CVE-2026-31569
High
Description
In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Handle the case that EIOINTC's coremap is empty EIOINTC's coremap in eiointc_update_sw_coremap() can be empty, currently we get a cpuid with -1 in this case, but we actually need 0 because it's similar as the case that cpuid >= 4. This fix an out-of-bounds access to kvm_arch::phyid_map::phys_map[].
SeverityHigh
CVSS7.3
Exploit probability—
Product
Linux Kernel
PublishedApr 24, 2026
First seenApr 24, 2026
How to fix
Update
- linux linux_kernel6.18.21, 6.19.11 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.13.1 ≤ v < 6.18.21, 6.19 ≤ v < 6.19.11, 6.13, 7.0 | 6.18.21, 6.19.11 |
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