Oleg Nesterov f9d81f61c8 ptrace: PTRACE_LISTEN forgets to unlock ->siglock ...

If PTRACE_LISTEN fails after lock_task_sighand() it doesn't drop ->siglock.

Reported-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2011-09-25 11:02:00 -07:00

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