CVE-2025-68780— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
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，该漏洞源于仅为在线运行队列设置free_cpus，可能导致CPU状态错误。
可能的 ATT&CK 技术 1 AI
T1496 · Resource Hijacking影响版本矩阵 14
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 9659e1eeee28f7025b6545934d644d19e9c6e603< 9019e399684e3cc68c4a3f050e268f74d69c1317 |
affected |
9659e1eeee28f7025b6545934d644d19e9c6e603< fb36846cbcc936954f2ad2bffdff13d16c0be08a |
affected | ||
9659e1eeee28f7025b6545934d644d19e9c6e603< 91e448e69aca4bb0ba2e998eb3e555644db7322b |
affected | ||
9659e1eeee28f7025b6545934d644d19e9c6e603< dbc61834b0412435df21c71410562d933e4eba49 |
affected | ||
9659e1eeee28f7025b6545934d644d19e9c6e603< 3ed049fbfb4d75b4e0b8ab54c934f485129d5dc8 |
affected | ||
9659e1eeee28f7025b6545934d644d19e9c6e603< 382748c05e58a9f1935f5a653c352422375566ea |
affected | ||
4.0 |
affected | ||
< 4.0 |
unaffected | ||
| … +6 条更多 | |||
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2025-68780 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
查看神龙十问 ↗
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
sched/deadline: only set free_cpus for online runqueues
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
sched/deadline: only set free_cpus for online runqueues
Commit 16b269436b72 ("sched/deadline: Modify cpudl::free_cpus
to reflect rd->online") introduced the cpudl_set/clear_freecpu
functions to allow the cpu_dl::free_cpus mask to be manipulated
by the deadline scheduler class rq_on/offline callbacks so the
mask would also reflect this state.
Commit 9659e1eeee28 ("sched/deadline: Remove cpu_active_mask
from cpudl_find()") removed the check of the cpu_active_mask to
save some processing on the premise that the cpudl::free_cpus
mask already reflected the runqueue online state.
Unfortunately, there are cases where it is possible for the
cpudl_clear function to set the free_cpus bit for a CPU when the
deadline runqueue is offline. When this occurs while a CPU is
connected to the default root domain the flag may retain the bad
state after the CPU has been unplugged. Later, a different CPU
that is transitioning through the default root domain may push a
deadline task to the powered down CPU when cpudl_find sees its
free_cpus bit is set. If this happens the task will not have the
opportunity to run.
One example is outlined here:
https://lore.kernel.org/lkml/20250110233010.2339521-1-opendmb@gmail.com
Another occurs when the last deadline task is migrated from a
CPU that has an offlined runqueue. The dequeue_task member of
the deadline scheduler class will eventually call cpudl_clear
and set the free_cpus bit for the CPU.
This commit modifies the cpudl_clear function to be aware of the
online state of the deadline runqueue so that the free_cpus mask
can be updated appropriately.
It is no longer necessary to manage the mask outside of the
cpudl_set/clear functions so the cpudl_set/clear_freecpu
functions are removed. In addition, since the free_cpus mask is
now only updated under the cpudl lock the code was changed to
use the non-atomic __cpumask functions.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
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，该漏洞源于仅为在线运行队列设置free_cpus，可能导致CPU状态错误。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2025-68780 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2025-68780 的情报信息
请登录查看更多情报信息。
同批安全公告 · Linux · 2026-01-13 · 共 93 条
| CVE-2025-68811 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-68794 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-68817 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-68775 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-71068 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-71095 | 9.1 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-68809 | 9.1 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-71093 | 9.1 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-68818 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-71072 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-68799 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-68803 | 8.0 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-68795 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-68793 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-68792 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-68801 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-71078 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-68805 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-68808 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-68810 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 93 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2025-68780
暂无评论