CVE-2026-98194

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98194", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.324Z", "datePublished": "2026-10-06T08:44:34.253Z", "dateUpdated": "2026-10-19T09:15:25.503Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:15:25.503Z"}, "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": [{"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_tf/main.c"], "versions": [{"version": "06b16ae5319251c26377afcb401e46056d5673f4", "lessThan": "3fb3663260ec396f86b733aab9f81fac6669d2fa", "status": "affected", "versionType": "git"}, {"version": "06b16ae5319251c26377afcb401e46056d5673f4", "lessThan": "f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6", "status": "affected", "versionType": "git"}, {"version": "06b16ae5319251c26377afcb401e46056d5673f4", "lessThan": "b4745d6063758c681d33affca9733bbd356b6ea1", "status": "affected", "versionType": "git"}, {"version": "06b16ae5319251c26377afcb401e46056d5673f4", "lessThan": "41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46", "status": "affected", "versionType": "git"}, {"version": "06b16ae5319251c26377afcb401e46056d5673f4", "lessThan": "2b99bfc5a127ce8cd6a887d82815fc2e712f365b", "status": "affected", "versionType": "git"}, {"version": "06b16ae5319251c26377afcb401e46056d5673f4", "lessThan": "e82536aad653e27c8ca7a8e0f6f816bc3f853ec3", "status": "affected", "versionType": "git"}, {"version": "06b16ae5319251c26377afcb401e46056d5673f4", "lessThan": "04c837d413dc11a91e0275b08b9e35a6c111175e", "status": "affected", "versionType": "git"}, {"version": "06b16ae5319251c26377afcb401e46056d5673f4", "lessThan": "bbb9a0ab96d44a64529aafc7a16de460a1712f6a", "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_tf/main.c"], "versions": [{"version": "2.6.28", "status": "affected"}, {"version": "0", "lessThan": "2.6.28", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.271", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.222", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.54", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.8", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "2.6.28", "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"}]}]}], "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"}], "title": "wifi: libertas_tf: fix UAF in lbtf_free_adapter()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/marvell/libertas_tf/main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3fb3663260ec396f86b733aab9f81fac6669d2fa", "status": "affected", "version": "06b16ae5319251c26377afcb401e46056d5673f4", "versionType": "git"}, {"lessThan": "f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6", "status": "affected", "version": "06b16ae5319251c26377afcb401e46056d5673f4", "versionType": "git"}, {"lessThan": "b4745d6063758c681d33affca9733bbd356b6ea1", "status": "affected", "version": "06b16ae5319251c26377afcb401e46056d5673f4", "versionType": "git"}, {"lessThan": "41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46", "status": "affected", "version": "06b16ae5319251c26377afcb401e46056d5673f4", "versionType": "git"}, {"lessThan": "2b99bfc5a127ce8cd6a887d82815fc2e712f365b", "status": "affected", "version": "06b16ae5319251c26377afcb401e46056d5673f4", "versionType": "git"}, {"lessThan": "e82536aad653e27c8ca7a8e0f6f816bc3f853ec3", "status": "affected", "version": "06b16ae5319251c26377afcb401e46056d5673f4", "versionType": "git"}, {"lessThan": "04c837d413dc11a91e0275b08b9e35a6c111175e", "status": "affected", "version": "06b16ae5319251c26377afcb401e46056d5673f4", "versionType": "git"}, {"lessThan": "bbb9a0ab96d44a64529aafc7a16de460a1712f6a", "status": "affected", "version": "06b16ae5319251c26377afcb401e46056d5673f4", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/marvell/libertas_tf/main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.28"}, {"lessThan": "2.6.28", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.271", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.222", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.189", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.54", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-98194", "lastModified": "2026-10-19T10:18:19.813", "metrics": {}, "published": "2026-10-06T09:18:04.800", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/04c837d413dc11a91e0275b08b9e35a6c111175e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2b99bfc5a127ce8cd6a887d82815fc2e712f365b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3fb3663260ec396f86b733aab9f81fac6669d2fa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b4745d6063758c681d33affca9733bbd356b6ea1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bbb9a0ab96d44a64529aafc7a16de460a1712f6a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e82536aad653e27c8ca7a8e0f6f816bc3f853ec3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: libertas_tf: fix UAF in lbtf_free_adapter()", "id": "2546498", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546498"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel's Libertas TF wireless driver. During device cleanup, the driver releases command memory buffers before stopping the associated timer callback. This timing issue creates a use-after-free condition where an active timer callback accesses released memory, allowing a local user to trigger a kernel crash resulting in a Denial of Service (DoS)."], "name": "CVE-2026-98194", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98194\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98194\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98194.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[06b16ae5319251c26377afcb401e46056d5673f4,3fb3663260ec396f86b733aab9f81fac6669d2fa)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[06b16ae5319251c26377afcb401e46056d5673f4,f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[06b16ae5319251c26377afcb401e46056d5673f4,b4745d6063758c681d33affca9733bbd356b6ea1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[06b16ae5319251c26377afcb401e46056d5673f4,41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[06b16ae5319251c26377afcb401e46056d5673f4,2b99bfc5a127ce8cd6a887d82815fc2e712f365b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[06b16ae5319251c26377afcb401e46056d5673f4,e82536aad653e27c8ca7a8e0f6f816bc3f853ec3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[06b16ae5319251c26377afcb401e46056d5673f4,04c837d413dc11a91e0275b08b9e35a6c111175e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[06b16ae5319251c26377afcb401e46056d5673f4,bbb9a0ab96d44a64529aafc7a16de460a1712f6a)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.28"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.28)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.271,6.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.222,6.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.189,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.54,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.8,8.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc4,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-06T12:30:10.406839+00:00", "updated": "2026-10-09T04:30:17.799480+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}