Description
In the Linux kernel, the following vulnerability has been resolved: media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar In w7090p_tuner_write_serpar, 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 commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
Product status
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 7a41ecfc3415ebe3b4c44f96b3337691dcf431a3
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before b3d77a3fc71c084575d3df4ec6544b3fb6ce587d
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 17b30e5ded062bd74f8ca6f317e1d415a8680665
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 454a443eaa792c8865c861a282fe6d4f596abc3a
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 6bbaec6a036940e22318f0454b50b8000845ab59
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before f98132a59ccc59a8b97987363bc99c8968934756
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 99690a494d91a0dc86cebd628da4c62c40552bcb
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 39b06b93f24dff923c4183d564ed28c039150554
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before ed0234c8458b3149f15e496b48a1c9874dd24a1b
5.4.297 (semver)
5.10.241 (semver)
5.15.190 (semver)
6.1.149 (semver)
6.6.103 (semver)
6.12.43 (semver)
6.15.11 (semver)
6.16.2 (semver)
6.17 (original_commit_for_fix)
References
git.kernel.org/...c/7a41ecfc3415ebe3b4c44f96b3337691dcf431a3
git.kernel.org/...c/b3d77a3fc71c084575d3df4ec6544b3fb6ce587d
git.kernel.org/...c/17b30e5ded062bd74f8ca6f317e1d415a8680665
git.kernel.org/...c/454a443eaa792c8865c861a282fe6d4f596abc3a
git.kernel.org/...c/6bbaec6a036940e22318f0454b50b8000845ab59
git.kernel.org/...c/f98132a59ccc59a8b97987363bc99c8968934756
git.kernel.org/...c/99690a494d91a0dc86cebd628da4c62c40552bcb
git.kernel.org/...c/39b06b93f24dff923c4183d564ed28c039150554
git.kernel.org/...c/ed0234c8458b3149f15e496b48a1c9874dd24a1b
