Eric Biggers f21e4737f8 binder: check for binder_thread allocation failure in binder_poll() ... commit f88982679f54f75daa5b8eff3da72508f1e7422f upstream. If the kzalloc() in binder_get_thread() fails, binder_poll() dereferences the resulting NULL pointer. Fix it by returning POLLERR if the memory allocation failed. This bug was found by syzkaller using fault injection. Change-Id: I1535910349c8266c0d785b0f8d2085d290ea6e92 Reported-by: syzbot <syzkaller@googlegroups.com> Fixes: 457b9a6f09 ("Staging: android: add binder driver") Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [bwh: Backported to 3.16: - Drop the binder global lock before returning - Adjust filename] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>		2019-07-27 21:52:07 +02:00
..
Kconfig	ANDROID: binder: add hwbinder,vndbinder to BINDER_DEVICES.	2018-02-06 13:12:16 +01:00
Makefile	…
binder.c	binder: check for binder_thread allocation failure in binder_poll()	2019-07-27 21:52:07 +02:00
binder_trace.h	…