Eric Biggers 7bfd8e1fd8 binder: use wake_up_pollfree() ... commit a880b28a71 upstream. wake_up_poll() uses nr_exclusive=1, so it's not guaranteed to wake up all exclusive waiters. Yet, POLLFREE *must* wake up all waiters. epoll and aio poll are fortunately not affected by this, but it's very fragile. Thus, the new function wake_up_pollfree() has been introduced. Convert binder to use wake_up_pollfree(). Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Fixes: f5cb779ba1 ("ANDROID: binder: remove waitqueue when thread exits.") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211209010455.42744-3-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-12-14 10:16:55 +01:00
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binder.c	binder: use wake_up_pollfree()	2021-12-14 10:16:55 +01:00
binder_alloc.c	binder: Don't use mmput() from shrinker function.	2020-07-29 07:42:56 +02:00
binder_alloc.h	binder: fix race that allows malicious free of live buffer	2018-12-05 19:41:26 +01:00
binder_alloc_selftest.c	android: binder: Add global lru shrinker to binder	2017-08-28 16:47:17 +02:00
binder_trace.h	android: binder: Add shrinker tracepoints	2017-08-28 16:47:17 +02:00
Kconfig	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Makefile	android: binder: Add allocator selftest	2017-08-28 16:47:17 +02:00