[PATCH] scsi: iscsi: Do not put host in iscsi_set_flashnode_param()

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Jing Xiangfeng

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Jun 20, 2020, 1:10:40 PM6/20/20
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If scsi_host_lookup() failes we will jump to put_host, which may
cause panic. Jump to exit_set_fnode to fix it.

Signed-off-by: Jing Xiangfeng <jingxi...@huawei.com>
---
drivers/scsi/scsi_transport_iscsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index f4cc08e..c5e99f9 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -3291,7 +3291,7 @@ static int iscsi_set_flashnode_param(struct iscsi_transport *transport,
pr_err("%s could not find host no %u\n",
__func__, ev->u.set_flashnode.host_no);
err = -ENODEV;
- goto put_host;
+ goto exit_set_fnode;
}

idx = ev->u.set_flashnode.flashnode_idx;
--
1.8.3.1

Mike Christie

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Jul 26, 2020, 1:31:55 AM7/26/20
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Reviewed-by: Mike Christie <michael....@oracle.com>

Martin K. Petersen

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Jul 29, 2020, 12:12:53 AM7/29/20
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On Mon, 15 Jun 2020 16:12:26 +0800, Jing Xiangfeng wrote:

> If scsi_host_lookup() failes we will jump to put_host, which may
> cause panic. Jump to exit_set_fnode to fix it.

Applied to 5.9/scsi-queue, thanks!

[1/1] scsi: iscsi: Do not put host in iscsi_set_flashnode_param()
https://git.kernel.org/mkp/scsi/c/68e12e5f6135

--
Martin K. Petersen Oracle Linux Engineering
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