Filesystem Vulnerability in Linux Kernel's ext4 Product by Linux Foundation

CVE-2023-53835

What is CVE-2023-53835?

A vulnerability has been identified in the Linux kernel's ext4 filesystem. When remounting a read-only filesystem to read/write, the SB_RDONLY flag may be cleared prematurely. If this occurs before the quota system is initialized and multiple processes attempt to create directories, it can lead to system warnings and potential inconsistencies in filesystem operations. This situation can be exacerbated when quota management is not appropriately handled during the remount process, potentially affecting system stability and data integrity.

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