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CVE-2022-49977 ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead

🗓️ 18 Jun 2025 11:00:39Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

Fixed NULL pointer dereference in ftrace when ftrace is disabled in Linux kernel functions.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/trace/ftrace.c"
    ],
    "versions": [
      {
        "version": "8a56d7761d2d041ae5e8215d20b4167d8aa93f51",
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        "status": "affected",
        "versionType": "git"
      },
      {
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        "status": "affected",
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      },
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      },
      {
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      {
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      {
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      },
      {
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      },
      {
        "version": "3.2.54",
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    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/trace/ftrace.c"
    ],
    "versions": [
      {
        "version": "3.13",
        "status": "affected"
      },
      {
        "version": "0",
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        "status": "unaffected",
        "versionType": "semver"
      },
      {
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        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.257",
        "lessThanOrEqual": "4.19.*",
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        "versionType": "semver"
      },
      {
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        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.141",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.65",
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        "status": "unaffected",
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      },
      {
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        "versionType": "semver"
      },
      {
        "version": "6.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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