CVE-2025-40146

{
  "id": "CVE-2025-40146",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-11-12T11:15:44.480",
  "lastModified": "2026-10-19T21:10:00.160",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-mq: fix potential deadlock while nr_requests grown\n\nAllocate and free sched_tags while queue is freezed can deadlock[1],\nthis is a long term problem, hence allocate memory before freezing\nqueue and free memory after queue is unfreezed.\n\n[1] https://lore.kernel.org/all/[email protected]/"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nblk-mq: solucionar un interbloqueo potencial mientras nr_requests crece\n\nAsignar y liberar sched_tags mientras la cola está congelada puede causar un interbloqueo[1], este es un problema a largo plazo, por lo tanto, asignar memoria antes de congelar la cola y liberar memoria después de que la cola sea descongelada.\n\n[1] https://lore.kernel.org/all/[email protected]/"
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "block/blk-mq.c",
            "block/blk-mq.h",
            "block/blk-sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "e3a2b3f931f59d5284abd13faf8bded726884ffd",
              "lessThan": "8d26acf8477174d8ef690eb6affe13a630f586ae",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e3a2b3f931f59d5284abd13faf8bded726884ffd",
              "lessThan": "b86433721f46d934940528f28d49c1dedb690df1",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "block/blk-mq.c",
            "block/blk-mq.h",
            "block/blk-sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "3.16",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "3.16",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.17.3",
              "lessThanOrEqual": "6.17.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/8d26acf8477174d8ef690eb6affe13a630f586ae",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b86433721f46d934940528f28d49c1dedb690df1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}