Bluetooth: L2CAP: Fix potential user-after-free (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.30 % · percentile 23 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Deferred
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling alloc_skb which may release the chan lock and reacquire later which makes it possible that the chan is disconnected in the meantime.
References
- https://git.kernel.org/stable/c/b2fde8cb2a25125111f2144604e0e7c0ebcc4bba
- https://git.kernel.org/stable/c/a6a7d1541fefddf7ca0cfb34c1bff63ff809cc49
- https://git.kernel.org/stable/c/60aaccf16d1e099c16bebfb96428ae762cb528f7
- https://git.kernel.org/stable/c/b8ed41cc04fb74005aa51d17865ca3d022760335
- https://git.kernel.org/stable/c/31a288a4df7f6a28e65da22a4ab2add4a963738e
- https://git.kernel.org/stable/c/64e28ecf44e46de9f01915a4146706a21c3469d2
- https://git.kernel.org/stable/c/994e3e18908f5c4a12d07b44018e6aa85f071048
- https://git.kernel.org/stable/c/df5703348813235874d851934e957c3723d71644
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2023-60427
- GCVE · GCVE-0-2023-54214
CERT-FR advisories
- CERTFR-2026-AVI-1230 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0225 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0170 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0108 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 < b2fde8cb2a25125111f2144604e0e7c0ebcc4bba ; affected a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 < a6a7d1541fefddf7ca0cfb34c1bff63ff809cc49 ; affected a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 < 60aaccf16d1e099c16bebfb96428ae762cb528f7 ; affected a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 < b8ed41cc04fb74005aa51d17865ca3d022760335 ; affected a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 < 31a288a4df7f6a28e65da22a4ab2add4a963738e ; affected a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 < 64e28ecf44e46de9f01915a4146706a21c3469d2 |
| Linux · Linux | affected 3.5 ; unaffected 0 < 3.5 ; unaffected 4.14.308 ≤ 4.14.* ; unaffected 4.19.276 ≤ 4.19.* ; unaffected 5.4.235 ≤ 5.4.* ; unaffected 5.10.173 ≤ 5.10.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |