Bug 2378980 (CVE-2025-38253) - CVE-2025-38253 kernel: HID: wacom: fix crash in wacom_aes_battery_handler()
Summary: CVE-2025-38253 kernel: HID: wacom: fix crash in wacom_aes_battery_handler()
Keywords:
Status: NEW
Alias: CVE-2025-38253
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: 2025-07-09 11:01 UTC by OSIDB Bzimport
Modified: 2025-07-09 17:53 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-07-09 11:01:34 UTC
In the Linux kernel, the following vulnerability has been resolved:

HID: wacom: fix crash in wacom_aes_battery_handler()

Commit fd2a9b29dc9c ("HID: wacom: Remove AES power_supply after extended
inactivity") introduced wacom_aes_battery_handler() which is scheduled
as a delayed work (aes_battery_work).

In wacom_remove(), aes_battery_work is not canceled. Consequently, if
the device is removed while aes_battery_work is still pending, then hard
crashes or "Oops: general protection fault..." are experienced when
wacom_aes_battery_handler() is finally called. E.g., this happens with
built-in USB devices after resume from hibernate when aes_battery_work
was still pending at the time of hibernation.

So, take care to cancel aes_battery_work in wacom_remove().


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