Re: [PATCH] af_iucv: Move sockaddr length checks to before accessing sa_family in bind and connect handlers

[Julian Wiedmann]

On 06/13/2017 07:42 PM, Mateusz Jurczyk wrote:
> 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.
> 
> Signed-off-by: Mateusz Jurczyk <mjurczyk@xxxxxxxxxx>
Thanks Mateusz!

Fixes: 52a82e23b9f2
Acked-by: Julian Wiedmann <jwi@xxxxxxxxxxxxxxxxxx>