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Commit 0eadcc7a authored by Song Liu's avatar Song Liu Committed by Ingo Molnar
Browse files

perf/core: Fix perf_uprobe_init() 



Similarly to the uprobe PMU fix in perf_kprobe_init(), fix error
handling in perf_uprobe_init() as well.

Reported-by: default avatar范龙飞 <long7573@126.com>
Signed-off-by: default avatarSong Liu <songliubraving@fb.com>
Acked-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: e12f03d7 ("perf/core: Implement the 'perf_kprobe' PMU")
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 5da13ab8

kernel/trace/trace_event_perf.c

+2 −0
Original line number Diff line number Diff line
@@ -302,6 +302,8 @@ int perf_uprobe_init(struct perf_event *p_event, bool is_retprobe) 
		return -ENOMEM;

	ret = strncpy_from_user(

		path, u64_to_user_ptr(p_event->attr.uprobe_path), PATH_MAX);

	if (ret == PATH_MAX)

		return -E2BIG;

	if (ret < 0)

		goto out;

	if (path[0] == '\0') {