** Changed in: ubuntu-z-systems
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1960875
Title:
[UBUNTU 21.10] s390/cio: verify the driver availability for path_event
call
Status in Ubuntu on IBM z Systems:
In Progress
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Impish:
In Progress
Status in linux source package in Jammy:
In Progress
Bug description:
Description: s390/cio: verify the driver availability for path_event call
Symptom: If no driver is attached to a device or the driver does not
provide the path_event function, an FCES path-event on this
device could end up in a kernel-panic.
Problem: There can be path-event generated for devices which are not
bound to any drivers. And this is not verified before
callback.
Solution: Make sure the driver is available before the callback.
Reproduction: -
Upstream-ID: dd9cb842fa9d90653a9b48aba52f89c069f3bc50
Problem-ID: 196414
Distros: Ubuntu 21.10 and higher
Preventive: yes
Reported: -
SupportTicket: -
Reference: -
Date: 2022-02-14
Author: Vineeth Vijayan <[email protected]>
Component: kernel
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