K 10
svn:author
V 6
tuexen
K 8
svn:date
V 27
2019-01-25T15:44:53.316006Z
K 7
svn:log
V 412
MFC r342879:

Fix getsockopt() for IP_OPTIONS/IP_RETOPTS.

r336616 copies inp->inp_options using the m_dup() function.
However, this function expects an mbuf packet header at the beginning,
which is not true in this case.
Therefore, use m_copym() instead of m_dup().

This issue was found by syzkaller.

Reviewed by:		mmacy@
Sponsored by:		Netflix, Inc.
Differential Revision:	https://reviews.freebsd.org/D18753

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