Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.21 % · percentile 11 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc A NULL sock pointer is passed into l2cap_sock_alloc() when it is called from l2cap_sock_new_connection_cb() and the error handling paths should also be aware of it. Seemingly a more elegant solution would be to swap bt_sock_alloc() and l2cap_chan_create() calls since they are not interdependent to that moment but then l2cap_chan_create() adds the soon to be deallocated and still dummy-initialized channel to the global list accessible by many L2CAP paths. The channel would be removed from the list in short period of time but be a bit more straight-forward here and just check for NULL instead of changing the order of function calls. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- https://git.kernel.org/stable/c/a9a7672fc1a0fe18502493936ccb06413ab89ea6
- https://git.kernel.org/stable/c/8e605f580a97530e5a3583beea458a3fa4cbefbd
- https://git.kernel.org/stable/c/cf601a24120c674cd7c907ea695f92617af6abd0
- https://git.kernel.org/stable/c/297ce7f544aa675b0d136d788cad0710cdfb0785
- https://git.kernel.org/stable/c/245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22
- https://git.kernel.org/stable/c/691218a50c3139f7f57ffa79fb89d932eda9571e
- https://git.kernel.org/stable/c/49c0d55d59662430f1829ae85b969619573d0fa1
- https://git.kernel.org/stable/c/5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2025-5203
- GCVE · GCVE-0-2024-58009
CERT-FR advisories
- CERTFR-2026-AVI-1298 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0605 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0509 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0449 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0307 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0277 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.4.287 < 5.4.291cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.10.231 < 5.10.235cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.15.174 < 5.15.179cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1.120 < 6.1.129cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.6.66 < 6.6.78cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.12.5 < 6.12.14cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.13.3
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected f6ad641646b67f29c7578dcd6c25813c7dcbf51e < a9a7672fc1a0fe18502493936ccb06413ab89ea6 ; affected daa13175a6dea312a76099066cb4cbd4fc959a84 < 8e605f580a97530e5a3583beea458a3fa4cbefbd ; affected a8677028dd5123e5e525b8195483994d87123de4 < cf601a24120c674cd7c907ea695f92617af6abd0 ; affected bb2f2342a6ddf7c04f9aefbbfe86104cd138e629 < 297ce7f544aa675b0d136d788cad0710cdfb0785 ; affected 8ad09ddc63ace3950ac43db6fbfe25b40f589dd6 < 245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22 ; affected 61686abc2f3c2c67822aa23ce6f160467ec83d35 < 691218a50c3139f7f57ffa79fb89d932eda9571e |
| Linux · Linux | affected 6.13 ; unaffected 0 < 6.13 ; unaffected 5.4.291 ≤ 5.4.* ; unaffected 5.10.235 ≤ 5.10.* ; unaffected 5.15.179 ≤ 5.15.* ; unaffected 6.1.129 ≤ 6.1.* |
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 |