D31045.diff
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	diff --git a/lib/libc/string/Makefile.inc b/lib/libc/string/Makefile.inc
	--- a/lib/libc/string/Makefile.inc
	+++ b/lib/libc/string/Makefile.inc
	@@ -29,6 +29,15 @@

	SYM_MAPS+= ${LIBC_SRCTOP}/string/Symbol.map

	+.if ${MK_ASAN} != "no"
	+# These source files deliberately read out of bounds since they assume that
	+# out-of-bounds memory accesses that don't cross pages are always legal.
	+# Note: While this is fine on x86, it does break when running with CHERI.
	+CFLAGS.strlen.c+= -fno-sanitize=address
	+CFLAGS.strchrnul.c+= -fno-sanitize=address
	+CFLAGS.memchr.c+= -fno-sanitize=address
	+.endif
	+

	# machine-dependent string sources
	.sinclude "${LIBC_SRCTOP}/${LIBC_ARCH}/string/Makefile.inc"