When copying the command line buffer the target array should
at least have the same size.

Cf. definition of console_buffer in common/cli_readline.c.

Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
 common/command.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/command.c b/common/command.c
index e5d9b9cf95..21a6d409fb 100644
--- a/common/command.c
+++ b/common/command.c
@@ -318,7 +318,7 @@ static int find_common_prefix(char * const argv[])
        return len;
 }
 
-static char tmp_buf[CONFIG_SYS_CBSIZE];        /* copy of console I/O buffer   
*/
+static char tmp_buf[CONFIG_SYS_CBSIZE + 1];    /* copy of console I/O buffer */
 
 int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp)
 {
-- 
2.15.0

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