Re: [PATCH 188/190] Revert "scsi: 3w-xxxx: fix a missing-check bug"

Greg Kroah-Hartman
2021-04-27T16:56:32Z

On Wed, Apr 21, 2021 at 03:01:03PM +0200, Greg Kroah-Hartman wrote:
> This reverts commit 9899e4d3523faaef17c67141aa80ff2088f17871.
>
> 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: Wenwen Wang <wang6495@umn.edu>
> Cc: Adam Radford <aradford@gmail.com>
> Cc: Martin K. Petersen <martin.petersen@oracle.com>
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> ---
> drivers/scsi/3w-xxxx.c | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
> index d90b9fca4aea..8f52f35e40f1 100644
> --- a/drivers/scsi/3w-xxxx.c
> +++ b/drivers/scsi/3w-xxxx.c
> @@ -1035,9 +1035,6 @@ static int tw_chrdev_open(struct inode *inode, struct file *file)
>
> dprintk(KERN_WARNING "3w-xxxx: tw_ioctl_open()\n");
>
> - if (!capable(CAP_SYS_ADMIN))
> - return -EACCES;
> -
> minor_number = iminor(inode);
> if (minor_number >= tw_device_extension_count)
> return -ENODEV;
> --
> 2.31.1
>

The original commit was correct, dropping this revert.

greg k-h