CVE-2023-53380 (GCVE-0-2023-53380)
Vulnerability from cvelistv5
Published
2025-09-18 13:33
Modified
2025-09-18 13:33
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix null-ptr-deref of mreplace in raid10_sync_request There are two check of 'mreplace' in raid10_sync_request(). In the first check, 'need_replace' will be set and 'mreplace' will be used later if no-Faulty 'mreplace' exists, In the second check, 'mreplace' will be set to NULL if it is Faulty, but 'need_replace' will not be changed accordingly. null-ptr-deref occurs if Faulty is set between two check. Fix it by merging two checks into one. And replace 'need_replace' with 'mreplace' because their values are always the same.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/144c7fd008e0072b0b565f1157eec618de54ca8a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/222cc459d59857ee28a5366dc225ab42b22f9272
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2990e2ece18dd4cca71b3109c80517ad94adb065
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34817a2441747b48e444cb0e05d84e14bc9443da
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/45fa023b3334a7ae6f6c4eb977295804222dfa28
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b5015b97adda6a24dd3e713c63e521ecbeff25c6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f4368a462b1f9a8ecc2fdb09a28c3d4cad302a4f
Impacted products
Vendor Product Version
Linux Linux Version: ee37d7314a32ab6809eacc3389bad0406c69a81f
Version: ee37d7314a32ab6809eacc3389bad0406c69a81f
Version: ee37d7314a32ab6809eacc3389bad0406c69a81f
Version: ee37d7314a32ab6809eacc3389bad0406c69a81f
Version: ee37d7314a32ab6809eacc3389bad0406c69a81f
Version: ee37d7314a32ab6809eacc3389bad0406c69a81f
Version: ee37d7314a32ab6809eacc3389bad0406c69a81f
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   Linux Linux Version: 4.20
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{
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid10: fix null-ptr-deref of mreplace in raid10_sync_request\n\nThere are two check of \u0027mreplace\u0027 in raid10_sync_request(). In the first\ncheck, \u0027need_replace\u0027 will be set and \u0027mreplace\u0027 will be used later if\nno-Faulty \u0027mreplace\u0027 exists, In the second check, \u0027mreplace\u0027 will be\nset to NULL if it is Faulty, but \u0027need_replace\u0027 will not be changed\naccordingly. null-ptr-deref occurs if Faulty is set between two check.\n\nFix it by merging two checks into one. And replace \u0027need_replace\u0027 with\n\u0027mreplace\u0027 because their values are always the same."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-18T13:33:25.383Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/34817a2441747b48e444cb0e05d84e14bc9443da"
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    "datePublished": "2025-09-18T13:33:25.383Z",
    "dateReserved": "2025-09-17T14:54:09.736Z",
    "dateUpdated": "2025-09-18T13:33:25.383Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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  }
}


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