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CVE-2026-23138 tracing: Add recursion protection in kernel stack trace recording

🗓️ 14 Feb 2026 15:22:23Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 22 Views

Kernel tracing stack trace recursion protection prevents infinite recursion when tracing RCU events using context bits.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/linux/trace_recursion.h",
      "kernel/trace/trace.c"
    ],
    "versions": [
      {
        "version": "5f5fa7ea89dc82d34ed458f4d7a8634e8e9eefce",
        "lessThan": "9b03768037d91ce727effb1c5d92d2c7781bf692",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5f5fa7ea89dc82d34ed458f4d7a8634e8e9eefce",
        "lessThan": "19e18e6dabb1bbba76d2809ca7d8ae9e1f5975fe",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5f5fa7ea89dc82d34ed458f4d7a8634e8e9eefce",
        "lessThan": "5b7f91acffd2c4c000971553d22efa1e1bb4feae",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5f5fa7ea89dc82d34ed458f4d7a8634e8e9eefce",
        "lessThan": "5f1ef0dfcb5b7f4a91a9b0e0ba533efd9f7e2cdb",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/linux/trace_recursion.h",
      "kernel/trace/trace.c"
    ],
    "versions": [
      {
        "version": "5.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.130",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.78",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.6",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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