Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-43363

In the Linux kernel, the following vulnerability has been resolved: x86/apic: Disable x2apic on resume if the kernel expects so When resuming from s2ram, firmware may re-enable x2apic mode, which may have been disabled by the kernel during boot either because it doesn't support IRQ remapping or for other reasons. This causes the kernel to continue using the xapic interface, while the hardware is in x2apic mode, which causes hangs. This happens on defconfig + bare metal + s2ram. Fix this in la
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2c9fa1dd6a85273e2730a00cce8eee851263ca62c80d664a8f8051388ddccc34
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/x86/kernel/apic/apic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.28"},{"lessThan":"2.6.28","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"}…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/kernel/apic/apic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a6ad6f2e31b524cbb66b2f370bad0cf17d327e6c","status":"affected","version":"6e1cb38a2aef7680975e71f23de187859ee8b158","versionType":"git"},{"lessThan":"3dd0812a7c764cd8f3b0182441ac22da0a7f3b09","status":"affected","version":"6e1cb38a2aef7680975e71f23de187859ee8b158","versionType":"git"},{"lessThan":"965289b120cc68cca886c75219c68b8c15751d73","status":"affected","version":"6e1cb38a2aef768097…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/kernel/apic/apic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.28"},{"lessThan":"2.6.28","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"}…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/kernel/apic/apic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a6ad6f2e31b524cbb66b2f370bad0cf17d327e6c","status":"affected","version":"6e1cb38a2aef7680975e71f23de187859ee8b158","versionType":"git"},{"lessThan":"3dd0812a7c764cd8f3b0182441ac22da0a7f3b09","status":"affected","version":"6e1cb38a2aef7680975e71f23de187859ee8b158","versionType":"git"},{"lessThan":"965289b120cc68cca886c75219c68b8c15751d73","status":"affected","version":"6e1cb38a2aef768097…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/affected/0

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/11712c4eb384098db4cb08792e223c818b908c1a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/1a85f84214f9d790216547ac6086bf8033cd9e5a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/1d8440c1e7c49715f937416ac90cf260f1f1712c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/3dd0812a7c764cd8f3b0182441ac22da0a7f3b09"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/8cc7dd77a1466f0ec58c03478b2e735a5b289b96"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/965289b120cc68cca886c75219c68b8c15751d73"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/a6ad6f2e31b524cbb66b2f370bad0cf17d327e6c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/f591938072115bf08730b8530c67fab189cc6308"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f36197add02887a53738368952243e0fd2d5a5e8788c77cc68c4a94b80eaf83 · sha256:a8aab5ea1c4b5a48… · /containers/cna/references/3

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