Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-43265

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ignore -EBUSY when checking nested events from vcpu_block() Ignore -EBUSY when checking nested events after exiting a blocking state while L2 is active, as exiting to userspace will generate a spurious userspace exit, usually with KVM_EXIT_UNKNOWN, and likely lead to the VM's demise. Continuing with the wakeup isn't perfect either, as *something* has gone sideways if a vCPU is awakened in L2 with an injected event (
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e07bdfe099de3fc37f717734b0a3052aefb02d13874361aa94825070e8c3b1b5
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/x86/kvm/x86.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"78265cd066d73a5cb41c088fcae4a2515e480d97","status":"affected","version":"26844fee6adee9b1557d2279b0506285de9ee82b","versionType":"git"},{"lessThan":"ec3be7dc9391085a2d96700e159d66d1328b7ff6","status":"affected","version":"26844fee6adee9b1557d2279b0506285de9ee82b","versionType":"git"},{"lessThan":"2657439265d34a911886b916ba8be97ecc117d51","status":"affected","version":"26844fee6adee9b1557d2279b05…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:78dff3dd379a78bcd1d63bb327b406d0605a9eb2831f3f95ba9976936d0d82f3 · sha256:cbdd63d44e7d751c… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/kvm/x86.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.1"},{"lessThan":"6.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.77","versionType":"semver"},{"lessThanOrEqual…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:78dff3dd379a78bcd1d63bb327b406d0605a9eb2831f3f95ba9976936d0d82f3 · sha256:cbdd63d44e7d751c… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/kvm/x86.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"78265cd066d73a5cb41c088fcae4a2515e480d97","status":"affected","version":"26844fee6adee9b1557d2279b0506285de9ee82b","versionType":"git"},{"lessThan":"ec3be7dc9391085a2d96700e159d66d1328b7ff6","status":"affected","version":"26844fee6adee9b1557d2279b0506285de9ee82b","versionType":"git"},{"lessThan":"2657439265d34a911886b916ba8be97ecc117d51","status":"affected","version":"26844fee6adee9b1557d2279b05…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:78dff3dd379a78bcd1d63bb327b406d0605a9eb2831f3f95ba9976936d0d82f3 · sha256:cbdd63d44e7d751c… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/kvm/x86.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.1"},{"lessThan":"6.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.77","versionType":"semver"},{"lessThanOrEqual…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:78dff3dd379a78bcd1d63bb327b406d0605a9eb2831f3f95ba9976936d0d82f3 · sha256:cbdd63d44e7d751c… · /containers/cna/affected/1

Source references

6 source assertions
{"url":"https://git.kernel.org/stable/c/1c957773063ed3264953597e32990a748381caf6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:78dff3dd379a78bcd1d63bb327b406d0605a9eb2831f3f95ba9976936d0d82f3 · sha256:cbdd63d44e7d751c… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/1e88b5f854bdb469424132e0bb44793ad7a7c20a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:78dff3dd379a78bcd1d63bb327b406d0605a9eb2831f3f95ba9976936d0d82f3 · sha256:cbdd63d44e7d751c… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/2657439265d34a911886b916ba8be97ecc117d51"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:78dff3dd379a78bcd1d63bb327b406d0605a9eb2831f3f95ba9976936d0d82f3 · sha256:cbdd63d44e7d751c… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/78265cd066d73a5cb41c088fcae4a2515e480d97"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:78dff3dd379a78bcd1d63bb327b406d0605a9eb2831f3f95ba9976936d0d82f3 · sha256:cbdd63d44e7d751c… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/ead63640d4e72e6f6d464f4e31f7fecb79af8869"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:78dff3dd379a78bcd1d63bb327b406d0605a9eb2831f3f95ba9976936d0d82f3 · sha256:cbdd63d44e7d751c… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/ec3be7dc9391085a2d96700e159d66d1328b7ff6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:78dff3dd379a78bcd1d63bb327b406d0605a9eb2831f3f95ba9976936d0d82f3 · sha256:cbdd63d44e7d751c… · /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.

← Back to CVE Explorer