CVE-2024-27009
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-27009
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27009.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-27009
- Downstream
- Related
- Published
- 2024-05-01T06:15:19Z
- Modified
- 2025-09-18T14:20:42Z
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
s390/cio: fix race condition during online processing
A race condition exists in ccwdeviceset_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.
- References
-
- https://git.kernel.org/stable/c/2d8527f2f911fab84aec04df4788c0c23af3df48
- https://git.kernel.org/stable/c/2df56f4ea769ff81e51bbb05699989603bde9c49
- https://git.kernel.org/stable/c/3076b3c38a704e10df5e143c213653309d532538
- https://git.kernel.org/stable/c/559f3a6333397ab6cd4a696edd65a70b6be62c6e
- https://git.kernel.org/stable/c/a4234decd0fe429832ca81c4637be7248b88b49e