linux-ext4 - Re: Possible ext4 corruption

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 10 Mar 2009 15:32:51 +1030
From:	Kevin Shanahan <kmshanah@...b.org.au>
To:	Eric Sandeen <sandeen@...hat.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: Possible ext4 corruption - ACL related?

On Mon, 2009-03-09 at 23:35 -0500, Eric Sandeen wrote:
> Kevin Shanahan wrote:
> > On Mon, 2009-03-09 at 21:57 -0500, Eric Sandeen wrote:
> >> Kevin Shanahan wrote:
> ...
> >> If you try a manual getfacl of the above files do you still get the error?
> > 
> > Yeah, same thing:
> > 
> > hermes:/srv/samba/local# getfacl apps/Gestalt.Net/SetupCD/program\ files/Business\ Objects/Common/3.5/bin/Cdo32sv.dll 
> > getfacl: apps/Gestalt.Net/SetupCD/program\040files/Business\040Objects/Common/3.5/bin/Cdo32sv.dll: Input/output error
> > 
> > Nothing extra showing up in dmesg after doing that, so it's possible the
> > two are unrelated - although, the coincidence would surprise me.
> 
> Can you try debugfs /dev/whatever, and then do:
> 
> debugfs> stat
> apps/Gestalt.Net/SetupCD/program\040files/Business\040Objects/Common/3.5/bin/Cdo32sv.dll
> 
> (all one line there, and this is assuming that apps/ is the root dir on
> that filesystem, if not adjust accordingly...)

hermes:~# debugfs /dev/dm-0 
debugfs 1.41.3 (12-Oct-2008)
debugfs:  stat "local/apps/Gestalt.Net/SetupCD/program files/Business Objects/Common/3.5/bin/Cdo32sv.dll"

Gives the following output:

  Inode: 867   Type: bad type    Mode:  0404   Flags: 0x802a61af
  Generation: 2483046020    Version: 0xb9286359:17a7fdfd
  User: 1455931783   Group: -798021131   Size: -1808719531
  File ACL: 141934744    Directory ACL: 0
  Links: 15681   Blockcount: 171984001880781
  Fragment:  Address: 956780679    Number: 0    Size: 0
   ctime: 0xdca60244:006c5b08 -- Wed Apr 23 01:54:36 2087
   atime: 0x5c9e956c:777587a4 -- Sat Mar 30 08:30:12 2019
   mtime: 0x2ce44e11:286138f8 -- Sat Nov 13 13:31:37 1993
  crtime: 0x737781cb:5661f351 -- Thu May 22 19:54:11 2031
  dtime: 0xf19c4882 -- Sat Jun 14 11:57:14 2098
  Size of extra inode fields: 3625
  BLOCKS:

And when I exit the pager and return to the prompt I also see:

  invalid inode->i_extra_isize (3625)
  debugfs: 

Cheers,
Kevin.


--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html