{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23281","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.992Z","datePublished":"2026-03-25T10:26:41.844Z","dateUpdated":"2026-05-11T22:03:49.865Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:03:49.865Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: fix use-after-free in lbs_free_adapter()\n\nThe lbs_free_adapter() function uses timer_delete() (non-synchronous)\nfor both command_timer and tx_lockup_timer before the structure is\nfreed. This is incorrect because timer_delete() does not wait for\nany running timer callback to complete.\n\nIf a timer callback is executing when lbs_free_adapter() is called,\nthe callback will access freed memory since lbs_cfg_free() frees the\ncontaining structure immediately after lbs_free_adapter() returns.\n\nBoth timer callbacks (lbs_cmd_timeout_handler and lbs_tx_lockup_handler)\naccess priv->driver_lock, priv->cur_cmd, priv->dev, and other fields,\nwhich would all be use-after-free violations.\n\nUse timer_delete_sync() instead to ensure any running timer callback\nhas completed before returning.\n\nThis bug was introduced in commit 8f641d93c38a (\"libertas: detect TX\nlockups and reset hardware\") where del_timer() was used instead of\ndel_timer_sync() in the cleanup path. The command_timer has had the\nsame issue since the driver was first written."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas/main.c"],"versions":[{"version":"954ee164f4f4598afc172c0ec3865d0352e55a0b","lessThan":"b15e0fa7adb4de3a03aee9e6fc4d83e5cf0a65e4","status":"affected","versionType":"git"},{"version":"954ee164f4f4598afc172c0ec3865d0352e55a0b","lessThan":"09f3c30ab3b1371eaf9676a1b8add57bca763083","status":"affected","versionType":"git"},{"version":"954ee164f4f4598afc172c0ec3865d0352e55a0b","lessThan":"3f9dec4a6d95d7f1f5e9e9dfdfa173c053bba8dc","status":"affected","versionType":"git"},{"version":"954ee164f4f4598afc172c0ec3865d0352e55a0b","lessThan":"3c5c818c78b03a1725f3dcd566865c77b48dd3a6","status":"affected","versionType":"git"},{"version":"954ee164f4f4598afc172c0ec3865d0352e55a0b","lessThan":"d0155fe68f31b339961cf2d4f92937d57e9384e6","status":"affected","versionType":"git"},{"version":"954ee164f4f4598afc172c0ec3865d0352e55a0b","lessThan":"ed7d30f90b77f73a47498686ede83f622b7e4f0d","status":"affected","versionType":"git"},{"version":"954ee164f4f4598afc172c0ec3865d0352e55a0b","lessThan":"a9f55b14486426d907459bced5825a25063bd922","status":"affected","versionType":"git"},{"version":"954ee164f4f4598afc172c0ec3865d0352e55a0b","lessThan":"03cc8f90d0537fcd4985c3319b4fafbf2e3fb1f0","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas/main.c"],"versions":[{"version":"2.6.24","status":"affected"},{"version":"0","lessThan":"2.6.24","status":"unaffected","versionType":"semver"},{"version":"5.10.253","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.203","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.167","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.130","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.78","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.17","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.7","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"5.10.253"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.1.167"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.6.130"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.12.78"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.18.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.19.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b15e0fa7adb4de3a03aee9e6fc4d83e5cf0a65e4"},{"url":"https://git.kernel.org/stable/c/09f3c30ab3b1371eaf9676a1b8add57bca763083"},{"url":"https://git.kernel.org/stable/c/3f9dec4a6d95d7f1f5e9e9dfdfa173c053bba8dc"},{"url":"https://git.kernel.org/stable/c/3c5c818c78b03a1725f3dcd566865c77b48dd3a6"},{"url":"https://git.kernel.org/stable/c/d0155fe68f31b339961cf2d4f92937d57e9384e6"},{"url":"https://git.kernel.org/stable/c/ed7d30f90b77f73a47498686ede83f622b7e4f0d"},{"url":"https://git.kernel.org/stable/c/a9f55b14486426d907459bced5825a25063bd922"},{"url":"https://git.kernel.org/stable/c/03cc8f90d0537fcd4985c3319b4fafbf2e3fb1f0"}],"title":"wifi: libertas: fix use-after-free in lbs_free_adapter()","x_generator":{"engine":"bippy-1.2.0"}}}}