From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Dan Carpenter <dan.carpenter@oracle.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
Sasha Levin <sashal@kernel.org>,
linux-scsi@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 08/19] scsi: iscsi: qla4xxx: fix double free in probe
Date: Fri, 20 Dec 2019 09:37:29 -0500 [thread overview]
Message-ID: <20191220143741.10220-8-sashal@kernel.org> (raw)
In-Reply-To: <20191220143741.10220-1-sashal@kernel.org>
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit fee92f25777789d73e1936b91472e9c4644457c8 ]
On this error path we call qla4xxx_mem_free() and then the caller also
calls qla4xxx_free_adapter() which calls qla4xxx_mem_free(). It leads to a
couple double frees:
drivers/scsi/qla4xxx/ql4_os.c:8856 qla4xxx_probe_adapter() warn: 'ha->chap_dma_pool' double freed
drivers/scsi/qla4xxx/ql4_os.c:8856 qla4xxx_probe_adapter() warn: 'ha->fw_ddb_dma_pool' double freed
Fixes: afaf5a2d341d ("[SCSI] Initial Commit of qla4xxx")
Link: https://lore.kernel.org/r/20191203094421.hw7ex7qr3j2rbsmx@kili.mountain
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/qla4xxx/ql4_os.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 4421f9bdfcf77..b0ad60565fe94 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -4285,7 +4285,6 @@ static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
return QLA_SUCCESS;
mem_alloc_error_exit:
- qla4xxx_mem_free(ha);
return QLA_ERROR;
}
--
2.20.1
next prev parent reply other threads:[~2019-12-20 14:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-20 14:37 [PATCH AUTOSEL 4.14 01/19] nvme_fc: add module to ops template to allow module references Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 06/19] scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func Sasha Levin
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 07/19] scsi: qla2xxx: Don't call qlt_async_event twice Sasha Levin
2019-12-20 14:37 ` Sasha Levin [this message]
2019-12-20 14:37 ` [PATCH AUTOSEL 4.14 09/19] scsi: libsas: stop discovering if oob mode is disconnected Sasha Levin
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