Bug 2536692 (CVE-2026-90404) - CVE-2026-90404 kernel: platform/chrome: cros_ec_debugfs: Unregister panic notifier
Summary: CVE-2026-90404 kernel: platform/chrome: cros_ec_debugfs: Unregister panic not...
Keywords:
Status: NEW
Alias: CVE-2026-90404
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-17 19:07 UTC by OSIDB Bzimport
Modified: 2026-10-05 13:40 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-09-17 19:07:03 UTC
In the Linux kernel, the following vulnerability has been resolved:

platform/chrome: cros_ec_debugfs: Unregister panic notifier

cros_ec_debugfs_probe() registers notifier_panic with the EC panic
notifier chain. The remove path tears down debugfs and the console log,
but leaves the notifier registered. A later panic notification can call
back into the removed instance and queue work that accesses released
data.

Unregister the panic notifier before tearing down the debugfs and
console log state.

This issue was found by a static analysis tool.


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