CVE-2025-68794 (CNNVD-202601-2242)
中文标题:
Linux kernel 安全漏洞
英文标题:
iomap: adjust read range correctly for non-block-aligned positions
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iomap_adjust_read_range函数对非块对齐位置计算错误，可能导致越界读取。
英文描述:
In the Linux kernel, the following vulnerability has been resolved: iomap: adjust read range correctly for non-block-aligned positions iomap_adjust_read_range() assumes that the position and length passed in are block-aligned. This is not always the case however, as shown in the syzbot generated case for erofs. This causes too many bytes to be skipped for uptodate blocks, which results in returning the incorrect position and length to read in. If all the blocks are uptodate, this underflows length and returns a position beyond the folio. Fix the calculation to also take into account the block offset when calculating how many bytes can be skipped for uptodate blocks.
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 | - | < 82b60ffbb532d919959702768dca04c3c0500ae5 | - |
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-2025-68794 |
2026-01-14 02:22:02 | 2026-01-14 06:08:00 |
| NVD | nvd_CVE-2025-68794 |
2026-01-14 03:00:13 | 2026-01-14 06:14:35 |
| CNNVD | cnnvd_CNNVD-202601-2242 |
2026-01-15 01:52:31 | 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-202601-2242
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 5 -> 1
- data_sources: ['cve'] -> ['cve', 'nvd']