CVE-2026-31436 (GCVE-0-2026-31436)
Vulnerability from cvelistv5
Published
2026-04-22 13:53
Modified
2026-04-27 14:03
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc() At the end of this function, d is the traversal cursor of flist, but the code completes found instead. This can lead to issues such as NULL pointer dereferences, double completion, or descriptor leaks. Fix this by completing d instead of found in the final list_for_each_entry_safe() loop.
References
Impacted products
Vendor Product Version
Linux Linux Version: aa8d18becc0c14aa3eb46d6d1b81450446e11b87
Version: aa8d18becc0c14aa3eb46d6d1b81450446e11b87
Version: aa8d18becc0c14aa3eb46d6d1b81450446e11b87
Version: aa8d18becc0c14aa3eb46d6d1b81450446e11b87
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{
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          "programFiles": [
            "drivers/dma/idxd/submit.c"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc()\n\nAt the end of this function, d is the traversal cursor of flist, but the\ncode completes found instead. This can lead to issues such as NULL pointer\ndereferences, double completion, or descriptor leaks.\n\nFix this by completing d instead of found in the final\nlist_for_each_entry_safe() loop."
        }
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        "dateUpdated": "2026-04-27T14:03:07.926Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "datePublished": "2026-04-22T13:53:35.693Z",
    "dateReserved": "2026-03-09T15:48:24.089Z",
    "dateUpdated": "2026-04-27T14:03:07.926Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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