ghsa-vjcw-7f57-9vvv
Vulnerability from github
Published
2025-08-16 12:30
Modified
2025-08-16 12:30
Details

In the Linux kernel, the following vulnerability has been resolved:

kasan: remove kasan_find_vm_area() to prevent possible deadlock

find_vm_area() couldn't be called in atomic_context. If find_vm_area() is called to reports vm area information, kasan can trigger deadlock like:

CPU0 CPU1 vmalloc(); alloc_vmap_area(); spin_lock(&vn->busy.lock) spin_lock_bh(&some_lock); spin_lock(&some_lock); kasan_report(); print_report(); print_address_description(); kasan_find_vm_area(); find_vm_area(); spin_lock(&vn->busy.lock) // deadlock!

To prevent possible deadlock while kasan reports, remove kasan_find_vm_area().

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2025-38510"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-16T11:15:44Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nkasan: remove kasan_find_vm_area() to prevent possible deadlock\n\nfind_vm_area() couldn\u0027t be called in atomic_context.  If find_vm_area() is\ncalled to reports vm area information, kasan can trigger deadlock like:\n\nCPU0                                CPU1\nvmalloc();\n alloc_vmap_area();\n  spin_lock(\u0026vn-\u003ebusy.lock)\n                                    spin_lock_bh(\u0026some_lock);\n   \u003cinterrupt occurs\u003e\n   \u003cin softirq\u003e\n   spin_lock(\u0026some_lock);\n                                    \u003caccess invalid address\u003e\n                                    kasan_report();\n                                     print_report();\n                                      print_address_description();\n                                       kasan_find_vm_area();\n                                        find_vm_area();\n                                         spin_lock(\u0026vn-\u003ebusy.lock) // deadlock!\n\nTo prevent possible deadlock while kasan reports, remove kasan_find_vm_area().",
  "id": "GHSA-vjcw-7f57-9vvv",
  "modified": "2025-08-16T12:30:32Z",
  "published": "2025-08-16T12:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38510"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0c3566d831def922cd56322c772a7b20d8b0e0c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d89dab1ea6086e6cbe6fe92531b496fb6808cb9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/595f78d99b9051600233c0a5c4c47e1097e6ed01"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ee9b3d84775944fb8c8a447961cd01274ac671c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8377d7744bdce5c4b3f1b58924eebd3fdc078dfc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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