From: Oleg Nesterov <oleg@redhat.com>
Date: Thu, 25 Oct 2012 20:28:12 +0000 (+0200)
Subject: freezer: exec should clear PF_NOFREEZE along with PF_KTHREAD
X-Git-Tag: v3.2.33~12
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d4d11f5bb26878b31b602d8b363e89f291426b47;p=thirdparty%2Fkernel%2Fstable.git

freezer: exec should clear PF_NOFREEZE along with PF_KTHREAD

commit b40a79591ca918e7b91b0d9b6abd5d00f2e88c19 upstream.

flush_old_exec() clears PF_KTHREAD but forgets about PF_NOFREEZE.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
[bwh: Backported to 3.2: PF_FORKNOEXEC is cleared elsewhere]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/fs/exec.c b/fs/exec.c
index 160cd2f6baf96..121ccae40abbe 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1095,7 +1095,7 @@ int flush_old_exec(struct linux_binprm * bprm)
 	bprm->mm = NULL;		/* We're using it now */
 
 	set_fs(USER_DS);
-	current->flags &= ~(PF_RANDOMIZE | PF_KTHREAD);
+	current->flags &= ~(PF_RANDOMIZE | PF_KTHREAD | PF_NOFREEZE);
 	flush_thread();
 	current->personality &= ~bprm->per_clear;