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From: Greg KH <gregkh@linuxfoundation.org>
To: 徐晗翔 <xuhx@hust.edu.cn>
Cc: mathias.nyman@intel.com, linux-kernel@vger.kernel.org,
	linux-usb@vger.kernel.org
Subject: Re: usb: xhci: unlocked secondary-interrupter/virt-device teardown vs sideband API users -- use-after-free/double-free (remove and resume-reset paths; needs CONFIG_XHCI_SIDEBAND)
Date: Fri, 30 Oct 2026 13:02:10 +0100	[thread overview]
Message-ID: <2026103022-ovary-cloak-f017@gregkh> (raw)
In-Reply-To: <35c7c41b.1ae57.1a18c9d1018.Coremail.xuhx@hust.edu.cn>

On Fri, Oct 30, 2026 at 07:41:05PM +0800, 徐晗翔 wrote:
> xhci frees its interrupter[] and devs[] software state on two paths
> that hold no xhci->lock -- xhci_stop() -> xhci_mem_cleanup()

<snip>

These are all pointless, sorry.

Please just submit working patches.  Doing fault injection of random
failures is an interesting research project, but doesn't do much for us
without a working patch to resolve the issue.  I've just dropped all of
these "reports" now.

thanks,

greg k-h

      reply	other threads:[~2026-10-30 12:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-30 11:41 徐晗翔
2026-10-30 12:02 ` Greg KH [this message]

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