diff options
| author | Namhyung Kim <namhyung.kim@lge.com> | 2013-04-01 21:46:23 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-16 21:02:31 -0700 |
| commit | e16fe8625f041b56b2d6866e2bc8abd0284499d0 (patch) | |
| tree | 7b9458a9269c039acdbe23d003ece000aa5bc011 /kernel | |
| parent | da60065417ee775999fd05d2a4ea0c268e4ec30b (diff) | |
tracing: Fix double free when function profile init failed
commit 83e03b3fe4daffdebbb42151d5410d730ae50bd1 upstream.
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/1364820385-32027-1-git-send-email-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/ftrace.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 63ce76f0cac6..5312d96f1daf 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -566,7 +566,6 @@ 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; |