r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000180)='net/igmp\x00')
readv(r0, &(0x7f0000000100)=[{&(0x7f0000000380)=""/240, 0xf0}, {&(0x7f0000000280)=""/239, 0xef}], 0x2)