free(): invalid pointer error -- while compiling the linux kernel

[psygreg]

Stacktrace as requested when the bug occurred:

[EugeneZelenko]

Could you please provide reproducer?

[psygreg]

The make command given was make CC=clang LD=ld.lld LLVM=1 LLVM_IAS=1 binrpm-pkg -j"$(($(nproc) - 1))". In kernel config, LTO_CLANG_THIN was enabled. OS used was Fedora Silverblue 42.

The issue also seems to go away if grubby is installed, even though the reasons for that are unclear.

[psygreg]

If you'd like a read on the versions of dependencies:

# Automatically generated file; DO NOT EDIT.
# Linux/x86 6.15.7 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="clang version 20.1.8 (Fedora 20.1.8-1.fc42)"
CONFIG_GCC_VERSION=0
CONFIG_CC_IS_CLANG=y
CONFIG_CLANG_VERSION=200108
CONFIG_AS_IS_LLVM=y
CONFIG_AS_VERSION=200108
CONFIG_LD_VERSION=0
CONFIG_LD_IS_LLD=y
CONFIG_LLD_VERSION=200108
CONFIG_RUSTC_VERSION=108800
CONFIG_RUSTC_LLVM_VERSION=200107
CONFIG_CC_CAN_LINK=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT=y
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_CC_HAS_COUNTED_BY=y
CONFIG_RUSTC_HAS_COERCE_POINTEE=y
CONFIG_RUSTC_HAS_UNNECESSARY_TRANSMUTES=y
CONFIG_PAHOLE_VERSION=130
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y