diff options
| author | Hans Petter Selasky <hselasky@FreeBSD.org> | 2020-02-17 09:46:32 +0000 |
|---|---|---|
| committer | Hans Petter Selasky <hselasky@FreeBSD.org> | 2020-02-17 09:46:32 +0000 |
| commit | bacb11c9ed37886069dbfe4303f414b731d5957e (patch) | |
| tree | 8f757d6f4355a8867e7518a270ec7e2cdaa01f9b /sys/netinet/igmp.c | |
| parent | ed581bf68f8b81bc1ac6815257bc529c09bfe775 (diff) | |
| download | src-bacb11c9ed37886069dbfe4303f414b731d5957e.tar.gz src-bacb11c9ed37886069dbfe4303f414b731d5957e.zip | |
Fix kernel panic while trying to read multicast stream.
When VIMAGE is enabled make sure the "m_pkthdr.rcvif" pointer is set
for all mbufs being input by the IGMP/MLD6 code. Else there will be a
NULL-pointer dereference in the netisr code when trying to set the
VNET based on the incoming mbuf. Add an assert to catch this when
queueing mbufs on a netisr to make debugging of similar cases easier.
Found by: Vladislav V. Prodan
PR: 244002
Reviewed by: bz@
MFC after: 1 week
Sponsored by: Mellanox Technologies
Notes
Notes:
svn path=/head/; revision=358013
Diffstat (limited to 'sys/netinet/igmp.c')
| -rw-r--r-- | sys/netinet/igmp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/netinet/igmp.c b/sys/netinet/igmp.c index 5ee99dbb91d3..2a08e73317a2 100644 --- a/sys/netinet/igmp.c +++ b/sys/netinet/igmp.c @@ -303,6 +303,7 @@ igmp_save_context(struct mbuf *m, struct ifnet *ifp) #ifdef VIMAGE m->m_pkthdr.PH_loc.ptr = ifp->if_vnet; #endif /* VIMAGE */ + m->m_pkthdr.rcvif = ifp; m->m_pkthdr.flowid = ifp->if_index; } |