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authorOleg Nesterov <oleg@redhat.com>2015-06-30 03:29:58 +0200
committerIngo Molnar <mingo@kernel.org>2015-08-03 12:21:28 +0200
commitd308b9f1e4412bcf583c82c4ca15ef97cb8b0e6f (patch)
tree0cc6e212c9ae62ad62ed3845629287d91f98a398 /COPYING
parent9a301f22faac7fc2207ee49c1855a6b4ba9c5a52 (diff)
downloadlinux-d308b9f1e4412bcf583c82c4ca15ef97cb8b0e6f.tar.bz2
stop_machine: Remove cpu_stop_work's from list in cpu_stop_park()
cpu_stop_park() does cpu_stop_signal_done() but leaves the work on stopper->works. The owner of this work can free/reuse this memory right after that and corrupt the list, so if this CPU becomes online again cpu_stopper_thread() will crash. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: dave@stgolabs.net Cc: der.herr@hofr.at Cc: paulmck@linux.vnet.ibm.com Cc: riel@redhat.com Cc: viro@ZenIV.linux.org.uk Link: http://lkml.kernel.org/r/20150630012958.GA23944@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'COPYING')
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