r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='net/ip_mr_vif\x00')
preadv(r0, &(0x7f0000000000)=[{&(0x7f00000001c0)=""/89, 0x59}], 0x1, 0x5545, 0x0)