CVE-2026-92524 irqchip/gic-v3-its: Prevent leak in its_vpe_irq_domain_alloc()
A resource leak in the Linux kernel's GICv3 ITS driver can lead to denial of service when interrupt allocation fails.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-92524?
CVE-2026-92524 is a denial of service vulnerability in Linux, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
irqchip/gic-v3-its: Prevent leak in its_vpe_irq_domain_alloc()
When its_irq_gic_domain_alloc() fails, the following its_vpe_irq_domain_free() fails to invoke its_vep_teardown() for the corresponding interrupt, which leaks the resource.
Invoke its_vpe_teardown() in the error handling path to avoid the leak.
[ tglx: Massaged change log ]
Which versions are affected by CVE-2026-92524?
How do I fix CVE-2026-92524?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-92524 being exploited?
There is no known exploitation of CVE-2026-92524 in the wild and no public exploit code.
Sources
Also known as AZL-102741, BELL-CVE-2026-92524, DEBIAN-CVE-2026-92524, GHSA-gw35-7q98-xvfh, UBUNTU-CVE-2026-92524.