# CVE-2026-68087: linux: In the Linux kernel, the following vulnerability has been resolved:  HID: wacom: use GFP_ATOMIC in wacom_wac_queue_fl...

CVE-2026-68087 is fixed in linux on 1 platform by DEBIAN-CVE-2026-68087 (version 7.1.4-1), released August 11, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-68087
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 10, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  HID: wacom: use GFP_ATOMIC in wacom_wac_queue_flush()  wacom_wac_queue_flush() is called via the .raw_event callback (wacom_raw_event → wacom_wac_pen_serial_enforce → wacom_wac_queue_flush). For USB HID devices, this callback is invoked from hid_irq_in(), which is a URB completion handler running in atomic context. Using GFP_KERNEL in this path can sleep, leading to a "scheduling while atomic" bug.  Use GFP_ATOMIC instead. The existing code already handles allocation failure by skipping the fifo entry and continuing.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.1.4-1 | [DEBIAN-CVE-2026-68087](https://patchblox.com/security/data/fix/linux/debian-cve-2026-68087.md) | Aug 11, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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