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Differential D24831

Allow only IPv4 addresses in sendto() for TCP on AF_INET sockets
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Authored by tuexen on May 13 2020, 10:06 PM.
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rscheff
rrs
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transport
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rS361081: Allow only IPv4 addresses in sendto() for TCP on AF_INET sockets.
Summary

Without this patch IPv4-mapped IPv6 addresses would be accepted in sendto() on a TCP socket created for AF_INET.

This problem was found by looking at syzkaller reproducers for some other problems.

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Repository
rS FreeBSD src repository - subversion
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Buildable 31069

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sys/
netinet/
6 lines

Diff 71740

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sys/netinet/tcp_usrreq.c

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