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CVE-2026-31569

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CVE-2026-31569

Published: Apr 24, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

7.3

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[].

VendorProductVersions

Linux

Linux

affected
3956a52bc05bd811082a3c9d2b423ee957e6fefc - < 126053d0a685bf1f2e98db8966386f38b2336338
affected
3956a52bc05bd811082a3c9d2b423ee957e6fefc - < 2a0cbcd28ecf6e0b88fa498bebb94bd1be61a7c3
affected
3956a52bc05bd811082a3c9d2b423ee957e6fefc - < b97bd69eb0f67b5f961b304d28e9ba45e202d841

Linux

Linux

affected
6.13
unaffected
0 - < 6.13
unaffected
6.18.21 - <= 6.18.*
unaffected
6.19.11 - <= 6.19.*
unaffected
7.0 - <= *

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

High

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CVE-2026-31569 | HIGH (7.3) - Security Vulnerability | QwikSec