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| author | Francis Laniel <laniel_francis@privacyrequired.com> | 2020-12-16 05:43:54 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-16 07:46:16 +0100 |
| commit | febebaf366868a4204deb3955ef5dda17f676fc1 (patch) | |
| tree | ecad89f7e968a84ea586af705e4404890bbb2a8b /drivers/misc/lkdtm/Makefile | |
| parent | string.h: add FORTIFY coverage for strscpy() (diff) | |
| download | linux-febebaf366868a4204deb3955ef5dda17f676fc1.tar.xz linux-febebaf366868a4204deb3955ef5dda17f676fc1.zip | |
drivers/misc/lkdtm: add new file in LKDTM to test fortified strscpy
This new test ensures that fortified strscpy has the same behavior than
vanilla strscpy (e.g. returning -E2BIG when src content is truncated).
Finally, it generates a crash at runtime because there is a write overflow
in destination string.
Link: https://lkml.kernel.org/r/20201122162451.27551-5-laniel_francis@privacyrequired.com
Signed-off-by: Francis Laniel <laniel_francis@privacyrequired.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Daniel Axtens <dja@axtens.net>
Cc: Daniel Micay <danielmicay@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc/lkdtm/Makefile')
| -rw-r--r-- | drivers/misc/lkdtm/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/misc/lkdtm/Makefile b/drivers/misc/lkdtm/Makefile index 1ef7888a12b5..7727bfd32be9 100644 --- a/drivers/misc/lkdtm/Makefile +++ b/drivers/misc/lkdtm/Makefile @@ -10,6 +10,7 @@ lkdtm-$(CONFIG_LKDTM) += rodata_objcopy.o lkdtm-$(CONFIG_LKDTM) += usercopy.o lkdtm-$(CONFIG_LKDTM) += stackleak.o lkdtm-$(CONFIG_LKDTM) += cfi.o +lkdtm-$(CONFIG_LKDTM) += fortify.o KASAN_SANITIZE_rodata.o := n KASAN_SANITIZE_stackleak.o := n |