pmdomain: core: Fix detach procedure for virtual devices in genpd
Published Jun 8, 2026
5.5
MEDIUMCVSS 3.1
EPSS 0.16%
Description
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().
Affected products
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- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
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- Version 4.18StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<4.18
- Version 5.10.259StatusunaffectedConstraints<=5.10.*
- Version 5.15.210StatusunaffectedConstraints<=5.15.*
- Version 6.1.176StatusunaffectedConstraints<=6.1.*
- Version 6.12.88StatusunaffectedConstraints<=6.12.*
- Version 6.18.30StatusunaffectedConstraints<=6.18.*
- Version 6.6.141StatusunaffectedConstraints<=6.6.*
- Version 7.0.7StatusunaffectedConstraints<=7.0.*
- Version 7.1StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
| |||||||||||||||||||||||||||||||||
| Linux | Linux | affected |
|
- ≥ 4.18 · < 5.10.259
- ≥ 5.11 · < 5.15.210
- ≥ 5.16 · < 6.1.176
- ≥ 6.2 · < 6.6.141
- ≥ 6.7 · < 6.12.88
- ≥ 6.13 · < 6.18.30
- ≥ 6.19 · < 7.0.7
- 7.1
- 7.1
No data.
Red Hat Enterprise Linux 10
kernel
Fix deferred
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Fix deferred
Red Hat Enterprise Linux 9
kernel-rt
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Jun–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.16% (0.00162) | 4.84th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.17% (0.00168) | 6.37th | v5 (v2026.06.15) |
| Jun 9, 2026 | 0.02% (0.00018) | 4.96th | v4 (v2025.03.14) |
References (13)
- https://access.redhat.com/security/cve/CVE-2026-46292 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2486428 Issue Tracking
- https://git.kernel.org/stable/c/26735dfdd8930d9ef1fa92e590a9bf77726efdf6 Patch
- https://git.kernel.org/stable/c/361518a26e4434e879db6ff43bf364795dcbfbff Patch
- https://git.kernel.org/stable/c/51a7dd9cbae9210335ce398642ecaaa52c939eb5 Patch
- https://git.kernel.org/stable/c/52e485ed0dcb5496864003ba9ffcef7d5b613f83 Patch
- https://git.kernel.org/stable/c/707cb5df3eab32ddc52979418f7ace62941e6381 Patch
- https://git.kernel.org/stable/c/8d44391a7f29e4601e8243f13498d0219bab2576 Patch
- https://git.kernel.org/stable/c/98b8104978474d381256a2b2fb0e7ca8e05a7bfa Patch
- https://git.kernel.org/stable/c/e8f8dad44f024a5c99e54a48ad5c943fa8e54319 Patch
- https://lore.kernel.org/linux-cve-announce/2026060857-CVE-2026-46292-92c0@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2026-46292
- https://www.cve.org/CVERecord?id=CVE-2026-46292
Change history (0)
No recorded changes yet.