Bug 2536426 (CVE-2026-93069) - CVE-2026-93069 kernel: OPP: Fix cleanup ordering
Summary: CVE-2026-93069 kernel: OPP: Fix cleanup ordering
Keywords:
Status: NEW
Alias: CVE-2026-93069
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 17:46 UTC by OSIDB Bzimport
Modified: 2026-10-20 11:31 UTC (History)
17 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-17 17:46:45 UTC
In the Linux kernel, the following vulnerability has been resolved:

OPP: Fix cleanup ordering

Commit 173e02d67494 ("OPP: Initialize scope-based pointers inline")
added initialization for all pointers. In some cases, the ordering was
changed so that *opp_table was initialized after *opp. This also changes
the order of the registered cleanup functions.

When the cleanup happens, this can cause use-after-free errors when the
last reference is released and the release function _opp_kref_release
tries to access the already freed opp->opp_table.

Initialize *opp_table before *opp again to fix this and ensure the
correct cleanup order.


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