{"id":"CVE-2026-53114","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-53114","generatedAt":"2026-10-28T10:46:42.790Z","title":"In the Linux kernel, the following vulnerability has been resolved: perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler Calling perf_allow_kernel() from the NMI context is unsafe and could be fatal.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler\n\nCalling perf_allow_kernel() from the NMI context is unsafe and could be\nfatal. Capture the permission at event-initialization time by storing it\nin event->hw.flags, and have the NMI handler rely on that cached flag\ninstead of making the call directly.","published":"2026-06-24T17:17:26.000Z","lastModified":"2026-07-23T21:30:48.000Z","status":"Analyzed","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":[],"affected":["linux/linux kernel"],"epss":{"score":0.00112,"percentile":0.0138,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.11%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/0584e74fa2b27e9e722cfb5b579f79263df20040","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2783ed2442ce69ae240b787aee6dae801cef7aec","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b0a09142622a994c4f4088c3f61db5da87cfc711","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53114","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}