Riskcovery

CVE-2026-68087

HID: wacom: use GFP_ATOMIC in wacom_wac_queue_flush()

State
Published
Severity
Not scored
Published
Aug 10, 2026
Updated
Aug 17, 2026
Reserved
Jul 30, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 5e013ad206895e72d7da41bc1ae89d8cb499c3aa to before bbe1e55629bfaabd4b2e8125b48dd3503d74ac8bAffected
  • 5e013ad206895e72d7da41bc1ae89d8cb499c3aa to before 27c4dad1b7917b747bf080792a527997e3147c69Affected
  • 5e013ad206895e72d7da41bc1ae89d8cb499c3aa to before 55f1ad573e34abf9a0443c34bc5a63d74edba7d7Affected
LinuxLinux
  • 6.15Affected
  • before 6.15Not affected
  • 6.18.39 through 6.18.*Not affected
  • 7.1.4 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.