CVE record · CVE-2026-93086

firmware: arm_scmi: Avoid IDR updates while cleaning channels

No CVSS scoreEPSS 0.0021 · 10th percentile

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:11 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 22f7f35fd71b597a5d916e41d7646be6ee530c86 to before f50698c617350a6e2064dffd6cff3f391e142f55 git affected 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 to before aed24a3c63920539e9de7fbfe7929a2e7c888cd2 git affected 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 to before 431c6b872ba7fedcc5a3afb0ec3517db4d95d088 git affected 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 to before 54e5a4f7d83db4552d963d0785be32d9df680dcd git affected 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 to before bab26acebe55e8ad3ab545abda72faa7ca28c477 git affected 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 to before c38b1e19485aaa820e52cfe162525a8af67563da git Other versions: unaffected
Linux	Linux	affected 6.3 unaffected before 6.3 semver unaffected 6.6.157 to 6.6., inclusive semver unaffected 6.12.110 to 6.12., inclusive semver unaffected 6.18.52 to 6.18., inclusive semver unaffected 7.2.6 to 7.2., inclusive semver unaffected 7.3 to *, inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-93086
CNA: Linux
Tags: Linux kernel
Published: 17 Sept 2026
Updated: 30 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The Linux kernel's arm_scmi firmware driver is affected from version 6.3 until fixed. The source gives few details on attacker requirements or impact, only that channel cleanup could invalidate iterator state by removing entries during an IDR walk. Upgrade to 6.6.157, 6.12.110, 6.18.52, or 7.2.6 (or a later release in the same series).

Written 12 Nov 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 0.0021, the 10th 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 17 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.