{"id":"CVE-2026-53114","title":"perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler","summary":"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 per…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 50a53b60e141d7e31368a87e222e4dd5597bd4ae < 2783ed2442ce69ae240b787aee6dae801cef7aec","Linux >= 50a53b60e141d7e31368a87e222e4dd5597bd4ae < 0584e74fa2b27e9e722cfb5b579f79263df20040","Linux >= 50a53b60e141d7e31368a87e222e4dd5597bd4ae < b0a09142622a994c4f4088c3f61db5da87cfc711","Linux 6.14"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:19:17.969891Z"},"published":"2026-06-24","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:24:01.371Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53114","references":[{"url":"https://git.kernel.org/stable/c/2783ed2442ce69ae240b787aee6dae801cef7aec"},{"url":"https://git.kernel.org/stable/c/0584e74fa2b27e9e722cfb5b579f79263df20040"},{"url":"https://git.kernel.org/stable/c/b0a09142622a994c4f4088c3f61db5da87cfc711"}],"tags":["cve.org"],"epss":0.00112,"epssPercentile":0.01403,"ingestedAt":"2026-11-06T16:57:43.293Z","slug":"CVE-2026-53114","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= 50a53b60e141d7e31368a87e222e4dd5597bd4ae < 2783ed2442ce69ae240b787aee6dae801cef7aec`\n- `Linux >= 50a53b60e141d7e31368a87e222e4dd5597bd4ae < 0584e74fa2b27e9e722cfb5b579f79263df20040`\n- `Linux >= 50a53b60e141d7e31368a87e222e4dd5597bd4ae < b0a09142622a994c4f4088c3f61db5da87cfc711`\n- `Linux 6.14`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}