r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='mountinfo\x00') r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='mountinfo\x00') readv(r1, &(0x7f0000000280)=[{&(0x7f0000001e00)=""/4098, 0x1002}], 0x1) sendfile(r0, r1, 0x0, 0x100000001)