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Fixed

LIN1021-20440 : Security Advisory - linux - CVE-2023-54102

Created: Dec 25, 2025    Updated: Dec 27, 2025
Resolved Date: Dec 26, 2025
Found In Version: 10.21.20.2
Fix Version: 10.21.20.19
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Kernel

Description

In the Linux kernel, the following vulnerability has been resolved:

scsi: lpfc: Prevent lpfc_debugfs_lockstat_write() buffer overflow

A static code analysis tool flagged the possibility of buffer overflow when
using copy_from_user() for a debugfs entry.

Currently, it is possible that copy_from_user() copies more bytes than what
would fit in the mybuf char array.  Add a min() restriction check between
sizeof(mybuf) - 1 and nbytes passed from the userspace buffer to protect
against buffer overflow.
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