ghsa-482q-8xhf-gxrw
Vulnerability from github
Published
2025-07-25 18:30
Modified
2025-07-25 18:30
Details

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

vsock: Fix transport_* TOCTOU

Transport assignment may race with module unload. Protect new_transport from becoming a stale pointer.

This also takes care of an insecure call in vsock_use_local_transport(); add a lockdep assert.

BUG: unable to handle page fault for address: fffffbfff8056000 Oops: Oops: 0000 [#1] SMP KASAN RIP: 0010:vsock_assign_transport+0x366/0x600 Call Trace: vsock_connect+0x59c/0xc40 __sys_connect+0xe8/0x100 __x64_sys_connect+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38461"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T16:15:31Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: Fix transport_* TOCTOU\n\nTransport assignment may race with module unload. Protect new_transport\nfrom becoming a stale pointer.\n\nThis also takes care of an insecure call in vsock_use_local_transport();\nadd a lockdep assert.\n\nBUG: unable to handle page fault for address: fffffbfff8056000\nOops: Oops: 0000 [#1] SMP KASAN\nRIP: 0010:vsock_assign_transport+0x366/0x600\nCall Trace:\n vsock_connect+0x59c/0xc40\n __sys_connect+0xe8/0x100\n __x64_sys_connect+0x6e/0xc0\n do_syscall_64+0x92/0x1c0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53",
  "id": "GHSA-482q-8xhf-gxrw",
  "modified": "2025-07-25T18:30:40Z",
  "published": "2025-07-25T18:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38461"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36a439049b34cca0b3661276049b84a1f76cc21a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/687aa0c5581b8d4aa87fd92973e4ee576b550cdf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b73bddf54777fb62d4d8c7729d0affe6df04477"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8667e8d0eb46bc54fdae30ba2f4786407d3d88eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ce53e744f18e73059d3124070e960f3aa9902bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d24bb6780282b0255b9929abe5e8f98007e2c6e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae2c712ba39c7007de63cb0c75b51ce1caaf1da5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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