linux-kernel - [PATCH] kernel: debug: kdb: kdb_main.c: Replacing strncat with strlcat to avoid overwrite size

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Message-Id: <1413141100-21315-1-git-send-email-rickard_strandqvist@spectrumdigital.se>
Date:	Sun, 12 Oct 2014 21:11:40 +0200
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Jason Wessel <jason.wessel@...driver.com>,
	Thomas Gleixner <tglx@...utronix.de>
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Borislav Petkov <bp@...e.de>,
	Kees Cook <keescook@...omium.org>,
	kgdb-bugreport@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: [PATCH] kernel: debug: kdb: kdb_main.c:  Replacing strncat with strlcat to avoid overwrite size

Changed from using strncat with strlcat to avoid overwrite the max size

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
---
 kernel/debug/kdb/kdb_main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 379650b..eb8b6c4 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -1254,7 +1254,7 @@ do_full_getstr:
 		snprintf(kdb_prompt_str, CMD_BUFLEN, kdbgetenv("PROMPT"));
 #endif
 		if (defcmd_in_progress)
-			strncat(kdb_prompt_str, "[defcmd]", CMD_BUFLEN);
+			strlcat(kdb_prompt_str, "[defcmd]", CMD_BUFLEN);
 
 		/*
 		 * Fetch command from keyboard
-- 
1.7.10.4

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