CVE-2026-31558
LoongArch: KVM: Make kvm_get_vcpu_by_cpuid() more robust
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Make kvm_get_vcpu_by_cpuid() more robust kvm_get_vcpu_by_cpuid() takes a cpuid parameter whose type is int, so cpuid can be negative. Let kvm_get_vcpu_by_cpuid() return NULL for this case so as to make it more robust. This fix an out-of-bounds access to kvm_arch::phyid_map::phys_map[].
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 24, 2026 |
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Affected Versions
Linux / Linux
73516e9da512adc63ba3859fbd82a21f6257348f < 596c3f8069c4792f22fce8c4452f44410032d910 73516e9da512adc63ba3859fbd82a21f6257348f < 878cf6acb4fd8ab4126cf9d369a5bb0e23123418 73516e9da512adc63ba3859fbd82a21f6257348f < 47857b05bd50db01e211a1b6f513d57901cd3e6b 73516e9da512adc63ba3859fbd82a21f6257348f < 2db06c15d8c7a0ccb6108524e16cd9163753f354
Linux / Linux
6.10
References
git.kernel.org: https://git.kernel.org/stable/c/596c3f8069c4792f22fce8c4452f44410032d910 git.kernel.org: https://git.kernel.org/stable/c/878cf6acb4fd8ab4126cf9d369a5bb0e23123418 git.kernel.org: https://git.kernel.org/stable/c/47857b05bd50db01e211a1b6f513d57901cd3e6b git.kernel.org: https://git.kernel.org/stable/c/2db06c15d8c7a0ccb6108524e16cd9163753f354