{"id":"CVE-2024-27009","summary":"s390/cio: fix race condition during online processing","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.","modified":"2026-04-16T04:33:58.400171899Z","published":"2024-05-01T05:29:18.671Z","related":["SUSE-SU-2025:20008-1","SUSE-SU-2025:20028-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27009.json","cna_assigner":"Linux"},"references":[{"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/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27009.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-27009"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"2297791c92d04a154ad29ba5a073f9f627982110"},{"fixed":"3076b3c38a704e10df5e143c213653309d532538"},{"fixed":"559f3a6333397ab6cd4a696edd65a70b6be62c6e"},{"fixed":"2df56f4ea769ff81e51bbb05699989603bde9c49"},{"fixed":"a4234decd0fe429832ca81c4637be7248b88b49e"},{"fixed":"2d8527f2f911fab84aec04df4788c0c23af3df48"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27009.json"}}],"schema_version":"1.7.5"}