FKIE_CVE-2026-53114

Vulnerability from fkie_nvd - Published: 2026-06-24 17:17 - Updated: 2026-06-24 17:17
Severity
Summary
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. Capture the permission at event-initialization time by storing it in event->hw.flags, and have the NMI handler rely on that cached flag instead of making the call directly.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0584e74fa2b27e9e722cfb5b579f79263df20040
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2783ed2442ce69ae240b787aee6dae801cef7aec
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b0a09142622a994c4f4088c3f61db5da87cfc711
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/events/amd/ibs.c",
            "arch/x86/events/perf_event_flags.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2783ed2442ce69ae240b787aee6dae801cef7aec",
              "status": "affected",
              "version": "50a53b60e141d7e31368a87e222e4dd5597bd4ae",
              "versionType": "git"
            },
            {
              "lessThan": "0584e74fa2b27e9e722cfb5b579f79263df20040",
              "status": "affected",
              "version": "50a53b60e141d7e31368a87e222e4dd5597bd4ae",
              "versionType": "git"
            },
            {
              "lessThan": "b0a09142622a994c4f4088c3f61db5da87cfc711",
              "status": "affected",
              "version": "50a53b60e141d7e31368a87e222e4dd5597bd4ae",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/events/amd/ibs.c",
            "arch/x86/events/perf_event_flags.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "lessThan": "6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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-\u003ehw.flags, and have the NMI handler rely on that cached flag\ninstead of making the call directly."
    }
  ],
  "id": "CVE-2026-53114",
  "lastModified": "2026-06-24T17:17:25.797",
  "metrics": {},
  "published": "2026-06-24T17:17:25.797",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0584e74fa2b27e9e722cfb5b579f79263df20040"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2783ed2442ce69ae240b787aee6dae801cef7aec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b0a09142622a994c4f4088c3f61db5da87cfc711"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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