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| author | Jeremy Cline <jeremy@jcline.org> | 2023-10-09 16:00:54 -0400 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-10-12 09:32:10 +0200 |
| commit | 354a6e707e29cb0c007176ee5b8db8be7bd2dee0 (patch) | |
| tree | db32a5ec815d25769e27055f0c6400a18405b080 /net/netfilter | |
| parent | e2bca4870fdaf855651ee80b083d892599c5d982 (diff) | |
| download | lwn-354a6e707e29cb0c007176ee5b8db8be7bd2dee0.tar.gz lwn-354a6e707e29cb0c007176ee5b8db8be7bd2dee0.zip | |
nfc: nci: assert requested protocol is valid
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: 6a2968aaf50c ("NFC: basic NCI protocol implementation")
Reported-and-tested-by: syzbot+0839b78e119aae1fec78@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=0839b78e119aae1fec78
Signed-off-by: Jeremy Cline <jeremy@jcline.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20231009200054.82557-1-jeremy@jcline.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/netfilter')
0 files changed, 0 insertions, 0 deletions