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CVE-2026-31558

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[].
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:451636f5f917424050be233a7249675a05b8878ad14c3853d91e9d865a789734
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/loongarch/kvm/vcpu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"596c3f8069c4792f22fce8c4452f44410032d910","status":"affected","version":"73516e9da512adc63ba3859fbd82a21f6257348f","versionType":"git"},{"lessThan":"878cf6acb4fd8ab4126cf9d369a5bb0e23123418","status":"affected","version":"73516e9da512adc63ba3859fbd82a21f6257348f","versionType":"git"},{"lessThan":"47857b05bd50db01e211a1b6f513d57901cd3e6b","status":"affected","version":"73516e9da512adc63ba3…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:999d712981aec7d841a7b716bcab17d15f54d7853038b4c673d3a13b26dfa181 · sha256:8064d2c740a2d9a0… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["arch/loongarch/kvm/vcpu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.10"},{"lessThan":"6.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"less…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:999d712981aec7d841a7b716bcab17d15f54d7853038b4c673d3a13b26dfa181 · sha256:8064d2c740a2d9a0… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/loongarch/kvm/vcpu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"596c3f8069c4792f22fce8c4452f44410032d910","status":"affected","version":"73516e9da512adc63ba3859fbd82a21f6257348f","versionType":"git"},{"lessThan":"878cf6acb4fd8ab4126cf9d369a5bb0e23123418","status":"affected","version":"73516e9da512adc63ba3859fbd82a21f6257348f","versionType":"git"},{"lessThan":"47857b05bd50db01e211a1b6f513d57901cd3e6b","status":"affected","version":"73516e9da512adc63ba3…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:999d712981aec7d841a7b716bcab17d15f54d7853038b4c673d3a13b26dfa181 · sha256:8064d2c740a2d9a0… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/loongarch/kvm/vcpu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.10"},{"lessThan":"6.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"less…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:999d712981aec7d841a7b716bcab17d15f54d7853038b4c673d3a13b26dfa181 · sha256:8064d2c740a2d9a0… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:999d712981aec7d841a7b716bcab17d15f54d7853038b4c673d3a13b26dfa181 · sha256:8064d2c740a2d9a0… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/2db06c15d8c7a0ccb6108524e16cd9163753f354"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:999d712981aec7d841a7b716bcab17d15f54d7853038b4c673d3a13b26dfa181 · sha256:8064d2c740a2d9a0… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/47857b05bd50db01e211a1b6f513d57901cd3e6b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:999d712981aec7d841a7b716bcab17d15f54d7853038b4c673d3a13b26dfa181 · sha256:8064d2c740a2d9a0… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/596c3f8069c4792f22fce8c4452f44410032d910"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:999d712981aec7d841a7b716bcab17d15f54d7853038b4c673d3a13b26dfa181 · sha256:8064d2c740a2d9a0… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/878cf6acb4fd8ab4126cf9d369a5bb0e23123418"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:999d712981aec7d841a7b716bcab17d15f54d7853038b4c673d3a13b26dfa181 · sha256:8064d2c740a2d9a0… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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