CVE-2025-68797 (CNNVD-202601-2239)
中文标题:
Linux kernel 安全漏洞
英文标题:
char: applicom: fix NULL pointer dereference in ac_ioctl
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ac_ioctl函数中cmd为6时未验证IndexCard，可能导致空指针取消引用。
英文描述:
In the Linux kernel, the following vulnerability has been resolved: char: applicom: fix NULL pointer dereference in ac_ioctl Discovered by Atuin - Automated Vulnerability Discovery Engine. In ac_ioctl, the validation of IndexCard and the check for a valid RamIO pointer are skipped when cmd is 6. However, the function unconditionally executes readb(apbs[IndexCard].RamIO + VERS) at the end. If cmd is 6, IndexCard may reference a board that does not exist (where RamIO is NULL), leading to a NULL pointer dereference. Fix this by skipping the readb access when cmd is 6, as this command is a global information query and does not target a specific board context.
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 | - | < 0b8b353e09888bccee405e0dd6feafb60360f478 | - |
cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*
|
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-2025-68797 |
2026-01-14 02:22:04 | 2026-01-14 06:08:01 |
| NVD | nvd_CVE-2025-68797 |
2026-01-14 03:00:13 | 2026-01-14 06:14:35 |
| CNNVD | cnnvd_CNNVD-202601-2239 |
2026-01-15 01:52:30 | 2026-01-15 01:53:19 |
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-202601-2239
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 6 -> 1
- data_sources: ['cve'] -> ['cve', 'nvd']