Don't use 'bounds-strict' checker. It's a new checker that showed up
in GCC 6. It appeared to cause a lot of false positives in dynamically
allocated structs which has array as the last field, e.g:
        [   72.707515] UBSAN: Undefined behaviour in kernel/pid.c:506:23
        [   72.707517] index 2 is out of range for type 'upid [1]'

Anyway, we have KASAN for these kind of bugs, so we won't loose much by
disabling bounds-strict.

Signed-off-by: Andrey Ryabinin <[email protected]>
---
 scripts/Makefile.ubsan | 1 -
 1 file changed, 1 deletion(-)

diff --git a/scripts/Makefile.ubsan b/scripts/Makefile.ubsan
index 0a0b36d..8ab6867 100644
--- a/scripts/Makefile.ubsan
+++ b/scripts/Makefile.ubsan
@@ -6,7 +6,6 @@ ifdef CONFIG_UBSAN
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=null)
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=signed-integer-overflow)
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=bounds)
-      CFLAGS_UBSAN += $(call cc-option, -fsanitize=bounds-strict)
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=object-size)
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=returns-nonnull-attribute)
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=bool)
-- 
2.4.10

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to