Module Name: src
Committed By: maxv
Date: Fri Jan 20 19:21:01 UTC 2017
Modified Files:
src/sys/netinet: if_arp.c
Log Message:
Make sure the protocol address length equals that of IPv4. Also, make sure
the hardware address length equals that of the interface we received the
packet on. Otherwise a packet could easily set them both to zero and make
the kernel read beyond the allocated mbuf, which is terrible.
Note: for the latter we drop the packet instead of replying, since it is
malformed.
Note: I also added an ugly hack in CARP, since it apparently expects at
least six bytes.
To generate a diff of this commit:
cvs rdiff -u -r1.237 -r1.238 src/sys/netinet/if_arp.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
