CVE-2025-68747 (GCVE-0-2025-68747)
Vulnerability from cvelistv5
Published
2025-12-24 12:09
Modified
2025-12-24 12:09
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Fix UAF on kernel BO VA nodes If the MMU is down, panthor_vm_unmap_range() might return an error. We expect the page table to be updated still, and if the MMU is blocked, the rest of the GPU should be blocked too, so no risk of accessing physical memory returned to the system (which the current code doesn't cover for anyway). Proceed with the rest of the cleanup instead of bailing out and leaving the va_node inserted in the drm_mm, which leads to UAF when other adjacent nodes are removed from the drm_mm tree.
References
Impacted products
Vendor Product Version
Linux Linux Version: 8a1cc07578bf42d85f008316873d710ff684dd29
Version: 8a1cc07578bf42d85f008316873d710ff684dd29
Version: 8a1cc07578bf42d85f008316873d710ff684dd29
Version: 8a1cc07578bf42d85f008316873d710ff684dd29
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{
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          "programFiles": [
            "drivers/gpu/drm/panthor/panthor_gem.c"
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          "vendor": "Linux",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Fix UAF on kernel BO VA nodes\n\nIf the MMU is down, panthor_vm_unmap_range() might return an error.\nWe expect the page table to be updated still, and if the MMU is blocked,\nthe rest of the GPU should be blocked too, so no risk of accessing\nphysical memory returned to the system (which the current code doesn\u0027t\ncover for anyway).\n\nProceed with the rest of the cleanup instead of bailing out and leaving\nthe va_node inserted in the drm_mm, which leads to UAF when other\nadjacent nodes are removed from the drm_mm tree."
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      "providerMetadata": {
        "dateUpdated": "2025-12-24T12:09:42.925Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "drm/panthor: Fix UAF on kernel BO VA nodes",
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    "cveId": "CVE-2025-68747",
    "datePublished": "2025-12-24T12:09:42.925Z",
    "dateReserved": "2025-12-24T10:30:51.031Z",
    "dateUpdated": "2025-12-24T12:09:42.925Z",
    "state": "PUBLISHED"
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  }
}


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