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CVE Reference: CVE-2009-4307
NOTE: The text on this page is written by CVE MITRE and reflects neither the opinions of Secunia or the results of our research. All data on this page is written and maintained by CVE MITRE.

Original Page at CVE MITRE:
CVE-2009-4307

Description:
The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 2.6.32-git6 allows user-assisted remote attackers to cause a denial of service (divide-by-zero error and panic) via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value).

CVE Status:
Candidate

References:

SUSE
  http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
  http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html

SAID
  Secunia Advisory: SA37658
  Secunia Advisory: SA38017
  Secunia Advisory: SA38276

REDHAT
  http://www.redhat.com/support/errata/RHSA-2010-0380.html

OVAL
  http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:9874

MLIST
  http://lkml.org/lkml/2009/12/9/255

MANDRIVA
  http://www.mandriva.com/security/advisories?name=MDVSA-2011:029

CONFIRM
  http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.32-git6.log
  http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=503358ae01b70ce6909d19dd01287093f6b6271c
  http://bugzilla.kernel.org/show_bug.cgi?id=14287


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