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CVE-2026-89670 nfsd: hold rcu across localio cmpxchg retry

🗓️ 11 Sep 2026 19:45:55Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 41 Views

Use-after-free in Linux kernel nfsd when RCU not held across cmpxchg retry in nfsd_open_local_fh.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-89670
12 Sep 202619:08
–circl
cve
CVE
CVE-2026-89670
11 Sep 202619:45
–cve
debiancve
Debian CVE
CVE-2026-89670
11 Sep 202619:45
–debiancve
euvd
EUVD
EUVD-2026-76582
11 Sep 202619:45
–euvd
mageia
Mageia
Updated kernel, drakx-installer-images, kmod-nvidia-current-wopengpu, kmod-xtables-addons & kmod-virtualbox packages fix Security Vulnerabilities
15 Oct 202605:34
–mageia
mageia
Mageia
Updated kernel-linus packages fix security vulnerabilities
25 Oct 202602:36
–mageia
nvd
NVD
CVE-2026-89670
11 Sep 202620:19
–nvd
opensuse
OPENSUSE Linux
kernel-devel-7.2.6-1.1 on GA media (moderate)
20 Sep 202600:00
–opensuse
osv_bell
osv_bell
BELL-CVE-2026-89670
15 Sep 202606:05
–osv_bell
osv_cve
osv_cve
CVE-2026-89670 nfsd: hold rcu across localio cmpxchg retry
11 Sep 202619:45
–osv_cve
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/localio.c"
    ],
    "versions": [
      {
        "version": "e6f7e1487ab528a6c653bd0d42812ff2942846cd",
        "lessThan": "763c0bad872368304db718f79af7e93048885c67",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e6f7e1487ab528a6c653bd0d42812ff2942846cd",
        "lessThan": "559570f91a7d4d199a72105e4980bef791f4cbf1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e6f7e1487ab528a6c653bd0d42812ff2942846cd",
        "lessThan": "58884694978a3d7d111edb433d7fd6a6c5af2f34",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "986a21ace186433e0397a59491646edad8c8d636",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.15.3",
        "lessThan": "6.16",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfsd/localio.c"
    ],
    "versions": [
      {
        "version": "6.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.16",
        "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",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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19 Oct 2026 08:50Current
CVSS 3.17.8
EPSS0.00173
41