From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH master 1/2] KASan: test_kasan: silence warning with newer GCC
Date: Mon, 12 Dec 2022 17:39:06 +0100 [thread overview]
Message-ID: <20221212163907.2356192-1-a.fatoum@pengutronix.de> (raw)
Newer GCC will rightly complain about this being an out-of-bounds
access. This is intended as the kasan command is meant to cause
out-of-bounds accesses to test proper operation of KASan.
Thus silence the warning for this specific instance.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
lib/kasan/test_kasan.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/kasan/test_kasan.c b/lib/kasan/test_kasan.c
index d0ea91547711..14511cdb80bd 100644
--- a/lib/kasan/test_kasan.c
+++ b/lib/kasan/test_kasan.c
@@ -290,6 +290,8 @@ static noinline void kasan_alloca_oob_left(void)
char alloca_array[i];
char *p = alloca_array - 1;
+ OPTIMIZER_HIDE_VAR(p);
+
pr_info("out-of-bounds to left on alloca\n");
*(volatile char *)p;
}
--
2.30.2
next reply other threads:[~2022-12-12 16:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-12 16:39 Ahmad Fatoum [this message]
2022-12-12 16:39 ` [PATCH master 2/2] KASan: fix handling of devices with MMIO above SDRAM memory region Ahmad Fatoum
2022-12-13 8:37 ` [PATCH master 1/2] KASan: test_kasan: silence warning with newer GCC Sascha Hauer
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