wifi: libertas: fix memory leak in helper_firmware_cb() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 12 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: fix memory leak in helper_firmware_cb() helper_firmware_cb() neglects to free the single-stage firmware image after a successful async load, leading to a memory leak in the USB firmware-download path. Fix this memory leak by calling release_firmware() immediately after lbs_fw_loaded() returns. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in the current wireless tree. An x86_64 allyesconfig build showed no new warnings. As we do not have compatible Libertas USB hardware for exercising this firmware-download path, no runtime testing was able to be performed.
References
- https://git.kernel.org/stable/c/6c1f54a04813676c5a2150d99331c8d21f199374
- https://git.kernel.org/stable/c/7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06
- https://git.kernel.org/stable/c/ce829286f4935f1eb6b5dcb64da02910ce149c76
- https://git.kernel.org/stable/c/d497b7566e74920acfe283dd6b2cbf1682890796
- https://git.kernel.org/stable/c/eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c
- https://git.kernel.org/stable/c/6cda91bbb8dc3d22ef0323008a12dcf73a5129da
- https://git.kernel.org/stable/c/644640cde2fb216e6567de5eee780a38dbc95928
- https://git.kernel.org/stable/c/63c2391deefb31e1b801b7f32bd502ca4808639b
European references
- ENISA EUVD · EUVD-2026-55596
- GCVE · GCVE-0-2026-68410
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1255 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1231 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1202 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1164 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1069 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 < 6c1f54a04813676c5a2150d99331c8d21f199374 ; affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 < 7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06 ; affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 < ce829286f4935f1eb6b5dcb64da02910ce149c76 ; affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 < d497b7566e74920acfe283dd6b2cbf1682890796 ; affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 < eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c ; affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 < 6cda91bbb8dc3d22ef0323008a12dcf73a5129da |
| Linux · Linux | affected 3.13 ; unaffected 0 < 3.13 ; unaffected 5.10.265 ≤ 5.10.* ; unaffected 5.15.216 ≤ 5.15.* ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.148 ≤ 6.6.* |
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 |