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tracing/kprobes: Skip symbol counting logic for module symbols in create_local_trace_kprobe()

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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>
This commit is contained in:
Nikolay Kuratov 2024-12-16 14:19:23 +03:00 • committed by Greg Kroah-Hartman
parent fb5b4d675d
commit 20df02cb98
1 changed files with 1 additions and 1 deletions
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2
kernel/trace/trace_kprobe.c
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@ -1663,7 +1663,7 @@ create_local_trace_kprobe(char *func, void *addr, unsigned long offs,
int ret;
char *event;
if (func) {
if (func && !strchr(func, ':')) {
unsigned int count;
count = number_of_same_symbols(func);