CVE-2026-31558
- Source
- https://cve.org/CVERecord?id=CVE-2026-31558
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31558.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-31558
- Downstream
- Published
- 2026-04-24T14:35:41.209Z
- Modified
- 2026-07-15T01:48:54.079283706Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- LoongArch: KVM: Make kvm_get_vcpu_by_cpuid() more robust
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
LoongArch: KVM: Make kvmgetvcpubycpuid() more robust
kvmgetvcpubycpuid() takes a cpuid parameter whose type is int, so cpuid can be negative. Let kvmgetvcpubycpuid() return NULL for this case so as to make it more robust.
This fix an out-of-bounds access to kvmarch::phyidmap::phys_map[].
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31558.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/2db06c15d8c7a0ccb6108524e16cd9163753f354
- https://git.kernel.org/stable/c/47857b05bd50db01e211a1b6f513d57901cd3e6b
- https://git.kernel.org/stable/c/596c3f8069c4792f22fce8c4452f44410032d910
- https://git.kernel.org/stable/c/878cf6acb4fd8ab4126cf9d369a5bb0e23123418
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31558.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-31558
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced73516e9da512adc63ba3859fbd82a21f6257348fFixed596c3f8069c4792f22fce8c4452f44410032d910Fixed878cf6acb4fd8ab4126cf9d369a5bb0e23123418Fixed47857b05bd50db01e211a1b6f513d57901cd3e6bFixed2db06c15d8c7a0ccb6108524e16cd9163753f354