r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='net/ip6_flowlabel\x00')
preadv(r0, &(0x7f0000001680)=[{&(0x7f0000000000)=""/120, 0x78}], 0x1, 0x9, 0x0)