r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='environ\x00')
preadv(r0, &(0x7f0000000440)=[{&(0x7f0000000080)=""/188, 0x129}, {&(0x7f0000000140)=""/192, 0xc0}], 0x2, 0x0, 0x0)