From: Julian Wiedmann <jwi@xxxxxxxxxxxxxxxxxx>
Date: Fri, 23 Jun 2017 19:32:28 +0200
> From: Mateusz Jurczyk <mjurczyk@xxxxxxxxxx>
>
> Verify that the caller-provided sockaddr structure is large enough to
> contain the sa_family field, before accessing it in bind() and connect()
> handlers of the AF_IUCV socket. Since neither syscall enforces a minimum
> size of the corresponding memory region, very short sockaddrs (zero or
> one byte long) result in operating on uninitialized memory while
> referencing .sa_family.
>
> Fixes: 52a82e23b9f2 ("af_iucv: Validate socket address length in iucv_sock_bind()")
> Signed-off-by: Mateusz Jurczyk <mjurczyk@xxxxxxxxxx>
> [jwi: removed unneeded null-check for addr]
> Signed-off-by: Julian Wiedmann <jwi@xxxxxxxxxxxxxxxxxx>
Applied.
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