Description
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.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 2297791c92d04a154ad29ba5a073f9f627982110, < 3076b3c38a704e10df5e143c213653309d532538; >= 2297791c92d04a154ad29ba5a073f9f627982110, < 559f3a6333397ab6cd4a696edd65a70b6be62c6e; >= 2297791c92d04a154ad29ba5a073f9f627982110, < 2df56f4ea769ff81e51bbb05699989603bde9c49; >= 2297791c92d04a154ad29ba5a073f9f627982110, < a4234decd0fe429832ca81c4637be7248b88b49e; >= 2297791c92d04a154ad29ba5a073f9f627982110, < 2d8527f2f911fab84aec04df4788c0c23af3df48 |
| Linux | Linux | 5.15 |
References
- https://git.kernel.org/stable/c/2d8527f2f911fab84aec04df4788c0c23af3df48Patch
- https://git.kernel.org/stable/c/2df56f4ea769ff81e51bbb05699989603bde9c49Patch
- https://git.kernel.org/stable/c/3076b3c38a704e10df5e143c213653309d532538Patch
- https://git.kernel.org/stable/c/559f3a6333397ab6cd4a696edd65a70b6be62c6ePatch
- https://git.kernel.org/stable/c/a4234decd0fe429832ca81c4637be7248b88b49ePatch
- https://git.kernel.org/stable/c/2d8527f2f911fab84aec04df4788c0c23af3df48Patch
- https://git.kernel.org/stable/c/2df56f4ea769ff81e51bbb05699989603bde9c49Patch
- https://git.kernel.org/stable/c/3076b3c38a704e10df5e143c213653309d532538Patch
- https://git.kernel.org/stable/c/559f3a6333397ab6cd4a696edd65a70b6be62c6ePatch
- https://git.kernel.org/stable/c/a4234decd0fe429832ca81c4637be7248b88b49ePatch
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/
Timeline
- Published
- May 1, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Modified