default or selected kernelversion does not have config value CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE.
Result is shown for kernelversion 6.8.2

Maximum kmemleak early log entries

configname: CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE

Linux Kernel Configuration
└─>Kernel hacking
└─>Memory Debugging
└─>Maximum kmemleak early log entries
In linux kernel since version 2.6.31 (release Date: 2009-09-09)  
Kmemleak must track all the memory allocations to avoid
reporting false positives. Since memory may be allocated or
freed before kmemleak is initialised, an early log buffer is
used to store these actions. If kmemleak reports "early log
buffer exceeded", please increase this value.