4.4-stable review patch. If anyone has any objections, please let me know.
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From: Heiko Carstens heiko.carstens@de.ibm.com
commit e779498df587dd2189b30fe5b9245aefab870eb8 upstream.
When wiring up the socket system calls the compat entries were incorrectly set. Not all of them point to the corresponding compat wrapper functions, which clear the upper 33 bits of user space pointers, like it is required.
Fixes: 977108f89c989 ("s390: wire up separate socketcalls system calls") Signed-off-by: Heiko Carstens heiko.carstens@de.ibm.com Signed-off-by: Martin Schwidefsky schwidefsky@de.ibm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/s390/kernel/syscalls.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -369,10 +369,10 @@ SYSCALL(sys_recvmmsg,compat_sys_recvmmsg SYSCALL(sys_sendmmsg,compat_sys_sendmmsg) SYSCALL(sys_socket,sys_socket) SYSCALL(sys_socketpair,compat_sys_socketpair) /* 360 */ -SYSCALL(sys_bind,sys_bind) -SYSCALL(sys_connect,sys_connect) +SYSCALL(sys_bind,compat_sys_bind) +SYSCALL(sys_connect,compat_sys_connect) SYSCALL(sys_listen,sys_listen) -SYSCALL(sys_accept4,sys_accept4) +SYSCALL(sys_accept4,compat_sys_accept4) SYSCALL(sys_getsockopt,compat_sys_getsockopt) /* 365 */ SYSCALL(sys_setsockopt,compat_sys_setsockopt) SYSCALL(sys_getsockname,compat_sys_getsockname)