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* [PATCH] lkdtm/bugs: Switch from 1-element array to flexible array
@ 2023-05-22 21:29 Kees Cook
  2023-05-22 22:38 ` Bill Wendling
  2023-05-23  1:57 ` kernel test robot
  0 siblings, 2 replies; 3+ messages in thread
From: Kees Cook @ 2023-05-22 21:29 UTC (permalink / raw)
  To: Arnd Bergmann
  Cc: Kees Cook, Greg Kroah-Hartman, linux-kernel, linux-hardening

The testing for ARRAY_BOUNDS just wants an uninstrumented array,
and the proper flexible array definition is fine for that.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
 drivers/misc/lkdtm/bugs.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/misc/lkdtm/bugs.c b/drivers/misc/lkdtm/bugs.c
index 48821f4c2b21..224f42cdddf2 100644
--- a/drivers/misc/lkdtm/bugs.c
+++ b/drivers/misc/lkdtm/bugs.c
@@ -305,11 +305,10 @@ static void lkdtm_OVERFLOW_UNSIGNED(void)
 	ignored = value;
 }
 
-/* Intentionally using old-style flex array definition of 1 byte. */
 struct array_bounds_flex_array {
 	int one;
 	int two;
-	char data[1];
+	char data[];
 };
 
 struct array_bounds {
-- 
2.34.1


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2023-05-22 21:29 [PATCH] lkdtm/bugs: Switch from 1-element array to flexible array Kees Cook
2023-05-22 22:38 ` Bill Wendling
2023-05-23  1:57 ` kernel test robot

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