Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 before b2f54ed7739dfdf42c4df0a11131aad7c8635464; affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 before fa58d9db5cad4bb7bb694b6837e3b96d87554f2b; affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 before b49c6e5dd236787f13a062ec528d724169f11152; affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 before 6c01ef65de0b321b2db1ef9abf8f1d15862b937e; affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 before d9ef84a7c222497ecb5fdf93361c76931804825e; affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 before 0143f282b15f7cedc0392ea10050fb6000fd16e6; affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 before 41b7181a40af84448a2b144fb02d8bf32b7e9a23; affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 before 7bf744f2de0a848fb1d717f5831b03db96feae89 |
| Linux / Linux | affected 3.5; unaffected 0 before 3.5; unaffected 4.14.326 through 4.14.*; unaffected 4.19.295 through 4.19.*; unaffected 5.4.257 through 5.4.*; unaffected 5.10.197 through 5.10.*; unaffected 5.15.133 through 5.15.*; unaffected 6.1.55 through 6.1.*; unaffected 6.5.5 through 6.5.*; unaffected 6.6 through * |
CWE
No CWE identifiers supplied.
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
ADP enrichment
No English description supplied.
No references supplied.