PT-2025-18820 · Linux+5 · Linux Kernel+5
Published
2023-03-12
·
Updated
2026-01-28
·
CVE-2023-53056
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 versions prior to the fixed version
Description
A system hang was observed due to the IOCB counts being out of order, blocking commands and subsequently hanging the system. The issue was resolved by synchronizing the IOCB count to be in the correct order. A kernel NULL pointer dereference was also observed, which was addressed by the same fix.
Recommendations
For Linux kernel versions prior to the fixed version, update to the latest version to resolve the issue. As a temporary workaround, consider disabling the
qla nvme ls req function until a patch is available. Restrict access to the vulnerable nvme fc module to minimize the risk of exploitation. Avoid using the nvme fc xmt disconnect assoc function in the affected API endpoint until the issue is resolved.Exploit
Fix
DoS
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Centos
Linux Kernel
Red Hat
Red Os
Suse