Re: [PATCH] block: add check that partition length needs to be aligned with block size

From: Greg KH
Date: Mon Jun 26 2023 - 10:42:48 EST


On Mon, Jun 26, 2023 at 05:10:21PM +0000, Min Li wrote:
> Before calling add partition or resize partition, there is no check
> on whether the length is aligned with the logical block size.
> If the logical block size of the disk is larger than 512 bytes,
> then the partition size maybe not the multiple of the logical block size,
> and when the last sector is read, bio_truncate() will adjust the bio size,
> resulting in an IO error if the size of the read command is smaller than
> the logical block size.If integrity data is supported, this will also
> result in a null pointer dereference when calling bio_integrity_free.
>
> Signed-off-by: Min Li <min15.li@xxxxxxxxxxx>

What commit id does this fix?

thanks,

greg k-h