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| author | Alex Guo <alexguo1023@gmail.com> | 2025-06-15 21:32:31 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2025-06-16 13:16:48 +0200 |
| commit | ce5cac69b2edac3e3246fee03e8f4c2a1075238b (patch) | |
| tree | 61c066b38d683671cada90bae271de40574bbe7e /tools/perf/scripts/python/task-analyzer.py | |
| parent | ed0234c8458b3149f15e496b48a1c9874dd24a1b (diff) | |
| download | linux-ce5cac69b2edac3e3246fee03e8f4c2a1075238b.tar.gz linux-ce5cac69b2edac3e3246fee03e8f4c2a1075238b.zip | |
media: dvb-frontends: dib7090p: fix null-ptr-deref in dib7090p_rw_on_apb()
In dib7090p_rw_on_apb, msg is controlled by user. When msg[0].buf is null and
msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing
msg[0].buf[2] without sanity check, null pointer deref would happen. We add
check on msg[0].len to prevent crash. Similar issue occurs when access
msg[1].buf[0] and msg[1].buf[1].
Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
Signed-off-by: Alex Guo <alexguo1023@gmail.com>
Link: https://lore.kernel.org/r/20250616013231.730221-1-alexguo1023@gmail.com
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions