CVE-2026-46297
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
In the Linux kernel, the libwx driver uses request_threaded_irq() with a primary handler but no threaded handler, while setting IRQF_ONESHOT flag, triggering a kernel warning since commit aef30c8d569c. The fix replaces it with request_irq() and removes the unnecessary flag.
Risk Assessment
The risk involves kernel warnings that may obscure more critical issues and potential stability degradation when handling VF (Virtual Function) interrupts in virtualized environments.
Recommendation
Update the Linux kernel to a version containing the fix (commit replacing request_threaded_irq with request_irq in the libwx driver). Monitor kernel logs for IRQF_ONESHOT-related warnings.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: net: libwx: use request_irq for VF misc interrupt Currently, request_threaded_irq() is used with a primary handler but a NULL threaded handler, while also setting the IRQF_ONESHOT flag. This specific combination triggers a WARNING since the commit aef30c8d569c ("genirq: Warn about using IRQF_ONESHOT without a threaded handler"). WARNING: kernel/irq/manage.c:1502 at __setup_irq+0x4fa/0x760 Fix the issue by switching to request_irq(), which is the appropriate interface or a non-threaded interrupt handler, and removing the unnecessary IRQF_ONESHOT flag.