CVEvulnerability

CVE-2024-47712

5.5 MEDIUM Published 2024-10-21 Modified 2026-08-04 Official page ↗
Status
Modified
Published
2024-10-21
Last modified
2026-08-04
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
8.3 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476

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.

Affected configurations

• linux linux kernel (>= 5.4.273 < 5.5) • linux linux kernel (>= 5.10.214 < 5.10.227) • linux linux kernel (>= 5.15.153 < 5.15.168) • linux linux kernel (>= 6.1.83 < 6.1.113) • linux linux kernel (>= 6.6.23 < 6.6.54) • linux linux kernel (>= 6.7.11 < 6.8) • linux linux kernel (>= 6.8.2 < 6.9) • linux linux kernel (> 6.9 < 6.10.13) • linux linux kernel (>= 6.11 < 6.11.2)

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References