kernelconfig_penguin
default or selected kernelversion does not have config value CONFIG_ADDRESS_MASKING.
Result is shown for kernelversion 6.4-rc4
depends
CONFIG_X86_64

Linear Address Masking support

configname: CONFIG_ADDRESS_MASKING

Linux Kernel Configuration
└─> Processor type and features
└─> Linear Address Masking support

Linear Address Masking (LAM) modifies the checking that is applied
to 64-bit linear addresses, allowing software to use of the
untranslated address bits for metadata.

The capability can be used for efficient address sanitizers (ASAN)
implementation and for optimizations in JITs.