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CVE-2012-2100

Published: Jul 3, 2012

Modified: Aug 6, 2024

PUBLISHED

Description

The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value). NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

vendor-advisory

x_refsource_REDHAT

https://bugzilla.redhat.com/show_bug.cgi?id=809687

x_refsource_CONFIRM

vendor-advisory

x_refsource_REDHAT

vdb-entry

x_refsource_BID

[oss-security] 20120412 Re: fix to CVE-2009-4307

mailing-list

x_refsource_MLIST

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d50f2ab6f050311dbf7b8f5501b25f0bf64a439b

x_refsource_CONFIRM

https://github.com/torvalds/linux/commit/d50f2ab6f050311dbf7b8f5501b25f0bf64a439b

x_refsource_CONFIRM

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2

x_refsource_CONFIRM

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