From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>,
Mathias Nyman <mathias.nyman@intel.com>
Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
<linux-usb@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Eddie Hung <eddie.hung@mediatek.com>
Subject: [PATCH RESEND 3/9] usb: xhci-mtk: fix use-after-free of mtk->hcd
Date: Tue, 17 Aug 2021 16:36:23 +0800 [thread overview]
Message-ID: <1629189389-18779-3-git-send-email-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <1629189389-18779-1-git-send-email-chunfeng.yun@mediatek.com>
BUG: KASAN: use-after-free in usb_hcd_is_primary_hcd+0x38/0x60
Call trace:
dump_backtrace+0x0/0x3dc
show_stack+0x20/0x2c
dump_stack+0x15c/0x1d4
print_address_description+0x7c/0x510
kasan_report+0x164/0x1ac
__asan_report_load8_noabort+0x44/0x50
usb_hcd_is_primary_hcd+0x38/0x60
xhci_mtk_runtime_suspend+0x68/0x148
pm_generic_runtime_suspend+0x90/0xac
__rpm_callback+0xb8/0x1f4
rpm_callback+0x54/0x1d0
rpm_suspend+0x4e0/0xc84
__pm_runtime_suspend+0xc4/0x114
xhci_mtk_probe+0xa58/0xd00
This may happen when probe fails, needn't suspend it synchronously,
fix it by using pm_runtime_put_noidle().
Reported-by: Pi Hsun <pihsun@google.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
drivers/usb/host/xhci-mtk.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index d66b6a8b59ba..f6d161670c4e 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -573,7 +573,7 @@ static int xhci_mtk_probe(struct platform_device *pdev)
xhci_mtk_ldos_disable(mtk);
disable_pm:
- pm_runtime_put_sync_autosuspend(dev);
+ pm_runtime_put_noidle(dev);
pm_runtime_disable(dev);
return ret;
}
--
2.18.0
next prev parent reply other threads:[~2021-08-17 8:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-17 8:36 [PATCH RESEND 1/9] dt-bindings: usb: mtk-xhci: add optional property to disable usb2 ports Chunfeng Yun
2021-08-17 8:36 ` [PATCH RESEND 2/9] dt-bindings: usb: mtk-xhci: add compatible for mt8195 Chunfeng Yun
2021-08-17 8:36 ` Chunfeng Yun [this message]
2021-08-17 8:36 ` [PATCH RESEND 4/9] usb: xhci-mtk: support option to disable usb2 ports Chunfeng Yun
2021-08-17 8:36 ` [PATCH RESEND 5/9] usb: xhci-mtk: fix issue of out-of-bounds array access Chunfeng Yun
2021-08-17 8:36 ` [PATCH RESEND 6/9] usb: xhci-mtk: update fs bus bandwidth by bw_budget_table Chunfeng Yun
2021-08-17 8:36 ` [PATCH RESEND 7/9] usb: xhci-mtk: check boundary before check tt Chunfeng Yun
2021-08-17 8:36 ` [PATCH RESEND 8/9] usb: xhci-mtk: add a member of num_esit Chunfeng Yun
2021-08-17 8:36 ` [PATCH RESEND 9/9] usb: xhci-mtk: modify the SOF/ITP interval for mt8195 Chunfeng Yun
2021-08-18 14:10 ` [PATCH RESEND 1/9] dt-bindings: usb: mtk-xhci: add optional property to disable usb2 ports Rob Herring
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