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Date: Mon, 22 Apr 2013 15:25:59 +0100 From: Ben Hutchings <ben@...adent.org.uk> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org CC: akpm@...ux-foundation.org, "Namhyung Kim" <namhyung.kim@....com>, "Namhyung Kim" <namhyung@...nel.org>, "Frederic Weisbecker" <fweisbec@...il.com>, "Steven Rostedt" <rostedt@...dmis.org> Subject: [33/75] tracing: Fix double free when function profile init failed 3.2.44-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Namhyung Kim <namhyung.kim@....com> 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 Cc: Frederic Weisbecker <fweisbec@...il.com> Cc: Namhyung Kim <namhyung.kim@....com> Signed-off-by: Namhyung Kim <namhyung@...nel.org> Signed-off-by: Steven Rostedt <rostedt@...dmis.org> Signed-off-by: Ben Hutchings <ben@...adent.org.uk> --- kernel/trace/ftrace.c | 1 - 1 file changed, 1 deletion(-) --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -572,7 +572,6 @@ int ftrace_profile_pages_init(struct ftr free_page(tmp); } - free_page((unsigned long)stat->pages); stat->pages = NULL; stat->start = NULL; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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