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CVE-2026-80602 perf/x86/amd/lbr: Fix kernel address leakage

🗓️ 28 Aug 2026 06:48:28Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 58 Views

Linux perf AMD LBR leaks kernel addresses to user space via SYSRET/ERET branch records.

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/events/amd/lbr.c"
    ],
    "versions": [
      {
        "version": "f4f925dae7419fc7a10af539c073871927ce3a24",
        "lessThan": "5adfec05e804ce4bd3368b75df5e5b7b40ee960b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f4f925dae7419fc7a10af539c073871927ce3a24",
        "lessThan": "5be478c1e08981ca91b34de310d7e2638171d9d8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f4f925dae7419fc7a10af539c073871927ce3a24",
        "lessThan": "208ecca408b1707ad86ea247d3d3e09d3606fc13",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f4f925dae7419fc7a10af539c073871927ce3a24",
        "lessThan": "5ab0eba9c8819506bcb72348fd701f8a9006f95e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f4f925dae7419fc7a10af539c073871927ce3a24",
        "lessThan": "fb3b76b5ad2ebad63dd76f8b65b624eaf638b73f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f4f925dae7419fc7a10af539c073871927ce3a24",
        "lessThan": "2a892294b83f541115c94b0bb637f39bef187657",
        "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/events/amd/lbr.c"
    ],
    "versions": [
      {
        "version": "6.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.1",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.191",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.97",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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