CVE-2025-40305
中文标题:
（暂无数据）
英文标题:
9p/trans_fd: p9_fd_request: kick rx thread if EPOLLIN
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: 9p/trans_fd: p9_fd_request: kick rx thread if EPOLLIN p9_read_work() doesn't set Rworksched and doesn't do schedule_work(m->rq) if list_empty(&m->req_list). However, if the pipe is full, we need to read more data and this used to work prior to commit aaec5a95d59615 ("pipe_read: don't wake up the writer if the pipe is still full"). p9_read_work() does p9_fd_read() -> ... -> anon_pipe_read() which (before the commit above) triggered the unnecessary wakeup. This wakeup calls p9_pollwake() which kicks p9_poll_workfn() -> p9_poll_mux(), p9_poll_mux() will notice EPOLLIN and schedule_work(&m->rq). This no longer happens after the optimization above, change p9_fd_request() to use p9_poll_mux() instead of only checking for EPOLLOUT.
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 | - | < 242531004d7de8c159f9bfadebe33fe8060b1046 | - |
cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*
|
| Linux | Linux | 6.14 | - | - |
cpe:2.3:a:linux:linux:6.14:*:*:*:*:*:*:*
|
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-2025-40305 |
2026-01-04 02:04:25 | 2026-01-12 02:11:47 |
| NVD | nvd_CVE-2025-40305 |
2026-01-03 03:00:09 | 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: 3 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']