Added a minimal consitency check as in imsm_open_new().
Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>
---
super-ddf.c | 10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/super-ddf.c b/super-ddf.c
index b3c846d..ae24bb9 100644
--- a/super-ddf.c
+++ b/super-ddf.c
@@ -3695,8 +3695,14 @@ static int compare_super_ddf(struct supertype *st, struct supertype *tst)
*/
static int ddf_open_new(struct supertype *c, struct active_array *a, char *inst)
{
- dprintf("ddf: open_new %s\n", inst);
- a->info.container_member = atoi(inst);
+ struct ddf_super *ddf = c->sb;
+ int n = atoi(inst);
+ if (n >= (int)__be16_to_cpu(ddf->virt->populated_vdes)) {
+ pr_err("%s: subarray index %d out of range\n", __func__, n);
+ return -ENODEV;
+ }
+ dprintf("ddf: open_new %d\n", n);
+ a->info.container_member = n;
return 0;
}
--
1.7.1
--
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