lkml.org 
[lkml]   [2003]   [Aug]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] missing copy_from_user check in comx_proto_lapb driver
Date
diff -urpN --exclude-from=/home/davej/.exclude bk-linus/drivers/net/wan/comx-proto-lapb.c linux-2.5/drivers/net/wan/comx-proto-lapb.c
--- bk-linus/drivers/net/wan/comx-proto-lapb.c 2003-05-20 18:41:21.000000000 +0100
+++ linux-2.5/drivers/net/wan/comx-proto-lapb.c 2003-07-13 06:04:34.000000000 +0100
@@ -232,7 +232,10 @@ static int comxlapb_write_proc(struct fi
return -ENOMEM;
}

- copy_from_user(page, buffer, count);
+ if (copy_from_user(page, buffer, count)) {
+ free_page((unsigned long)page);
+ return -EFAULT;
+ }
if (*(page + count - 1) == '\n') {
*(page + count - 1) = 0;
}
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2005-03-22 13:47    [W:1.579 / U:0.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site