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fixe remote panic on short packet

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Obtained from: KAME
This commit is contained in:
SUZUKI Shinsuke 2003-10-31 03:18:45 +00:00
parent aaaad65dcd
commit 7a1413f972
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=121779
1 changed files with 5 additions and 0 deletions
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5
usr.sbin/route6d/route6d.c
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@ -1126,6 +1126,11 @@ riprecv()
if (idx && IN6_IS_ADDR_LINKLOCAL(&fsock.sin6_addr))
SET_IN6_LINKLOCAL_IFINDEX(fsock.sin6_addr, idx);
if (len < sizeof(struct rip6)) {
trace(1, "Packet too short\n");
return;
}
nh = fsock.sin6_addr;
nn = (len - sizeof(struct rip6) + sizeof(struct netinfo6)) /
sizeof(struct netinfo6);