CVE-2026-98247Bluetooth: hci_codec: validate vendor codec count length
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 8961987f3f5fa2f2618e72304d013c8dd5e604a6 builds before 9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8; from 8961987f3f5fa2f2618e72304d013c8dd5e604a6 before a6da782fefae611e68a1aa79644065fc8ca5abcd; from 8961987f3f5fa2f2618e72304d013c8dd5e604a6 before e4cfd3c4299105237458b27958bd7b0aa4c60795; from 8961987f3f5fa2f2618e72304d013c8dd5e604a6 before f49a543d76d48f184b34225d9c0e2fc4cbdea8ec; 8961987f3f5fa2f2618e72304d013c8dd5e604a6 builds before 12a82819b0cada6e304790b1097f8f9006eb6123; from 8961987f3f5fa2f2618e72304d013c8dd5e604a6 before d0795cfd6f655f4de84868a4f4bb41a03f037b3d | CNA record |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.