CVE record · CVE-2026-97421

RDMA/umem: Be careful about boundary conditions in ib_umem_find_best_pgsz()

CVSS 7.8 HighEPSS 0.0013 · 2nd percentile

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:03 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
Vendor	Product	Versions
Linux	Linux	affected a40c20dabdf9045270767c75918feb67f0727c89 to before 3014da7587ce006cd08004fd6b257626b314e0a3 git affected a40c20dabdf9045270767c75918feb67f0727c89 to before ddccf6cc3861de2fe60986933bead79220e0d797 git affected a40c20dabdf9045270767c75918feb67f0727c89 to before e9bbb5f5349ef560ff6f0395564f04c3aa664559 git affected a40c20dabdf9045270767c75918feb67f0727c89 to before ae3cf7d2c4d506c5c91746321644e1a08d989e2a git affected a40c20dabdf9045270767c75918feb67f0727c89 to before 5fc5b73109540809b094710fac44da81dd8a3ff8 git affected a40c20dabdf9045270767c75918feb67f0727c89 to before 09ea6837a0434fb4db99528a5055b6d822135dcf git affected 85e40ba1c4a5246b35e91c2ed69d4680426904d7 git affected 59f07434b297e2268f5d5c567db5b09145245cf1 git affected 488229b7729d7becf4c39c5e74fb709fb35115c2 git affected 5.4.73 to before 5.5 semver affected 5.8.17 to before 5.9 semver affected 5.9.2 to before 5.10 semver Other versions: unaffected
Linux	Linux	affected 5.10 unaffected before 5.10 semver unaffected 5.15.222 to 5.15., inclusive semver unaffected 6.1.189 to 6.1., inclusive semver unaffected 6.6.158 to 6.6., inclusive semver unaffected 6.12.111 to 6.12., inclusive semver unaffected 6.18.53 to 6.18., inclusive semver unaffected 7.2 to , inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-97421
CNA: Linux
Tags: Linux kernel
Published: 24 Sept 2026
Updated: 3 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

Score	Rating	CVSS	Vector	Source
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 0.0013, the 2nd percentile, on 12 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 24 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.