CVE-2026-31569
7.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H
Summary
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[].
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 3956a52bc05bd811082a3c9d2b423ee957e6fefc < 126053d0a685bf1f2e98db8966386f38b2336338 | affected |
| Linux | Linux | 3956a52bc05bd811082a3c9d2b423ee957e6fefc < 2a0cbcd28ecf6e0b88fa498bebb94bd1be61a7c3 | affected |
| Linux | Linux | 3956a52bc05bd811082a3c9d2b423ee957e6fefc < b97bd69eb0f67b5f961b304d28e9ba45e202d841 | affected |
| Linux | Linux | 6.13 | affected |
| Linux | Linux | 0 < 6.13 | unaffected |
| Linux | Linux | 6.18.21 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.11 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/126053d0a685bf1f2e98db8966386f38b2336338
- https://git.kernel.org/stable/c/2a0cbcd28ecf6e0b88fa498bebb94bd1be61a7c3
- https://git.kernel.org/stable/c/b97bd69eb0f67b5f961b304d28e9ba45e202d841
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