diff options
| author | Jiri Olsa <jolsa@redhat.com> | 2021-11-23 17:28:01 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-01 11:04:43 +0300 |
| commit | a3e90db5180fd7f5d38940e2022aee19c3332f3e (patch) | |
| tree | 8490fc4559fbeaf8d5365cd338d9ca6409c4e7a1 | |
| parent | 83247fdb9417e7ce9eaf838e43840df8e6ee9a1c (diff) | |
| download | linux-a3e90db5180fd7f5d38940e2022aee19c3332f3e.tar.xz | |
tracing/uprobe: Fix uprobe_perf_open probes iteration
commit 1880ed71ce863318c1ce93bf324876fb5f92854f upstream.
Add missing 'tu' variable initialization in the probes loop,
otherwise the head 'tu' is used instead of added probes.
Link: https://lkml.kernel.org/r/20211123142801.182530-1-jolsa@kernel.org
Cc: stable@vger.kernel.org
Fixes: 99c9a923e97a ("tracing/uprobe: Fix double perf_event linking on multiprobe uprobe")
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | kernel/trace/trace_uprobe.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index 0a5c0db3137e..f5f0039d31e5 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -1313,6 +1313,7 @@ static int uprobe_perf_open(struct trace_event_call *call, return 0; list_for_each_entry(pos, trace_probe_probe_list(tp), list) { + tu = container_of(pos, struct trace_uprobe, tp); err = uprobe_apply(tu->inode, tu->offset, &tu->consumer, true); if (err) { uprobe_perf_close(call, event); |