PT-2024-8359 · Linux+3 · Linux Kernel+3
Stefan Haberland
·
Published
2022-09-19
·
Updated
2025-03-11
·
CVE-2022-48636
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a resource management error in the s390/dasd component of the Linux kernel. It is caused by a race window between the
dasd alias get start dev() function and the lcu update() function, which sets the pavgroup pointer to NULL. This can lead to a denial of service. The pavgroup pointer is checked at the entrance of the dasd alias get start dev() function, but without holding the lcu->lock.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Red Os
Suse