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Fix a resource allocation bug where multicast forwarding would leak mbufs

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in certain cases when allocation of another mbuf has already failed.

Submitted by: Bill Fenner <fenner@parc.xerox.com>
This commit is contained in:
Garrett Wollman 1995-06-19 17:22:01 +00:00
parent 7b4315a73a
commit 4650161123
1 changed files with 4 additions and 4 deletions
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8
sys/netinet/ip_mroute.c
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@ -1206,7 +1206,7 @@ X_ip_mforward(ip, ifp, m, imo)
MGET(mb_rt, M_DONTWAIT, MT_MRTABLE);
if (mb_rt == NULL) {
m_free(mb_ntry);
m_free(mb0);
m_freem(mb0);
splx(s);
return ENOBUFS;
}
@ -1216,7 +1216,7 @@ X_ip_mforward(ip, ifp, m, imo)
mm = m_pullup(mm, hlen);
if (mm == NULL) {
m_free(mb_ntry);
m_free(mb0);
m_freem(mb0);
m_free(mb_rt);
splx(s);
return ENOBUFS;
@ -1238,7 +1238,7 @@ X_ip_mforward(ip, ifp, m, imo)
log(LOG_WARNING, "ip_mforward: ip_mrouter socket queue full");
++mrtstat.mrts_upq_sockfull;
m_free(mb_ntry);
m_free(mb0);
m_freem(mb0);
m_free(mb_rt);
splx(s);
return ENOBUFS;
@ -1269,7 +1269,7 @@ X_ip_mforward(ip, ifp, m, imo)
if (npkts > MAX_UPQ) {
mrtstat.mrts_upq_ovflw++;
m_free(mb_ntry);
m_free(mb0);
m_freem(mb0);
splx(s);
return 0;
}