CVE-2023-54311: ext4: fix deadlock when converting an inline directory in nojournal mode

Deferred
AliasesUBUNTU-CVE-2023-54311DEBIAN-CVE-2023-54311
Published 30-12-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-54311 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.9% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.20%
0%100%
Low · 0.00 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 5 · Related 5
SUSE-SU-2026:0263-1SUSE-SU-2026:0317-1SUSE-SU-2026:0411-1SUSE-SU-2026:0473-1SUSE-SU-2026:0617-1

Timeline

  1. 30-12-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix deadlock when converting an inline directory in nojournal mode In no journal mode, ext4_finish_convert_inline_dir() can self-deadlock by calling ext4_handle_dirty_dirblock() when it already has taken the directory lock. There is a similar self-deadlock in ext4_incvert_inline_data_nolock() for data files which we'll fix at the same time. A simple reproducer demonstrating the problem: mke2fs -Fq -t ext2 -O inline_data -b 4k /dev/vdc 64 mount -t ext4 -o dirsync /dev/vdc /vdc cd /vdc mkdir file0 cd file0 touch file0 touch file1 attr -s BurnSpaceInEA -V abcde . touch supercalifragilisticexpialidocious

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.20% 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

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Ubuntu125 products
  • linuxAll versions (No fix recorded) | < 5.4.0-162.179 | < 5.15.0-83.92
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1109.118 | < 5.15.0-1044.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.37-1 | < 6.3.7-1
Linux1 product
  • linux≥ 3c47d54170b6a678875566b1b8d6dcf57904e49b, < b4fa4768c9acff77245d672d855d2c88294850b1 | ≥ 3c47d54170b6a678875566b1b8d6dcf57904e49b, < 5f8b55136ad787aed2c184f7cb3e93772ae637a3 | ≥ 3c47d54170b6a678875566b1b8d6dcf57904e49b, < 640c8c365999c6f23447ac766437236ad88317c5 | ≥ 3c47d54170b6a678875566b1b8d6dcf57904e49b, < 665cc3ba50330049524c1d275bc840a8f28dde73 | ≥ 3c47d54170b6a678875566b1b8d6dcf57904e49b, < 0b1c4357bb21d9770451a1bdb8d419ea10bada88 | ≥ 3c47d54170b6a678875566b1b8d6dcf57904e49b, < 804de0c72cd473e186ca4e1f6287d45431b14e5a | ≥ 3c47d54170b6a678875566b1b8d6dcf57904e49b, < f4ce24f54d9cca4f09a395f3eecce20d6bec4663 | 3.8

3 vendors · 127 products

References

11 links
Show all 11 references