Re: [PATCH 045/190] Revert "usb: gadget: fix potential double-free in m66592_probe."

Felipe Balbi
2021-04-22T11:43:27Z

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Greg Kroah-Hartman <gregkh@linuxfoundation.org> writes:

> This reverts commit 44734a594196bf1d474212f38fe3a0d37a73278b.
>
> 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: Qiushi Wu <wu000273@umn.edu>
> Cc: Felipe Balbi <balbi@kernel.org>
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> ---
> drivers/usb/gadget/udc/m66592-udc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c
> index 931e6362a13d..75d16a8902e6 100644
> --- a/drivers/usb/gadget/udc/m66592-udc.c
> +++ b/drivers/usb/gadget/udc/m66592-udc.c
> @@ -1667,7 +1667,7 @@ static int m66592_probe(struct platform_device *pdev)
>
> err_add_udc:
> m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
> - m66592->ep0_req = NULL;

harmless, can be reverted and left reverted, I guess.

--
balbi

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