| From | David Howells <> | Subject | Re: [patch 6/9] signal: Fix racy access to __task_cred in kill_pid_info_as_uid() | Date | Fri, 11 Dec 2009 13:53:47 +0000 |
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Thomas Gleixner <tglx@linutronix.de> wrote:
> kill_pid_info_as_uid() accesses __task_cred() without being in a RCU > read side critical section. tasklist_lock is not protecting that when > CONFIG_TREE_PREEMPT_RCU=y. > > Convert the whole tasklist_lock section to rcu and use > lock_task_sighand to prevent the exit race. > > Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Howells <dhowells@redhat.com>
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