On Fri, 29 Mar 2024 09:23:19 +0800, linan666@xxxxxxxxxxxxxxx wrote: > There is no check for overflow of 'start + len' in blk_ioctl_discard(). > Hung task occurs if submit an discard ioctl with the following param: > start = 0x80000000000ff000, len = 0x8000000000fff000; > Add the overflow validation now. > > Applied, thanks! [1/1] block: fix overflow in blk_ioctl_discard() commit: 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155 Best regards, -- Jens Axboe