CVE-2025-40063 (CNNVD-202510-3857)
中文标题:
Linux kernel 安全漏洞
英文标题:
crypto: comp - Use same definition of context alloc and free ops
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alloc_ctx和free_ctx操作定义不一致，可能导致结构布局随机化问题。
英文描述:
In the Linux kernel, the following vulnerability has been resolved: crypto: comp - Use same definition of context alloc and free ops In commit 42d9f6c77479 ("crypto: acomp - Move scomp stream allocation code into acomp"), the crypto_acomp_streams struct was made to rely on having the alloc_ctx and free_ctx operations defined in the same order as the scomp_alg struct. But in that same commit, the alloc_ctx and free_ctx members of scomp_alg may be randomized by structure layout randomization, since they are contained in a pure ops structure (containing only function pointers). If the pointers within scomp_alg are randomized, but those in crypto_acomp_streams are not, then the order may no longer match. This fixes the problem by removing the union from scomp_alg so that both crypto_acomp_streams and scomp_alg will share the same definition of alloc_ctx and free_ctx, ensuring they will always have the same layout.
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 | - | < 779d3b6f2d32c5f1da6163e959abe1e1ffe2945b | - |
cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*
|
| Linux | Linux | 6.16 | - | - |
cpe:2.3:a:linux:linux:6.16:*:*:*:*:*:*:*
|
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-2025-40063 |
2025-11-11 15:23:20 | 2025-11-11 07:40:30 |
| NVD | nvd_CVE-2025-40063 |
2025-11-11 15:01:07 | 2025-11-11 07:48:19 |
| CNNVD | cnnvd_CNNVD-202510-3857 |
2025-11-11 15:12:59 | 2025-11-11 08:00:20 |
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-202510-3857
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 3 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']