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CVE record · CVE-2026-89670

nfsd: hold rcu across localio cmpxchg retry

CVSS 7.8 HighEPSS 0.0017 · 6th percentile

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:45 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Linux Linux
  • affected e6f7e1487ab528a6c653bd0d42812ff2942846cd to before 763c0bad872368304db718f79af7e93048885c67 git
  • affected e6f7e1487ab528a6c653bd0d42812ff2942846cd to before 559570f91a7d4d199a72105e4980bef791f4cbf1 git
  • affected e6f7e1487ab528a6c653bd0d42812ff2942846cd to before 58884694978a3d7d111edb433d7fd6a6c5af2f34 git
  • affected 986a21ace186433e0397a59491646edad8c8d636 git
  • affected 6.15.3 to before 6.16 semver
Other versions: unaffected
Linux Linux
  • affected 6.16
  • unaffected before 6.16 semver
  • unaffected 6.18.50 to 6.18.*, inclusive semver
  • unaffected 7.2.4 to 7.2.*, inclusive semver
  • unaffected 7.3 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2026-89670
CNA
Linux
Tags
Published
11 Sept 2026
Updated
19 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.8 High 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CNA (Linux)
  • CISA KEV Not listed.
  • EPSS 0.0017, the 6th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 11 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.