linux-kernel - Re: [PATCH] net: ethernet: Fix memleak in ethoc

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Date:   Wed, 23 Dec 2020 13:11:49 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Dinghao Liu <dinghao.liu@....edu.cn>, kjlu@....edu,
        "David S. Miller" <davem@...emloft.net>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Arnd Bergmann <arnd@...db.de>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: ethernet: Fix memleak in ethoc_probe

On Wed, 23 Dec 2020 22:00:44 +0100 Andrew Lunn wrote:
> On Wed, Dec 23, 2020 at 12:32:18PM -0800, Jakub Kicinski wrote:
> > On Wed, 23 Dec 2020 16:33:04 +0100 Andrew Lunn wrote:  
> > > On Wed, Dec 23, 2020 at 07:06:12PM +0800, Dinghao Liu wrote:  
> > > > When mdiobus_register() fails, priv->mdio allocated
> > > > by mdiobus_alloc() has not been freed, which leads
> > > > to memleak.
> > > > 
> > > > Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>    
> > > 
> > > Fixes: bfa49cfc5262 ("net/ethoc: fix null dereference on error exit path")
> > > 
> > > Reviewed-by: Andrew Lunn <andrew@...n.ch>  
> > 
> > Ooof, I applied without looking at your email and I added:
> > 
> > Fixes: e7f4dc3536a4 ("mdio: Move allocation of interrupts into core")  
> 
> [Goes and looks deeper]
> 
> Yes, commit e7f4dc3536a4 looks like it introduced the original
> problem. bfa49cfc5262 just moved to code around a bit.
> 
> Does patchwork not automagically add Fixes: lines from full up emails?
> That seems like a reasonable automation.

Looks like it's been a TODO for 3 years now:

https://github.com/getpatchwork/patchwork/issues/151

:(