From: Pan Bian <bianpan2016@163.com>
To: QLogic-Storage-Upstream@qlogic.com,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
Pan Bian <bianpan2016@163.com>
Subject: [PATCH] scsi: bnx2i: fix potential use after free
Date: Wed, 6 Nov 2019 20:32:21 +0800 [thread overview]
Message-ID: <1573043541-19126-1-git-send-email-bianpan2016@163.com> (raw)
The membe hba->pcidev may be used after its reference is dropped. Move
the put function to where it is never used to avoid potential use after
free issues.
Fixes: a77171806515 ("[SCSI] bnx2i: Removed the reference to the netdev->base_addr")
Signed-off-by: Pan Bian <bianpan2016@163.com>
---
drivers/scsi/bnx2i/bnx2i_iscsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index c5fa5f3b00e9..0b28d44d3573 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -915,12 +915,12 @@ void bnx2i_free_hba(struct bnx2i_hba *hba)
INIT_LIST_HEAD(&hba->ep_ofld_list);
INIT_LIST_HEAD(&hba->ep_active_list);
INIT_LIST_HEAD(&hba->ep_destroy_list);
- pci_dev_put(hba->pcidev);
if (hba->regview) {
pci_iounmap(hba->pcidev, hba->regview);
hba->regview = NULL;
}
+ pci_dev_put(hba->pcidev);
bnx2i_free_mp_bdt(hba);
bnx2i_release_free_cid_que(hba);
iscsi_host_free(shost);
--
2.7.4
next reply other threads:[~2019-11-06 12:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-06 12:32 Pan Bian [this message]
2019-11-19 5:06 ` [PATCH] scsi: bnx2i: fix potential use after free Martin K. Petersen
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