5.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Nikolay Kuratov <kniv@xxxxxxxxxxxxxx>
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@xxxxxxxxxx
Fixes: b022f0c7e404 ("tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols")
Signed-off-by: Nikolay Kuratov <kniv@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
v1 -> v2:
* Reword commit title and message
* Send for stable instead of mainline
kernel/trace/trace_kprobe.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -1872,7 +1872,7 @@ create_local_trace_kprobe(char *func, vo
int ret;
char *event;
- if (func) {
+ if (func && !strchr(func, ':')) {
unsigned int count;
count = number_of_same_symbols(func);
