From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sven Van Asbroeck <thesven73@gmail.com>,
Tony Lindgren <tony@atomide.com>, Bin Liu <b-liu@ti.com>,
Sven Van Asbroeck <TheSven73@gmail.com>,
Felipe Balbi <felipe.balbi@linux.intel.com>,
Sasha Levin <sashal@kernel.org>,
linux-usb@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 098/371] usb: phy: twl6030-usb: fix possible use-after-free on remove
Date: Thu, 16 Jan 2020 12:19:30 -0500 [thread overview]
Message-ID: <20200116172403.18149-41-sashal@kernel.org> (raw)
In-Reply-To: <20200116172403.18149-1-sashal@kernel.org>
From: Sven Van Asbroeck <thesven73@gmail.com>
[ Upstream commit 5895d311d28f2605e2f71c1a3e043ed38f3ac9d2 ]
In remove(), use cancel_delayed_work_sync() to cancel the
delayed work. Otherwise there's a chance that this work
will continue to run until after the device has been removed.
This issue was detected with the help of Coccinelle.
Cc: Tony Lindgren <tony@atomide.com>
Cc: Bin Liu <b-liu@ti.com>
Fixes: b6a619a883c3 ("usb: phy: Check initial state for twl6030")
Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/phy/phy-twl6030-usb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c
index b5dc077ed7d3..8e14fa221191 100644
--- a/drivers/usb/phy/phy-twl6030-usb.c
+++ b/drivers/usb/phy/phy-twl6030-usb.c
@@ -413,7 +413,7 @@ static int twl6030_usb_remove(struct platform_device *pdev)
{
struct twl6030_usb *twl = platform_get_drvdata(pdev);
- cancel_delayed_work(&twl->get_status_work);
+ cancel_delayed_work_sync(&twl->get_status_work);
twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK,
REG_INT_MSK_LINE_C);
twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK,
--
2.20.1
next parent reply other threads:[~2020-01-16 18:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200116172403.18149-1-sashal@kernel.org>
2020-01-16 17:19 ` Sasha Levin [this message]
2020-01-16 17:19 ` [PATCH AUTOSEL 4.14 106/371] cdc-wdm: pass return value of recover_from_urb_loss Sasha Levin
2020-01-16 17:20 ` [PATCH AUTOSEL 4.14 178/371] usb: gadget: fsl: fix link error against usb-gadget module Sasha Levin
2020-01-16 17:20 ` [PATCH AUTOSEL 4.14 179/371] dwc2: gadget: Fix completed transfer size calculation in DDMA Sasha Levin
2020-01-16 17:22 ` [PATCH AUTOSEL 4.14 253/371] usb: host: xhci-hub: fix extra endianness conversion Sasha Levin
2020-01-16 17:23 ` [PATCH AUTOSEL 4.14 321/371] USB: usb-skeleton: fix use-after-free after driver unbind Sasha Levin
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