From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Yang Yingliang <yangyingliang@huawei.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.4 07/16] usb: dwc2: check return value after calling platform_get_resource()
Date: Fri, 8 Oct 2021 13:27:57 +0200 [thread overview]
Message-ID: <20211008112715.709403391@linuxfoundation.org> (raw)
In-Reply-To: <20211008112715.444305067@linuxfoundation.org>
From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit 856e6e8e0f9300befa87dde09edb578555c99a82 ]
It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210831084236.1359677-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/dwc2/hcd.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index f29fbadb0548..78329d0e9af0 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -5074,6 +5074,10 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg)
hcd->has_tt = 1;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ retval = -EINVAL;
+ goto error1;
+ }
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
--
2.33.0
next prev parent reply other threads:[~2021-10-08 11:33 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-08 11:27 [PATCH 5.4 00/16] 5.4.152-rc1 review Greg Kroah-Hartman
2021-10-08 11:27 ` [PATCH 5.4 01/16] net: mdio: introduce a shutdown method to mdio device drivers Greg Kroah-Hartman
2021-10-08 11:27 ` [PATCH 5.4 02/16] xen-netback: correct success/error reporting for the SKB-with-fraglist case Greg Kroah-Hartman
2021-10-08 11:27 ` [PATCH 5.4 03/16] sparc64: fix pci_iounmap() when CONFIG_PCI is not set Greg Kroah-Hartman
2021-10-08 11:27 ` [PATCH 5.4 04/16] ext2: fix sleeping in atomic bugs on error Greg Kroah-Hartman
2021-10-08 11:27 ` [PATCH 5.4 05/16] scsi: sd: Free scsi_disk device via put_device() Greg Kroah-Hartman
2021-10-08 11:27 ` [PATCH 5.4 06/16] usb: testusb: Fix for showing the connection speed Greg Kroah-Hartman
2021-10-08 11:27 ` Greg Kroah-Hartman [this message]
2021-10-08 11:27 ` [PATCH 5.4 08/16] selftests: be sure to make khdr before other targets Greg Kroah-Hartman
2021-10-08 11:27 ` [PATCH 5.4 09/16] selftests:kvm: fix get_warnings_count() ignoring fscanf() return warn Greg Kroah-Hartman
2021-10-08 11:28 ` [PATCH 5.4 10/16] scsi: ses: Retry failed Send/Receive Diagnostic commands Greg Kroah-Hartman
2021-10-08 11:28 ` [PATCH 5.4 11/16] tools/vm/page-types: remove dependency on opt_file for idle page tracking Greg Kroah-Hartman
2021-10-08 11:28 ` [PATCH 5.4 12/16] KVM: do not shrink halt_poll_ns below grow_start Greg Kroah-Hartman
2021-10-08 11:28 ` [PATCH 5.4 13/16] kvm: x86: Add AMD PMU MSRs to msrs_to_save_all[] Greg Kroah-Hartman
2021-10-08 11:28 ` [PATCH 5.4 14/16] perf/x86: Reset destroy callback on event init failure Greg Kroah-Hartman
2021-10-08 11:28 ` [PATCH 5.4 15/16] silence nfscache allocation warnings with kvzalloc Greg Kroah-Hartman
2021-10-08 11:28 ` [PATCH 5.4 16/16] libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung 860 and 870 SSD Greg Kroah-Hartman
2021-10-08 19:23 ` [PATCH 5.4 00/16] 5.4.152-rc1 review Florian Fainelli
2021-10-08 20:47 ` Shuah Khan
2021-10-08 20:47 ` Shuah Khan
2021-10-08 21:04 ` Guenter Roeck
2021-10-09 4:35 ` Naresh Kamboju
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