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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Gen Zhang <blackgod016574@gmail.com>,
	"David S . Miller" <davem@davemloft.net>,
	Sasha Levin <sashal@kernel.org>,
	sparclinux@vger.kernel.org
Subject: [PATCH AUTOSEL 5.1 36/59] mdesc: fix a missing-check bug in get_vdev_port_node_info()
Date: Fri, 14 Jun 2019 16:28:20 -0400
Message-ID: <20190614202843.26941-36-sashal@kernel.org> (raw)
In-Reply-To: <20190614202843.26941-1-sashal@kernel.org>

From: Gen Zhang <blackgod016574@gmail.com>

[ Upstream commit 80caf43549e7e41a695c6d1e11066286538b336f ]

In get_vdev_port_node_info(), 'node_info->vdev_port.name' is allcoated
by kstrdup_const(), and it returns NULL when fails. So
'node_info->vdev_port.name' should be checked.

Signed-off-by: Gen Zhang <blackgod016574@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/sparc/kernel/mdesc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index 9a26b442f820..8e645ddac58e 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -356,6 +356,8 @@ static int get_vdev_port_node_info(struct mdesc_handle *md, u64 node,
 
 	node_info->vdev_port.id = *idp;
 	node_info->vdev_port.name = kstrdup_const(name, GFP_KERNEL);
+	if (!node_info->vdev_port.name)
+		return -1;
 	node_info->vdev_port.parent_cfg_hdl = *parent_cfg_hdlp;
 
 	return 0;
-- 
2.20.1


  parent reply index

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-14 20:27 [PATCH AUTOSEL 5.1 01/59] lkdtm/usercopy: Moves the KERNEL_DS test to non-canonical Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 02/59] ARC: fix build warnings Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 03/59] dmaengine: jz4780: Fix transfers being ACKed too soon Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 04/59] dmaengine: dw-axi-dmac: fix null dereference when pointer first is null Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 05/59] dmaengine: mediatek-cqdma: sleeping in atomic context Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 06/59] dmaengine: sprd: Fix the possible crash when getting descriptor status Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 07/59] dmaengine: sprd: Add validation of current descriptor in irq handler Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 08/59] dmaengine: sprd: Fix the incorrect start for 2-stage destination channels Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 09/59] dmaengine: sprd: Fix block length overflow Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 10/59] dmaengine: sprd: Fix the right place to configure 2-stage transfer Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 11/59] ARC: [plat-hsdk]: Add missing multicast filter bins number to GMAC node Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 12/59] ARC: [plat-hsdk]: Add missing FIFO size entry in " Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 13/59] MIPS: mark ginvt() as __always_inline Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 14/59] fpga: stratix10-soc: fix use-after-free on s10_init() Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 15/59] fpga: dfl: afu: Pass the correct device to dma_mapping_error() Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 16/59] fpga: dfl: Add lockdep classes for pdata->lock Sasha Levin
2019-06-15  5:47   ` Greg Kroah-Hartman
2019-06-15 22:41     ` Sasha Levin
2019-06-16  7:09       ` Greg Kroah-Hartman
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 17/59] fpga: dfl: expand minor range when registering chrdev region Sasha Levin
2019-06-15  5:48   ` Greg Kroah-Hartman
2019-06-23 19:26     ` Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 18/59] parport: Fix mem leak in parport_register_dev_model Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 19/59] parisc: Fix compiler warnings in float emulation code Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 20/59] habanalabs: fix bug in checking huge page optimization Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 21/59] IB/rdmavt: Fix alloc_qpn() WARN_ON() Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 22/59] IB/hfi1: Insure freeze_work work_struct is canceled on shutdown Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 23/59] IB/{qib, hfi1, rdmavt}: Correct ibv_devinfo max_mr value Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 24/59] IB/hfi1: Validate page aligned for a given virtual address Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 25/59] MIPS: uprobes: remove set but not used variable 'epc' Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 26/59] crypto: hmac - fix memory leak in hmac_init_tfm() Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 27/59] xtensa: Fix section mismatch between memblock_reserve and mem_reserve Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 28/59] kselftest/cgroup: fix unexpected testing failure on test_memcontrol Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 29/59] kselftest/cgroup: fix unexpected testing failure on test_core Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 30/59] kselftest/cgroup: fix incorrect test_core skip Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 31/59] userfaultfd: selftest: fix compiler warning Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 32/59] selftests: vm: install test_vmalloc.sh for run_vmtests Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 33/59] nds32: Avoid IEX status being incorrectly modified Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 34/59] net: dsa: mv88e6xxx: avoid error message on remove from VLAN 0 Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 35/59] net: hns: Fix loopback test failed at copper ports Sasha Levin
2019-06-14 20:28 ` Sasha Levin [this message]
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 37/59] sparc: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 38/59] net: ethernet: mediatek: Use hw_feature to judge if HWLRO is supported Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 39/59] net: ethernet: mediatek: Use NET_IP_ALIGN to judge if HW RX_2BYTE_OFFSET is enabled Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 40/59] selftests: set sysctl bc_forwarding properly in router_broadcast.sh Sasha Levin

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