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

commit b022f0c7e4 ("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 9d8616034f ("tracing/kprobes: Add symbol counting check when module loads")

Link: https://lore.kernel.org/linux-trace-kernel/20240705161030.b3ddb33a8167013b9b1da202@kernel.org
Fixes: b022f0c7e4 ("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

									
										kernel/trace/trace_kprobe.c
									
		+1
		-1
	
												View File
												
				@@ -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);