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CVE record · CVE-2026-80980

net/smc: stop killed, freed and out_of_sync sharing a byte

CVSS 9.8 CriticalCriticalEPSS 0.0068 · 53rd percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:42 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 b286a0651e4404ab96cdfdcdad8a839a26b3751e to before a6efc0f4dbdba6595d89cdaf2d8f26f68be16f0b git
  • affected b286a0651e4404ab96cdfdcdad8a839a26b3751e to before 297e96f38d3e4f1a3b84068950dd5c7a55bbdc7b git
  • affected b286a0651e4404ab96cdfdcdad8a839a26b3751e to before 09a9cbadc05f452405de31012bd2c428b601291a git
  • affected b286a0651e4404ab96cdfdcdad8a839a26b3751e to before 313f79149eb337411c64e2c247234b62ef9a3cb9 git
  • affected b286a0651e4404ab96cdfdcdad8a839a26b3751e to before 2cb7a8d64b7e8ccdc69bbe48fe9c4eaa79c33aec git
  • affected b286a0651e4404ab96cdfdcdad8a839a26b3751e to before db51a8658c11a82432b64999519a269c3aabb447 git
Other versions: unaffected
Linux Linux
  • affected 5.8
  • unaffected before 5.8 semver
  • unaffected 6.1.191 to 6.1.*, inclusive semver
  • unaffected 6.6.160 to 6.6.*, inclusive semver
  • unaffected 6.12.112 to 6.12.*, inclusive 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-2026-80980
CNA
Linux
Tags
Published
11 Sept 2026
Updated
30 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
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CNA (Linux)
  • CISA KEV Not listed.
  • EPSS 0.0068, the 53rd 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.