From: Rostislav Lisovy <lisovy@gmail.com>
Date: Thu, 16 Feb 2012 15:14:53 +0000 (+0100)
Subject: sllin: Fixed potential invalid pointer dereference.
X-Git-Url: http://rtime.felk.cvut.cz/gitweb/linux-lin.git/commitdiff_plain/1098d3c4c045a6a1919b209476d27a07b2f13fce

sllin: Fixed potential invalid pointer dereference.
---

diff --git a/sllin/sllin.c b/sllin/sllin.c
index 4f4da0f..601979a 100644
--- a/sllin/sllin.c
+++ b/sllin/sllin.c
@@ -524,13 +524,11 @@ static void sllin_slave_receive_buf(struct tty_struct *tty,
 			/* We did not receive break (0x00) character */
 			if ((sl->rx_cnt == SLLIN_BUFF_BREAK) && (*cp == 0x55)) {
 				sl->rx_buff[sl->rx_cnt++] = 0x00;
-				sl->rx_buff[sl->rx_cnt++] = 0x55;
-				cp++;
 			}
 
 			if (sl->rx_cnt == SLLIN_BUFF_SYNC) {
 				/* 'Duplicated' break character -- ignore */
-				if ((*cp == 0x00) && (*(cp + 1) == 0x55)) {
+				if (*cp == 0x00) {
 					cp++;
 					continue;
 				}