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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Dan Carpenter <dan.carpenter@oracle.com>,
	Sreekanth Reddy <sreekanth.reddy@broadcom.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	Sasha Levin <sashal@kernel.org>,
	MPT-FusionLinux.pdl@broadcom.com, linux-scsi@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 204/205] scsi: mpt3sas: Fix double free in attach error handling
Date: Thu, 16 Jan 2020 11:42:59 -0500
Message-ID: <20200116164300.6705-204-sashal@kernel.org> (raw)
In-Reply-To: <20200116164300.6705-1-sashal@kernel.org>

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit ee560e7bbab0c10cf3f0e71997fbc354ab2ee5cb ]

The caller also calls _base_release_memory_pools() on error so it leads to
a number of double frees:

drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->chain_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->hpr_lookup' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->internal_lookup' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->pcie_sgl_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_free_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_post_free_array_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_post_free_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->sense_dma_pool' double freed

Fixes: 74522a92bbf0 ("scsi: mpt3sas: Optimize I/O memory consumption in driver.")
Link: https://lore.kernel.org/r/20191203093652.gyntgvnkw2udatyc@kili.mountain
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/mpt3sas/mpt3sas_base.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index fea3cb6a090b..752b71cfbe12 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -5234,7 +5234,6 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc)
 					&ct->chain_buffer_dma);
 			if (!ct->chain_buffer) {
 				ioc_err(ioc, "chain_lookup: pci_pool_alloc failed\n");
-				_base_release_memory_pools(ioc);
 				goto out;
 			}
 		}
-- 
2.20.1


      parent reply index

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200116164300.6705-1-sashal@kernel.org>
2020-01-16 16:39 ` [PATCH AUTOSEL 5.4 005/205] scsi: lpfc: Fix hdwq sgl locks and irq handling Sasha Levin
2020-01-16 16:39 ` [PATCH AUTOSEL 5.4 006/205] scsi: lpfc: Fix list corruption detected in lpfc_put_sgl_per_hdwq Sasha Levin
2020-01-16 16:40 ` [PATCH AUTOSEL 5.4 061/205] scsi: esas2r: unlock on error in esas2r_nvram_read_direct() Sasha Levin
2020-01-16 16:40 ` [PATCH AUTOSEL 5.4 062/205] scsi: hisi_sas: Don't create debugfs dump folder twice Sasha Levin
2020-01-16 16:40 ` [PATCH AUTOSEL 5.4 063/205] scsi: hisi_sas: Set the BIST init value before enabling BIST Sasha Levin
2020-01-16 16:41 ` [PATCH AUTOSEL 5.4 089/205] scsi: ufs: delete redundant function ufshcd_def_desc_sizes() Sasha Levin
2020-01-16 16:41 ` [PATCH AUTOSEL 5.4 095/205] scsi: core: scsi_trace: Use get_unaligned_be*() Sasha Levin
2020-01-16 16:41 ` [PATCH AUTOSEL 5.4 122/205] scsi: lpfc: Fix a kernel warning triggered by lpfc_get_sgl_per_hdwq() Sasha Levin
2020-01-16 16:41 ` [PATCH AUTOSEL 5.4 136/205] scsi: hisi_sas: Return directly if init hardware failed Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 156/205] scsi: qla4xxx: fix double free bug Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 157/205] scsi: bnx2i: fix potential use after free Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 158/205] scsi: target: core: Fix a pr_debug() argument Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 166/205] scsi: scsi_transport_sas: Fix memory leak when removing devices Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 177/205] scsi: qla2xxx: fix rports not being mark as lost in sync fabric scan Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 178/205] scsi: qla2xxx: Fix qla2x00_request_irqs() for MSI Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 200/205] scsi: ufs: Give an unique ID to each ufs-bsg Sasha Levin
2020-01-16 16:42 ` Sasha Levin [this message]

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