prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x0, 0x0, &(0x7f0000000000))
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
r1 = fcntl$dupfd(r0, 0x0, r0)
flistxattr(r1, 0x0, 0x0)