{"id":"CVE-2026-98194","state":"PUBLISHED","title":"wifi: libertas_tf: fix UAF in lbtf_free_adapter()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas_tf: fix UAF in lbtf_free_adapter()\n\nlbtf_free_adapter() calls lbtf_free_cmd_buffer() to free the command\nbuffers before calling timer_delete_sync() to wait for the command\ntimer callback.  If the timer callback (command_timer_fn) is already\nrunning when lbtf_free_cmd_buffer() frees the command array, the\ncallback dereferences priv->cur_cmd->cmdbuf which points to freed\nmemory.\n\nSwap the order so that timer_delete_sync() runs first, ensuring any\nin-flight callback has completed before the command buffers are freed.","publishedAt":"2026-10-06T08:44:34.253Z","updatedAt":"2026-10-19T09:15:25.503Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"3fb3663260ec396f86b733aab9f81fac6669d2fa","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"b4745d6063758c681d33affca9733bbd356b6ea1","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"2b99bfc5a127ce8cd6a887d82815fc2e712f365b","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"e82536aad653e27c8ca7a8e0f6f816bc3f853ec3","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"04c837d413dc11a91e0275b08b9e35a6c111175e","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"bbb9a0ab96d44a64529aafc7a16de460a1712f6a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas_tf/main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.28","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.28","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","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_tf/main.c"]}],"references":["https://git.kernel.org/stable/c/3fb3663260ec396f86b733aab9f81fac6669d2fa","https://git.kernel.org/stable/c/f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6","https://git.kernel.org/stable/c/b4745d6063758c681d33affca9733bbd356b6ea1","https://git.kernel.org/stable/c/41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46","https://git.kernel.org/stable/c/2b99bfc5a127ce8cd6a887d82815fc2e712f365b","https://git.kernel.org/stable/c/e82536aad653e27c8ca7a8e0f6f816bc3f853ec3","https://git.kernel.org/stable/c/04c837d413dc11a91e0275b08b9e35a6c111175e","https://git.kernel.org/stable/c/bbb9a0ab96d44a64529aafc7a16de460a1712f6a"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98194.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98194","state":"PUBLISHED","datePublished":"2026-10-06T08:44:34.253Z","dateUpdated":"2026-10-19T09:15:25.503Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.324Z"},"containers":{"cna":{"title":"wifi: libertas_tf: fix UAF in lbtf_free_adapter()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas_tf: fix UAF in lbtf_free_adapter()\n\nlbtf_free_adapter() calls lbtf_free_cmd_buffer() to free the command\nbuffers before calling timer_delete_sync() to wait for the command\ntimer callback.  If the timer callback (command_timer_fn) is already\nrunning when lbtf_free_cmd_buffer() frees the command array, the\ncallback dereferences priv->cur_cmd->cmdbuf which points to freed\nmemory.\n\nSwap the order so that timer_delete_sync() runs first, ensuring any\nin-flight callback has completed before the command buffers are freed."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"3fb3663260ec396f86b733aab9f81fac6669d2fa","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"b4745d6063758c681d33affca9733bbd356b6ea1","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"2b99bfc5a127ce8cd6a887d82815fc2e712f365b","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"e82536aad653e27c8ca7a8e0f6f816bc3f853ec3","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"04c837d413dc11a91e0275b08b9e35a6c111175e","versionType":"git"},{"version":"06b16ae5319251c26377afcb401e46056d5673f4","status":"affected","lessThan":"bbb9a0ab96d44a64529aafc7a16de460a1712f6a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/libertas_tf/main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.28","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.28","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","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_tf/main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/3fb3663260ec396f86b733aab9f81fac6669d2fa"},{"url":"https://git.kernel.org/stable/c/f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6"},{"url":"https://git.kernel.org/stable/c/b4745d6063758c681d33affca9733bbd356b6ea1"},{"url":"https://git.kernel.org/stable/c/41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46"},{"url":"https://git.kernel.org/stable/c/2b99bfc5a127ce8cd6a887d82815fc2e712f365b"},{"url":"https://git.kernel.org/stable/c/e82536aad653e27c8ca7a8e0f6f816bc3f853ec3"},{"url":"https://git.kernel.org/stable/c/04c837d413dc11a91e0275b08b9e35a6c111175e"},{"url":"https://git.kernel.org/stable/c/bbb9a0ab96d44a64529aafc7a16de460a1712f6a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:15:25.503Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.28","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}