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s390/kasan: avoid vdso instrumentation

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[ Upstream commit 348498458505e202df41b6b9a78da448d39298b7 ]

vdso is mapped into user space processes, which won't have kasan
shodow mapped.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Vasily Gorbik 2017-11-17 13:02:36 +01:00 committed by Greg Kroah-Hartman
parent 0046af3830
commit 5228d07c4f
2 changed files with 4 additions and 2 deletions
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3
arch/s390/kernel/vdso32/Makefile
View file

@ -28,9 +28,10 @@ obj-y += vdso32_wrapper.o
extra-y += vdso32.lds
CPPFLAGS_vdso32.lds += -P -C -U$(ARCH)
# Disable gcov profiling and ubsan for VDSO code
# Disable gcov profiling, ubsan and kasan for VDSO code
GCOV_PROFILE := n
UBSAN_SANITIZE := n
KASAN_SANITIZE := n
# Force dependency (incbin is bad)
$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so

3
arch/s390/kernel/vdso64/Makefile
View file

@ -28,9 +28,10 @@ obj-y += vdso64_wrapper.o
extra-y += vdso64.lds
CPPFLAGS_vdso64.lds += -P -C -U$(ARCH)
# Disable gcov profiling and ubsan for VDSO code
# Disable gcov profiling, ubsan and kasan for VDSO code
GCOV_PROFILE := n
UBSAN_SANITIZE := n
KASAN_SANITIZE := n
# Force dependency (incbin is bad)
$(obj)/vdso64_wrapper.o : $(obj)/vdso64.so