CVE-2025-40287
中文标题:
(暂无数据)
英文标题:
exfat: fix improper check of dentry.stream.valid_size
漏洞描述
中文描述:
(暂无数据)
英文描述:
In the Linux kernel, the following vulnerability has been resolved: exfat: fix improper check of dentry.stream.valid_size We found an infinite loop bug in the exFAT file system that can lead to a Denial-of-Service (DoS) condition. When a dentry in an exFAT filesystem is malformed, the following system calls — SYS_openat, SYS_ftruncate, and SYS_pwrite64 — can cause the kernel to hang. Root cause analysis shows that the size validation code in exfat_find() does not check whether dentry.stream.valid_size is negative. As a result, the system calls mentioned above can succeed and eventually trigger the DoS issue. This patch adds a check for negative dentry.stream.valid_size to prevent this vulnerability.
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 | - | < 6c627bcc1896ba62ec793d0c00da74f3c93ce3ad | - |
cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*
|
| Linux | Linux | 5.7 | - | - |
cpe:2.3:a:linux:linux:5.7:*:*:*:*:*:*:*
|
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
NOT_EXTRACTED
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-2025-40287 |
2025-12-21 02:11:28 | 2026-01-12 02:11:47 |
| NVD | nvd_CVE-2025-40287 |
2025-12-09 03:00:04 | 2026-01-12 02:27:47 |
版本与语言
安全公告
变更历史
查看详细变更
- affected_products_count: 4 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']