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Unrated severityNVD Advisory· Published Jun 25, 2024· Updated Nov 3, 2025

nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors

CVE-2024-39469

Description

In the Linux kernel, the following vulnerability has been resolved:

nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors

The error handling in nilfs_empty_dir() when a directory folio/page read fails is incorrect, as in the old ext2 implementation, and if the folio/page cannot be read or nilfs_check_folio() fails, it will falsely determine the directory as empty and corrupt the file system.

In addition, since nilfs_empty_dir() does not immediately return on a failed folio/page read, but continues to loop, this can cause a long loop with I/O if i_size of the directory's inode is also corrupted, causing the log writer thread to wait and hang, as reported by syzbot.

Fix these issues by making nilfs_empty_dir() immediately return a false value (0) if it fails to get a directory folio/page.

Affected products

95

Patches

8
129dcd3e7d03
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
11a2edb70356
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
c77ad608df6c
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
405b71f1251e
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
59f14875a96e
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
d18b05eda7fa
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
7373a51e7998
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
2ac8a2fe22bd
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit

Vulnerability mechanics

Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

8

News mentions

0

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