CVE-2023-54311

Linux Kernel 3.8.0-6.3.2 DoS via Inline Directory Conversion Deadlock

Title source: llm
STIX 2.1

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

Scores

EPSS 0.0018
EPSS Percentile 7.3%

Details

Status published
Products (22)
linux/Kernel 3.8.0 - 5.4.243linux
linux/Kernel 5.11.0 - 5.15.112linux
linux/Kernel 5.16.0 - 6.1.29linux
linux/Kernel 5.5.0 - 5.10.180linux
linux/Kernel 6.2.0 - 6.2.16linux
linux/Kernel 6.3.0 - 6.3.3linux
Linux/Linux < 3.8
Linux/Linux 3.8
Linux/Linux 3c47d54170b6a678875566b1b8d6dcf57904e49b - 0b1c4357bb21d9770451a1bdb8d419ea10bada88
Linux/Linux 3c47d54170b6a678875566b1b8d6dcf57904e49b - 5f8b55136ad787aed2c184f7cb3e93772ae637a3
... and 12 more
Published Dec 30, 2025
Tracked Since Feb 18, 2026