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CVE-2026-31551

🗓️ 24 Apr 2026 14:33:18Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 6 Views

CVE-2026-31551: Fix static_branch_dec underflow in aql_disable by serialising debugfs writes and using static_branch_enable/disable.

Related
Detection
Affected
Refs
NVD
Vulners
CNA
Node
linuxlinux_kernelRange5.12.15.15.203
OR
linuxlinux_kernelRange5.166.1.167
OR
linuxlinux_kernelRange6.26.6.130
OR
linuxlinux_kernelRange6.76.12.78
OR
linuxlinux_kernelRange6.136.18.20
OR
linuxlinux_kernelRange6.196.19.10
OROROROROROROROR
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/mac80211/debugfs.c"
    ],
    "versions": [
      {
        "version": "e908435e402aff23c9b0b3c59c7cd12b08b681b0",
        "lessThan": "787152497ac763deab16f6f4b7ce79aaeb3eb7e8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e908435e402aff23c9b0b3c59c7cd12b08b681b0",
        "lessThan": "8bb90ff77326c34e75b573b1febdd9586fec5aba",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e908435e402aff23c9b0b3c59c7cd12b08b681b0",
        "lessThan": "256f7d4c11235d0569f78413c41dc89d2dc1557c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e908435e402aff23c9b0b3c59c7cd12b08b681b0",
        "lessThan": "29a1a350afcd28a2150bd73b8bd83eac3480f13e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e908435e402aff23c9b0b3c59c7cd12b08b681b0",
        "lessThan": "5ba05436f15d16ae7ab04b880e8bf8d440be892b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e908435e402aff23c9b0b3c59c7cd12b08b681b0",
        "lessThan": "b24763d32d5b4ada766deca4b42d6766272fef0c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e908435e402aff23c9b0b3c59c7cd12b08b681b0",
        "lessThan": "b94ae8e0d5fe1bdbbfdc3854ff6ce98f6876a828",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/mac80211/debugfs.c"
    ],
    "versions": [
      {
        "version": "5.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.203",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.167",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.130",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.78",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.20",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.10",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 22:10Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.15.5
EPSS0.00015
6