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CVE-2026-43171 EFI/CPER: don't dump the entire memory region

🗓️ 06 May 2026 11:27:46Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 22 Views

Linux kernel EFI/CPER fix prevents memory underflow in cper_print_fw_err by validating length.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/firmware/efi/cper.c"
    ],
    "versions": [
      {
        "version": "3d8c11efd528d56972d44ed0de51c4e11a9a4fa9",
        "lessThan": "02de64ab54b4bb0f1b21bb324aeff3b08612be33",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3d8c11efd528d56972d44ed0de51c4e11a9a4fa9",
        "lessThan": "0e09b522f2622841389c3b2f9ac4969e35c0809d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3d8c11efd528d56972d44ed0de51c4e11a9a4fa9",
        "lessThan": "64ae5aaa7ac93c83da456039e8ec747bfa8a7cff",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3d8c11efd528d56972d44ed0de51c4e11a9a4fa9",
        "lessThan": "5a9b1dda8481b82851a655c3bcc5b44879b95334",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3d8c11efd528d56972d44ed0de51c4e11a9a4fa9",
        "lessThan": "7780c0bad2a3a70a8c0113a33c02f4151d901eb3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3d8c11efd528d56972d44ed0de51c4e11a9a4fa9",
        "lessThan": "a8419f5f2c5f2d80848ddabb2b95cf0da84a5f91",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3d8c11efd528d56972d44ed0de51c4e11a9a4fa9",
        "lessThan": "54e131db4cdffd946db890ff33ff2647053fd4f6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3d8c11efd528d56972d44ed0de51c4e11a9a4fa9",
        "lessThan": "55cc6fe5716f678f06bcb95140882dfa684464ec",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/firmware/efi/cper.c"
    ],
    "versions": [
      {
        "version": "5.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.252",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.202",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.165",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.128",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.16",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.6",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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