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CVE-2025-39745 rcutorture: Fix rcutorture_one_extend_check() splat in RT kernels

🗓️ 11 Sep 2025 16:52:18Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

Fix rcutorture_one_extend_check() splat in real-time kernels by using softirq_count() for bottom half disablement.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/rcu/rcutorture.c"
    ],
    "versions": [
      {
        "version": "ec9d6356bfda69abe5f4767dd56c964127913233",
        "lessThan": "a85550267247cdf5e7499be00ea8e388ab014e50",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ec9d6356bfda69abe5f4767dd56c964127913233",
        "lessThan": "69c5ae0f441c2d72e8f48dc1e08464c172360c4c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ec9d6356bfda69abe5f4767dd56c964127913233",
        "lessThan": "8d71351d88e478d3c4e945e3218e97ec677fd807",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/rcu/rcutorture.c"
    ],
    "versions": [
      {
        "version": "6.14",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.14",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.15.11",
        "lessThanOrEqual": "6.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.2",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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