CVE-2023-53292 (GCVE-0-2023-53292)
Vulnerability from cvelistv5
Published
2025-09-16 08:11
Modified
2025-09-16 08:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none After grabbing q->sysfs_lock, q->elevator may become NULL because of elevator switch. Fix the NULL dereference on q->elevator by checking it with lock.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/245165658e1c9f95c0fecfe02b9b1ebd30a1198a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3e977386521b71471e66ec2ba82efdfcc456adf2
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "block/blk-mq.c"
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      "cpeApplicability": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-mq: fix NULL dereference on q-\u003eelevator in blk_mq_elv_switch_none\n\nAfter grabbing q-\u003esysfs_lock, q-\u003eelevator may become NULL because of\nelevator switch.\n\nFix the NULL dereference on q-\u003eelevator by checking it with lock."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-09-16T08:11:24.583Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        {
          "url": "https://git.kernel.org/stable/c/245165658e1c9f95c0fecfe02b9b1ebd30a1198a"
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      ],
      "title": "blk-mq: fix NULL dereference on q-\u003eelevator in blk_mq_elv_switch_none",
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  "cveMetadata": {
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    "cveId": "CVE-2023-53292",
    "datePublished": "2025-09-16T08:11:24.583Z",
    "dateReserved": "2025-09-16T08:09:37.992Z",
    "dateUpdated": "2025-09-16T08:11:24.583Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
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  }
}


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