From 30c4ae42317666f3aeed658cdb8803c84ac6fe77 Mon Sep 17 00:00:00 2001
From: Michael Buesch <mb@bu3sch.de>
Date: Fri, 2 Nov 2007 18:35:02 +0100
Subject: [PATCH] b43: debugfs SHM read buffer overrun fix
Fix possible buffer overrun.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/b43/debugfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/b43/debugfs.c b/drivers/net/wireless/b43/debugfs.c
index 734e70e1a06d..ef0075d9f9cb 100644
--- a/drivers/net/wireless/b43/debugfs.c
+++ b/drivers/net/wireless/b43/debugfs.c
@@ -128,7 +128,7 @@ static ssize_t shm_read_file(struct b43_wldev *dev,
__le16 *le16buf = (__le16 *)buf;
for (i = 0; i < 0x1000; i++) {
- if (bufsize <= 0)
+ if (bufsize < sizeof(tmp))
break;
tmp = b43_shm_read16(dev, B43_SHM_SHARED, 2 * i);
le16buf[i] = cpu_to_le16(tmp);
--
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