CVE-2017-18249

kernel: Race condition in fs/f2fs/node.c:add_free_nid() function allows local users to cause denial of service

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.0

Review impact separately from score.

Published · March 22, 2017

Updated · June 28, 2026

Description

The add_free_nid function in fs/f2fs/node.c in the Linux kernel, before 4.12, does not properly track an allocated nid. This allows local users to cause a denial of service (race condition) or possibly have unspecified other impacts via concurrent threads.

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 · 5.5
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')