CVE-2017-18193

kernel: Mishandled extent trees in fs/f2fs/extent_cache.c can allow a local user to cause a denial of service

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Severity

Low

Red Hat Product Security

3.3

CVSS 3.0

Review impact separately from score.

Published · February 22, 2018

Updated · June 28, 2026

Description

fs/f2fs/extent_cache.c in the Linux kernel, before 4.13, mishandles extent trees. This allows local users to cause a denial of service via an application with multiple threads.

Statement

This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7, its real-time kernel, Red Hat Enterprise MRG 2, Red Hat Enterprise Linux 7 for ARM 64 and Red Hat Enterprise Linux 7 for Power 9 LE, as the code with the flaw is not built and shipped in the products listed.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 3.3
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CWE-391 · Unchecked Error Condition