CVE-2024-39469

HIGH
Published Jun 25, 2024 Modified Nov 3, 2025

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.

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CVSS v3.1 Score

7.1
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/11a2edb70356a2202dcb7c9c189c8356ab4752cd https://git.kernel.org/stable/c/129dcd3e7d036218db3f59c82d82004b9539ed82 https://git.kernel.org/stable/c/2ac8a2fe22bdde9eecce2a42cf5cab79333fb428 https://git.kernel.org/stable/c/405b71f1251e5ae865f53bd27c45114e6c83bee3 https://git.kernel.org/stable/c/59f14875a96ef93f05b82ad3c980605f2cb444b5 https://git.kernel.org/stable/c/7373a51e7998b508af7136530f3a997b286ce81c https://git.kernel.org/stable/c/c77ad608df6c091fe64ecb91f41ef7cb465587f1 https://git.kernel.org/stable/c/d18b05eda7fa77f02114f15b02c009f28ee42346 https://git.kernel.org/stable/c/11a2edb70356a2202dcb7c9c189c8356ab4752cd https://git.kernel.org/stable/c/129dcd3e7d036218db3f59c82d82004b9539ed82 https://git.kernel.org/stable/c/2ac8a2fe22bdde9eecce2a42cf5cab79333fb428 https://git.kernel.org/stable/c/405b71f1251e5ae865f53bd27c45114e6c83bee3 https://git.kernel.org/stable/c/59f14875a96ef93f05b82ad3c980605f2cb444b5 https://git.kernel.org/stable/c/7373a51e7998b508af7136530f3a997b286ce81c https://git.kernel.org/stable/c/c77ad608df6c091fe64ecb91f41ef7cb465587f1 https://git.kernel.org/stable/c/d18b05eda7fa77f02114f15b02c009f28ee42346

Frequently Asked Questions

What is CVE-2024-39469? +
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. It has a CVSS v3.1 base score of 7.1 (HIGH).
How severe is CVE-2024-39469? +
CVE-2024-39469 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-39469? +
CVE-2024-39469 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-39469? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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