From 187a9dca3f2f90341e321a3998a5b0c74111f77c Mon Sep 17 00:00:00 2001
From: Stefano Brivio <stefano.brivio@polimi.it>
Date: Tue, 6 Nov 2007 22:48:36 +0100
Subject: [PATCH] b43legacy: fix possible buffer overrun in debugfs
Fix possible buffer overrun.
The patch to b43 by Michael Buesch <mb@bu3sch.de> has been ported to
b43legacy.
Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/b43legacy/debugfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/b43legacy/debugfs.c b/drivers/net/wireless/b43legacy/debugfs.c
index eefa6fb79685..619b4534ef09 100644
--- a/drivers/net/wireless/b43legacy/debugfs.c
+++ b/drivers/net/wireless/b43legacy/debugfs.c
@@ -124,7 +124,7 @@ static ssize_t shm_read_file(struct b43legacy_wldev *dev, char *buf, size_t bufs
__le16 *le16buf = (__le16 *)buf;
for (i = 0; i < 0x1000; i++) {
- if (bufsize <= 0)
+ if (bufsize < sizeof(tmp))
break;
tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 2 * i);
le16buf[i] = cpu_to_le16(tmp);
--
GitLab