ghsa-g3g5-xm8m-gp96
Vulnerability from github
Published
2024-05-01 06:31
Modified
2024-05-03 03:30
Details

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

s390/cio: fix race condition during online processing

A race condition exists in ccw_device_set_online() that can cause the online process to fail, leaving the affected device in an inconsistent state. As a result, subsequent attempts to set that device online fail with return code ENODEV.

The problem occurs when a path verification request arrives after a wait for final device state completed, but before the result state is evaluated.

Fix this by ensuring that the CCW-device lock is held between determining final state and checking result state.

Note that since:

commit 2297791c92d0 ("s390/cio: dont unregister subchannel from child-drivers")

path verification requests are much more likely to occur during boot, resulting in an increased chance of this race condition occurring.

Show details on source website

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{
   affected: [],
   aliases: [
      "CVE-2024-27009",
   ],
   database_specific: {
      cwe_ids: [],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-05-01T06:15:19Z",
      severity: null,
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/cio: fix race condition during online processing\n\nA race condition exists in ccw_device_set_online() that can cause the\nonline process to fail, leaving the affected device in an inconsistent\nstate. As a result, subsequent attempts to set that device online fail\nwith return code ENODEV.\n\nThe problem occurs when a path verification request arrives after\na wait for final device state completed, but before the result state\nis evaluated.\n\nFix this by ensuring that the CCW-device lock is held between\ndetermining final state and checking result state.\n\nNote that since:\n\ncommit 2297791c92d0 (\"s390/cio: dont unregister subchannel from child-drivers\")\n\npath verification requests are much more likely to occur during boot,\nresulting in an increased chance of this race condition occurring.",
   id: "GHSA-g3g5-xm8m-gp96",
   modified: "2024-05-03T03:30:47Z",
   published: "2024-05-01T06:31:43Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-27009",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/2d8527f2f911fab84aec04df4788c0c23af3df48",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/2df56f4ea769ff81e51bbb05699989603bde9c49",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/3076b3c38a704e10df5e143c213653309d532538",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/559f3a6333397ab6cd4a696edd65a70b6be62c6e",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/a4234decd0fe429832ca81c4637be7248b88b49e",
      },
      {
         type: "WEB",
         url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53",
      },
      {
         type: "WEB",
         url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY",
      },
      {
         type: "WEB",
         url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW",
      },
   ],
   schema_version: "1.4.0",
   severity: [],
}


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