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CVE-2025-40146 blk-mq: fix potential deadlock while nr_requests grown

🗓️ 12 Nov 2025 10:23:26Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Fix deadlock in blk-mq by allocating tags before freezing and freeing after unfreezing.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2025-40146
28 Nov 202507:23
circl
CNNVD
Linux kernel 安全漏洞
12 Nov 202500:00
cnnvd
CVE
CVE-2025-40146
12 Nov 202510:23
cve
Debian CVE
CVE-2025-40146
12 Nov 202510:23
debiancve
EUVD
EUVD-2025-124937
12 Nov 202512:30
euvd
Microsoft CVE
blk-mq: fix potential deadlock while nr_requests grown
13 Nov 202501:02
mscve
NVD
CVE-2025-40146
12 Nov 202511:15
nvd
OpenVAS
Ubuntu: Security Advisory (USN-8029-1)
13 Feb 202600:00
openvas
OpenVAS
Ubuntu: Security Advisory (USN-8029-2)
19 Feb 202600:00
openvas
OpenVAS
Ubuntu: Security Advisory (USN-8029-3)
25 Feb 202600:00
openvas
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "block/blk-mq.c",
      "block/blk-mq.h",
      "block/blk-sysfs.c"
    ],
    "versions": [
      {
        "version": "e3a2b3f931f59d5284abd13faf8bded726884ffd",
        "lessThan": "8d26acf8477174d8ef690eb6affe13a630f586ae",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e3a2b3f931f59d5284abd13faf8bded726884ffd",
        "lessThan": "b86433721f46d934940528f28d49c1dedb690df1",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "block/blk-mq.c",
      "block/blk-mq.h",
      "block/blk-sysfs.c"
    ],
    "versions": [
      {
        "version": "3.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17.3",
        "lessThanOrEqual": "6.17.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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