# CVE-2026-89829: f2fs: fix to pass folio->index to f2fs_sanity_check_node_footer()

CVE-2026-89829 is fixed in linux on 1 platform by DEBIAN-CVE-2026-89829 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-89829
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 16, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-89829

## Description

In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to pass folio->index to f2fs_sanity_check_node_footer()  Otherwise in f2fs_sanity_check_node_footer(), it will check the same nid incorrectly.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-89829](https://patchblox.com/security/data/fix/linux/debian-cve-2026-89829.md) | Sep 23, 2026 |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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