Re: [PATCH] brd: fix integer overflow in brd_check_and_reset_par

friendly ping. On 2021/3/25 19:45, lixiaokeng wrote: > The max_part may overflow. For example, > > modprobe brd rd_nr=3 rd_size=102400 max_part=1073741824(2^30) > > Expected result > NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT > ram0 1:00 100M 0 disk > ram1

[PATCH] brd: fix integer overflow in brd_check_and_reset_par

The max_part may overflow. For example, modprobe brd rd_nr=3 rd_size=102400 max_part=1073741824(2^30) Expected result NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT ram0 1:00 100M 0 disk ram1 1:256 0 100M 0 disk ram2 1:512 0 100M 0 d