r0 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$inet_group_source_req(r0, 0x0, 0x2e, &(0x7f0000007fc0)={0x1, {{0x2, 0x0, @multicast2}}, {{0x2, 0x0, @broadcast}}}, 0x108)
r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='net/mcfilter\x00')
preadv(r1, &(0x7f00000001c0)=[{&(0x7f0000000000)=""/136, 0x88}], 0x1, 0x2f, 0x0)