diff options
author | Neil Horman <nhorman@tuxdriver.com> | 2006-05-05 17:02:09 -0700 |
---|---|---|
committer | Chris Wright <chrisw@sous-sol.org> | 2006-05-09 12:53:21 -0700 |
commit | 2e2a2cd09dd7b3fbc99a1879a54090fd6db16f0c (patch) | |
tree | 0ec7e0b342f783c4a6ebe9ed083ddec41182041f /net/sctp/inqueue.c | |
parent | cb19baa0bb7a4064e6d0c99e8f479673120a9f28 (diff) |
[PATCH] SCTP: Allow spillover of receive buffer to avoid deadlock. (CVE-2006-2275)
This patch fixes a deadlock situation in the receive path by allowing
temporary spillover of the receive buffer.
- If the chunk we receive has a tsn that immediately follows the ctsn,
accept it even if we run out of receive buffer space and renege data with
higher TSNs.
- Once we accept one chunk in a packet, accept all the remaining chunks
even if we run out of receive buffer space.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Mark Butler <butlerm@middle.net>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Diffstat (limited to 'net/sctp/inqueue.c')
-rw-r--r-- | net/sctp/inqueue.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/sctp/inqueue.c b/net/sctp/inqueue.c index 297b8951463..cf0c767d43a 100644 --- a/net/sctp/inqueue.c +++ b/net/sctp/inqueue.c @@ -149,6 +149,7 @@ struct sctp_chunk *sctp_inq_pop(struct sctp_inq *queue) /* This is the first chunk in the packet. */ chunk->singleton = 1; ch = (sctp_chunkhdr_t *) chunk->skb->data; + chunk->data_accepted = 0; } chunk->chunk_hdr = ch; |