CVE-2022-50860

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50860", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:07.135Z", "datePublished": "2025-12-30T12:15:33.859Z", "dateUpdated": "2026-08-05T08:59:49.893Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:59:49.893Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: Fix memleak in alloc_ns()\n\nAfter changes in commit a1bd627b46d1 (\"apparmor: share profile name on\nreplacement\"), the hname member of struct aa_policy is not valid slab\nobject, but a subset of that, it can not be freed by kfree_sensitive(),\nuse aa_policy_destroy() to fix it."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - Reachable only via local AppArmor policy interfaces\u2014mkdir on apparmorfs namespaces or write to .load/.replace\u2014which call alloc_ns through __aa_create_ns/aa_prepare_ns; not via network or adjacent packet paths.\nAC:L - An attacker who can create namespaces can induce GFP_KERNEL failure in alloc_unconfined (e.g. memory pressure/cgroup limits) after aa_policy_init succeeds; once on fail_unconfined the bad kfree_sensitive is deterministic with no race outside attacker control.\nPR:L - Namespace creation requires CAP_MAC_ADMIN via aa_may_manage_policy, but with default unprivileged_userns_apparmor_policy=1 this is obtainable in nested user/AppArmor namespaces (e.g. unprivileged containers), matching prior AppArmor policy-load scoring.\nUI:N - The attacker triggers ns creation and the allocation-failure path themselves through policy admin operations; no separate victim action is required.\nS:U - Impact is confined to host-kernel slab corruption in AppArmor under the same OS security authority, with no VM, IOMMU, or sandbox boundary crossed.\nC:H - kfree_sensitive on the interior hname pointer performs an out-of-bounds zero (ksize returns the full slab object size from a mid-object pointer) and an invalid free, yielding slab corruption that can be leveraged for arbitrary read primitives.\nI:H - The same path is an out-of-bounds write via memzero_explicit plus an invalid free of a non-object-start pointer, which corrupts SLUB freelist metadata and is a well-established route to arbitrary write and control-flow hijack.\nA:H - Invalid free and adjacent-object corruption reliably cause kernel oops/BUG/panic under freelist hardening or subsequent realloc use, which is Availability High under kernel CVSS guidance."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/apparmor/policy_ns.c"], "versions": [{"version": "a1bd627b46d169268a0ee5960899fb5be960a317", "lessThan": "9a32aa87a25d800b2c6f47bc2749a7bfd9a486f3", "status": "affected", "versionType": "git"}, {"version": "a1bd627b46d169268a0ee5960899fb5be960a317", "lessThan": "5f509fa740b17307f0cba412485072f632d5af36", "status": "affected", "versionType": "git"}, {"version": "a1bd627b46d169268a0ee5960899fb5be960a317", "lessThan": "0250cf8d37bb5201a117177afd24dc73a1c81657", "status": "affected", "versionType": "git"}, {"version": "a1bd627b46d169268a0ee5960899fb5be960a317", "lessThan": "12695b4b76d437b9c0182a6f7dfb2248013a9daf", "status": "affected", "versionType": "git"}, {"version": "a1bd627b46d169268a0ee5960899fb5be960a317", "lessThan": "e9e6fa49dbab6d84c676666f3fe7d360497fd65b", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/apparmor/policy_ns.c"], "versions": [{"version": "4.13", "status": "affected"}, {"version": "0", "lessThan": "4.13", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.163", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.86", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.2", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "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": "4.13", "versionEndExcluding": "5.10.163"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "5.15.86"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "6.0.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "6.1.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "6.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/9a32aa87a25d800b2c6f47bc2749a7bfd9a486f3"}, {"url": "https://git.kernel.org/stable/c/5f509fa740b17307f0cba412485072f632d5af36"}, {"url": "https://git.kernel.org/stable/c/0250cf8d37bb5201a117177afd24dc73a1c81657"}, {"url": "https://git.kernel.org/stable/c/12695b4b76d437b9c0182a6f7dfb2248013a9daf"}, {"url": "https://git.kernel.org/stable/c/e9e6fa49dbab6d84c676666f3fe7d360497fd65b"}], "title": "apparmor: Fix memleak in alloc_ns()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["security/apparmor/policy_ns.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "9a32aa87a25d800b2c6f47bc2749a7bfd9a486f3", "status": "affected", "version": "a1bd627b46d169268a0ee5960899fb5be960a317", "versionType": "git"}, {"lessThan": "5f509fa740b17307f0cba412485072f632d5af36", "status": "affected", "version": "a1bd627b46d169268a0ee5960899fb5be960a317", "versionType": "git"}, {"lessThan": "0250cf8d37bb5201a117177afd24dc73a1c81657", "status": "affected", "version": "a1bd627b46d169268a0ee5960899fb5be960a317", "versionType": "git"}, {"lessThan": "12695b4b76d437b9c0182a6f7dfb2248013a9daf", "status": "affected", "version": "a1bd627b46d169268a0ee5960899fb5be960a317", "versionType": "git"}, {"lessThan": "e9e6fa49dbab6d84c676666f3fe7d360497fd65b", "status": "affected", "version": "a1bd627b46d169268a0ee5960899fb5be960a317", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["security/apparmor/policy_ns.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.13"}, {"lessThan": "4.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.163", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.86", "versionType": "semver"}, {"lessThanOrEqual": "6.0.*", "status": "unaffected", "version": "6.0.16", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.2", "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\napparmor: Fix memleak in alloc_ns()\n\nAfter changes in commit a1bd627b46d1 (\"apparmor: share profile name on\nreplacement\"), the hname member of struct aa_policy is not valid slab\nobject, but a subset of that, it can not be freed by kfree_sensitive(),\nuse aa_policy_destroy() to fix it."}], "id": "CVE-2022-50860", "lastModified": "2026-08-04T10:18:24.577", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2025-12-30T13:16:00.787", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0250cf8d37bb5201a117177afd24dc73a1c81657"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/12695b4b76d437b9c0182a6f7dfb2248013a9daf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5f509fa740b17307f0cba412485072f632d5af36"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9a32aa87a25d800b2c6f47bc2749a7bfd9a486f3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e9e6fa49dbab6d84c676666f3fe7d360497fd65b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: apparmor: Fix memleak in alloc_ns()", "id": "2426245", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2426245"}, "csaw": false, "details": ["No description is available for this CVE."], "name": "CVE-2022-50860", "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"}], "public_date": "2025-12-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50860\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50860\nhttps://lore.kernel.org/linux-cve-announce/2025123047-CVE-2022-50860-9d3a@gregkh/T"]}

{}