linux-kernel - Re: [PATCH 108/190] Revert "usb: u132-hcd: fix potential NULL pointer dereference"

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Message-ID: <YIghqz7ojsUT8NgQ@kroah.com>
Date:   Tue, 27 Apr 2021 16:37:31 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Kangjie Lu <kjlu@....edu>
Subject: Re: [PATCH 108/190] Revert "usb: u132-hcd: fix potential NULL
 pointer dereference"

On Wed, Apr 21, 2021 at 02:59:43PM +0200, Greg Kroah-Hartman wrote:
> This reverts commit 3de3dbe7c13210171ba8411e36b409a2c29c7415.
> 
> Commits from @umn.edu addresses have been found to be submitted in "bad
> faith" to try to test the kernel community's ability to review "known
> malicious" changes.  The result of these submissions can be found in a
> paper published at the 42nd IEEE Symposium on Security and Privacy
> entitled, "Open Source Insecurity: Stealthily Introducing
> Vulnerabilities via Hypocrite Commits" written by Qiushi Wu (University
> of Minnesota) and Kangjie Lu (University of Minnesota).
> 
> Because of this, all submissions from this group must be reverted from
> the kernel tree and will need to be re-reviewed again to determine if
> they actually are a valid fix.  Until that work is complete, remove this
> change to ensure that no problems are being introduced into the
> codebase.
> 
> Cc: Kangjie Lu <kjlu@....edu>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> ---
>  drivers/usb/host/u132-hcd.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
> index eb96e1e15b71..2b7bcbe2df4b 100644
> --- a/drivers/usb/host/u132-hcd.c
> +++ b/drivers/usb/host/u132-hcd.c
> @@ -3195,8 +3195,6 @@ static int __init u132_hcd_init(void)
>  		return -ENODEV;
>  	printk(KERN_INFO "driver %s\n", hcd_name);
>  	workqueue = create_singlethread_workqueue("u132");
> -	if (!workqueue)
> -		return -ENOMEM;
>  	retval = platform_driver_register(&u132_platform_driver);
>  	if (retval)
>  		destroy_workqueue(workqueue);
> -- 
> 2.31.1
> 

This commit was correct, will drop this.

greg k-h