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CVE-2026-89696

🗓️ 11 Sep 2026 19:46:15Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 4 Views

NULL deref in Linux kernel nfsd when non-SAVEFH ops run after a FOREIGN PUTFH.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-89696 nfsd: block non-SAVEFH ops after FOREIGN PUTFH to prevent NULL deref
11 Sep 202619:46
cvelist
euvd
EUVD
EUVD-2026-76608
11 Sep 202619:46
euvd
nvd
NVD
CVE-2026-89696
11 Sep 202620:19
nvd
ptsecurity
Positive Technologies
PT-2026-90412
11 Sep 202600:00
ptsecurity
Vulners
CNA
Node
OR
linuxlinux_kernelRange5.66.12.109
linuxlinux_kernelRange6.13.06.18.50
linuxlinux_kernelRange6.19.07.2.4
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"
    ],
    "versions": [
      {
        "version": "b9e8638e3d9ed8334f1f7071e081860aac37e83e",
        "lessThan": "35f248bd40b47b229d4999581df45b97daadd977",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b9e8638e3d9ed8334f1f7071e081860aac37e83e",
        "lessThan": "311f7d926630940650447cbd1c932b076b40a6c4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b9e8638e3d9ed8334f1f7071e081860aac37e83e",
        "lessThan": "bf4d338dc8625d70c7f2cb0657d66851a7ac9154",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b9e8638e3d9ed8334f1f7071e081860aac37e83e",
        "lessThan": "c59738a00aa51b16adc1b5ceb7c80877168efb4d",
        "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"
    ],
    "versions": [
      {
        "version": "5.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.109",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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