Fwd: [Bug 201869] New: CIFS: block on llistxattr for SMB1

[Jeremy Allison]

On Tue, Dec 04, 2018 at 02:23:16PM -0600, Steve French wrote:
> This is a Samba server bug - see frame 17 of the trace I attached.
> The Samba server hung on the level 512 query info (and then hangs
> again after the client gives up and reconnects etc.).

Yes, smbd doesn't support EA's on symlinks. That's probably not
going to change in the short term.

> ---------- Forwarded message ---------
> From: <bugzilla-daemon at bugzilla.kernel.org>
> Date: Mon, Dec 3, 2018 at 9:36 PM
> Subject: [Bug 201869] New: CIFS: block on llistxattr for SMB1
> To: <smfrench at gmail.com>
> 
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=201869
> 
>             Bug ID: 201869
>            Summary: CIFS:  block on llistxattr for SMB1
>            Product: File System
>            Version: 2.5
>     Kernel Version: 4.20.0-rc4+
>           Hardware: All
>                 OS: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: high
>           Priority: P1
>          Component: CIFS
>           Assignee: fs_cifs at kernel-bugs.osdl.org
>           Reporter: fengxiaoli0714 at gmail.com
>         Regression: No
> 
> Mount cifs share with vers=1.0,sfu,actimeo=0. And can't return when execute
> getfattr a symbol link file.
> 
> [root at hp-dl360g9-13 ~]# mount |grep cifs1
> //localhost/cifs on /root/cifs type cifs
> (rw,relatime,vers=1.0,cache=strict,username=root,uid=0,noforceuid,gid=0,noforcegid,addr=0000:0000:0000:0000:0000:0000:0000:0001,soft,unix,posixpaths,serverino,mapposix,sfu,acl,rsize=1048576,wsize=65536,echo_interval=60,actimeo=0,user=root)
> [root at hp-dl360g9-13 ~]# mkdir ~/cifs/dir
> [root at hp-dl360g9-13 ~]# ln -s ~/cifs/dir ~/cifs/dir2
> [root at hp-dl360g9-13 ~]# setfattr -h -n user.name ~/cifs/dir2
> setfattr: /root/cifs1/dir2: Operation not permitted
> [root at hp-dl360g9-13 ~]# getfattr --absolute-names -dh -m user /root/cifs1/dir2
> 
> Here can't return.
> 
> --
> You are receiving this mail because:
> You are watching the assignee of the bug.
> 
> 
> -- 
> Thanks,
> 
> Steve