{"id":"CVE-2022-1184","title":"A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel’s filesystem sub-component","summary":"A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel’s filesystem sub-component. This flaw allows a local attacker with a user privilege to cause a denial of service.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-416","CWE-416"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel > 2.6.12, < 4.9.138","linux_kernel > 4.14, < 4.14.283","linux_kernel > 4.19, < 4.19.247","linux_kernel > 5.4, < 5.4.198","linux_kernel > 5.10, < 5.10.121","linux_kernel > 5.15, < 5.15.46","linux_kernel > 5.17, < 5.17.14","linux_kernel > 5.18, < 5.18.3","linux_kernel = 2.6.12","enterprise_linux = 8.0","enterprise_linux = 9.0","debian_linux = 10.0","debian_linux = 11.0","ubuntu_linux = 14.04","ubuntu_linux = 16.04","ubuntu_linux = 18.04","ubuntu_linux = 20.04"],"patched":["linux_kernel 5.18.3"],"published":"2022-08-29","updated":"2026-10-14","sourceUpdated":"2026-10-14T13:17:17.573","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-1184","references":[{"url":"https://access.redhat.com/security/cve/CVE-2022-1184","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2070205","label":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html","label":"secalert@redhat.com"},{"url":"https://ubuntu.com/security/CVE-2022-1184","label":"secalert@redhat.com"},{"url":"https://www.debian.org/security/2022/dsa-5257","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2022-1184","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2070205","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://ubuntu.com/security/CVE-2022-1184","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2022/dsa-5257","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd"],"epss":0.00289,"epssPercentile":0.19875,"ingestedAt":"2026-10-14T13:30:58.418Z","slug":"CVE-2022-1184","body":"## Overview\n\nA use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel’s filesystem sub-component. This flaw allows a local attacker with a user privilege to cause a denial of service.\n\n## Affected\n\n- `linux_kernel > 2.6.12, < 4.9.138`\n- `linux_kernel > 4.14, < 4.14.283`\n- `linux_kernel > 4.19, < 4.19.247`\n- `linux_kernel > 5.4, < 5.4.198`\n- `linux_kernel > 5.10, < 5.10.121`\n- `linux_kernel > 5.15, < 5.15.46`\n- `linux_kernel > 5.17, < 5.17.14`\n- `linux_kernel > 5.18, < 5.18.3`\n- `linux_kernel = 2.6.12`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n- `debian_linux = 10.0`\n- `debian_linux = 11.0`\n- `ubuntu_linux = 14.04`\n- `ubuntu_linux = 16.04`\n- `ubuntu_linux = 18.04`\n- `ubuntu_linux = 20.04`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 5.18.3`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}