Self-Deadlock Vulnerability in Linux Kernel ext4 File System
CVE-2023-54311

Currently unrated

Key Information:

Vendor: Linux
Status: Linux
Vendor: CVE Published:; 30 December 2025

What is CVE-2023-54311?

A self-deadlock issue exists in the Linux kernel's ext4 file system when operating in no journal mode. The vulnerability occurs during the conversion of inline directories, specifically in the function ext4_finish_convert_inline_dir(). This function can lead to a deadlock scenario when it attempts to call ext4_handle_dirty_dirblock() while holding the directory lock. A similar issue is present in the ext4_incvert_inline_data_nolock() function for data files. Utilizing specific commands, this problem can be replicated, which could potentially disrupt file system operations.

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