| Message ID | 1365774695-13226-1-git-send-email-luis.henriques@canonical.com |
|---|---|
| State | New |
| Headers | show |
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;
This is a note to let you know that I have just added a patch titled tracing: Fix double free when function profile init failed to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ From b8b3e6d0f4e562ac38f5ab156ed0e987b0a3091c Mon Sep 17 00:00:00 2001 From: Namhyung Kim <namhyung.kim@lge.com> Date: Mon, 1 Apr 2013 21:46:23 +0900 Subject: [PATCH] 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 Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- kernel/trace/ftrace.c | 1 - 1 file changed, 1 deletion(-) -- 1.8.1.2