{"id":"CVE-2026-80963","title":"kernel: dm-stats: fix a crash if allocation of per-cpu data fails (CVE-2026-80963)","summary":"A flaw was found in the Linux kernel's `dm-stats` module. This vulnerability occurs when the allocation of per-CPU data fails, which can lead to a null pointer dereference during the subsequent cleanup operation. This issue can cause the s…","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","cvssSource":"vendor","cwe":"CWE-476","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 6","enterprise_linux 7","enterprise_linux 8","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-09-11","updated":"2026-09-14","sourceUpdated":"2026-09-14T17:51:33+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80963.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80963.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80963"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532397"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80963"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80963"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80963.mbox"},{"url":"https://git.kernel.org/stable/c/e45f0b0c41139810ff395ba2f3cfca1460a5b8a6"},{"url":"https://git.kernel.org/stable/c/9805d87d0e26c68ee69da3928e665214d2e2851a"},{"url":"https://git.kernel.org/stable/c/564d17573ef643c13cf6e9015124a205fa65e704"},{"url":"https://git.kernel.org/stable/c/389a50d094e13724f5f45e6d9d6ef734c98ba291"},{"url":"https://git.kernel.org/stable/c/c3f211b7a277dd404b4e7d23095be964b5b46a27"},{"url":"https://git.kernel.org/stable/c/74210fa072960a18bb0eead487585452af722e4f"},{"url":"https://git.kernel.org/stable/c/0c8f7870ed3ebd512f090d7714cc2c556b9e5c75"},{"url":"https://git.kernel.org/stable/c/cc87e26d9cce22061dc21e51e11afef29dbbc36a"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00176,"epssPercentile":0.07433,"ingestedAt":"2026-09-14T15:23:07.455Z","slug":"CVE-2026-80963","body":"## Overview\n\nA flaw was found in the Linux kernel's `dm-stats` module. This vulnerability occurs when the allocation of per-CPU data fails, which can lead to a null pointer dereference during the subsequent cleanup operation. This issue can cause the system to crash, resulting in a Denial of Service (DoS).\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80963.json)\n\n**kernel: dm-stats: fix a crash if allocation of per-cpu data fails** — rated Low by Red Hat. Released 2026-09-11, updated 2026-09-14.\n\nAffected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\nNo fix planned:\n\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\n## Remediation\n\nOut of support scope","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":204219,"id":"CVE-2026-80963","ts":1789490240315,"field":"cvss","old":null,"new":"5.5"},{"seq":204218,"id":"CVE-2026-80963","ts":1789490240315,"field":"severity","old":"none","new":"medium"},{"seq":147277,"id":"CVE-2026-80963","ts":1789270206414,"field":"cvss","old":null,"new":"4.1"},{"seq":147276,"id":"CVE-2026-80963","ts":1789270206414,"field":"severity","old":"none","new":"medium"},{"seq":109038,"id":"CVE-2026-80963","ts":1789183730061,"field":"cvss","old":null,"new":"4.1"},{"seq":109037,"id":"CVE-2026-80963","ts":1789183730061,"field":"severity","old":"none","new":"medium"}]}