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CVE record · CVE-2026-89766

pidfd: hold exec_update_lock around namespace ioctl

No CVSS scoreEPSS 0.0019 · 8th percentile

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:47 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 5b08bd408534bfb3a7cf5778da5b27d4e4fffe12 to before bac2f1913a216677c2c220d7bb352dd0330065ca git
  • affected 5b08bd408534bfb3a7cf5778da5b27d4e4fffe12 to before cf24ce48d60225fdbee68ed2058763a1fd172ff3 git
  • affected 5b08bd408534bfb3a7cf5778da5b27d4e4fffe12 to before e89318aa8629969e86548b05e7c19283af3f0efb git
  • affected 5b08bd408534bfb3a7cf5778da5b27d4e4fffe12 to before 9688a46802939da28f00cb40e8129615d5d4af39 git
Other versions: unaffected
Linux Linux
  • affected 6.11
  • unaffected before 6.11 semver
  • unaffected 6.12.112 to 6.12.*, inclusive semver
  • unaffected 6.18.51 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-2026-89766
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

No source has published a CVSS score for this record yet.

  • CISA KEV Not listed.
  • EPSS 0.0019, the 8th 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.