CVE-2026-97422 (GCVE-0-2026-97422)
Vulnerability from cvelistv5
Published
2026-09-24 16:03
Modified
2026-10-30 12:36
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix SMI event cross-process information leak kfd_smi_ev_enabled() skips the suser privilege check when pid=0. PROCESS_START, PROCESS_END, and VMFAULT events are emitted with pid=0 while carrying another process's PID and command name, so any /dev/kfd user in the render group can monitor all GPU workloads. Pass the target process PID into kfd_smi_event_add() for these events so the existing per-client filter restricts delivery to the owning process or CAP_SYS_ADMIN subscribers.
Impacted products
Vendor Product Version
Linux Linux Version: 938a0650aae6275ba8e924685836bdee2c6aa3db
Version: 938a0650aae6275ba8e924685836bdee2c6aa3db
Version: 938a0650aae6275ba8e924685836bdee2c6aa3db
Version: 938a0650aae6275ba8e924685836bdee2c6aa3db
Version: 938a0650aae6275ba8e924685836bdee2c6aa3db
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.1.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.114",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.191",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: fix SMI event cross-process information leak\n\nkfd_smi_ev_enabled() skips the suser privilege check when pid=0.\nPROCESS_START, PROCESS_END, and VMFAULT events are emitted with\npid=0 while carrying another process\u0027s PID and command name, so any\n/dev/kfd user in the render group can monitor all GPU workloads.\n\nPass the target process PID into kfd_smi_event_add() for these events\nso the existing per-client filter restricts delivery to the owning\nprocess or CAP_SYS_ADMIN subscribers."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:36:55.282Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b8151aeb4f34e913315058c192f78fea2223f36a"
        },
        {
          "url": "https://git.kernel.org/stable/c/6fc7ab7fcd7eefb2f371a1d43cf7a860a08f922a"
        },
        {
          "url": "https://git.kernel.org/stable/c/470319a893f616ef661a63e825a8e1b9b6eddb91"
        },
        {
          "url": "https://git.kernel.org/stable/c/5bb2dfa65d8da83e87b2a31c270bc567df69a5ca"
        },
        {
          "url": "https://git.kernel.org/stable/c/92a8dba246d371fe268280e5fd74b0955688e6df"
        }
      ],
      "title": "drm/amdkfd: fix SMI event cross-process information leak",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-97422",
    "datePublished": "2026-09-24T16:03:32.463Z",
    "dateReserved": "2026-09-24T14:53:16.868Z",
    "dateUpdated": "2026-10-30T12:36:55.282Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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