diff options
| author | Wei Chen | 2023-03-13 08:58:53 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-06-09 10:34:11 +0200 |
| commit | 336ca9b371042681b348a11d66755d781ecf59ad (patch) | |
| tree | d5f48262b8ddae9a7003124dc0e579bfd6e5477b /arch | |
| parent | 1027c8c068f070ce8773ffbd2b897e2baf4b5b6e (diff) | |
media: dvb-usb-v2: ec168: fix null-ptr-deref in ec168_i2c_xfer()
[ Upstream commit a6dcefcc08eca1bf4e3d213c97c3cfb75f377935 ]
In ec168_i2c_xfer, msg is controlled by user. When msg[i].buf is null
and msg[i].len is zero, former checks on msg[i].buf would be passed.
If accessing msg[i].buf[0] without sanity check, null pointer deref
would happen. We add check on msg[i].len to prevent crash.
Similar commit:
commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
Link: https://lore.kernel.org/linux-media/20230313085853.3252349-1-harperchen1110@gmail.com
Signed-off-by: Wei Chen <harperchen1110@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions