r0 = syz_open_procfs(0x0, &(0x7f0000000200)='net/igmp6\x00')
preadv(r0, &(0x7f0000000180)=[{&(0x7f0000000000)=""/136, 0x88}, {&(0x7f00000000c0)=""/153, 0x99}], 0x2, 0x300, 0x0)