linux-kernel - Re: [PATCH] USB: core: remove the move buf action

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Message-ID: <tencent_1E3DB937EA968236C64B76757376BD675E09@qq.com>
Date: Wed, 10 Sep 2025 17:57:43 +0800
From: Edward Adam Davis <eadavis@...com>
To: gregkh@...uxfoundation.org
Cc: dakr@...nel.org,
	eadavis@...com,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	rafael@...nel.org,
	syzbot+b6445765657b5855e869@...kaller.appspotmail.com,
	syzkaller-bugs@...glegroups.com,
	hannelotta@...il.com
Subject: Re: [PATCH] USB: core: remove the move buf action

On Wed, 10 Sep 2025 11:00:43 +0200, Greg KH wrote:
> > The buffer size of sysfs is fixed at PAGE_SIZE, and the page offset
> > of the buf parameter of sysfs_emit_at() must be 0, there is no need
> > to manually manage the buf pointer offset.
> >
> > Fixes: 711d41ab4a0e ("usb: core: Use sysfs_emit_at() when showing dynamic IDs")
> > Reported-by: syzbot+b6445765657b5855e869@...kaller.appspotmail.com
> > Closes: https://syzkaller.appspot.com/bug?extid=b6445765657b5855e869
> > Tested-by: syzbot+b6445765657b5855e869@...kaller.appspotmail.com
> > Signed-off-by: Edward Adam Davis <eadavis@...com>
> > ---
> >  drivers/usb/core/driver.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> While this fix looks correct, your cc: list is very odd as this is a
> linux-usb bug, not a driver core issue, right?
> 
> At the least, cc: the person who wrote the offending change?