CVE-2026-68181

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68181", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.373Z", "datePublished": "2026-08-10T11:59:52.724Z", "dateUpdated": "2026-08-23T12:46:04.934Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-23T12:46:04.934Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmei: bus: access mei_device under device_lock on cleanup\n\nFix couple of problems in mei_cl_bus_dev_release():\n\nmei_cl_flush_queues() is running without lock.\nbus->file_list access after mei_dev_bus_put(bus) can become a\nuse-after-free if this was the last reference to bus.\n\nProtect queues cleanup and WARN traversal by device lock there\nto avoid the concurrent access problems.\nMove WARN traversal before mei_dev_bus_put(bus).\n\nThis file uses bus variable name for mei_device, adjust\ncode of mei_cl_bus_dev_release() to use bus variable too."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/misc/mei/bus.c"], "versions": [{"version": "6f2a6ef86b23a30b92ad57981de537bce67bfa45", "lessThan": "02e3a755086db847d795f2593ebc45e8ee4f1755", "status": "affected", "versionType": "git"}, {"version": "24f4ceeaeee7983c07590149556a0e33efe2ec90", "lessThan": "441559d4c595f839b39f0ab6a4ae628427c2fd9e", "status": "affected", "versionType": "git"}, {"version": "612c8d21ce6e37b73f3106aec7ffa35959d40261", "lessThan": "c88c030a324c9018b77894a19b2564eb66862020", "status": "affected", "versionType": "git"}, {"version": "35e8a426b16adbecae7a4e0e3c00fc8d0273db53", "lessThan": "59dd34854202d9a3faaa87a85205e553fe7150e1", "status": "affected", 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"semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/misc/mei/bus.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.184", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.1.149", "versionEndExcluding": "6.1.184"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.103", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.43", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.2"}, {"vulnerable": true, "criteria": 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{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/misc/mei/bus.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "02e3a755086db847d795f2593ebc45e8ee4f1755", "status": "affected", "version": "6f2a6ef86b23a30b92ad57981de537bce67bfa45", "versionType": "git"}, {"lessThan": "441559d4c595f839b39f0ab6a4ae628427c2fd9e", "status": "affected", "version": "24f4ceeaeee7983c07590149556a0e33efe2ec90", "versionType": "git"}, {"lessThan": "c88c030a324c9018b77894a19b2564eb66862020", "status": "affected", "version": "612c8d21ce6e37b73f3106aec7ffa35959d40261", "versionType": "git"}, {"lessThan": "59dd34854202d9a3faaa87a85205e553fe7150e1", "status": "affected", "version": "35e8a426b16adbecae7a4e0e3c00fc8d0273db53", "versionType": "git"}, {"lessThan": "7cf79e8d682fe93777268f029668ce5e214237fd", "status": "affected", "version": "35e8a426b16adbecae7a4e0e3c00fc8d0273db53", "versionType": "git"}, {"lessThan": "f112ea910e554d58b4b39a4492b7d302f0f4204f", "status": "affected", "version": "35e8a426b16adbecae7a4e0e3c00fc8d0273db53", "versionType": "git"}, {"status": "affected", "version": "2f29dce5a5ae06a7db32e4491d72269329a86eeb", "versionType": "git"}, {"status": "affected", "version": "28de6ca5276a94b0589ae1bf026b89fa0eaf14c0", "versionType": "git"}, {"lessThan": "6.1.184", "status": "affected", "version": "6.1.149", "versionType": "semver"}, {"lessThan": "6.6.148", "status": "affected", "version": "6.6.103", "versionType": "semver"}, {"lessThan": "6.12.101", "status": "affected", "version": "6.12.43", "versionType": "semver"}, {"lessThan": "6.16", "status": "affected", "version": "6.15.11", "versionType": "semver"}, {"lessThan": "6.17", "status": "affected", "version": "6.16.2", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/misc/mei/bus.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.17"}, {"lessThan": "6.17", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.184", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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\nmei: bus: access mei_device under device_lock on cleanup\n\nFix couple of problems in mei_cl_bus_dev_release():\n\nmei_cl_flush_queues() is running without lock.\nbus->file_list access after mei_dev_bus_put(bus) can become a\nuse-after-free if this was the last reference to bus.\n\nProtect queues cleanup and WARN traversal by device lock there\nto avoid the concurrent access problems.\nMove WARN traversal before mei_dev_bus_put(bus).\n\nThis file uses bus variable name for mei_device, adjust\ncode of mei_cl_bus_dev_release() to use bus variable too."}], "id": "CVE-2026-68181", "lastModified": "2026-08-23T13:16:34.900", "metrics": {}, "published": "2026-08-10T13:20:05.110", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/02e3a755086db847d795f2593ebc45e8ee4f1755"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/441559d4c595f839b39f0ab6a4ae628427c2fd9e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/59dd34854202d9a3faaa87a85205e553fe7150e1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7cf79e8d682fe93777268f029668ce5e214237fd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c88c030a324c9018b77894a19b2564eb66862020"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f112ea910e554d58b4b39a4492b7d302f0f4204f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: mei: bus: access mei_device under device_lock on cleanup", "id": "2513469", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513469"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-364", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmei: bus: access mei_device under device_lock on cleanup\nFix couple of problems in mei_cl_bus_dev_release():\nmei_cl_flush_queues() is running without lock.\nbus->file_list access after mei_dev_bus_put(bus) can become a\nuse-after-free if this was the last reference to bus.\nProtect queues cleanup and WARN traversal by device lock there\nto avoid the concurrent access problems.\nMove WARN traversal before mei_dev_bus_put(bus).\nThis file uses bus variable name for mei_device, adjust\ncode of mei_cl_bus_dev_release() to use bus variable too.", "A flaw was found in the Linux kernel's mei bus component. A use-after-free vulnerability exists in the `mei_cl_bus_dev_release()` function. This flaw, caused by improper synchronization during cleanup, could lead to memory corruption and system instability."], "name": "CVE-2026-68181", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68181\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68181\nhttps://lore.kernel.org/linux-cve-announce/2026081007-CVE-2026-68181-31ca@gregkh/T"], "threat_severity": "Moderate"}

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