CVE-2023-53320 (GCVE-0-2023-53320)
Vulnerability from cvelistv5
Published
2025-09-16 16:11
Modified
2025-09-16 16:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info() The function mpi3mr_get_all_tgt_info() has four issues: 1) It calculates valid entry length in alltgt_info assuming the header part of the struct mpi3mr_device_map_info would equal to sizeof(u32). The correct size is sizeof(u64). 2) When it calculates the valid entry length kern_entrylen, it excludes one entry by subtracting 1 from num_devices. 3) It copies num_device by calling memcpy(). Substitution is enough. 4) It does not specify the calculated length to sg_copy_from_buffer(). Instead, it specifies the payload length which is larger than the alltgt_info size. It causes "BUG: KASAN: slab-out-of-bounds". Fix the issues by using the correct header size, removing the subtraction from num_devices, replacing the memcpy() with substitution and specifying the correct length to sg_copy_from_buffer().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2f3d3fa5b8ed7d3b147478f42b00b468eeb1ecd2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8ba997b22f2cd5d29aad8c39f6201f7608ed0c04
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fb428a2005fc1260d18b989cc5199f281617f44d
Impacted products
Vendor Product Version
Linux Linux Version: f5e6d5a343761081317c89d23489c93fbafc69ff
Version: f5e6d5a343761081317c89d23489c93fbafc69ff
Version: f5e6d5a343761081317c89d23489c93fbafc69ff
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   Linux Linux Version: 5.19
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{
  "containers": {
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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/scsi/mpi3mr/mpi3mr_app.c"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()\n\nThe function mpi3mr_get_all_tgt_info() has four issues:\n\n1) It calculates valid entry length in alltgt_info assuming the header part\n   of the struct mpi3mr_device_map_info would equal to sizeof(u32).  The\n   correct size is sizeof(u64).\n\n2) When it calculates the valid entry length kern_entrylen, it excludes one\n   entry by subtracting 1 from num_devices.\n\n3) It copies num_device by calling memcpy(). Substitution is enough.\n\n4) It does not specify the calculated length to sg_copy_from_buffer().\n   Instead, it specifies the payload length which is larger than the\n   alltgt_info size. It causes \"BUG: KASAN: slab-out-of-bounds\".\n\nFix the issues by using the correct header size, removing the subtraction\nfrom num_devices, replacing the memcpy() with substitution and specifying\nthe correct length to sg_copy_from_buffer()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-16T16:11:56.323Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()",
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    "cveId": "CVE-2023-53320",
    "datePublished": "2025-09-16T16:11:56.323Z",
    "dateReserved": "2025-09-16T16:08:59.563Z",
    "dateUpdated": "2025-09-16T16:11:56.323Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53320\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-16T17:15:38.050\",\"lastModified\":\"2025-09-17T14:18:55.093\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()\\n\\nThe function mpi3mr_get_all_tgt_info() has four issues:\\n\\n1) It calculates valid entry length in alltgt_info assuming the header part\\n   of the struct mpi3mr_device_map_info would equal to sizeof(u32).  The\\n   correct size is sizeof(u64).\\n\\n2) When it calculates the valid entry length kern_entrylen, it excludes one\\n   entry by subtracting 1 from num_devices.\\n\\n3) It copies num_device by calling memcpy(). Substitution is enough.\\n\\n4) It does not specify the calculated length to sg_copy_from_buffer().\\n   Instead, it specifies the payload length which is larger than the\\n   alltgt_info size. It causes \\\"BUG: KASAN: slab-out-of-bounds\\\".\\n\\nFix the issues by using the correct header size, removing the subtraction\\nfrom num_devices, replacing the memcpy() with substitution and specifying\\nthe correct length to sg_copy_from_buffer().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2f3d3fa5b8ed7d3b147478f42b00b468eeb1ecd2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8ba997b22f2cd5d29aad8c39f6201f7608ed0c04\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fb428a2005fc1260d18b989cc5199f281617f44d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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