{"id":"CVE-2022-2153","title":"A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ","summary":"A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local a…","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-476","CWE-476"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 5.18","fedora = 36","enterprise_linux = 6.0","enterprise_linux = 7.0","enterprise_linux = 8.0","enterprise_linux = 9.0","debian_linux = 10.0"],"patched":["linux_kernel 5.18"],"published":"2022-08-31","updated":"2026-10-14","sourceUpdated":"2026-10-14T13:17:20.760","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-2153","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2069736","label":"secalert@redhat.com"},{"url":"https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce","label":"secalert@redhat.com"},{"url":"https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a","label":"secalert@redhat.com"},{"url":"https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44","label":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html","label":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html","label":"secalert@redhat.com"},{"url":"https://www.openwall.com/lists/oss-security/2022/06/22/1","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2069736","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html","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://www.openwall.com/lists/oss-security/2022/06/22/1","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":0.00466,"epssPercentile":0.38607,"ingestedAt":"2026-10-14T13:30:58.418Z","slug":"CVE-2022-2153","body":"## Overview\n\nA flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.\n\n## Affected\n\n- `linux_kernel < 5.18`\n- `fedora = 36`\n- `enterprise_linux = 6.0`\n- `enterprise_linux = 7.0`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n- `debian_linux = 10.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 5.18`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}