{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-53867", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-09T01:27:17.829Z", "datePublished": "2025-12-24T10:55:25.430Z", "dateUpdated": "2026-01-05T10:33:19.509Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-01-05T10:33:19.509Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix potential use-after-free bug when trimming caps\n\nWhen trimming the caps and just after the 'session->s_cap_lock' is\nreleased in ceph_iterate_session_caps() the cap maybe removed by\nanother thread, and when using the stale cap memory in the callbacks\nit will trigger use-after-free crash.\n\nWe need to check the existence of the cap just after the 'ci->i_ceph_lock'\nbeing acquired. And do nothing if it's already removed."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ceph/caps.c", "fs/ceph/debugfs.c", "fs/ceph/mds_client.c", "fs/ceph/mds_client.h", "fs/ceph/super.h"], "versions": [{"version": "2f2dc053404febedc9c273452d9d518fb31fde72", "lessThan": "2b2515b8095cf2149bef44383a99d5b5677f1831", "status": "affected", "versionType": "git"}, {"version": "2f2dc053404febedc9c273452d9d518fb31fde72", "lessThan": "448875a73e16ba7d81dec9274ce9d33a12d092fb", "status": "affected", "versionType": "git"}, {"version": "2f2dc053404febedc9c273452d9d518fb31fde72", "lessThan": "ae6e935618d99cdba11eab4714092e7e5f13cf7e", "status": "affected", "versionType": "git"}, {"version": "2f2dc053404febedc9c273452d9d518fb31fde72", "lessThan": "aaf67de78807c59c35bafb5003d4fb457c764800", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ceph/caps.c", "fs/ceph/debugfs.c", "fs/ceph/mds_client.c", "fs/ceph/mds_client.h", "fs/ceph/super.h"], "versions": [{"version": "2.6.34", "status": "affected"}, {"version": "0", "lessThan": "2.6.34", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.28", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2.15", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.3.2", "lessThanOrEqual": "6.3.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4", "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": "2.6.34", "versionEndExcluding": "6.1.28"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.34", "versionEndExcluding": "6.2.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.34", "versionEndExcluding": "6.3.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.34", "versionEndExcluding": "6.4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2b2515b8095cf2149bef44383a99d5b5677f1831"}, {"url": "https://git.kernel.org/stable/c/448875a73e16ba7d81dec9274ce9d33a12d092fb"}, {"url": "https://git.kernel.org/stable/c/ae6e935618d99cdba11eab4714092e7e5f13cf7e"}, {"url": "https://git.kernel.org/stable/c/aaf67de78807c59c35bafb5003d4fb457c764800"}], "title": "ceph: fix potential use-after-free bug when trimming caps", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix potential use-after-free bug when trimming caps\n\nWhen trimming the caps and just after the 'session->s_cap_lock' is\nreleased in ceph_iterate_session_caps() the cap maybe removed by\nanother thread, and when using the stale cap memory in the callbacks\nit will trigger use-after-free crash.\n\nWe need to check the existence of the cap just after the 'ci->i_ceph_lock'\nbeing acquired. And do nothing if it's already removed."}], "id": "CVE-2023-53867", "lastModified": "2025-12-29T15:58:56.260", "metrics": {}, "published": "2025-12-24T11:15:51.387", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2b2515b8095cf2149bef44383a99d5b5677f1831"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/448875a73e16ba7d81dec9274ce9d33a12d092fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/aaf67de78807c59c35bafb5003d4fb457c764800"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ae6e935618d99cdba11eab4714092e7e5f13cf7e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: ceph: fix potential use-after-free bug when trimming caps", "id": "2424984", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2424984"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nceph: fix potential use-after-free bug when trimming caps\nWhen trimming the caps and just after the 'session->s_cap_lock' is\nreleased in ceph_iterate_session_caps() the cap maybe removed by\nanother thread, and when using the stale cap memory in the callbacks\nit will trigger use-after-free crash.\nWe need to check the existence of the cap just after the 'ci->i_ceph_lock'\nbeing acquired. And do nothing if it's already removed."], "name": "CVE-2023-53867", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53867\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53867\nhttps://lore.kernel.org/linux-cve-announce/2025122422-CVE-2023-53867-cb3e@gregkh/T"], "threat_severity": "Low"}

{}