CVE-2026-23027: LoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy()

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-31 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy() In kvm_ioctl_create_device(), kvm_device has allocated memory, kvm_device->destroy() seems to be supposed to free its kvm_device struct, but kvm_pch_pic_destroy() is not currently doing this, that would lead to a memory leak. So, fix it.

Affected products

Linux kernel: 6.13 — fixed in 6.19

How to fix

Upgrade to a fixed version: Linux kernel 6.19. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/1cf342a7c3adc5877837b53bbceb5cc9eff60bbf
https://git.kernel.org/stable/c/fc53a66227af08d868face4b33fa8b2e1ba187ed

Get alerted when CVE-2026-23027 or the next vulnerability affects your stack