CVE-2023-54311: Linux

EPSS: 0.2% chance of exploitation in the next 30 days.

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

Affected products

• Linux Linux: from 3.8, before 5.4.243 (fixed in 5.4.243); from 5.5, before 5.10.180 (fixed in 5.10.180); from 5.11, before 5.15.112 (fixed in 5.15.112); from 5.16, before 6.1.29 (fixed in 6.1.29); from 6.2, before 6.2.16 (fixed in 6.2.16); from 6.3, before 6.3.3 (fixed in 6.3.3)

Published 2025-12-30. Last modified 2026-06-17.