Re: [PATCH] bug in sock.c

[Jeroen Vreeken]

This patch is so popular that some people requested it again but this time
inline :)

So here it is again:

--- linux-2.4.13/net/core/sock.c        Fri Nov 15 21:12:38 2001
+++ linux/net/core/sock.c       Fri Nov 16 20:53:55 2001
@@ -81,6 +81,7 @@
  *             Andi Kleen      :       Fix write_space callback
  *             Chris Evans     :       Security fixes - signedness again
  *             Arnaldo C. Melo :       cleanups, use skb_queue_purge
+ *             Jeroen Vreeken  :       Add check for sk->dead in
sock_def_write_space
  *
  * To Fix:
  *
@@ -1130,7 +1131,7 @@
        /* Do not wake up a writer until he can make "significant"
         * progress.  --DaveM
         */
-       if((atomic_read(&sk->wmem_alloc) << 1) <= sk->sndbuf) {
+       if(!sk->dead && (atomic_read(&sk->wmem_alloc) << 1) <= sk->sndbuf)
{
                if (sk->sleep && waitqueue_active(sk->sleep))
                        wake_up_interruptible(sk->sleep);