Re: [linux-next:master] [netfs] a05b682d49: BUG:KASAN:slab-use-after-free_in_copy_from_iter

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hi, David,

On Thu, Sep 19, 2024 at 08:14:50AM +0100, David Howells wrote:
> Oliver Sang <oliver.sang@xxxxxxxxx> wrote:
> 
> > > Can you tell me SMB server you're using?  Samba, ksmbd, Windows, Azure?  I'm
> > > guessing one of the first two.
> > 
> > we actually use local mount to simulate smb. I attached an output for details.
> > 
> > 2024-09-11 23:30:58 mkdir -p /cifs/sda1
> > 2024-09-11 23:30:58 timeout 5m mount -t cifs -o vers=2.0 -o user=root,password=pass //localhost/fs/sda1 /cifs/sda1
> > mount cifs success
> 
> Does your mount command run up samba or something?  This doesn't seem to work
> on my system.  I get:
> 
> andromeda32# mount -t cifs -o vers=2.0 -o user=root,password=pass //localhost/fs/sda6 /mnt
> mount error(111): could not connect to ::1mount error(111): could not connect to 127.0.0.1Unable to find suitable address.

have you enable the samba with a /fs path? such like:

start_smbd()
{
	# setup smb.conf
	cat >> /etc/samba/smb.conf <<EOF
[fs]
   path = /fs
   comment = lkp cifs
   browseable = yes
   read only = no
EOF
	# setup passwd
	(echo "pass"; echo "pass") | smbpasswd -s -a $(whoami)
	# restart service
	systemctl restart smb.service
}

(https://github.com/intel/lkp-tests/blob/48db85cbe0f249d075bc7eef263b485f02cb153d/lib/fs_ext.sh#L93C1-L107C2)

> 
> David
> 




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