commit: 83e03b3fe4daffdebbb42151d5410d730ae50bd1 From: Namhyung Kim <[email protected]> Date: Mon, 1 Apr 2013 21:46:23 +0900 Subject: tracing: Fix double free when function profile init failed
On the failure path, stat->start and stat->pages will refer same page. So it'll attempt to free the same page again and get kernel panic. Link: http://lkml.kernel.org/r/[email protected] Cc: Frederic Weisbecker <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Signed-off-by: Namhyung Kim <[email protected]> Signed-off-by: Steven Rostedt <[email protected]> --- kernel/trace/ftrace.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 7e89710..926ebfb 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -694,7 +694,6 @@ int ftrace_profile_pages_init(struct ftrace_profile_stat *stat) free_page(tmp); } - free_page((unsigned long)stat->pages); stat->pages = NULL; stat->start = NULL; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
