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CVE-2026-43351

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Eagerly init vgic dist/redist on vgic creation If vgic_allocate_private_irqs_locked() fails for any odd reason, we exit kvm_vgic_create() early, leaving dist->rd_regions uninitialised. kvm_vgic_dist_destroy() then comes along and walks into the weeds trying to free the RDs. Got to love this stuff. Solve it by moving all the static initialisation early, and make sure that if we fail halfway, we're in a reasonable shape to perform the rest of the teardown. While at it, reset the vgic model on failure, just in case...

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-05-08 15:16:45.830000
Last modified
2026-11-06 16:18:36.357000
View original CVE JSON
{
  "id": "CVE-2026-43351",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-05-08T15:16:45.830",
  "lastModified": "2026-11-06T16:18:36.357",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Eagerly init vgic dist/redist on vgic creation\n\nIf vgic_allocate_private_irqs_locked() fails for any odd reason,\nwe exit kvm_vgic_create() early, leaving dist->rd_regions uninitialised.\n\nkvm_vgic_dist_destroy() then comes along and walks into the weeds\ntrying to free the RDs. Got to love this stuff.\n\nSolve it by moving all the static initialisation early, and make\nsure that if we fail halfway, we're in a reasonable shape to\nperform the rest of the teardown. While at it, reset the vgic model\non failure, just in case..."
    }
  ],
  "affected": [
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      "affectedData": [
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          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "arch/arm64/kvm/vgic/vgic-init.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
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              "versionType": "original_commit_for_fix",
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  ],
  "metrics": {
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          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 1.8,
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        "ssvcData": {
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          "id": "CVE-2026-43351",
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          "role": "CISA Coordinator",
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  "weaknesses": [
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}