CVE-2026-68087
Last modified
CVE-2026-68087 is a vulnerability of currently unknown severity. 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.
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.
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 5e013ad206895e72d7da41bc1ae89d8cb499c3aa, < bbe1e55629bfaabd4b2e8125b48dd3503d74ac8b; >= 5e013ad206895e72d7da41bc1ae89d8cb499c3aa, < 27c4dad1b7917b747bf080792a527997e3147c69; >= 5e013ad206895e72d7da41bc1ae89d8cb499c3aa, < 55f1ad573e34abf9a0443c34bc5a63d74edba7d7 |
| Linux | Linux | 6.15 |
References
Timeline
- Published
- Last Modified
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- Received
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