CVE-2025-40333
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.
Affected versions
Linux kernel versions
3.8
and later are affected. Fixed in
6.6.117,
6.12.58,
6.17.8,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-40333 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/23361bd54966b437e1ed3eb1a704572f4b279e58
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PatchKernel patch commithttps://git.kernel.org/stable/c/765f8816d3959ef1f3f7f85e2af748594d091f40
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PatchKernel patch commithttps://git.kernel.org/stable/c/c0b9951bb2668d67eb4817bb23fc109abc08c075
Frequently asked questions
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What is CVE-2025-40333?
CVE-2025-40333 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.8 onward and has been patched in 6.6.117, 6.12.58, 6.17.8 and others. CVE-2025-40333 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2025-40333?
Yes — CVE-2025-40333 has been patched. Fixed versions include 6.6.117, 6.12.58, 6.17.8 and others. If you are running Linux kernel 3.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-40333 actively exploited?
No — CVE-2025-40333 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.