WSL2-Linux-Kernel/net/iucv
Mateusz Jurczyk e3c42b61ff af_iucv: Move sockaddr length checks to before accessing sa_family in bind and connect handlers
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: 52a82e23b9 ("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>
2017-06-25 11:42:58 -04:00
..
Kconfig iucv: kernel option for z/VM IUCV and HiperSockets 2011-08-13 01:10:16 -07:00
Makefile [S390]: Add AF_IUCV socket support 2007-02-08 13:51:54 -08:00
af_iucv.c af_iucv: Move sockaddr length checks to before accessing sa_family in bind and connect handlers 2017-06-25 11:42:58 -04:00
iucv.c net/iucv: Use explicit clean up labels in iucv_init() 2016-11-28 17:29:04 +01:00