Bug 2422826 (CVE-2025-68315)

Summary: CVE-2025-68315 kernel: f2fs: fix to detect potential corrupted nid in free_nid_list
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
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OS: Linux   
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Description OSIDB Bzimport 2025-12-16 16:04:32 UTC 
In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to detect potential corrupted nid in free_nid_list

As reported, on-disk footer.ino and footer.nid is the same and
out-of-range, let's add sanity check on f2fs_alloc_nid() to detect
any potential corruption in free_nid_list.
Comment 1 Alexander B 2025-12-16 18:12:45 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025121655-CVE-2025-68315-158d@gregkh/T