High 7.3Published Apr 24, 2026

CVE-2026-31569LoongArch: KVM: Handle the case that EIOINTC's coremap is empty

Updated under an hour ago (Oct 27, 2026, 8:40 PM ET)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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[].

CVSS: 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 3956a52bc05bd811082a3c9d2b423ee957e6fefc before 126053d0a685bf1f2e98db8966386f38b2336338; 3956a52bc05bd811082a3c9d2b423ee957e6fefc builds before 2a0cbcd28ecf6e0b88fa498bebb94bd1be61a7c3; from 3956a52bc05bd811082a3c9d2b423ee957e6fefc before b97bd69eb0f67b5f961b304d28e9ba45e202d841	CNA record
linux linux_kernel linux:linux_kernel	from 6.13.1 before 6.18.21; from 6.19 before 6.19.11; 6.13; 7.0; 7.0; 7.0; 7.0; 7.0; and 2 more ranges	NVD

References

References

https://git.kernel.org/stable/c/126053d0a685bf1f2e98db8966386f38b2336338	patch
https://git.kernel.org/stable/c/2a0cbcd28ecf6e0b88fa498bebb94bd1be61a7c3	patch
https://git.kernel.org/stable/c/b97bd69eb0f67b5f961b304d28e9ba45e202d841	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.