Bug#318463: libext2fs: segfaults checking a 256MB ext2 USB key

[Paolo]

On Wed, Aug 17, 2005 at 07:47:23PM -0400, Theodore Ts'o wrote:
 On Wed, Aug 17, 2005 at 02:40:02PM +0200, oo-ngb wrote:
  Package: e2fslibs
  Version: 1.37-2sarge1
  Followup-For: Bug #318463
  
  hi,
  
  alas happend to me as well, leaving me with a broken fs - isn't this enough 
  to rise the level to 'important' for such key system utility?
 
 I've got a patch, and I'll work towards getting it in the next stable
 Debian update
 

update: still on Woody, but backported e2fsprogs_1.38+1.39-WIP-2005.12.31-1
and dependencies. 
e2fsck now completes the task, and after 2 runs states the disk is clean.

Seems to WFM :)

thanks

-- 
 paolo


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Bug#318463: libext2fs: segfaults checking a 256MB ext2 USB key

[oo-ngb]

Package: e2fslibs
Version: 1.37-2sarge1
Followup-For: Bug #318463

hi,

alas happend to me as well, leaving me with a broken fs - isn't this enough 
to rise the level to 'important' for such key system utility?

anyway, here's by gdb bt:

gdb --args e2fsck -y /dev/sda1

...
e2fsck 1.37 (21-Mar-2005)
/dev/sda1 contains a file system with errors, check forced.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
i_file_acl for inode 16327 (...) is 1752889074, should be zero.
Clear? yes

i_faddr for inode 16327 (...) is 705266556, should be zero.
Clear? yes

i_frag for inode 16327 (...) is 252, should be zero.
Clear? yes

i_fsize for inode 16327 (...) is 39, should be zero.
Clear? yes


Program received signal SIGSEGV, Segmentation fault.
0xb7f328fa in ext2fs_unmark_generic_bitmap () from /lib/libext2fs.so.2
(gdb) bt
#0  0xb7f328fa in ext2fs_unmark_generic_bitmap () from /lib/libext2fs.so.2
#1  0x0805712a in ?? ()
#2  0x in ?? ()
#3  0x3fc7 in ?? ()
#4  0xbfa643a0 in ?? ()
#5  0x080631d4 in _IO_stdin_used ()
#6  0xb7f24a88 in ?? ()
#7  0xbfa64415 in ?? ()
...

looks like there's a bad bo in libext2fs.

thanks

-- paolo


-- System Information:
Debian Release: 3.1
Architecture: i386 (i686)
Kernel: Linux 2.6.12.5-ss2.1.9.5-acpi050729-we18-pm.01
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages e2fslibs depends on:
ii  libc6   2.3.2.ds1-22 GNU C Library: Shared libraries an

-- no debconf information


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Bug#318463: libext2fs: segfaults checking a 256MB ext2 USB key

[Theodore Ts'o]

On Wed, Aug 17, 2005 at 02:40:02PM +0200, oo-ngb wrote:
 Package: e2fslibs
 Version: 1.37-2sarge1
 Followup-For: Bug #318463
 
 hi,
 
 alas happend to me as well, leaving me with a broken fs - isn't this enough 
 to rise the level to 'important' for such key system utility?

I've got a patch, and I'll work towards getting it in the next stable
Debian update

- Ted


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