commit d0d394c71604053ee6e1bf8f73432e543ae8b247
author George Kennedy <george.kennedy@oracle.com> Wed Jul 15 09:59:31 2020 -0400
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Wed Jul 29 10:18:31 2020 +0200
tree b592b0f6da6cd801e34680fcb8a1929ae2906673
parent ad49d766612e984b2db212f03b3b703a2ad4f531

ax88172a: fix ax88172a_unbind() failures

[ Upstream commit c28d9a285668c799eeae2f7f93e929a6028a4d6d ]

If ax88172a_unbind() fails, make sure that the return code is
less than zero so that cleanup is done properly and avoid UAF.

Fixes: a9a51bd727d1 ("ax88172a: fix information leak on short answers")
Signed-off-by: George Kennedy <george.kennedy@oracle.com>
Reported-by: syzbot+4cd84f527bf4a10fc9c1@syzkaller.appspotmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>