loads")

Link: https://lore.kernel.org/linux-trace-kernel/20240705161030.b3ddb33a8167013b9b1da202@kernel.org
Fixes: b022f0c7e404 ("tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols")
Signed-off-by: Nikolay Kuratov <kniv@yandex-team.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
kernel/trace/trace_kprobe.c