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Merge pull request #9371 from donaldsharp/zebra_evpn_getl

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zebra: Ensure stream is long enough
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Igor Ryzhov 2021-08-13 14:06:37 +03:00 committed by GitHub
commit 1523c0f9ee
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1 changed files with 10 additions and 0 deletions
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10
zebra/zebra_evpn_mh.c
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@ -3920,8 +3920,18 @@ void zebra_evpn_proc_remote_nh(ZAPI_HANDLER_ARGS)
struct ipaddr nh; struct ipaddr nh;
struct ethaddr rmac; struct ethaddr rmac;
struct prefix_evpn dummy_prefix; struct prefix_evpn dummy_prefix;
size_t min_len = 4 + sizeof(nh);
s = msg; s = msg;
/*
* Ensure that the stream sent to us is long enough
*/
if (hdr->command == ZEBRA_EVPN_REMOTE_NH_ADD)
min_len += sizeof(rmac);
if (hdr->length < min_len)
return;
vrf_id = stream_getl(s); vrf_id = stream_getl(s);
stream_get(&nh, s, sizeof(nh)); stream_get(&nh, s, sizeof(nh));