CVE-2026-98247
Last modified
CVE-2026-98247 is a vulnerability of currently unknown severity. 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.
Description
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 Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < 9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8; >= 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < a6da782fefae611e68a1aa79644065fc8ca5abcd; >= 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < e4cfd3c4299105237458b27958bd7b0aa4c60795; >= 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < f49a543d76d48f184b34225d9c0e2fc4cbdea8ec; >= 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < 12a82819b0cada6e304790b1097f8f9006eb6123; >= 8961987f3f5fa2f2618e72304d013c8dd5e604a6, < d0795cfd6f655f4de84868a4f4bb41a03f037b3d |
| Linux | Linux | 5.16 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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