CVE-2012-2100

HighCVSS 7.1/10Last modified Jun 16, 2026

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.

Metrics

CVSS 2.0 7.1/10AV:N/AC:M/Au:N/C:N/I:N/A:C

Weakness enumeration

CWE-189

Affected software

No affected versions have been published.

Timeline

Published: Jul 3, 2012
Last modified: Jun 16, 2026
NVD status: Modified

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