CVE-2025-68348 (CNNVD-202512-4654)
中文标题:
Linux kernel 安全漏洞
英文标题:
block: fix memory leak in __blkdev_issue_zero_pages
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，该漏洞源于信号检查顺序不当，可能导致内存泄漏。
英文描述:
In the Linux kernel, the following vulnerability has been resolved: block: fix memory leak in __blkdev_issue_zero_pages Move the fatal signal check before bio_alloc() to prevent a memory leak when BLKDEV_ZERO_KILLABLE is set and a fatal signal is pending. Previously, the bio was allocated before checking for a fatal signal. If a signal was pending, the code would break out of the loop without freeing or chaining the just-allocated bio, causing a memory leak. This matches the pattern already used in __blkdev_issue_write_zeroes() where the signal check precedes the allocation.
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 | - | < 453e4b0c84d0db1454ff0adf655d91179e6fca3a | - |
cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*
|
| Linux | Linux | 6.11 | - | - |
cpe:2.3:a:linux:linux:6.11:*:*:*:*:*:*:*
|
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-2025-68348 |
2025-12-25 02:03:31 | 2026-01-12 02:12:30 |
| NVD | nvd_CVE-2025-68348 |
2025-12-30 04:12:18 | 2026-01-12 02:28:13 |
| CNNVD | cnnvd_CNNVD-202512-4654 |
2026-01-11 06:15:03 | 2026-01-12 02:38:06 |
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-202512-4654
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 5 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']