CVE-2024-27009
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…
Does this matter?
Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.18% probability · 7th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.