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()")
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
af4e067e1dcf926d9523dff11e46c45fd9fa9da2 to < 98c12abb275b75a98ff62de9466d21e4daa98536affectedaf4e067e1dcf926d9523dff11e46c45fd9fa9da2 to < 63d962ac7a52c0ff4cd09af2e284dce5e5955dfeaffectedaf4e067e1dcf926d9523dff11e46c45fd9fa9da2 to < 0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9affectedaf4e067e1dcf926d9523dff11e46c45fd9fa9da2 to < c7e5ac737db25d7387fe517cb5207706782b6cf8affectedaf4e067e1dcf926d9523dff11e46c45fd9fa9da2 to < 033b0c0780adee32dde218179e9bc51d2525108faffectedaf4e067e1dcf926d9523dff11e46c45fd9fa9da2 to < abb6fd93e05e80668d2317fe1110bc99b05034c3affectedaf4e067e1dcf926d9523dff11e46c45fd9fa9da2 to < e595ff350b2fd600823ee8491df7df693ae4b7c5affectedaf4e067e1dcf926d9523dff11e46c45fd9fa9da2 to < f4ee84f27625ce1fdf41e8483fa0561a1b837d10affected
Linux Linux
Default version status: affected
2.6.23affected0 to < 2.6.23unaffected4.14.326 to ≤ 4.14.*unaffected4.19.295 to ≤ 4.19.*unaffected5.4.257 to ≤ 5.4.*unaffected5.10.197 to ≤ 5.10.*unaffected5.15.133 to ≤ 5.15.*unaffected6.1.55 to ≤ 6.1.*unaffected6.5.5 to ≤ 6.5.*unaffected6.6 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/98c12abb275b75a98ff62de9466d21e4daa98536 ↗
- https://git.kernel.org/stable/c/63d962ac7a52c0ff4cd09af2e284dce5e5955dfe ↗
- https://git.kernel.org/stable/c/0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9 ↗
- https://git.kernel.org/stable/c/c7e5ac737db25d7387fe517cb5207706782b6cf8 ↗
- https://git.kernel.org/stable/c/033b0c0780adee32dde218179e9bc51d2525108f ↗
- https://git.kernel.org/stable/c/abb6fd93e05e80668d2317fe1110bc99b05034c3 ↗
- https://git.kernel.org/stable/c/e595ff350b2fd600823ee8491df7df693ae4b7c5 ↗
- https://git.kernel.org/stable/c/f4ee84f27625ce1fdf41e8483fa0561a1b837d10 ↗