5.5

CVE-2024-14027: xattr: switch to CLASS(fd)

Analyzed
AliasesUBUNTU-CVE-2024-14027DEBIAN-CVE-2024-14027
Published 09-03-2026Last modified 23-05-2026

Vulnerability summary

CVE-2024-14027 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.22%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
SUSE-SU-2026:21834-1

Timeline

  1. 09-03-2026
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: fs/xattr: missing fdput() in fremovexattr error path In the Linux kernel, the fremovexattr() syscall calls fdget() to acquire a file reference but returns early without calling fdput() when strncpy_from_user() fails on the name argument. In multi-threaded processes where fdget() takes the slow path, this permanently leaks one file reference per call, pinning the struct file and associated kernel objects in memory. An unprivileged local user can exploit this to cause kernel memory exhaustion. The issue was inadvertently fixed by commit a71874379ec8 ("xattr: switch to CLASS(fd)").

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.21% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu143 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ c03185f4a23e7f89d84c9981091770e876e64480, < 9a3a2ae5efbbcaed37551218abed94e23c537157 | ≥ c3a5e3e872f3688ae0dc57bb78ca633921d96a91, < d151b94967c8247005435b63fc60f8f4baa320da | ≥ c3a5e3e872f3688ae0dc57bb78ca633921d96a91, < a71874379ec8c6e788a61d71b3ad014a8d9a5c08 | 8d5863cb33aa424fc27115ee945ad6b96ae2facb | ≥ 6.6.51, < 6.6.133 | ≥ 6.10.10, < 6.11 | 6.11
  • linux_kernel≥ 6.6.51, < 6.6.133 | ≥ 6.10.10, < 6.12.77
Debian1 product
  • linux< 6.12.85-1 | < 6.16.3-1

3 vendors · 146 products

References

8 links