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Martijn Coenen 718f4ad191 UPSTREAM: ANDROID: binder: synchronize_rcu() when using POLLFREE. 
To prevent races with ep_remove_waitqueue() removing the
waitqueue at the same time.

Reported-by: syzbot+a2a3c4909716e271487e@syzkaller.appspotmail.com
Signed-off-by: Martijn Coenen <maco@android.com>
Cc: stable <stable@vger.kernel.org> # 4.14+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 5eeb2ca02a2f6084fc57ae5c244a38baab07033a)

Change-Id: Ia0089448079c78d0ab0b57303faf838e9e5ee797
2018-02-23 09:44:32 +01:00
..
binder.c UPSTREAM: ANDROID: binder: synchronize_rcu() when using POLLFREE. 2018-02-23 09:44:32 +01:00
binder_alloc.c ANDROID: binder: show high watermark of alloc->pages. 2017-10-26 15:16:08 +02:00
binder_alloc.h ANDROID: binder: show high watermark of alloc->pages. 2017-10-26 15:16:08 +02:00
binder_alloc_selftest.c FROMLIST: android: binder: Add global lru shrinker to binder 2017-08-31 17:29:45 -07:00
binder_trace.h ANDROID: binder: Add tracing for binder priority inheritance. 2017-10-05 09:58:05 +02:00
Kconfig FROMLIST: android: binder: Add allocator selftest 2017-08-31 17:29:30 -07:00
Makefile FROMLIST: android: binder: Add allocator selftest 2017-08-31 17:29:30 -07:00