On Fri, Nov 06, 2020 at 10:44:35PM -0600, Glenn Washburn wrote: > Signed-off-by: Glenn Washburn <developm...@efficientek.com>
Reviewed-by: Patrick Steinhardt <p...@pks.im>
> ---
> grub-core/disk/luks2.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/grub-core/disk/luks2.c b/grub-core/disk/luks2.c
> index 751b48d6a..b628043e0 100644
> --- a/grub-core/disk/luks2.c
> +++ b/grub-core/disk/luks2.c
> @@ -622,6 +622,17 @@ luks2_recover_key (grub_disk_t source,
>
> grub_dprintf ("luks2", "Trying keyslot %"PRIuGRUB_UINT64_T"\n",
> keyslot.slot_key);
>
> + /* Sector size should be one of 512, 1024, 2048, or 4096. */
> + if (!(segment.sector_size == 512 || segment.sector_size == 1024 ||
> + segment.sector_size == 2048 || segment.sector_size == 4096))
> + {
> + grub_dprintf ("luks2", "Segment \"%"PRIuGRUB_UINT64_T"\" sector"
> + " size %"PRIuGRUB_UINT64_T" is not one of"
> + " 512, 1024, 2048, or 4096.",
> + segment.slot_key, segment.sector_size);
> + continue;
> + }
> +
> /* Set up disk according to keyslot's segment. */
> crypt->offset_sectors = grub_divmod64 (segment.offset,
> segment.sector_size, NULL);
> crypt->log_sector_size = grub_log2ull (segment.sector_size);
> --
> 2.27.0
>
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