PT-2024-14737 · Linux+3 · Linux Kernel+3
Jan Höppner
+1
·
Published
2023-10-25
·
Updated
2025-02-03
·
CVE-2023-52774
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 concerns the Linux kernel, specifically the s390/dasd component, where the device queue is not protected against concurrent access. In the
dasd profile start() function, the amount of requests on the device queue is counted, but this access is unprotected, leading to potential kernel panics due to incorrect pointer accesses, especially with parallel I/O and alias devices enabled. The fix involves taking the device lock before accessing the queue and counting requests, and checking for a valid profile data pointer earlier to avoid unnecessary locking.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
Improper Locking
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Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Red Os
Suse