diff options
| author | Zhang Shurong <[email protected]> | 2023-05-07 15:52:47 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <[email protected]> | 2023-05-14 06:30:03 +0100 |
| commit | aa4a447b81b84f69c1a89ad899df157f386d7636 (patch) | |
| tree | 51a5b1024a8acbbfa51c448315b8c0d5c0051df7 /tools/testing/selftests/bpf/prog_tests/prog_array_init.c | |
| parent | dff919090155fb22679869e8469168f270dcd97f (diff) | |
media: dvb-usb-v2: rtl28xxu: fix null-ptr-deref in rtl28xxu_i2c_xfer
In rtl28xxu_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. Malicious data finally reach rtl28xxu_i2c_xfer. If accessing
msg[i].buf[0] without sanity check, null ptr 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/[email protected]
Signed-off-by: Zhang Shurong <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/prog_array_init.c')
0 files changed, 0 insertions, 0 deletions