CVE-2009-4306

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-12-13 · updated 2026-06-16

Description

Unspecified vulnerability in the EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel 2.6.32-git6 and earlier allows local users to cause a denial of service (filesystem corruption) via unknown vectors, a different vulnerability than CVE-2009-4131.

Affected products

Linux kernel: through 2.6.32; 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5 (+333)

References

http://grsecurity.org/test/grsecurity-2.1.14-2.6.32-200912112157.patch
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
http://secunia.com/advisories/38017
http://twitter.com/fotisl/statuses/6568947714
http://twitter.com/spendergrsec/statuses/6551797457
http://twitter.com/spendergrsec/statuses/6567167692
http://twitter.com/spendergrsec/statuses/6569596339
http://twitter.com/spendergrsec/statuses/6572069107
http://twitter.com/spendergrsec/statuses/6583954567
http://twitter.com/tytso/statuses/6571730411
https://bugzilla.redhat.com/show_bug.cgi?id=547263
http://grsecurity.org/test/grsecurity-2.1.14-2.6.32-200912112157.patch

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