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prionPRIOn knowledge basePRION:CVE-2009-4307
HistoryDec 13, 2009 - 1:30 a.m.

Denial of service

2009-12-1301:30:00
PRIOn knowledge base
www.prio-n.com
7

AI Score

6.2

Confidence

Low

EPSS

0.029

Percentile

90.8%

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).