CVE-2014-7283

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-10-13 · updated 2026-06-17
Weakness: CWE-399

Description

The xfs_da3_fixhashpath function in fs/xfs/xfs_da_btree.c in the xfs implementation in the Linux kernel before 3.14.2 does not properly compare btree hash values, which allows local users to cause a denial of service (filesystem corruption, and OOPS or panic) via operations on directories that have hash collisions, as demonstrated by rmdir operations.

Affected products

Linux kernel: before 3.14.2 — fixed in 3.14.2
RedHat Mrg Realtime: 2.0

How to fix

Upgrade to a fixed version: Linux kernel 3.14.2. Check the vendor advisory for mitigations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c88547a8119e3b581318ab65e9b72f27f23e641d
http://marc.info/?l=linux-xfs&m=139590613002926&w=2
http://rhn.redhat.com/errata/RHSA-2014-1943.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.2
http://www.openwall.com/lists/oss-security/2014/10/01/29
http://www.securityfocus.com/bid/70261
https://bugzilla.redhat.com/show_bug.cgi?id=1148777
https://github.com/torvalds/linux/commit/c88547a8119e3b581318ab65e9b72f27f23e641d
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c88547a8119e3b581318ab65e9b72f27f23e641d
http://marc.info/?l=linux-xfs&m=139590613002926&w=2
http://rhn.redhat.com/errata/RHSA-2014-1943.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.2

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