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-rw-r--r--fs/partitions/check.c7
-rw-r--r--fs/partitions/ldm.c16
2 files changed, 16 insertions, 7 deletions
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 9c21119512b..d545e97d99c 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -290,7 +290,8 @@ ssize_t part_inflight_show(struct device *dev,
{
struct hd_struct *p = dev_to_part(dev);
- return sprintf(buf, "%8u %8u\n", p->in_flight[0], p->in_flight[1]);
+ return sprintf(buf, "%8u %8u\n", atomic_read(&p->in_flight[0]),
+ atomic_read(&p->in_flight[1]));
}
#ifdef CONFIG_FAIL_MAKE_REQUEST
@@ -499,7 +500,7 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
/* everything is up and running, commence */
rcu_assign_pointer(ptbl->part[partno], p);
- /* suppress uevent if the disk supresses it */
+ /* suppress uevent if the disk suppresses it */
if (!dev_get_uevent_suppress(ddev))
kobject_uevent(&pdev->kobj, KOBJ_ADD);
@@ -584,7 +585,7 @@ rescan:
/*
* If any partition code tried to read beyond EOD, try
* unlocking native capacity even if partition table is
- * sucessfully read as we could be missing some partitions.
+ * successfully read as we could be missing some partitions.
*/
if (state->access_beyond_eod) {
printk(KERN_WARNING
diff --git a/fs/partitions/ldm.c b/fs/partitions/ldm.c
index ea648b913be..410df07ae96 100644
--- a/fs/partitions/ldm.c
+++ b/fs/partitions/ldm.c
@@ -1299,6 +1299,11 @@ static bool ldm_frag_add (const u8 *data, int size, struct list_head *frags)
BUG_ON (!data || !frags);
+ if (size < 2 * VBLK_SIZE_HEAD) {
+ ldm_error("Value of size is to small.");
+ return false;
+ }
+
group = get_unaligned_be32(data + 0x08);
rec = get_unaligned_be16(data + 0x0C);
num = get_unaligned_be16(data + 0x0E);
@@ -1306,6 +1311,10 @@ static bool ldm_frag_add (const u8 *data, int size, struct list_head *frags)
ldm_error ("A VBLK claims to have %d parts.", num);
return false;
}
+ if (rec >= num) {
+ ldm_error("REC value (%d) exceeds NUM value (%d)", rec, num);
+ return false;
+ }
list_for_each (item, frags) {
f = list_entry (item, struct frag, list);
@@ -1334,10 +1343,9 @@ found:
f->map |= (1 << rec);
- if (num > 0) {
- data += VBLK_SIZE_HEAD;
- size -= VBLK_SIZE_HEAD;
- }
+ data += VBLK_SIZE_HEAD;
+ size -= VBLK_SIZE_HEAD;
+
memcpy (f->data+rec*(size-VBLK_SIZE_HEAD)+VBLK_SIZE_HEAD, data, size);
return true;