Author: tuexen
Date: Mon Mar 12 21:34:10 2012
New Revision: 232900
URL: http://svn.freebsd.org/changeset/base/232900
Log:
MFC r232723,r232726:
Fix a bug reported by Peter Holm which results in a crash:
Verify in sctp_peeloff() that the socket is a one-to-many
style SCTP socket.
Modified:
stable/9/sys/netinet/sctp_peeloff.c
Directory Properties:
stable/9/sys/ (props changed)
Modified: stable/9/sys/netinet/sctp_peeloff.c
==============================================================================
--- stable/9/sys/netinet/sctp_peeloff.c Mon Mar 12 21:32:43 2012
(r232899)
+++ stable/9/sys/netinet/sctp_peeloff.c Mon Mar 12 21:34:10 2012
(r232900)
@@ -55,9 +55,18 @@ sctp_can_peel_off(struct socket *head, s
struct sctp_tcb *stcb;
uint32_t state;
+ if (head == NULL) {
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_PEELOFF,
EBADF);
+ return (EBADF);
+ }
+ if ((head->so_proto->pr_protocol != IPPROTO_SCTP) ||
+ (head->so_type != SOCK_SEQPACKET)) {
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_PEELOFF,
EOPNOTSUPP);
+ return (EOPNOTSUPP);
+ }
inp = (struct sctp_inpcb *)head->so_pcb;
if (inp == NULL) {
- SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_PEELOFF,
EFAULT);
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_PEELOFF,
EFAULT);
return (EFAULT);
}
stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1);
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