pmdomain: core: Fix detach procedure for virtual devices in genpd
Summary
| CVE | CVE-2026-46292 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-08 17:16:47 UTC |
| Updated | 2026-06-19 13:16:35 UTC |
| 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(). |
Risk And Classification
EPSS: 0.001770000 probability, percentile 0.073100000 (date 2026-06-22)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 3c095f32a92be4d07f3172a777dab1aacdb6a728 e8f8dad44f024a5c99e54a48ad5c943fa8e54319 git | Not specified |
| CNA | Linux | Linux | affected 3c095f32a92be4d07f3172a777dab1aacdb6a728 98b8104978474d381256a2b2fb0e7ca8e05a7bfa git | Not specified |
| CNA | Linux | Linux | affected 3c095f32a92be4d07f3172a777dab1aacdb6a728 52e485ed0dcb5496864003ba9ffcef7d5b613f83 git | Not specified |
| CNA | Linux | Linux | affected 3c095f32a92be4d07f3172a777dab1aacdb6a728 707cb5df3eab32ddc52979418f7ace62941e6381 git | Not specified |
| CNA | Linux | Linux | affected 3c095f32a92be4d07f3172a777dab1aacdb6a728 361518a26e4434e879db6ff43bf364795dcbfbff git | Not specified |
| CNA | Linux | Linux | affected 3c095f32a92be4d07f3172a777dab1aacdb6a728 51a7dd9cbae9210335ce398642ecaaa52c939eb5 git | Not specified |
| CNA | Linux | Linux | affected 3c095f32a92be4d07f3172a777dab1aacdb6a728 8d44391a7f29e4601e8243f13498d0219bab2576 git | Not specified |
| CNA | Linux | Linux | affected 3c095f32a92be4d07f3172a777dab1aacdb6a728 26735dfdd8930d9ef1fa92e590a9bf77726efdf6 git | Not specified |
| CNA | Linux | Linux | affected 4.18 | Not specified |
| CNA | Linux | Linux | unaffected 4.18 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.259 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.210 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.176 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.141 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.88 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.30 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.7 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/51a7dd9cbae9210335ce398642ecaaa52c939eb5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/707cb5df3eab32ddc52979418f7ace62941e6381 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/361518a26e4434e879db6ff43bf364795dcbfbff | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e8f8dad44f024a5c99e54a48ad5c943fa8e54319 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/52e485ed0dcb5496864003ba9ffcef7d5b613f83 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/8d44391a7f29e4601e8243f13498d0219bab2576 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/98b8104978474d381256a2b2fb0e7ca8e05a7bfa | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/26735dfdd8930d9ef1fa92e590a9bf77726efdf6 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.