From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Pan Bian <bianpan2016@163.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
Sasha Levin <sashal@kernel.org>,
linux-scsi@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 653/671] scsi: bnx2i: fix potential use after free
Date: Thu, 16 Jan 2020 12:04:51 -0500 [thread overview]
Message-ID: <20200116170509.12787-390-sashal@kernel.org> (raw)
In-Reply-To: <20200116170509.12787-1-sashal@kernel.org>
From: Pan Bian <bianpan2016@163.com>
[ Upstream commit 29d28f2b8d3736ac61c28ef7e20fda63795b74d9 ]
The member 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")
Link: https://lore.kernel.org/r/1573043541-19126-1-git-send-email-bianpan2016@163.com
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 de0a507577ef..718a0335cfbb 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);
--
2.20.1
next prev parent reply other threads:[~2020-01-16 17:16 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200116170509.12787-1-sashal@kernel.org>
2020-01-16 16:58 ` [PATCH AUTOSEL 4.19 282/671] scsi: qla2xxx: Unregister chrdev if module initialization fails Sasha Levin
2020-01-16 16:58 ` [PATCH AUTOSEL 4.19 289/671] scsi: target/core: Fix a race condition in the LUN lookup code Sasha Levin
2020-01-16 16:59 ` [PATCH AUTOSEL 4.19 316/671] scsi: qla2xxx: Fix a format specifier Sasha Levin
2020-01-16 16:59 ` [PATCH AUTOSEL 4.19 317/671] scsi: qla2xxx: Fix error handling in qlt_alloc_qfull_cmd() Sasha Levin
2020-01-16 16:59 ` [PATCH AUTOSEL 4.19 318/671] scsi: qla2xxx: Avoid that qlt_send_resp_ctio() corrupts memory Sasha Levin
2020-01-16 17:01 ` [PATCH AUTOSEL 4.19 463/671] scsi: libfc: fix null pointer dereference on a null lport Sasha Levin
2020-01-16 17:02 ` [PATCH AUTOSEL 4.19 538/671] scsi: fnic: fix msix interrupt allocation Sasha Levin
2020-01-16 17:04 ` [PATCH AUTOSEL 4.19 626/671] scsi: esas2r: unlock on error in esas2r_nvram_read_direct() Sasha Levin
2020-01-16 17:04 ` [PATCH AUTOSEL 4.19 632/671] scsi: core: scsi_trace: Use get_unaligned_be*() Sasha Levin
2020-01-16 17:04 ` [PATCH AUTOSEL 4.19 652/671] scsi: qla4xxx: fix double free bug Sasha Levin
2020-01-16 17:04 ` Sasha Levin [this message]
2020-01-16 17:04 ` [PATCH AUTOSEL 4.19 654/671] scsi: target: core: Fix a pr_debug() argument Sasha Levin
2020-01-16 17:04 ` [PATCH AUTOSEL 4.19 661/671] scsi: qla2xxx: fix rports not being mark as lost in sync fabric scan Sasha Levin
2020-01-16 17:05 ` [PATCH AUTOSEL 4.19 662/671] scsi: qla2xxx: Fix qla2x00_request_irqs() for MSI Sasha Levin
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