From: Kees Cook <keescook@xxxxxxxxxxxx> [ Upstream commit e36b70fb8c707a0688960184380bc151390d671b ] The early boot stub for sh had UBSan instrumentation present where it is not supported. Disable it for this part of the build. sh4-linux-ld: arch/sh/boot/compressed/misc.o: in function `zlib_inflate_table': misc.c:(.text+0x670): undefined reference to `__ubsan_handle_shift_out_of_bounds' Reported-by: kernel test robot <lkp@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202401310416.s8HLiLnC-lkp@xxxxxxxxx/ Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx> Cc: Rich Felker <dalias@xxxxxxxx> Cc: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx> Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx> Cc: Nicolas Schier <n.schier@xxxxxx> Cc: <linux-sh@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20240130232717.work.088-kees@xxxxxxxxxx Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- arch/sh/boot/compressed/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile index f5e1bd7797892..362f2c9f9f7fc 100644 --- a/arch/sh/boot/compressed/Makefile +++ b/arch/sh/boot/compressed/Makefile @@ -13,6 +13,7 @@ targets := vmlinux vmlinux.bin vmlinux.bin.gz \ OBJECTS = $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/cache.o GCOV_PROFILE := n +UBSAN_SANITIZE := n # # IMAGE_OFFSET is the load offset of the compression loader -- 2.43.0
