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CVE-2026-46317

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Reassign nested_mmus array behind mmu_lock kvm->arch.nested_mmus[] is walked under kvm->mmu_lock, including from the MMU notifier path (kvm_unmap_gfn_range() -> kvm_nested_s2_unmap()), which can run at any time. kvm_vcpu_init_nested() reallocates the array and frees the old buffer while holding only kvm->arch.config_lock, so such a walker can reference the freed array. Allocate the new array outside of mmu_lock, a
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:61b2ab506f9d20f21f842dbd8c46d1039b454c97debc727898271af90c607f5f
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":"affected","product":"Linux","programFiles":["arch/arm64/kvm/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:35291e4a0c0a9d51a1ff912ff696a3f2f638a3f97fde1b1b432d75cee3127faa · sha256:80bd561257b06691… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/arm64/kvm/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"918450ad6010df6ecd2efde12a1409e011da22d6","status":"affected","version":"4f128f8e1aaac189f83d0f828bcdb2986d8d2e51","versionType":"git"},{"lessThan":"4424dbcb06d68e34e51c019a5781a7dc00731971","status":"affected","version":"4f128f8e1aaac189f83d0f828bcdb2986d8d2e51","versionType":"git"},{"lessThan":"70543358fa08e0f7cebc3447c3b70fe97ad7aaa8","status":"affected","version":"4f128f8e1aaac189f83d0f…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:35291e4a0c0a9d51a1ff912ff696a3f2f638a3f97fde1b1b432d75cee3127faa · sha256:80bd561257b06691… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/arm64/kvm/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:35291e4a0c0a9d51a1ff912ff696a3f2f638a3f97fde1b1b432d75cee3127faa · sha256:80bd561257b06691… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/arm64/kvm/nested.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"918450ad6010df6ecd2efde12a1409e011da22d6","status":"affected","version":"4f128f8e1aaac189f83d0f828bcdb2986d8d2e51","versionType":"git"},{"lessThan":"4424dbcb06d68e34e51c019a5781a7dc00731971","status":"affected","version":"4f128f8e1aaac189f83d0f828bcdb2986d8d2e51","versionType":"git"},{"lessThan":"70543358fa08e0f7cebc3447c3b70fe97ad7aaa8","status":"affected","version":"4f128f8e1aaac189f83d0f…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:35291e4a0c0a9d51a1ff912ff696a3f2f638a3f97fde1b1b432d75cee3127faa · sha256:80bd561257b06691… · /containers/cna/affected/0

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:v2:35291e4a0c0a9d51a1ff912ff696a3f2f638a3f97fde1b1b432d75cee3127faa · sha256:80bd561257b06691… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/4424dbcb06d68e34e51c019a5781a7dc00731971"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35291e4a0c0a9d51a1ff912ff696a3f2f638a3f97fde1b1b432d75cee3127faa · sha256:80bd561257b06691… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/70543358fa08e0f7cebc3447c3b70fe97ad7aaa8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35291e4a0c0a9d51a1ff912ff696a3f2f638a3f97fde1b1b432d75cee3127faa · sha256:80bd561257b06691… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/918450ad6010df6ecd2efde12a1409e011da22d6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35291e4a0c0a9d51a1ff912ff696a3f2f638a3f97fde1b1b432d75cee3127faa · sha256:80bd561257b06691… · /containers/cna/references/0

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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