CVE-2026-23186— 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，该漏洞源于通知回调在锁内注销设备，可能导致死锁。
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一、 漏洞 CVE-2026-23186 基础信息
漏洞信息
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Vulnerability Title
hwmon: (acpi_power_meter) Fix deadlocks related to acpi_power_meter_notify()
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
hwmon: (acpi_power_meter) Fix deadlocks related to acpi_power_meter_notify()
The acpi_power_meter driver's .notify() callback function,
acpi_power_meter_notify(), calls hwmon_device_unregister() under a lock
that is also acquired by callbacks in sysfs attributes of the device
being unregistered which is prone to deadlocks between sysfs access and
device removal.
Address this by moving the hwmon device removal in
acpi_power_meter_notify() outside the lock in question, but notice
that doing it alone is not sufficient because two concurrent
METER_NOTIFY_CONFIG notifications may be attempting to remove the
same device at the same time. To prevent that from happening, add a
new lock serializing the execution of the switch () statement in
acpi_power_meter_notify(). For simplicity, it is a static mutex
which should not be a problem from the performance perspective.
The new lock also allows the hwmon_device_register_with_info()
in acpi_power_meter_notify() to be called outside the inner lock
because it prevents the other notifications handled by that function
from manipulating the "resource" object while the hwmon device based
on it is being registered. The sending of ACPI netlink messages from
acpi_power_meter_notify() is serialized by the new lock too which
generally helps to ensure that the order of handling firmware
notifications is the same as the order of sending netlink messages
related to them.
In addition, notice that hwmon_device_register_with_info() may fail
in which case resource->hwmon_dev will become an error pointer,
so add checks to avoid attempting to unregister the hwmon device
pointer to by it in that case to acpi_power_meter_notify() and
acpi_power_meter_remove().
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，该漏洞源于通知回调在锁内注销设备，可能导致死锁。
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-2026-23186 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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同批安全公告 · Linux · 2026-02-14 · 共 108 条
| CVE-2025-71202 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23193 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23172 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23209 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23169 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23171 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-71221 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23178 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23184 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23185 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23191 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23192 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23198 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-71204 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23139 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23148 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23136 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23161 | 7.3 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-71201 | 7.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23204 | 7.1 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 108 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-23186
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