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authorFrancis Laniel <laniel_francis@privacyrequired.com>2020-12-15 20:43:54 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 22:46:16 -0800
commitfebebaf366868a4204deb3955ef5dda17f676fc1 (patch)
treeecad89f7e968a84ea586af705e4404890bbb2a8b /tools
parent33e56a59e64dfb68778e5da0be13f0c47dc5d445 (diff)
downloadlinux-febebaf366868a4204deb3955ef5dda17f676fc1.tar.bz2
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 'tools')
-rw-r--r--tools/testing/selftests/lkdtm/tests.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/lkdtm/tests.txt b/tools/testing/selftests/lkdtm/tests.txt
index 74a8d329a72c..92ba4cc41314 100644
--- a/tools/testing/selftests/lkdtm/tests.txt
+++ b/tools/testing/selftests/lkdtm/tests.txt
@@ -68,3 +68,4 @@ USERCOPY_STACK_BEYOND
USERCOPY_KERNEL
STACKLEAK_ERASING OK: the rest of the thread stack is properly erased
CFI_FORWARD_PROTO
+FORTIFIED_STRSCPY