CVE-2026-98247
Description
AI Translation Available
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.
https://git.kernel.org/stable/c/12a82819b0cada6e304790b1097f8f9006eb6123
https://git.kernel.org/stable/c/9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8
https://git.kernel.org/stable/c/a6da782fefae611e68a1aa79644065fc8ca5abcd
https://git.kernel.org/stable/c/d0795cfd6f655f4de84868a4f4bb41a03f037b3d
https://git.kernel.org/stable/c/e4cfd3c4299105237458b27958bd7b0aa4c60795
https://git.kernel.org/stable/c/f49a543d76d48f184b34225d9c0e2fc4cbdea8ec