CVE-2024-47712

MEDIUM

Linux Kernel - NULL Pointer Dereference in wilc_parse_join_bss_param

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 5.5
EPSS 0.0023
EPSS Percentile 13.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (28)
Linux/Linux < 6.9
Linux/Linux 205c50306acf58a335eb19fa84e40140f4fe814f - 2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5
Linux/Linux 205c50306acf58a335eb19fa84e40140f4fe814f - 6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8
Linux/Linux 205c50306acf58a335eb19fa84e40140f4fe814f - 79510414a7626317f13cc9073244ab7a8deb3192
Linux/Linux 4bfd20d5f5c62b5495d6c0016ee6933bd3add7ce - 84398204c5df5aaf89453056cf0647cda9664d2b
Linux/Linux 5.10.214 - 5.10.227
Linux/Linux 5.10.227 - 5.10.*
Linux/Linux 5.15.153 - 5.15.168
Linux/Linux 5.15.168 - 5.15.*
Linux/Linux 5.4.273 - 5.4.285
... and 18 more
Published Oct 21, 2024
Tracked Since Feb 18, 2026