Re: [PATCH] sctp: Fix mangled IPv4 addresses on a IPv6 listening socket

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On Wed, May 27, 2015 at 04:41:18PM +0000, David Laight wrote:

> The code will be sleeping in kernel_accept() and later calls
> kernel_getpeername().
> The code is used for both TCP and SCTP and this part is common (using
> the TCP semantics).

getpeername uses a different flow, it calls into inet6_getname which
will always return the AF_INET6 version.

The call to sctp_v6_addr_to_user after is to support the v6->v4 coversion
when SCTP_I_WANT_MAPPED_V4_ADDR=0, it will never do the broken v4->v6
conversion.

Jason
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