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| author | Zhang Shurong <zhang_shurong@foxmail.com> | 2023-07-08 18:28:17 +0200 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2023-07-19 12:57:50 +0200 |
| commit | 1047f9343011f2cedc73c64829686206a7e9fc3f (patch) | |
| tree | fa7e6c139e2fc03f42f9ba69e2967c31f95ab498 /LICENSES | |
| parent | media: anysee: fix null-ptr-deref in anysee_master_xfer (diff) | |
| download | linux-1047f9343011f2cedc73c64829686206a7e9fc3f.tar.xz linux-1047f9343011f2cedc73c64829686206a7e9fc3f.zip | |
media: az6007: Fix null-ptr-deref in az6007_i2c_xfer()
In az6007_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 az6007_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()")
Signed-off-by: Zhang Shurong <zhang_shurong@foxmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Diffstat (limited to 'LICENSES')
0 files changed, 0 insertions, 0 deletions