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CVE-2026-43331 x86/kexec: Disable KCOV instrumentation after load_segments()

🗓️ 08 May 2026 13:31:18Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 64 Views

Disable KCOV instrumentation for machine_kexec_64.c and physaddr.c after load_segments to prevent kexec crashes with coverage.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kernel/Makefile",
      "arch/x86/mm/Makefile"
    ],
    "versions": [
      {
        "version": "0d345996e4cb573f8cc81d49b3ee9a7fd2035bef",
        "lessThan": "0e96cd314c0d819c1635d68125a4d77852c2162e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0d345996e4cb573f8cc81d49b3ee9a7fd2035bef",
        "lessThan": "593d67032544b9271094fc9b43e437e017cb2b2f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0d345996e4cb573f8cc81d49b3ee9a7fd2035bef",
        "lessThan": "1e3e98596c2769721ade0418434852fb3af4849a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0d345996e4cb573f8cc81d49b3ee9a7fd2035bef",
        "lessThan": "de05c66fab8847237a9ca216934e56d3ee837f08",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0d345996e4cb573f8cc81d49b3ee9a7fd2035bef",
        "lessThan": "917e3ad3321e75ca0223d5ccf26ceda116aa51e1",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kernel/Makefile",
      "arch/x86/mm/Makefile"
    ],
    "versions": [
      {
        "version": "6.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.22",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.12",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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