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SubjectRe: [PATCH] make kernel ignore bogus partitions
"Mike Miller (OS Dev)" <mikem@beardog.cca.cpqcorp.net> wrote:
>
> Patch 1/1
> Sometimes partitions claim to be larger than the reported capacity of a
> disk device. This patch makes the kernel ignore those partitions.
>
> Signed-off-by: Mike Miller <mike.miller@hp.com>
> Signed-off-by: Stephen Cameron <steve.cameron@hp.com>
>
> Please consider this for inclusion.
>
>
> fs/partitions/check.c | 5 +++++
> 1 files changed, 5 insertions(+)
>
> --- linux-2.6.14/fs/partitions/check.c~partition_vs_capacity 2006-01-06 09:32:14.000000000 -0600
> +++ linux-2.6.14-root/fs/partitions/check.c 2006-01-06 11:24:50.000000000 -0600
> @@ -382,6 +382,11 @@ int rescan_partitions(struct gendisk *di
> sector_t from = state->parts[p].from;
> if (!size)
> continue;
> + if (from+size-1 > get_capacity(disk)) {
> + printk(" %s: p%d exceeds device capacity, ignoring.\n",
> + disk->disk_name, p);
> + continue;
> + }
> add_partition(disk, p, from, size);
> #ifdef CONFIG_BLK_DEV_MD
> if (state->parts[p].flags)

Shouldn't that be

if (from+size > get_capacity(disk)) {
?

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