r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
bind$inet6(r0, &(0x7f00000000c0)={0xa, 0x4e20, 0x0, @loopback}, 0x1c)
connect$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20, 0x0, @loopback}, 0x1c)
sendmmsg$inet6(0xffffffffffffffff, 0x0, 0x0, 0x0)
setsockopt$inet6_tcp_int(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
sendmsg$inet6(r0, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000540)=[{&(0x7f0000001e80)="b4", 0x1}], 0x1}, 0x10044001)
getsockopt$inet6_tcp_TCP_ZEROCOPY_RECEIVE(r0, 0x6, 0x23, &(0x7f0000000200)={&(0x7f0000ffa000/0x3000)=nil, 0x3000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000000240)=0x40)