diff options
| author |   benno <benno@openbsd.org> | 2020-12-29 19:50:28 +0000 |
|---|---|---|
| committer | benno <benno@openbsd.org> | 2020-12-29 19:50:28 +0000 |
| commit | ff7f497850d580cf58e097deed82ec8e46cd647c (patch) | |
| tree | 9346c174ac6793b77ffc915534a5a8e29a65014f /sbin/pfctl | |
| parent | getifaddrs() can return entries where ifa_addr is NULL. Check for this (diff) | |
| download | wireguard-openbsd-ff7f497850d580cf58e097deed82ec8e46cd647c.tar.xz wireguard-openbsd-ff7f497850d580cf58e097deed82ec8e46cd647c.zip | |
getifaddrs() can return entries where ifa_addr is NULL. Check for this
before accessing anything in ifa_addr.
ok claudio@
Diffstat (limited to 'sbin/pfctl')
| -rw-r--r-- | sbin/pfctl/pfctl_parser.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sbin/pfctl/pfctl_parser.c b/sbin/pfctl/pfctl_parser.c index 32b14d8b4cb..03317844e91 100644 --- a/sbin/pfctl/pfctl_parser.c +++ b/sbin/pfctl/pfctl_parser.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pfctl_parser.c,v 1.343 2020/05/15 00:56:03 cheloha Exp $ */ +/* $OpenBSD: pfctl_parser.c,v 1.344 2020/12/29 19:50:28 benno Exp $ */ /* * Copyright (c) 2001 Daniel Hartmeier @@ -1352,7 +1352,8 @@ ifa_load(void) err(1, "getifaddrs"); for (ifa = ifap; ifa; ifa = ifa->ifa_next) { - if (!(ifa->ifa_addr->sa_family == AF_INET || + if (ifa->ifa_addr == NULL || + !(ifa->ifa_addr->sa_family == AF_INET || ifa->ifa_addr->sa_family == AF_INET6 || ifa->ifa_addr->sa_family == AF_LINK)) continue; |