d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix crash when trying to duplicate a NULL meta.

Browse Source
This commit is contained in:
Archie Cobbs 1999-11-08 03:11:22 +00:00
parent a8e9726dfd
commit 3a0d1d886a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=52977
1 changed files with 12 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
sys/netgraph/ng_tee.c
View File

@ -266,15 +266,18 @@ ngt_rcvdata(hook_p hook, struct mbuf *m, meta_p meta)
}
/* Copy meta info */
MALLOC(meta2, meta_p,
meta->used_len, M_NETGRAPH, M_NOWAIT);
if (meta2 == NULL) {
m_freem(m2);
NG_FREE_DATA(m, meta);
return (ENOMEM);
}
meta2->allocated_len = meta->used_len;
bcopy(meta, meta2, meta->used_len);
if (meta != NULL) {
MALLOC(meta2, meta_p,
meta->used_len, M_NETGRAPH, M_NOWAIT);
if (meta2 == NULL) {
m_freem(m2);
NG_FREE_DATA(m, meta);
return (ENOMEM);
}
bcopy(meta, meta2, meta->used_len);
meta2->allocated_len = meta->used_len;
} else
meta2 = NULL;
/* Deliver duplicate */
dup->stats.outOctets += m->m_pkthdr.len;