In iscsi_co_block_status(), we may have received num_descriptors == 0
from the iscsi server. Therefore, we can't unconditionally access
lbas->descriptors[0]. Add the missing check.
Signed-off-by: Kevin Wolf <address@hidden>
---
block/iscsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/iscsi.c b/block/iscsi.c
index cbd57294ab..c8feaa2f0e 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -753,7 +753,7 @@ retry:
}
lbas = scsi_datain_unmarshall(iTask.task);
- if (lbas == NULL) {
+ if (lbas == NULL || lbas->num_descriptors == 0) {
ret = -EIO;
goto out_unlock;
}