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 mainline and 6.12 as those contain more general fix
commit 9d8616034f16 ("tracing/kprobes: Add symbol counting check when module
loads")
Link:
https://lore.kernel.org/linux-trace-kernel/20240705161030.b3ddb33a8167013b9b1da...@kernel.org
Fixes: b022f0c7e404 ("tracing/kprobes: Return EADDRNOTAVAIL when func matches
several symbols")
Signed-off-by: Nikolay Kuratov <k...@yandex-team.ru>
---
v1 -> v2:
* Reword commit title and message
* Send for stable instead of mainline
v2 -> v3:
* Specify first good LTS version in commit message
* Remove explicit versions from the subject since 6.1 and 5.10 need fix too
kernel/trace/trace_kprobe.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 12d997bb3e78..94cb09d44115 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -1814,7 +1814,7 @@ 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);
--
2.34.1
