Vulnerability-Lookup

GHSA-P9WQ-VWQ5-7WV7

Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-06-24 18:32

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53114"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T17:17:25Z",
    "severity": null
  },
  "details": "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": "GHSA-p9wq-vwq5-7wv7",
  "modified": "2026-06-24T18:32:47Z",
  "published": "2026-06-24T18:32:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53114"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0584e74fa2b27e9e722cfb5b579f79263df20040"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2783ed2442ce69ae240b787aee6dae801cef7aec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0a09142622a994c4f4088c3f61db5da87cfc711"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-53114 (GCVE-0-2026-53114)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-06-24 16:30

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: 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.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/2783ed2442ce69ae2…
https://git.kernel.org/stable/c/0584e74fa2b27e9e7…
https://git.kernel.org/stable/c/b0a09142622a994c4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 50a53b60e141d7e31368a87e222e4dd5597bd4ae , < 2783ed2442ce69ae240b787aee6dae801cef7aec (git) Affected: 50a53b60e141d7e31368a87e222e4dd5597bd4ae , < 0584e74fa2b27e9e722cfb5b579f79263df20040 (git) Affected: 50a53b60e141d7e31368a87e222e4dd5597bd4ae , < b0a09142622a994c4f4088c3f61db5da87cfc711 (git)
Linux	Linux	Affected: 6.14 Unaffected: 0 , < 6.14 (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "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"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.33",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.10",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-24T16:30:46.662Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "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"
        }
      ],
      "title": "perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53114",
    "datePublished": "2026-06-24T16:30:46.662Z",
    "dateReserved": "2026-06-09T07:44:35.385Z",
    "dateUpdated": "2026-06-24T16:30:46.662Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-P9WQ-VWQ5-7WV7

CVE-2026-53114 (GCVE-0-2026-53114)

Tags

Sightings

Nomenclature