Description
In the Linux kernel, the following vulnerability has been resolved: media: af9005: Fix null-ptr-deref in af9005_i2c_xfer In af9005_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 af9005_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()")
Product status
af4e067e1dcf926d9523dff11e46c45fd9fa9da2 (git) before 98c12abb275b75a98ff62de9466d21e4daa98536
af4e067e1dcf926d9523dff11e46c45fd9fa9da2 (git) before 63d962ac7a52c0ff4cd09af2e284dce5e5955dfe
af4e067e1dcf926d9523dff11e46c45fd9fa9da2 (git) before 0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9
af4e067e1dcf926d9523dff11e46c45fd9fa9da2 (git) before c7e5ac737db25d7387fe517cb5207706782b6cf8
af4e067e1dcf926d9523dff11e46c45fd9fa9da2 (git) before 033b0c0780adee32dde218179e9bc51d2525108f
af4e067e1dcf926d9523dff11e46c45fd9fa9da2 (git) before abb6fd93e05e80668d2317fe1110bc99b05034c3
af4e067e1dcf926d9523dff11e46c45fd9fa9da2 (git) before e595ff350b2fd600823ee8491df7df693ae4b7c5
af4e067e1dcf926d9523dff11e46c45fd9fa9da2 (git) before f4ee84f27625ce1fdf41e8483fa0561a1b837d10
2.6.23
Any version before 2.6.23
4.14.326 (semver)
4.19.295 (semver)
5.4.257 (semver)
5.10.197 (semver)
5.15.133 (semver)
6.1.55 (semver)
6.5.5 (semver)
6.6 (original_commit_for_fix)
References
git.kernel.org/...c/98c12abb275b75a98ff62de9466d21e4daa98536
git.kernel.org/...c/63d962ac7a52c0ff4cd09af2e284dce5e5955dfe
git.kernel.org/...c/0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9
git.kernel.org/...c/c7e5ac737db25d7387fe517cb5207706782b6cf8
git.kernel.org/...c/033b0c0780adee32dde218179e9bc51d2525108f
git.kernel.org/...c/abb6fd93e05e80668d2317fe1110bc99b05034c3
git.kernel.org/...c/e595ff350b2fd600823ee8491df7df693ae4b7c5
git.kernel.org/...c/f4ee84f27625ce1fdf41e8483fa0561a1b837d10