CVE-2024-39469

CVE Details

Release Date:	2024-06-25
Impact:	Low	What is this?

Description

In the Linux kernel, the following vulnerability has been resolved:\nnilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors\nThe error handling in nilfs_empty_dir() when a directory folio/page read\nfails is incorrect, as in the old ext2 implementation, and if the\nfolio/page cannot be read or nilfs_check_folio() fails, it will falsely\ndetermine the directory as empty and corrupt the file system.\nIn addition, since nilfs_empty_dir() does not immediately return on a\nfailed folio/page read, but continues to loop, this can cause a long loop\nwith I/O if i_size of the directory's inode is also corrupted, causing the\nlog writer thread to wait and hang, as reported by syzbot.\nFix these issues by making nilfs_empty_dir() immediately return a false\nvalue (0) if it fails to get a directory folio/page.

See more information about CVE-2024-39469 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	5.5
Vector String:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Version:	3.1
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

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