CVE-2026-72362 (GCVE-0-2026-72362)
Vulnerability from cvelistv5
Published
2026-08-15 05:56
Modified
2026-08-17 05:13
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)
Impacted products
Vendor Product Version
Linux Linux Version: dd08ebf6c3525a7ea2186e636df064ea47281987
Version: dd08ebf6c3525a7ea2186e636df064ea47281987
Version: dd08ebf6c3525a7ea2186e636df064ea47281987
Version: dd08ebf6c3525a7ea2186e636df064ea47281987
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          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_pt.c"
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      "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)"
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      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:13:13.207Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/ff330ce16c846b70164ff0eb544c81219d4c5c08"
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        {
          "url": "https://git.kernel.org/stable/c/3feeb667197bd58a17f4edfdbcad249ffcb3c864"
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      "title": "drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72362",
    "datePublished": "2026-08-15T05:56:01.414Z",
    "dateReserved": "2026-08-09T03:40:39.921Z",
    "dateUpdated": "2026-08-17T05:13:13.207Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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