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CVE-2026-22980 nfsd: provide locking for v4_end_grace

🗓️ 23 Jan 2026 15:24:02Reported by LinuxType 
cvelist
 cvelist🔗 www.cve.org👁 26 Views

Fix race in nfsd v4_end_grace using client_tracking_active and grace_end_forced to prevent use-after-free.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-22980
23 Jan 202615:24
–attackerkb
Tenable Nessus		Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1488)
30 Mar 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1494)
30 Mar 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-113 (ALASKERNEL-5.10-2026-113)
19 Feb 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2026-098 (ALASKERNEL-5.15-2026-098)
6 Mar 202600:00
–nessus
Tenable Nessus		Debian dla-4475 : ata-modules-5.10.0-35-armmp-di - security update
11 Feb 202600:00
–nessus
Tenable Nessus		Debian dla-4476 : linux-config-6.1 - security update
11 Feb 202600:00
–nessus
Tenable Nessus		Debian dsa-6126 : ata-modules-6.12.31-armmp-di - security update
9 Feb 202600:00
–nessus
Tenable Nessus		Debian dsa-6127 : affs-modules-6.1.0-37-4kc-malta-di - security update
9 Feb 202600:00
–nessus
Tenable Nessus		EulerOS Virtualization 2.12.1 : kernel (EulerOS-SA-2026-2077)
6 Jun 202600:00
–nessus
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfsd/netns.h",
      "fs/nfsd/nfs4state.c",
      "fs/nfsd/nfsctl.c",
      "fs/nfsd/state.h"
    ],
    "versions": [
      {
        "version": "7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6",
        "lessThan": "ca97360860eb02e3ae4ba42c19b439a0fcecbf06",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6",
        "lessThan": "e8bfa2401d4c51eca6e48e9b33c798828ca9df61",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6",
        "lessThan": "34eb22836e0cdba093baac66599d68c4cd245a9d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6",
        "lessThan": "06600719d0f7a723811c45e4d51f5b742f345309",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6",
        "lessThan": "ba4811c8b433bfa681729ca42cc62b6034f223b0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6",
        "lessThan": "53f07d095e7e680c5e4569a55a019f2c0348cdc6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6",
        "lessThan": "2857bd59feb63fcf40fe4baf55401baea6b4feb4",
        "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/netns.h",
      "fs/nfsd/nfs4state.c",
      "fs/nfsd/nfsctl.c",
      "fs/nfsd/state.h"
    ],
    "versions": [
      {
        "version": "3.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.248",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.198",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.161",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.121",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.66",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.6",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 21:57Current
CVSS 3.17.8
EPSS0.00023
nfs daemonv4 end gracelockingrace conditionuse after freeshutdownlaundromatupcallclient trackinggrace end forced
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