CVE-2025-71111 (CNNVD-202601-2444)
中文标题:
Linux kernel 安全漏洞
英文标题:
hwmon: (w83791d) Convert macros to functions to avoid TOCTOU
漏洞描述
中文描述:
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于宏多次求值导致TOCTOU竞争条件，可能导致除零错误。
英文描述:
In the Linux kernel, the following vulnerability has been resolved: hwmon: (w83791d) Convert macros to functions to avoid TOCTOU The macro FAN_FROM_REG evaluates its arguments multiple times. When used in lockless contexts involving shared driver data, this leads to Time-of-Check to Time-of-Use (TOCTOU) race conditions, potentially causing divide-by-zero errors. Convert the macro to a static function. This guarantees that arguments are evaluated only once (pass-by-value), preventing the race conditions. Additionally, in store_fan_div, move the calculation of the minimum limit inside the update lock. This ensures that the read-modify-write sequence operates on consistent data. Adhere to the principle of minimal changes by only converting macros that evaluate arguments multiple times and are used in lockless contexts.
CWE类型:
标签:
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| Linux | Linux | - | < f2b579a0c37c0df19603d719894a942a295f634a | - |
cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*
|
| Linux | Linux | 2.6.18 | - | - |
cpe:2.3:a:linux:linux:2.6.18:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
CVSS评分详情
时间信息
利用信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2025-71111 |
2026-01-15 02:17:38 | 2026-01-15 06:00:15 |
| NVD | nvd_CVE-2025-71111 |
2026-01-15 03:00:07 | 2026-01-15 06:00:27 |
| CNNVD | cnnvd_CNNVD-202601-2444 |
2026-01-16 02:47:02 | 2026-01-16 02:48:26 |
版本与语言
安全公告
变更历史
查看详细变更
- vulnerability_type: 未提取 -> 其他
- severity: SeverityLevel.MEDIUM -> SeverityLevel.UNKNOWN
- cvss_score: 未提取 -> 0.0
- cnnvd_id: 未提取 -> CNNVD-202601-2444
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 6 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']