{"id":"CVE-2026-68410","state":"PUBLISHED","title":"wifi: libertas: fix memory leak in helper_firmware_cb()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: fix memory leak in helper_firmware_cb()\n\nhelper_firmware_cb() neglects to free the single-stage firmware image\nafter a successful async load, leading to a memory leak in the USB\nfirmware-download path.\n\nFix this memory leak by calling release_firmware() immediately after\nlbs_fw_loaded() returns.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still present in\nthe current wireless tree.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have\ncompatible Libertas USB hardware for exercising this firmware-download\npath, no runtime testing was able to be performed.","publishedAt":"2026-08-10T12:04:30.194Z","updatedAt":"2026-08-19T16:35:04.634Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"6c1f54a04813676c5a2150d99331c8d21f199374","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"ce829286f4935f1eb6b5dcb64da02910ce149c76","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"d497b7566e74920acfe283dd6b2cbf1682890796","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"6cda91bbb8dc3d22ef0323008a12dcf73a5129da","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"644640cde2fb216e6567de5eee780a38dbc95928","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"63c2391deefb31e1b801b7f32bd502ca4808639b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas/firmware.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.13","versionType":"semver"},{"version":"5.10.265","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas/firmware.c"]}],"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"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/68xxx/CVE-2026-68410.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68410","state":"PUBLISHED","datePublished":"2026-08-10T12:04:30.194Z","dateUpdated":"2026-08-19T16:35:04.634Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-30T09:28:09.390Z"},"containers":{"cna":{"title":"wifi: libertas: fix memory leak in helper_firmware_cb()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: fix memory leak in helper_firmware_cb()\n\nhelper_firmware_cb() neglects to free the single-stage firmware image\nafter a successful async load, leading to a memory leak in the USB\nfirmware-download path.\n\nFix this memory leak by calling release_firmware() immediately after\nlbs_fw_loaded() returns.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still present in\nthe current wireless tree.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have\ncompatible Libertas USB hardware for exercising this firmware-download\npath, no runtime testing was able to be performed."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"6c1f54a04813676c5a2150d99331c8d21f199374","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"ce829286f4935f1eb6b5dcb64da02910ce149c76","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"d497b7566e74920acfe283dd6b2cbf1682890796","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"6cda91bbb8dc3d22ef0323008a12dcf73a5129da","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"644640cde2fb216e6567de5eee780a38dbc95928","versionType":"git"},{"version":"1dfba3060fe7ee03ccec25a91d35085142dfc295","status":"affected","lessThan":"63c2391deefb31e1b801b7f32bd502ca4808639b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas/firmware.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.13","versionType":"semver"},{"version":"5.10.265","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas/firmware.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/6c1f54a04813676c5a2150d99331c8d21f199374"},{"url":"https://git.kernel.org/stable/c/7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06"},{"url":"https://git.kernel.org/stable/c/ce829286f4935f1eb6b5dcb64da02910ce149c76"},{"url":"https://git.kernel.org/stable/c/d497b7566e74920acfe283dd6b2cbf1682890796"},{"url":"https://git.kernel.org/stable/c/eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c"},{"url":"https://git.kernel.org/stable/c/6cda91bbb8dc3d22ef0323008a12dcf73a5129da"},{"url":"https://git.kernel.org/stable/c/644640cde2fb216e6567de5eee780a38dbc95928"},{"url":"https://git.kernel.org/stable/c/63c2391deefb31e1b801b7f32bd502ca4808639b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-19T16:35:04.634Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"5.10.265"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"5.15.216"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"6.1.183"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"7.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}