Description
In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer In af9035_i2c_master_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 af9035_i2c_master_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
7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to < b2f54ed7739dfdf42c4df0a11131aad7c8635464affected7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to < fa58d9db5cad4bb7bb694b6837e3b96d87554f2baffected7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to < b49c6e5dd236787f13a062ec528d724169f11152affected7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to < 6c01ef65de0b321b2db1ef9abf8f1d15862b937eaffected7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to < d9ef84a7c222497ecb5fdf93361c76931804825eaffected7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to < 0143f282b15f7cedc0392ea10050fb6000fd16e6affected7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to < 41b7181a40af84448a2b144fb02d8bf32b7e9a23affected7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to < 7bf744f2de0a848fb1d717f5831b03db96feae89affected
Linux Linux
Default version status: affected
3.5affected0 to < 3.5unaffected4.14.326 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/b2f54ed7739dfdf42c4df0a11131aad7c8635464 ↗
- https://git.kernel.org/stable/c/fa58d9db5cad4bb7bb694b6837e3b96d87554f2b ↗
- https://git.kernel.org/stable/c/b49c6e5dd236787f13a062ec528d724169f11152 ↗
- https://git.kernel.org/stable/c/6c01ef65de0b321b2db1ef9abf8f1d15862b937e ↗
- https://git.kernel.org/stable/c/d9ef84a7c222497ecb5fdf93361c76931804825e ↗
- https://git.kernel.org/stable/c/0143f282b15f7cedc0392ea10050fb6000fd16e6 ↗
- https://git.kernel.org/stable/c/41b7181a40af84448a2b144fb02d8bf32b7e9a23 ↗
- https://git.kernel.org/stable/c/7bf744f2de0a848fb1d717f5831b03db96feae89 ↗