VulnerabilityPublished 8 Jun 2026Updated 6 Nov 2026

CVE-2026-46292: Linux kernel · pmdomain: core: Fix detach procedure for virtual devices in genpd

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in e8f8dad44f024a5c99e54a48ad5c943fa8e54319 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:49 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in e8f8dad44f024a5c99e54a48ad5c943fa8e54319, 361518a26e4434e879db6ff43bf364795dcbfbff, 26735dfdd8930d9ef1fa92e590a9bf77726efdf6 +5

Exploitation evidence

Disclosed: evidence found.
CVE published 8 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 3c095f32a92be4d07f3172a777dab1aacdb6a728, < e8f8dad44f024a5c99e54a48ad5c943fa8e54319	Fixed in e8f8dad44f024a5c99e54a48ad5c943fa8e54319
LinuxLinux	Affected ≥ 3c095f32a92be4d07f3172a777dab1aacdb6a728, < 361518a26e4434e879db6ff43bf364795dcbfbff	Fixed in 361518a26e4434e879db6ff43bf364795dcbfbff
LinuxLinux	Affected ≥ 3c095f32a92be4d07f3172a777dab1aacdb6a728, < 26735dfdd8930d9ef1fa92e590a9bf77726efdf6	Fixed in 26735dfdd8930d9ef1fa92e590a9bf77726efdf6
LinuxLinux	Affected ≥ 3c095f32a92be4d07f3172a777dab1aacdb6a728, < 707cb5df3eab32ddc52979418f7ace62941e6381	Fixed in 707cb5df3eab32ddc52979418f7ace62941e6381
LinuxLinux	Affected ≥ 3c095f32a92be4d07f3172a777dab1aacdb6a728, < 98b8104978474d381256a2b2fb0e7ca8e05a7bfa	Fixed in 98b8104978474d381256a2b2fb0e7ca8e05a7bfa
LinuxLinux	Affected ≥ 3c095f32a92be4d07f3172a777dab1aacdb6a728, < 52e485ed0dcb5496864003ba9ffcef7d5b613f83	Fixed in 52e485ed0dcb5496864003ba9ffcef7d5b613f83

Description

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().

References

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