r0 = syz_open_procfs(0x0, &(0x7f0000000000)='mountinfo\x00')
pipe(&(0x7f0000000080)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendfile(r2, r0, 0x0, 0x6)
readv(r1, &(0x7f0000000040)=[{&(0x7f00000000c0)=""/215, 0xd7}], 0x1)