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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sirong Wang <wangsirong@huawei.com>,
	Weihang Li <liweihang@hisilicon.com>,
	Jason Gunthorpe <jgg@mellanox.com>,
	Sasha Levin <sashal@kernel.org>,
	linux-rdma@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 02/25] RDMA/hns: Correct the value of HNS_ROCE_HEM_CHUNK_LEN
Date: Fri, 22 Nov 2019 14:48:35 -0500	[thread overview]
Message-ID: <20191122194859.24508-2-sashal@kernel.org> (raw)
In-Reply-To: <20191122194859.24508-1-sashal@kernel.org>

From: Sirong Wang <wangsirong@huawei.com>

[ Upstream commit 531eb45b3da4267fc2a64233ba256c8ffb02edd2 ]

Size of pointer to buf field of struct hns_roce_hem_chunk should be
considered when calculating HNS_ROCE_HEM_CHUNK_LEN, or sg table size will
be larger than expected when allocating hem.

Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver")
Link: https://lore.kernel.org/r/1572575610-52530-2-git-send-email-liweihang@hisilicon.com
Signed-off-by: Sirong Wang <wangsirong@huawei.com>
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hns/hns_roce_hem.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.h b/drivers/infiniband/hw/hns/hns_roce_hem.h
index e8850d59e7804..a94444db3045a 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hem.h
+++ b/drivers/infiniband/hw/hns/hns_roce_hem.h
@@ -54,7 +54,7 @@ enum {
 
 #define HNS_ROCE_HEM_CHUNK_LEN	\
 	 ((256 - sizeof(struct list_head) - 2 * sizeof(int)) /	 \
-	 (sizeof(struct scatterlist)))
+	 (sizeof(struct scatterlist) + sizeof(void *)))
 
 #define check_whether_bt_num_3(type, hop_num) \
 	(type < HEM_TYPE_MTT && hop_num == 2)
-- 
2.20.1


  reply	other threads:[~2019-11-22 19:49 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-22 19:48 [PATCH AUTOSEL 4.19 01/25] autofs: fix a leak in autofs_expire_indirect() Sasha Levin
2019-11-22 19:48 ` Sasha Levin [this message]
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 03/25] xfrm: Fix memleak on xfrm state destroy Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 04/25] iwlwifi: pcie: don't consider IV len in A-MSDU Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 05/25] exportfs_decode_fh(): negative pinned may become positive without the parent locked Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 06/25] audit_get_nd(): don't unlock parent too early Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 07/25] NFC: nxp-nci: Fix NULL pointer dereference after I2C communication error Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 08/25] xfrm: release device reference for invalid state Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 09/25] Input: cyttsp4_core - fix use after free bug Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 10/25] sched/core: Avoid spurious lock dependencies Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 11/25] perf/core: Consistently fail fork on allocation failures Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 12/25] ALSA: pcm: Fix stream lock usage in snd_pcm_period_elapsed() Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 13/25] drm/sun4i: tcon: Set min division of TCON0_DCLK to 1 Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 14/25] selftests: kvm: fix build with glibc >= 2.30 Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 15/25] net: usb: qmi_wwan: add support for Foxconn T77W968 LTE modules Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 16/25] slip: Fix memory leak in slip_open error path Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 17/25] net: cdc_ncm: Signedness bug in cdc_ncm_set_dgram_size() Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 18/25] slcan: Fix memory leak in error path Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 19/25] rsxx: add missed destroy_workqueue calls in remove Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 20/25] ax88172a: fix information leak on short answers Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 21/25] net: ep93xx_eth: fix mismatch of request_mem_region in remove Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 22/25] i2c: acpi: Force bus speed to 400KHz if a Silead touchscreen is present Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 23/25] i2c: core: fix use after free in of_i2c_notify Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 24/25] Input: synaptics - enable RMI mode for X1 Extreme 2nd Generation Sasha Levin
2019-11-22 19:55   ` Dmitry Torokhov
2019-12-06 12:14     ` Sasha Levin
2019-11-22 19:48 ` [PATCH AUTOSEL 4.19 25/25] net: gemini: add missed free_netdev Sasha Levin

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