Description
In the Linux kernel, the following vulnerability has been resolved: 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()")
Product status
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before bc07cae4f36bb18d5b6a9ed835c1278ca44ec82e
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before ce8b7c711b9c4f040b5419729d0972db8e374324
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 529fd5593b721e6f4370c591f5086649ed149ff6
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before c33280d6bd668dbdc5a5f07887cc63a52ab4789c
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 09906650484a09b3a4d4b3d3065395856810becd
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 0bb32863426afe0badac25c28d59021f211d0f48
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before a0f744d6cdde81d7382e183f77a4080a39b206cd
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 19eb5d8e6aa1169d368a4d69aae5572950deb89d
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before ce5cac69b2edac3e3246fee03e8f4c2a1075238b
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/bc07cae4f36bb18d5b6a9ed835c1278ca44ec82e
git.kernel.org/...c/ce8b7c711b9c4f040b5419729d0972db8e374324
git.kernel.org/...c/529fd5593b721e6f4370c591f5086649ed149ff6
git.kernel.org/...c/c33280d6bd668dbdc5a5f07887cc63a52ab4789c
git.kernel.org/...c/09906650484a09b3a4d4b3d3065395856810becd
git.kernel.org/...c/0bb32863426afe0badac25c28d59021f211d0f48
git.kernel.org/...c/a0f744d6cdde81d7382e183f77a4080a39b206cd
git.kernel.org/...c/19eb5d8e6aa1169d368a4d69aae5572950deb89d
git.kernel.org/...c/ce5cac69b2edac3e3246fee03e8f4c2a1075238b
