CVE Explorer

CVE-2026-63807

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level When recovering hugepages in the shadow MMU, verify that the base gfn of the shadow page is actually contained within the target memslot, *before* querying the max mapping level given the shadow page's gfn. Failure to pre-check the validity of the gfn can lead to an out-of-bounds access to the slot's lpage_info (which typically manifests as a host #

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e64651a875b096499700addffc1539a34522a7f91ff72ec110f81fa8825fa549

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/kvm/mmu/mmu.c","include/linux/kvm_host.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"7b52008023b7facf40fba3ebe92449bda8ea53b9","status":"affected","version":"9eba50f8d7fcb61774f160890f98239fa3ab68a6","versionType":"git"},{"lessThan":"5cab1c989f938f5e1b9a0de66486f1fc2c28479b","status":"affected","version":"9eba50f8d7fcb61774f160890f98239fa3ab68a6","versionType":"git"},{"lessThan":"48b91ed7e22bb82571c34f8b80b6ecdc90a6fab8","status":"affected","versio…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/kvm/mmu/mmu.c","include/linux/kvm_host.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.12"},{"lessThan":"5.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.144","versio…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /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:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /containers/cna/metrics/0/cvssV3_1

Source references

7 source assertions

{"url":"https://git.kernel.org/stable/c/18587f9831612e24cd8f24be1ec15478feff7abc"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/48b91ed7e22bb82571c34f8b80b6ecdc90a6fab8"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/5cab1c989f938f5e1b9a0de66486f1fc2c28479b"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/7b52008023b7facf40fba3ebe92449bda8ea53b9"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/b2ae3245ea44dccaa9af676b6747476951883318"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/c5c29b3c268332afe67d598a034c58344540ed92"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/ef057cbf825e03b63f6edf5980f96abf3c53089d"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:61e2f2181cc3c2bf666c98ab5fffa87bad276cdcc18283c8962ee8ad4f67b524 · sha256:0cc28664d9887a4c… · /containers/cna/references/6

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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