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| author |   gilles <gilles@openbsd.org> | 2015-01-30 16:41:43 +0000 |
|---|---|---|
| committer | gilles <gilles@openbsd.org> | 2015-01-30 16:41:43 +0000 |
| commit | 0203ec73a9d17e8015e9eacb07cfe3d1e515e0f3 (patch) | |
| tree | 3d63c562fd977fc03223521bb0396976797a2e41 | |
| parent | Tidy up detach-client a bit. (diff) | |
| download | wireguard-openbsd-0203ec73a9d17e8015e9eacb07cfe3d1e515e0f3.tar.xz wireguard-openbsd-0203ec73a9d17e8015e9eacb07cfe3d1e515e0f3.zip | |
fix a possible NULL-deref when trying to deref ifa->ifa_addr
ok eric@
| -rw-r--r-- | lib/libc/asr/getaddrinfo_async.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/libc/asr/getaddrinfo_async.c b/lib/libc/asr/getaddrinfo_async.c index 162759f80de..0b8b5e71fee 100644 --- a/lib/libc/asr/getaddrinfo_async.c +++ b/lib/libc/asr/getaddrinfo_async.c @@ -1,4 +1,4 @@ -/* $OpenBSD: getaddrinfo_async.c,v 1.32 2015/01/14 23:36:15 deraadt Exp $ */ +/* $OpenBSD: getaddrinfo_async.c,v 1.33 2015/01/30 16:41:43 gilles Exp $ */ /* * Copyright (c) 2012 Eric Faurot <eric@openbsd.org> * @@ -218,6 +218,8 @@ getaddrinfo_async_run(struct asr_query *as, struct asr_result *ar) for (ifa = ifa0; ifa != NULL; ifa = ifa->ifa_next) { if (ifa->ifa_flags & IFF_LOOPBACK) continue; + if (ifa->ifa_addr == NULL) + continue; if (ifa->ifa_addr->sa_family == PF_INET) v4 = 1; else if (ifa->ifa_addr->sa_family == PF_INET6 && |