CVE-2026-68410
wifi: libertas: fix memory leak in helper_firmware_cb()
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ 1dfba3060fe7ee03ccec25a91d35085142dfc295; < 6c1f54a04813676c5a2150d99331c8d21f199374 (affected, git) ≥ 1dfba3060fe7ee03ccec25a91d35085142dfc295; < 7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06 (affected, git) ≥ 1dfba3060fe7ee03ccec25a91d35085142dfc295; < ce829286f4935f1eb6b5dcb64da02910ce149c76 (affected, git) ≥ 1dfba3060fe7ee03ccec25a91d35085142dfc295; < d497b7566e74920acfe283dd6b2cbf1682890796 (affected, git) ≥ 1dfba3060fe7ee03ccec25a91d35085142dfc295; < eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c (affected, git) ≥ 1dfba3060fe7ee03ccec25a91d35085142dfc295; < 6cda91bbb8dc3d22ef0323008a12dcf73a5129da (affected, git) ≥ 1dfba3060fe7ee03ccec25a91d35085142dfc295; < 644640cde2fb216e6567de5eee780a38dbc95928 (affected, git) ≥ 1dfba3060fe7ee03ccec25a91d35085142dfc295; < 63c2391deefb31e1b801b7f32bd502ca4808639b (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
3.13 (affected) ≥ 0; < 3.13 (unaffected, semver) ≥ 5.10.265; ≤ 5.10.* (unaffected, semver) ≥ 5.15.216; ≤ 5.15.* (unaffected, semver) ≥ 6.1.183; ≤ 6.1.* (unaffected, semver) ≥ 6.6.148; ≤ 6.6.* (unaffected, semver) ≥ 6.12.101; ≤ 6.12.* (unaffected, semver) ≥ 6.18.42; ≤ 6.18.* (unaffected, semver) ≥ 7.1.6; ≤ 7.1.* (unaffected, semver) ≥ 7.2; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/6c1f54a04813676c5a2150d99331c8d21f199374CNA: Linux
- https://git.kernel.org/stable/c/7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06CNA: Linux
- https://git.kernel.org/stable/c/ce829286f4935f1eb6b5dcb64da02910ce149c76CNA: Linux
- https://git.kernel.org/stable/c/d497b7566e74920acfe283dd6b2cbf1682890796CNA: Linux
- https://git.kernel.org/stable/c/eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55cCNA: Linux
- https://git.kernel.org/stable/c/6cda91bbb8dc3d22ef0323008a12dcf73a5129daCNA: Linux
- https://git.kernel.org/stable/c/644640cde2fb216e6567de5eee780a38dbc95928CNA: Linux
- https://git.kernel.org/stable/c/63c2391deefb31e1b801b7f32bd502ca4808639bCNA: Linux
For agents and automation
Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.
Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.
Endpoints and access details
https://api.y2.dev/api/v2/cyber/cveshttps://api.y2.dev/api/v2/cyber/cves/{cveId}
A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.
For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.