Re: [patchset] Fix sign handling bugs in 2.5 -- 4/5; tun

From: Ravikiran G Thirumalai (kiran@in.ibm.com)
Date: Thu Jun 12 2003 - 02:07:47 EST

--- linux-2.5.70/drivers/net/tun.c Tue May 27 06:30:39 2003
+++ shb-tun-2.5.70/drivers/net/tun.c Wed Jun 11 16:37:46 2003
@@ -185,7 +185,7 @@
         size_t len = count;
 
         if (!(tun->flags & TUN_NO_PI)) {
- if ((len -= sizeof(pi)) < 0)
+ if ((len -= sizeof(pi)) > len)
                         return -EINVAL;
 
                 memcpy_fromiovec((void *)&pi, iv, sizeof(pi));
-
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