CVE-2025-40136

crypto: hisilicon/qm - request reserved interrupt for virtual function

State: Published
Severity: Not scored
Published: Nov 12, 2025
Updated: Oct 30, 2026
Reserved: Apr 16, 2025

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	3536cc55cadaf2a03241915f9cfdaf6cd073e4fe to before e0a82361cef20380b1c0f342c7e92f8ddabeefc2Affected 3536cc55cadaf2a03241915f9cfdaf6cd073e4fe to before 5f75857ed634d04266301d7a4f695a7deeb9bfdcAffected 3536cc55cadaf2a03241915f9cfdaf6cd073e4fe to before 24315474ca913c0693939ab74b389ee04c7d3020Affected 3536cc55cadaf2a03241915f9cfdaf6cd073e4fe to before 854da2b0df1654d63963d587b12fec6068d89643Affected 3536cc55cadaf2a03241915f9cfdaf6cd073e4fe to before 9228facb308157ac0bdd264b873187896f7a9c7aAffected
LinuxLinux	6.1Affected before 6.1Not affected 6.1.191 through 6.1.Not affected 6.6.160 through 6.6.Not affected 6.12.114 through 6.12.Not affected 6.17.3 through 6.17.Not affected 6.18 and laterNot affected

Product

Versions

LinuxLinux

3536cc55cadaf2a03241915f9cfdaf6cd073e4fe to before e0a82361cef20380b1c0f342c7e92f8ddabeefc2Affected
3536cc55cadaf2a03241915f9cfdaf6cd073e4fe to before 5f75857ed634d04266301d7a4f695a7deeb9bfdcAffected
3536cc55cadaf2a03241915f9cfdaf6cd073e4fe to before 24315474ca913c0693939ab74b389ee04c7d3020Affected
3536cc55cadaf2a03241915f9cfdaf6cd073e4fe to before 854da2b0df1654d63963d587b12fec6068d89643Affected
3536cc55cadaf2a03241915f9cfdaf6cd073e4fe to before 9228facb308157ac0bdd264b873187896f7a9c7aAffected

LinuxLinux

6.1Affected
before 6.1Not affected
6.1.191 through 6.1.*Not affected
6.6.160 through 6.6.*Not affected
6.12.114 through 6.12.*Not affected
6.17.3 through 6.17.*Not affected
6.18 and laterNot affected

References

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