{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45848", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.078Z", "datePublished": "2026-05-27T12:15:12.310Z", "dateUpdated": "2026-05-27T12:15:12.310Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:15:12.310Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix NULL sock in aa_sock_file_perm\n\nDeal with the potential that sock and sock-sk can be NULL during\nsocket setup or teardown. This could lead to an oops. The fix for NULL\npointer dereference in __unix_needs_revalidation shows this is at\nleast possible for af_unix sockets. While the fix for af_unix sockets\napplies for newer mediation this is still the fall back path for older\naf_unix mediation and other sockets, so ensure it is covered."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/apparmor/net.c"], "versions": [{"version": "56974a6fcfef69ee0825bd66ed13e92070ac5224", "lessThan": "68538ec34fcb4194c7961dc4eca6f5537fec8067", "status": "affected", "versionType": "git"}, {"version": "56974a6fcfef69ee0825bd66ed13e92070ac5224", "lessThan": "5121b7283f1c46e4c06b88b1dda7b064429d77de", "status": "affected", "versionType": "git"}, {"version": "56974a6fcfef69ee0825bd66ed13e92070ac5224", "lessThan": "c11b7c3280d000376e27ebfed17ec7046699eab4", "status": "affected", "versionType": "git"}, {"version": "56974a6fcfef69ee0825bd66ed13e92070ac5224", "lessThan": "0dc19bca22606f7a61d5988408f74e3ae0ef3486", "status": "affected", "versionType": "git"}, {"version": "56974a6fcfef69ee0825bd66ed13e92070ac5224", "lessThan": "3852eb9a0392eb435c03dcb47d581bcfe6a9a95b", "status": "affected", "versionType": "git"}, {"version": "56974a6fcfef69ee0825bd66ed13e92070ac5224", "lessThan": "ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835", "status": "affected", "versionType": "git"}, {"version": "56974a6fcfef69ee0825bd66ed13e92070ac5224", "lessThan": "8a0ededbfcff74598f82f1d4b8ef9db28878b317", "status": "affected", "versionType": "git"}, {"version": "56974a6fcfef69ee0825bd66ed13e92070ac5224", "lessThan": "00b67657535dfea56e84d11492f5c0f61d0af297", "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/net.c"], "versions": [{"version": "4.17", "status": "affected"}, {"version": "0", "lessThan": "4.17", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.252", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.202", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.165", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "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": "4.17", "versionEndExcluding": "5.10.252"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "5.15.202"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/68538ec34fcb4194c7961dc4eca6f5537fec8067"}, {"url": "https://git.kernel.org/stable/c/5121b7283f1c46e4c06b88b1dda7b064429d77de"}, {"url": "https://git.kernel.org/stable/c/c11b7c3280d000376e27ebfed17ec7046699eab4"}, {"url": "https://git.kernel.org/stable/c/0dc19bca22606f7a61d5988408f74e3ae0ef3486"}, {"url": "https://git.kernel.org/stable/c/3852eb9a0392eb435c03dcb47d581bcfe6a9a95b"}, {"url": "https://git.kernel.org/stable/c/ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835"}, {"url": "https://git.kernel.org/stable/c/8a0ededbfcff74598f82f1d4b8ef9db28878b317"}, {"url": "https://git.kernel.org/stable/c/00b67657535dfea56e84d11492f5c0f61d0af297"}], "title": "apparmor: fix NULL sock in aa_sock_file_perm", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix NULL sock in aa_sock_file_perm\n\nDeal with the potential that sock and sock-sk can be NULL during\nsocket setup or teardown. This could lead to an oops. The fix for NULL\npointer dereference in __unix_needs_revalidation shows this is at\nleast possible for af_unix sockets. While the fix for af_unix sockets\napplies for newer mediation this is still the fall back path for older\naf_unix mediation and other sockets, so ensure it is covered."}], "id": "CVE-2026-45848", "lastModified": "2026-05-27T14:48:31.480", "metrics": {}, "published": "2026-05-27T14:16:56.700", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/00b67657535dfea56e84d11492f5c0f61d0af297"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0dc19bca22606f7a61d5988408f74e3ae0ef3486"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3852eb9a0392eb435c03dcb47d581bcfe6a9a95b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5121b7283f1c46e4c06b88b1dda7b064429d77de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/68538ec34fcb4194c7961dc4eca6f5537fec8067"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8a0ededbfcff74598f82f1d4b8ef9db28878b317"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c11b7c3280d000376e27ebfed17ec7046699eab4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: apparmor: fix NULL sock in aa_sock_file_perm", "id": "2482188", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482188"}, "csaw": false, "cwe": "CWE-476", "details": ["A flaw was found in the Linux kernel's AppArmor security module. This vulnerability allows a local attacker to trigger a NULL pointer dereference during socket setup or teardown operations. This can lead to a kernel 'oops', resulting in a system crash and a Denial of Service (DoS)."], "name": "CVE-2026-45848", "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": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-45848\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45848\nhttps://lore.kernel.org/linux-cve-announce/2026052707-CVE-2026-45848-b001@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[56974a6fcfef69ee0825bd66ed13e92070ac5224,68538ec34fcb4194c7961dc4eca6f5537fec8067)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[56974a6fcfef69ee0825bd66ed13e92070ac5224,5121b7283f1c46e4c06b88b1dda7b064429d77de)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[56974a6fcfef69ee0825bd66ed13e92070ac5224,c11b7c3280d000376e27ebfed17ec7046699eab4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[56974a6fcfef69ee0825bd66ed13e92070ac5224,0dc19bca22606f7a61d5988408f74e3ae0ef3486)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[56974a6fcfef69ee0825bd66ed13e92070ac5224,3852eb9a0392eb435c03dcb47d581bcfe6a9a95b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[56974a6fcfef69ee0825bd66ed13e92070ac5224,ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[56974a6fcfef69ee0825bd66ed13e92070ac5224,8a0ededbfcff74598f82f1d4b8ef9db28878b317)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[56974a6fcfef69ee0825bd66ed13e92070ac5224,00b67657535dfea56e84d11492f5c0f61d0af297)"}}], "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": "generic", "value": "4.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.17)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.252,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.202,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.165,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.128,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.14,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.4,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "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": "2026-05-27T16:00:08.715158+00:00", "updated": "2026-05-27T16:30:36.350982+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-476"]}