Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_codec: validate vendor codec count length The Read Local Supported Codecs parsers consume the variable-sized standard codec array before parsing the vendor codec count. Although the initial reply-size check includes a vendor count byte in the fixed layout, it does not guarantee that the byte remains after the standard codec array. If a controller reply ends immediately after that array, calculating the vendor codec array size reads vnd_codecs->num beyond the skb data. Use skb_pull_data() to validate and consume each codec header before using its count in both command variants.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 before 9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8; affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 before a6da782fefae611e68a1aa79644065fc8ca5abcd; affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 before e4cfd3c4299105237458b27958bd7b0aa4c60795; affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 before f49a543d76d48f184b34225d9c0e2fc4cbdea8ec; affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 before 12a82819b0cada6e304790b1097f8f9006eb6123; affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 before d0795cfd6f655f4de84868a4f4bb41a03f037b3d |
| Linux / Linux | affected 5.16; unaffected 0 before 5.16; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.54 through 6.18.*; unaffected 7.2.8 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8
- https://git.kernel.org/stable/c/a6da782fefae611e68a1aa79644065fc8ca5abcd
- https://git.kernel.org/stable/c/e4cfd3c4299105237458b27958bd7b0aa4c60795
- https://git.kernel.org/stable/c/f49a543d76d48f184b34225d9c0e2fc4cbdea8ec
- https://git.kernel.org/stable/c/12a82819b0cada6e304790b1097f8f9006eb6123
- https://git.kernel.org/stable/c/d0795cfd6f655f4de84868a4f4bb41a03f037b3d