[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH] iscsi: Don't access non-existent scsi_lba_status_descriptor
From: |
Kevin Wolf |
Subject: |
[PATCH] iscsi: Don't access non-existent scsi_lba_status_descriptor |
Date: |
Thu, 23 Jan 2020 18:05:44 +0100 |
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;
}
--
2.20.1
- [PATCH] iscsi: Don't access non-existent scsi_lba_status_descriptor,
Kevin Wolf <=