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CVE-2026-90039

🗓️ 16 Sep 2026 10:33:38Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 4 Views

NULL deref in Linux kernel NFSD unlock_filesystem by local admin with CAP_SYS_ADMIN causing crash.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-90039 NFSD: Guard admin state-revocation walks with NFSD_NET_UP
16 Sep 202610:33
cvelist
euvd
EUVD
EUVD-2026-80647
16 Sep 202610:33
euvd
nvd
NVD
CVE-2026-90039
16 Sep 202611:17
nvd
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.96.18.51
linuxlinux_kernelRange6.19.07.2.5
linuxlinux_kernelRange7.3.07.3-rc1
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfsd/nfs4proc.c",
      "fs/nfsd/nfs4state.c",
      "fs/nfsd/nfsctl.c"
    ],
    "versions": [
      {
        "version": "1ac3629bf012592cb0320e52a1cceb319a05ad17",
        "lessThan": "104a51265042b4424085741c963cb858ac29ec0b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1ac3629bf012592cb0320e52a1cceb319a05ad17",
        "lessThan": "0146467a2fce845cb6629979c3e9c58dd3d3a6a3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1ac3629bf012592cb0320e52a1cceb319a05ad17",
        "lessThan": "2f3e6638aebc0ab8afb8b4e9816ea9a1cad85378",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfsd/nfs4proc.c",
      "fs/nfsd/nfs4state.c",
      "fs/nfsd/nfsctl.c"
    ],
    "versions": [
      {
        "version": "6.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.51",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.5",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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16 Sep 2026 11:17Current
5.7Medium risk
Vulners AI Score5.7
4