CVE-2025-38733 (CNNVD-202509-783)
中文标题:
Linux kernel 安全漏洞
英文标题:
s390/mm: Do not map lowcore with identity mapping
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s390/mm中低核心映射不当。
英文描述:
In the Linux kernel, the following vulnerability has been resolved: s390/mm: Do not map lowcore with identity mapping Since the identity mapping is pinned to address zero the lowcore is always also mapped to address zero, this happens regardless of the relocate_lowcore command line option. If the option is specified the lowcore is mapped twice, instead of only once. This means that NULL pointer accesses will succeed instead of causing an exception (low address protection still applies, but covers only parts). To fix this never map the first two pages of physical memory with the identity mapping.
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 | 0b99d0e17d6a73a0526f92bc6b54b2b95e67a31d | - | - |
cpe:2.3:a:linux:linux:0b99d0e17d6a73a0526f92bc6b54b2b95e67a31d:*:*:*:*:*:*:*
|
| Linux | Linux | 6.11 | - | - |
cpe:2.3:a:linux:linux:6.11:*:*:*:*:*:*:*
|
| linux | linux_kernel | * | - | - |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
| linux | linux_kernel | 6.11 | - | - |
cpe:2.3:o:linux:linux_kernel:6.11:-:*:*:*:*:*:*
|
| linux | linux_kernel | 6.17 | - | - |
cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*
|
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-2025-38733 |
2025-11-11 15:23:18 | 2025-11-11 07:40:28 |
| NVD | nvd_CVE-2025-38733 |
2025-11-11 15:01:01 | 2025-11-11 07:48:17 |
| CNNVD | cnnvd_CNNVD-202509-783 |
2025-11-11 15:12:56 | 2025-11-11 08:00:15 |
版本与语言
安全公告
变更历史
查看详细变更
- affected_products_count: 2 -> 5
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-202509-783
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- data_sources: ['cve'] -> ['cve', 'nvd']