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| author | Daniel Mack <github@zonque.org> | 2015-07-14 13:26:16 -0400 |
|---|---|---|
| committer | Daniel Mack <github@zonque.org> | 2015-07-14 13:26:16 -0400 |
| commit | c0d645b51f6a65a03cce4e29ed276ccdcb5b6ab0 (patch) | |
| tree | fb5f6d2154cb7d2a021a57721f5f92962cd24361 /src/resolve/resolved-dns-packet.c | |
| parent | ca970016b7e5176e94eee3af24a70d5b3355018f (diff) | |
| parent | d20b1667dbab8bccf69735523a0d5fc645e81b80 (diff) | |
Merge pull request #585 from teg/resolved-harden-2
resolved: harden
Diffstat (limited to 'src/resolve/resolved-dns-packet.c')
| -rw-r--r-- | src/resolve/resolved-dns-packet.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/resolve/resolved-dns-packet.c b/src/resolve/resolved-dns-packet.c index fa0516f8a0..a9cc5ca6aa 100644 --- a/src/resolve/resolved-dns-packet.c +++ b/src/resolve/resolved-dns-packet.c @@ -32,10 +32,10 @@ int dns_packet_new(DnsPacket **ret, DnsProtocol protocol, size_t mtu) { assert(ret); - if (mtu <= 0) + if (mtu <= UDP_PACKET_HEADER_SIZE) a = DNS_PACKET_SIZE_START; else - a = mtu; + a = mtu - UDP_PACKET_HEADER_SIZE; if (a < DNS_PACKET_HEADER_SIZE) a = DNS_PACKET_HEADER_SIZE; |