CVE-2025-40333
Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-12-09

Last updated on: 2025-12-09

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix infinite loop in __insert_extent_tree() When we get wrong extent info data, and look up extent_node in rb tree, it will cause infinite loop (CONFIG_F2FS_CHECK_FS=n). Avoiding this by return NULL and print some kernel messages in that case.

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Meta Information

Published
2025-12-09
Last Modified
2025-12-09
Generated
2026-07-06
AI Q&A
2025-12-09
EPSS Evaluated
2026-07-05
NVD
CVE-2025-40333

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is an infinite loop issue in the Linux kernel's f2fs filesystem code, specifically in the __insert_extent_tree() function. When incorrect extent information is encountered and the system looks up an extent_node in the red-black tree, it can cause the kernel to enter an infinite loop if the CONFIG_F2FS_CHECK_FS option is disabled. The fix involves returning NULL and printing kernel messages to avoid the infinite loop.

Impact Analysis

This vulnerability can cause the Linux kernel to hang or become unresponsive due to an infinite loop when handling corrupted extent information in the f2fs filesystem. This can lead to system instability or denial of service conditions.

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