A nested lock depth was added to the hasbin_delete() code but it
doesn't actually work some well and results in tons of lockdep splats.
Fix the code instead to properly drop the lock around the operation
and just keep peeking the head of the hashbin queue.
Change-Id: I0cb630739aa44b9e7c4a5b775e906713775f13ef
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
CVE-2017-6348
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>
dde420dc39