wifi: libertas: fix memory leak in helper_firmware_cb()
Summary
| CVE | CVE-2026-68410 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-10 13:20:34 UTC |
| Updated | 2026-08-19 17:20:48 UTC |
| 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. |
Risk And Classification
EPSS: 0.002000000 probability, percentile 0.101900000 (date 2026-08-19)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 6c1f54a04813676c5a2150d99331c8d21f199374 git | Not specified |
| CNA | Linux | Linux | affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06 git | Not specified |
| CNA | Linux | Linux | affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 ce829286f4935f1eb6b5dcb64da02910ce149c76 git | Not specified |
| CNA | Linux | Linux | affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 d497b7566e74920acfe283dd6b2cbf1682890796 git | Not specified |
| CNA | Linux | Linux | affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c git | Not specified |
| CNA | Linux | Linux | affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 6cda91bbb8dc3d22ef0323008a12dcf73a5129da git | Not specified |
| CNA | Linux | Linux | affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 644640cde2fb216e6567de5eee780a38dbc95928 git | Not specified |
| CNA | Linux | Linux | affected 1dfba3060fe7ee03ccec25a91d35085142dfc295 63c2391deefb31e1b801b7f32bd502ca4808639b git | Not specified |
| CNA | Linux | Linux | affected 3.13 | Not specified |
| CNA | Linux | Linux | unaffected 3.13 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.265 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.216 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.183 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.148 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.101 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.42 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.6 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/d497b7566e74920acfe283dd6b2cbf1682890796 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/ce829286f4935f1eb6b5dcb64da02910ce149c76 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/6c1f54a04813676c5a2150d99331c8d21f199374 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/6cda91bbb8dc3d22ef0323008a12dcf73a5129da | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/644640cde2fb216e6567de5eee780a38dbc95928 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/63c2391deefb31e1b801b7f32bd502ca4808639b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.