FKIE_CVE-2026-72362

Vulnerability from fkie_nvd - Published: 2026-08-15 06:22 - Updated: 2026-08-17 06:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry() The page-table walk framework may pass a NULL *child pointer for unpopulated entries. xe_pt_zap_ptes_entry() called container_of(*child) before checking for NULL, then dereferenced the result, causing a crash. Move the container_of() call after a NULL guard, so the function returns early instead of proceeding with an invalid pointer. XE_WARN_ON is kept to help root cause the issue, but we now bail instead of crashing the driver. v2: Comment that triggering XE_WARN_ON is unexpected behavior (Matt Brost) (cherry picked from commit b9297d19d9df5d4b6c994648570c5dcd1cac68ff)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3feeb667197bd58a17f4edfdbcad249ffcb3c864
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/78b1074966d290d4517f42bc81e13c4349368d12
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d94b9922b2ae5ee6e900f8da0bd537b251c6110c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff330ce16c846b70164ff0eb544c81219d4c5c08
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_pt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ff330ce16c846b70164ff0eb544c81219d4c5c08",
              "status": "affected",
              "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
              "versionType": "git"
            },
            {
              "lessThan": "78b1074966d290d4517f42bc81e13c4349368d12",
              "status": "affected",
              "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
              "versionType": "git"
            },
            {
              "lessThan": "d94b9922b2ae5ee6e900f8da0bd537b251c6110c",
              "status": "affected",
              "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
              "versionType": "git"
            },
            {
              "lessThan": "3feeb667197bd58a17f4edfdbcad249ffcb3c864",
              "status": "affected",
              "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_pt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "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\ndrm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry()\n\nThe page-table walk framework may pass a NULL *child pointer for\nunpopulated entries. xe_pt_zap_ptes_entry() called container_of(*child)\nbefore checking for NULL, then dereferenced the result, causing a crash.\n\nMove the container_of() call after a NULL guard, so the function returns\nearly instead of proceeding with an invalid pointer. XE_WARN_ON is kept\nto help root cause the issue, but we now bail instead of crashing the\ndriver.\n\nv2: Comment that triggering XE_WARN_ON is unexpected behavior (Matt Brost)\n\n(cherry picked from commit b9297d19d9df5d4b6c994648570c5dcd1cac68ff)"
    }
  ],
  "id": "CVE-2026-72362",
  "lastModified": "2026-08-17T06:18:40.400",
  "metrics": {},
  "published": "2026-08-15T06:22:09.627",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3feeb667197bd58a17f4edfdbcad249ffcb3c864"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/78b1074966d290d4517f42bc81e13c4349368d12"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d94b9922b2ae5ee6e900f8da0bd537b251c6110c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ff330ce16c846b70164ff0eb544c81219d4c5c08"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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