CVE-2026-92506: Linux Linux

firmware: arm_scmi: Fix requested device removal race

No CVSS scoreEPSS 0.0021 · 10th percentile

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:10 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 a6fe96b2e371d5fd300cca24459cdcf471c2c741 to before 803e50af43ab1c3f76cbc744e496532ec151f305 git affected d3cd7c525fd2ecce3a6c963f314969a54783d211 to before 2ff7713b7308cd6bea3328f7cd750b5eaab42af3 git affected d3cd7c525fd2ecce3a6c963f314969a54783d211 to before 1c35915eaaa81a12340c838c5c2ccb02be2194c3 git affected d3cd7c525fd2ecce3a6c963f314969a54783d211 to before c3d4ef1c0ca6917aad6f1093b49f3932944a8c19 git affected d3cd7c525fd2ecce3a6c963f314969a54783d211 to before 21d35c5f46e99e9047bb9ded3ecb5ab440dd75b3 git affected d3cd7c525fd2ecce3a6c963f314969a54783d211 to before 2c4097e6c4aed276c5e9ec2ab331ab397ea780bf 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-2026-92506

CNA

Linux

Machine-written summary

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

The Linux kernel's arm_scmi firmware interface code has a race condition in device removal, affecting multiple kernel versions and stable branches as listed. When two SCMI drivers for the same protocol are unregistered at the same time, one thread can free a list head that the other still uses, leading to a use-after-free and a double free. The source does not state what an attacker would gain or what access is needed to trigger it. The fix is included in the listed patched versions, so upgrade to a fixed kernel release from your stable branch.

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 13 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.