3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Oleg Nesterov <o...@redhat.com>
commit b40a79591ca918e7b91b0d9b6abd5d00f2e88c19 upstream.
flush_old_exec() clears PF_KTHREAD but forgets about PF_NOFREEZE.
Signed-off-by: Oleg Nesterov <o...@redhat.com>
Acked-by: Tejun Heo <t...@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
fs/exec.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1114,7 +1114,8 @@ int flush_old_exec(struct linux_binprm *
bprm->mm = NULL; /* We're using it now */
set_fs(USER_DS);
- current->flags &= ~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_KTHREAD);
+ current->flags &=
+ ~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_KTHREAD | PF_NOFREEZE);
flush_thread();
current->personality &= ~bprm->per_clear;
--
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