CVE-2023-52444
CVSS 3.1 Score 7.8 of 10 (high)
Details
Summary
CVE-2023-52444 is a vulnerability affecting the Linux kernel's f2fs filesystem. The issue lies in the 'f2fs_rename()' function, where during a cross-directory rename operation, the '..' link is not correctly updated, potentially leading to dirent corruption. The vulnerability was discovered when attempting to rename a file from 'dir/foo' to 'bar', resulting in an incorrect inode number for the '..' link. This could lead to further file system inconsistencies or corruption during fsck checks. The issue has been resolved by properly updating the '..' link using 'f2fs_set_link()'.
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