CVE-2026-72334
- Source
- https://cve.org/CVERecord?id=CVE-2026-72334
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72334.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-72334
- Downstream
- Published
- 2026-08-15T05:55:43Z
- Modified
- 2026-08-18T03:56:55Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Bluetooth: ISO: fix malformed ISO_END/CONT handling
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: ISO: fix malformed ISO_END/CONT handling
Core specification (Part C vol 4 sec 5.4.5) does not exclude empty ISO_CONT, ISO_END packets. We currently reject them if they are last.
If controller sends malformed sequence
ISO_START -> rx_len = 4, ISO_CONT skb->len 4, ISO_STARTthat ends payload in ISO_CONT, we leak conn->rx_skb. If controller sends too long ISO_END, we panic on skb_put. If controller sends too short ISO_END we accept it.
Fix by marking unfinished ISO_START via conn->rx_skb != NULL. Check skb->len properly before skb_put. Combine the ISO_CONT/END code paths as they require the same initial checks. Reject too short ISO_END packets.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72334.json" }- References
-
- https://git.kernel.org/stable/c/990e65eb9387c4ddfa7f68782b6644c2c35d489f
- https://git.kernel.org/stable/c/e054c1a6ae7310d2815778fddb87da616e11c255
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72334.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-72334
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git