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CVE-2025-68333 sched_ext: Fix possible deadlock in the deferred_irq_workfn()

🗓️ 22 Dec 2025 16:14:11Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 21 Views

Fix possible deadlock in deferred_irq_workfn() on preempt real time by using IRQ_WORK_INIT_HARD for initialization.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/sched/ext.c"
    ],
    "versions": [
      {
        "version": "5b26f7b920f76b2b9cc398c252a9e35e44bf5bb9",
        "lessThan": "541959b2fadb832a7d0ceb95041dc52bdcf6bff7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5b26f7b920f76b2b9cc398c252a9e35e44bf5bb9",
        "lessThan": "600b4379b9a7ba41340d652211fb29699da4c629",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5b26f7b920f76b2b9cc398c252a9e35e44bf5bb9",
        "lessThan": "a257e974210320ede524f340ffe16bf4bf0dda1e",
        "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/sched/ext.c"
    ],
    "versions": [
      {
        "version": "6.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.68",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17.12",
        "lessThanOrEqual": "6.17.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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