diff options
Diffstat (limited to 'sys/kern/uipc_mbuf.c')
| -rw-r--r-- | sys/kern/uipc_mbuf.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/kern/uipc_mbuf.c b/sys/kern/uipc_mbuf.c index cc38c40..763e0b4 100644 --- a/sys/kern/uipc_mbuf.c +++ b/sys/kern/uipc_mbuf.c @@ -519,6 +519,15 @@ m_freem(m) if (m == NULL) return; do { + /* + * we do need to check non-first mbuf, since some of existing + * code does not call M_PREPEND properly. + * (example: call to bpf_mtap from drivers) + */ + if ((m->m_flags & M_PKTHDR) != 0 && m->m_pkthdr.aux) { + m_freem(m->m_pkthdr.aux); + m->m_pkthdr.aux = NULL; + } MFREE(m, n); m = n; } while (m); |
