On Fri, Mar 29, 2024 at 09:23:19AM +0800, linan666@xxxxxxxxxxxxxxx wrote: > From: Li Nan <linan122@xxxxxxxxxx> > > 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. Looks good: Reviewed-by: Christoph Hellwig <hch@xxxxxx> Can you wire up a testcase in blktests for this condition?
