From: sashiko-bot@kernel.org
To: "YuanZhe Liu" <25031212351@stu.xidian.edu.cn>
Cc: linux-usb@vger.kernel.org
Subject: Re: [PATCH v2] usb: xhci: Fix use-after-free race in xhci_stop_device()
Date: Mon, 26 Oct 2026 12:48:49 +0000 [thread overview]
Message-ID: <sashiko-outbox-185246@kernel.org> (raw)
In-Reply-To: <20261026123628.7493-1-25031212351@stu.xidian.edu.cn>
> A KASAN slab-use-after-free read was observed in xhci_stop_device():
>
> BUG: KASAN: slab-use-after-free in xhci_stop_device.constprop.0.isra.0+0x395/0x430
> drivers/usb/host/xhci-hub.c:479
> Read of size 8 at addr ffff88804e85d2f0
>
> Freed by task 585700:
> kfree+0xf8/0x390 mm/slub.c:6566
> xhci_free_virt_device+0x3f/0x50 drivers/usb/host/xhci-mem.c:881
> xhci_free_dev+0x286/0x350 drivers/usb/host/xhci.c:4131
> usb_disconnect+0x6b6/0x910 drivers/usb/core/hub.c:2391
> ...
> usbdev_ioctl+0x6f05/0x86d0 drivers/usb/core/devio.c:2826
>
> Allocated by task 572283:
> [ ... ]
> Co-developed-by: Bin Yu <byu@xidian.edu.cn>
> Signed-off-by: Bin Yu <byu@xidian.edu.cn>
> Co-developed-by: Cheng Wen <wencheng@xidian.edu.cn>
> Signed-off-by: Cheng Wen <wencheng@xidian.edu.cn>
> Signed-off-by: YuanZhe Liu <25031212351@stu.xidian.edu.cn>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261026123628.7493-1-25031212351@stu.xidian.edu.cn?part=1
next prev parent reply other threads:[~2026-10-26 12:48 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-26 12:36 [PATCH v2] usb: xhci: Fix use-after-free race in xhci_stop_device() YuanZhe Liu
2026-10-26 12:48 ` sashiko-bot [this message]
2026-10-30 6:01 ` YuanZhe Liu
2026-11-03 14:56 ` Mathias Nyman
2026-11-03 16:01 ` [PATCH v3] " YuanZhe Liu
2026-11-03 23:00 ` Michal Pecio
2026-11-04 1:32 ` [PATCH v4] " YuanZhe Liu
2026-11-04 1:48 ` sashiko-bot
2026-11-04 3:56 ` [PATCH v5] " YuanZhe Liu
2026-11-04 4:10 ` sashiko-bot
2026-11-04 15:02 ` Alan Stern
2026-11-04 16:59 ` Michal Pecio
2026-11-04 15:15 ` YuanZhe Liu
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