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Savely remove a chunk from the control queue.

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This bug was found by Coverity scanning the usrsctp library.

MFC after:	3 days
This commit is contained in:
Michael Tuexen 2017-09-09 19:49:50 +00:00
parent 141bf584e4
commit 6c2cfc0419
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=323372
1 changed files with 2 additions and 2 deletions
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4
sys/netinet/sctp_input.c
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@ -3133,14 +3133,14 @@ sctp_handle_ecn_cwr(struct sctp_cwr_chunk *cp, struct sctp_tcb *stcb, struct sct
* make sure that we have a covered ECNE in the control chunk part.
* If so remove it.
*/
struct sctp_tmit_chunk *chk;
struct sctp_tmit_chunk *chk, *nchk;
struct sctp_ecne_chunk *ecne;
int override;
uint32_t cwr_tsn;
cwr_tsn = ntohl(cp->tsn);
override = cp->ch.chunk_flags & SCTP_CWR_REDUCE_OVERRIDE;
TAILQ_FOREACH(chk, &stcb->asoc.control_send_queue, sctp_next) {
TAILQ_FOREACH_SAFE(chk, &stcb->asoc.control_send_queue, sctp_next, nchk) {
if (chk->rec.chunk_id.id != SCTP_ECN_ECHO) {
continue;
}