https://github.com/torvalds/linux
Revision 6f29a130613191d3c6335169febe002cba00edf5 authored by Xin Long on 24 January 2017, 06:01:53 UTC, committed by David S. Miller on 25 January 2017, 17:26:55 UTC
sctp_addr_id2transport is a function for sockopt to look up assoc by
address. As the address is from userspace, it can be a v4-mapped v6
address. But in sctp protocol stack, it always handles a v4-mapped
v6 address as a v4 address. So it's necessary to convert it to a v4
address before looking up assoc by address.

This patch is to fix it by calling sctp_verify_addr in which it can do
this conversion before calling sctp_endpoint_lookup_assoc, just like
what sctp_sendmsg and __sctp_connect do for the address from users.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent ec221a1
History
Tip revision: 6f29a130613191d3c6335169febe002cba00edf5 authored by Xin Long on 24 January 2017, 06:01:53 UTC
sctp: sctp_addr_id2transport should verify the addr before looking up assoc
Tip revision: 6f29a13
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