CVE-2023-54102
Published Dec 24, 2025
Modified Apr 15, 2026
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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References
Other References
https://git.kernel.org/stable/c/644a9d5e22761a41d5005a26996a643da96de962
https://git.kernel.org/stable/c/a9df88cb31dcbd72104ec5883f35cbc1fb587e47
https://git.kernel.org/stable/c/ad050f6cf681ebb850a9d4bc19474d3896476301
https://git.kernel.org/stable/c/c6087b82a9146826564a55c5ca0164cac40348f5
https://git.kernel.org/stable/c/e0e7faee3a7dd6f51350cda64997116a247eb045
https://git.kernel.org/stable/c/f91037487036e2d2f18d3c2481be6b9a366bde7f
Frequently Asked Questions
What is CVE-2023-54102? +
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.
How do I check if I'm vulnerable to CVE-2023-54102? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.