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authorStefano Brivio <stefano.brivio@polimi.it>2007-11-06 22:48:36 +0100
committerJeff Garzik <jeff@garzik.org>2007-11-10 04:25:13 -0500
commit187a9dca3f2f90341e321a3998a5b0c74111f77c (patch)
tree1de4b4f1ac9d2b57caa600eca80739d7f7e52bed
parentb43: Rewrite and fix rfkill init (diff)
downloadlinux-dev-187a9dca3f2f90341e321a3998a5b0c74111f77c.tar.xz
linux-dev-187a9dca3f2f90341e321a3998a5b0c74111f77c.zip
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>
-rw-r--r--drivers/net/wireless/b43legacy/debugfs.c2
1 files changed, 1 insertions, 1 deletions
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);