CVE-2026-46051 (GCVE-0-2026-46051)
Vulnerability from cvelistv5
Published
2026-05-27 12:57
Modified
2026-06-14 17:50
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix soft lockup in retry_aligned_read() When retry_aligned_read() encounters an overlapped stripe, it releases the stripe via raid5_release_stripe() which puts it on the lockless released_stripes llist. In the next raid5d loop iteration, release_stripe_list() drains the stripe onto handle_list (since STRIPE_HANDLE is set by the original IO), but retry_aligned_read() runs before handle_active_stripes() and removes the stripe from handle_list via find_get_stripe() -> list_del_init(). This prevents handle_stripe() from ever processing the stripe to resolve the overlap, causing an infinite loop and soft lockup. Fix this by using __release_stripe() with temp_inactive_list instead of raid5_release_stripe() in the failure path, so the stripe does not go through the released_stripes llist. This allows raid5d to break out of its loop, and the overlap will be resolved when the stripe is eventually processed by handle_stripe().
Impacted products
Vendor Product Version
Linux Linux Version: 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6
Version: 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6
Version: 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6
Version: 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6
Version: 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6
Version: 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6
Version: 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6
Version: 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6
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{
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid5: fix soft lockup in retry_aligned_read()\n\nWhen retry_aligned_read() encounters an overlapped stripe, it releases\nthe stripe via raid5_release_stripe() which puts it on the lockless\nreleased_stripes llist. In the next raid5d loop iteration,\nrelease_stripe_list() drains the stripe onto handle_list (since\nSTRIPE_HANDLE is set by the original IO), but retry_aligned_read()\nruns before handle_active_stripes() and removes the stripe from\nhandle_list via find_get_stripe() -\u003e list_del_init(). This prevents\nhandle_stripe() from ever processing the stripe to resolve the\noverlap, causing an infinite loop and soft lockup.\n\nFix this by using __release_stripe() with temp_inactive_list instead\nof raid5_release_stripe() in the failure path, so the stripe does not\ngo through the released_stripes llist. This allows raid5d to break out\nof its loop, and the overlap will be resolved when the stripe is\neventually processed by handle_stripe()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:50:46.976Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/66df9f30673db66ac35145820a8e24906069ae57"
        },
        {
          "url": "https://git.kernel.org/stable/c/4166d5234fe8b6c3c7f796a6c198605356c5b355"
        },
        {
          "url": "https://git.kernel.org/stable/c/a9055300e07d9d6800264d3c2560e1d0144689ca"
        },
        {
          "url": "https://git.kernel.org/stable/c/09880592f5a9dc73377d6eb5ac123537b5f8df49"
        },
        {
          "url": "https://git.kernel.org/stable/c/80fc6ca2cbde018d52e13f305edcd643911bd94b"
        },
        {
          "url": "https://git.kernel.org/stable/c/1985cb3247e87ff6b8ca4bc5f9626f4f51024507"
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        {
          "url": "https://git.kernel.org/stable/c/883cc33b7af1c448663287f069ef9dfea001e90f"
        },
        {
          "url": "https://git.kernel.org/stable/c/7f9f7c697474268d9ef9479df3ddfe7cdcfbbffc"
        }
      ],
      "title": "md/raid5: fix soft lockup in retry_aligned_read()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46051",
    "datePublished": "2026-05-27T12:57:09.274Z",
    "dateReserved": "2026-05-13T15:03:33.094Z",
    "dateUpdated": "2026-06-14T17:50:46.976Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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