default or selected kernelversion does not have config value CONFIG_UBSAN_NO_ALIGNMENT.
Result is shown for kernelversion 6.9.8

Disable checking of pointers alignment

configname: CONFIG_UBSAN_NO_ALIGNMENT

Linux Kernel Configuration
└─>Kernel hacking
└─>Disable checking of pointers alignment
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This option disables the check of unaligned memory accesses.
This option should be used when building allmodconfig.
Disabling this option on architectures that support unaligned
accesses may produce a lot of false positives.

depends
CONFIG_UBSAN