Commit f64c63c0 authored by Jeremy Cline's avatar Jeremy Cline Committed by Liu Jian
Browse files

nfc: nci: assert requested protocol is valid

stable inclusion
from stable-v5.10.199
commit a424807d860ba816aaafc3064b46b456361c0802
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I95B1K
CVE: CVE-2023-52507

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a424807d860ba816aaafc3064b46b456361c0802



---------------------------

[ Upstream commit 354a6e70 ]

The protocol is used in a bit mask to determine if the protocol is
supported. Assert the provided protocol is less than the maximum
defined so it doesn't potentially perform a shift-out-of-bounds and
provide a clearer error for undefined protocols vs unsupported ones.

Fixes: 6a2968aa ("NFC: basic NCI protocol implementation")
Reported-and-tested-by: default avatar <syzbot+0839b78e119aae1fec78@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/bug?extid=0839b78e119aae1fec78


Signed-off-by: default avatarJeremy Cline <jeremy@jcline.org>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20231009200054.82557-1-jeremy@jcline.org


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarLiu Jian <liujian56@huawei.com>
parent 2ad5d68f
Loading
Loading
Loading
Loading
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Please to comment