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Date: Thu, 18 Apr 2013 10:16:24 +0100 From: Luis Henriques <luis.henriques@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Frederic Weisbecker <fweisbec@...il.com>, Namhyung Kim <namhyung.kim@....com>, Namhyung Kim <namhyung@...nel.org>, Steven Rostedt <rostedt@...dmis.org>, Luis Henriques <luis.henriques@...onical.com> Subject: [PATCH 39/72] tracing: Fix double free when function profile init failed 3.5.7.11 -stable 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: Luis Henriques <luis.henriques@...onical.com> --- kernel/trace/ftrace.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 00ea125..7da46c7 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -642,7 +642,6 @@ 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; -- 1.8.1.2 -- 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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