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| author | Wei Chen <harperchen1110@gmail.com> | 2023-03-13 11:58:53 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2023-05-14 08:29:59 +0300 |
| commit | a6dcefcc08eca1bf4e3d213c97c3cfb75f377935 (patch) | |
| tree | 58ecbc61e92a9b0b98f2130b6bd62004404ed2f9 /drivers/usb/cdns3/cdns3-debug.h | |
| parent | 858e97d7956d17a2cb56a9413468704a4d5abfe1 (diff) | |
| download | linux-a6dcefcc08eca1bf4e3d213c97c3cfb75f377935.tar.xz | |
media: dvb-usb-v2: ec168: fix null-ptr-deref in ec168_i2c_xfer()
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>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-debug.h')
0 files changed, 0 insertions, 0 deletions