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Mateusz Jurczyk authored
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: 52a82e23 ("af_iucv: Validate socket address length in iucv_sock_bind()") Signed-off-by:
Mateusz Jurczyk <mjurczyk@google.com> [jwi: removed unneeded null-check for addr] Signed-off-by:
Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
e3c42b61