diff options
| author | Dexuan Cui <dexuan@FreeBSD.org> | 2018-07-17 21:05:08 +0000 |
|---|---|---|
| committer | Dexuan Cui <dexuan@FreeBSD.org> | 2018-07-17 21:05:08 +0000 |
| commit | d76fb49fd89f7b783798a2a2b76a03c9f988621f (patch) | |
| tree | d3f4f757640624b5b1deffb467f79a1bcb41ece2 /sys/dev/hyperv | |
| parent | 11df3a2881788ec9e683fbea679ca6306456ee15 (diff) | |
Notes
Diffstat (limited to 'sys/dev/hyperv')
| -rw-r--r-- | sys/dev/hyperv/netvsc/if_hn.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/dev/hyperv/netvsc/if_hn.c b/sys/dev/hyperv/netvsc/if_hn.c index 8d8e2f0e81ae..24335638c33d 100644 --- a/sys/dev/hyperv/netvsc/if_hn.c +++ b/sys/dev/hyperv/netvsc/if_hn.c @@ -1161,6 +1161,13 @@ hn_ismyvf(const struct hn_softc *sc, const struct ifnet *ifp) strcmp(ifp->if_dname, "vlan") == 0) return (false); + /* + * During detach events ifp->if_addr might be NULL. + * Make sure the bcmp() below doesn't panic on that: + */ + if (ifp->if_addr == NULL || hn_ifp->if_addr == NULL) + return (false); + if (bcmp(IF_LLADDR(ifp), IF_LLADDR(hn_ifp), ETHER_ADDR_LEN) != 0) return (false); |