CVE-2025-40136 | BDVDB-2026-301762 Detail
LinuxLinux
Description#
In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/qm - request reserved interrupt for virtual function The device interrupt vector 3 is an error interrupt for physical function and a reserved interrupt for virtual function. However, the driver has not registered the reserved interrupt for virtual function. When allocating interrupts, the number of interrupts is allocated based on powers of two, which includes this interrupt. When the system enables GICv4 and the virtual function passthrough to the virtual machine, releasing the interrupt in the driver triggers a warning. The WARNING report is: WARNING: CPU: 62 PID: 14889 at arch/arm64/kvm/vgic/vgic-its.c:852 its_free_ite+0x94/0xb4 Therefore, register a reserved interrupt for VF and set the IRQF_NO_AUTOEN flag to avoid that warning.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/e0a82361cef20380b1c0f342c7e92f8ddabeefc2
- https://git.kernel.org/stable/c/5f75857ed634d04266301d7a4f695a7deeb9bfdc
- https://git.kernel.org/stable/c/24315474ca913c0693939ab74b389ee04c7d3020
- https://git.kernel.org/stable/c/854da2b0df1654d63963d587b12fec6068d89643
- https://git.kernel.org/stable/c/9228facb308157ac0bdd264b873187896f7a9c7a
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.