Linux Kernel 7.2 Removes Deprecated strncpy API

The Linux kernel version 7.2 has officially removed the strncpy API, which had been long deprecated due to inherent bugs and security vulnerabilities.

Over the past six years, approximately 362 commits replaced all uses of strncpy with safer alternatives.

The removal marks the culmination of a six-year effort to eliminate a function notorious for introducing buffer overflow and string termination issues.

Developers are now advised to use the following functions depending on their specific copying requirements:

• strscpy()
• strscpy_pad()
• strtomem_pad()
• memcpy_and_pad()
• memcpy()

Each of these alternatives addresses the safety shortcomings of strncpy, ensuring more predictable behavior and reducing the risk of memory corruption.

The transition reflects the kernel community's ongoing commitment to improving code security and reliability. By removing deprecated APIs, the project encourages developers to adopt modern, safer practices that prevent common programming errors at a fundamental level.