CVE-2026-46292 | pmdomain: core: Fix detach procedure for virtual devices in genpd

In the Linux kernel, the following vulnerability has been resolved: pmdomain: core: Fix detach procedure for virtual devices in genpd If a device is attached to a PM domain through genpd_dev_pm_attach_by_id(), genpd calls pm_runtime_enable() for the corresponding virtual device that it registers. While this avoids boilerplate code in drivers, there is no corresponding call to pm_runtime_disable() in genpd_dev_pm_detach(). This means these virtual devices are typically detached from its genpd, while runtime PM remains enabled for them, which is not how things are designed to work. In worst cases it may lead to critical errors, like a NULL pointer dereference bug in genpd_runtime_suspend(), which was recently reported. For another case, we may end up keeping an unnecessary vote for a performance state for the device. To fix these problems, let's add this missing call to pm_runtime_disable() in genpd_dev_pm_detach().

公开: 2026-06-08 最后更新: 2026-07-08 分配方: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 来源: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

结论预警: CVE-2026-46292 综合评估为低风险(22.8/100):CVSS 技术影响为中级,利用概率偏低(EPSS 0.12%) 强制指令: 持续跟踪利用情报与 EPSS 变化,并适时复评优先级。

风险随态势动态变化;本站持续评估并同步更新本页展示内容。

CVE-2026-46292 的 EPSS(利用预测评分)

EPSS 日更估计相对被利用可能性;百分位表示该 CVE 在已评分漏洞中的相对排名(越高表示相对更严重)。

# 日期 旧 EPSS 分数 新 EPSS 分数 变化(新 − 旧)
1 2026-07-09 0.17% 0.12% -0.05%
2 2026-06-15 0.02% 0.17% +0.15%
3 2026-06-09 0.02%

完整 EPSS 历史 (共 3 条)

CVE-2026-46292 的 CVSS 指标

该 CVE 的 CVSS 指标。

底座分 版本 严重度 向量 可利用性 影响 分数来源
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 点击展开
攻击向量 (AV:L)
需要先拿到目标主机上的执行面,或依赖其他用户误操作/恶意操作来触发。
攻击复杂度 (AC:L)
前置条件清晰,成功路径稳定,不依赖罕见竞态或苛刻环境。
权限要求 (PR:L)
一般用户权限即可,不必是管理员或 root。
用户交互 (UI:N)
无需受害者点击链接、放行宏或安装软件,攻击链可自动走完。
作用域 (S:U)
破坏局限在脆弱组件原本的安全权限与信任域之内。
机密性影响 (C:N)
几乎谈不上实质性的敏感数据外泄。
完整性影响 (I:N)
对记录真实性与不可否认性的破坏可忽略。
可用性影响 (A:H)
可造成长时间中断、关键事务无法完成,或伴随数据损毁导致难以自愈。
1.8 3.6 [email protected]

CVE-2026-46292 的弱点枚举

CVE-2026-46292 的 GitHub 安全公告

GHSA-6pv2-qc8v-r267 · 严重度: medium — In the Linux kernel, the following vulnerability has been resolved: pmdomain: core: Fix detach...

CVE-2026-46292 的 OS 跟踪

vendor priority summary link
debian not yet assigned CVE-2026-46292 not yet assigned priority: Debian including 2 source packages (linux, linux-6.1), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. https://security-tracker.debian.org/tracker/CVE-2026-46292
redhat low https://access.redhat.com/security/cve/CVE-2026-46292
suse medium CVE-2026-46292 severity moderate: SUSE including 14 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 39 product×package rows across 8 product lines (SUSE Linux Enterprise Live Patching 12 SP5, SUSE Linux Enterprise Micro 5.0, … (8 product lines)): Known Not Affected 39. https://www.suse.com/security/cve/CVE-2026-46292/
ubuntu low CVE-2026-46292 low priority: Ubuntu including 162 source packages (linux, linux-allwinner-5.19, …), 1458 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): DNE 1051, ignored 201, released 88, needed 69, pending 26, not-affected 23. https://ubuntu.com/security/CVE-2026-46292

CVE-2026-46292 的影响软件 / 配置

厂商 产品 版本 原始 CPE
linux linux_kernel >= 4.18, < 5.10.259 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.11, < 5.15.210 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.16, < 6.1.176 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.2, < 6.6.141 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.7, < 6.12.88 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.13, < 6.18.30 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.19, < 7.0.7 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel 7.1 cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
linux linux_kernel 7.1 cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*

CVE-2026-46292 的参考链接

cvelogic Threat Intelligence