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CVE-2025-68810

In the Linux kernel, the following vulnerability has been resolved: KVM: Disallow toggling KVM_MEM_GUEST_MEMFD on an existing memslot Reject attempts to disable KVM_MEM_GUEST_MEMFD on a memslot that was initially created with a guest_memfd binding, as KVM doesn't support toggling KVM_MEM_GUEST_MEMFD on existing memslots. KVM prevents enabling KVM_MEM_GUEST_MEMFD, but doesn't prevent clearing the flag. Failure to reject the new memslot results in a use-after-free due to KVM not unbinding from
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:fef8eec14a34837051770c07edb62668bef1d684afd4b1bdcf3393d4dc1e3488
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":["virt/kvm/kvm_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"89dbbe6ff323fc34659621a577fe0af913f47386","status":"affected","version":"a7800aa80ea4d5356b8474c2302812e9d4926fa6","versionType":"git"},{"lessThan":"cb51bef465d8ec60a968507330e01020e35dc127","status":"affected","version":"a7800aa80ea4d5356b8474c2302812e9d4926fa6","versionType":"git"},{"lessThan":"9935df5333aa503a18de5071f53762b65c783c4c","status":"affected","version":"a7800aa80ea4d5356b8474c230…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8d888b6dcdfef904eb8e060874e0b3a1ee4de44b2e3f5316ee07b5216467b6cd · sha256:4d4f4ea6382e0ca8… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["virt/kvm/kvm_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.8"},{"lessThan":"6.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.64","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8d888b6dcdfef904eb8e060874e0b3a1ee4de44b2e3f5316ee07b5216467b6cd · sha256:4d4f4ea6382e0ca8… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["virt/kvm/kvm_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"89dbbe6ff323fc34659621a577fe0af913f47386","status":"affected","version":"a7800aa80ea4d5356b8474c2302812e9d4926fa6","versionType":"git"},{"lessThan":"cb51bef465d8ec60a968507330e01020e35dc127","status":"affected","version":"a7800aa80ea4d5356b8474c2302812e9d4926fa6","versionType":"git"},{"lessThan":"9935df5333aa503a18de5071f53762b65c783c4c","status":"affected","version":"a7800aa80ea4d5356b8474c230…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8d888b6dcdfef904eb8e060874e0b3a1ee4de44b2e3f5316ee07b5216467b6cd · sha256:4d4f4ea6382e0ca8… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["virt/kvm/kvm_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.8"},{"lessThan":"6.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.64","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8d888b6dcdfef904eb8e060874e0b3a1ee4de44b2e3f5316ee07b5216467b6cd · sha256:4d4f4ea6382e0ca8… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:8d888b6dcdfef904eb8e060874e0b3a1ee4de44b2e3f5316ee07b5216467b6cd · sha256:4d4f4ea6382e0ca8… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/89dbbe6ff323fc34659621a577fe0af913f47386"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8d888b6dcdfef904eb8e060874e0b3a1ee4de44b2e3f5316ee07b5216467b6cd · sha256:4d4f4ea6382e0ca8… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/9935df5333aa503a18de5071f53762b65c783c4c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8d888b6dcdfef904eb8e060874e0b3a1ee4de44b2e3f5316ee07b5216467b6cd · sha256:4d4f4ea6382e0ca8… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/cb51bef465d8ec60a968507330e01020e35dc127"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8d888b6dcdfef904eb8e060874e0b3a1ee4de44b2e3f5316ee07b5216467b6cd · sha256:4d4f4ea6382e0ca8… · /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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