Re: drivers/uio/uio_pci_generic_sva.c:140 probe() warn: passing devm_ allocated variable to kfree. 'udev'

[Dan Carpenter]

On Sat, Mar 21, 2026 at 05:51:15PM +0800, yaxing guo wrote:
> > 3397c3cd859a2c Yaxing Guo 2025-09-26  135  	pci_set_drvdata(pdev, udev);
> > 3397c3cd859a2c Yaxing Guo 2025-09-26  136
> > 3397c3cd859a2c Yaxing Guo 2025-09-26  137  	return 0;
> > 3397c3cd859a2c Yaxing Guo 2025-09-26  138
> > 3397c3cd859a2c Yaxing Guo 2025-09-26  139  out_free:
> > 3397c3cd859a2c Yaxing Guo 2025-09-26 @140  	kfree(udev);
> > 
> > So this is a double free.
> > 
> > 3397c3cd859a2c Yaxing Guo 2025-09-26  141  out_disable:
> > 3397c3cd859a2c Yaxing Guo 2025-09-26  142  	pci_disable_device(pdev);
> > 3397c3cd859a2c Yaxing Guo 2025-09-26  143
> > 3397c3cd859a2c Yaxing Guo 2025-09-26  144  	return ret;
> > 3397c3cd859a2c Yaxing Guo 2025-09-26  145  }
> > 
> 
> Hi Dan,
> The double-free issue has been addressed by Shuangshuo Li, who has already
> submitted a fix patch:
> 
> https://lore.kernel.org/lkml/20260226153250.18079-1-lgs201920130244@xxxxxxxxx/
> 

Okay.  Good.  I actually reported this bug to you last year in
November.

https://lore.kernel.org/all/202511280815.WV9iCJZb-lkp@xxxxxxxxx/

regards,
dan carpenter