Bug 2393514 (CVE-2025-39701) - CVE-2025-39701 kernel: ACPI: pfr_update: Fix the driver update version check
Summary: CVE-2025-39701 kernel: ACPI: pfr_update: Fix the driver update version check
Keywords:
Status: NEW
Alias: CVE-2025-39701
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-09-05 18:03 UTC by OSIDB Bzimport
Modified: 2025-09-05 21:30 UTC (History)
0 users

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2025-09-05 18:03:35 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ACPI: pfr_update: Fix the driver update version check

The security-version-number check should be used rather
than the runtime version check for driver updates.

Otherwise, the firmware update would fail when the update binary had
a lower runtime version number than the current one.

[ rjw: Changelog edits ]
Comment 1 Jon Moroney 2025-09-05 21:27:50 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025090548-CVE-2025-39701-ce5e@gregkh/T
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