ERROR: no HWRNG available!
WARNING: stackprot: proceeding without randomized stack protector
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
lib/stackprot.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/lib/stackprot.c b/lib/stackprot.c
index aa0e88603aae..c1cc19aadd09 100644
--- a/lib/stackprot.c
+++ b/lib/stackprot.c
@@ -1,5 +1,8 @@
/* SPDX-License-Identifier: GPL-2.0-only */
-#include <printk.h>
+
+#define pr_fmt(fmt) "stackprot: " fmt
+
+#include <linux/printk.h>
#include <linux/kernel.h>
#include <linux/export.h>
#include <init.h>
@@ -27,6 +30,11 @@ EXPORT_SYMBOL(__stack_chk_fail);
static __no_stack_protector int stackprot_randomize_guard(void)
{
- return get_crypto_bytes(&__stack_chk_guard, sizeof(__stack_chk_guard));
+ int ret;
+
+ ret = get_crypto_bytes(&__stack_chk_guard, sizeof(__stack_chk_guard));
+ if (ret)
+ pr_warn("proceeding without randomized stack protector\n");
+ return 0;
}
late_initcall(stackprot_randomize_guard);
--
2.39.2
