Intel

CVE-2026-46292

Linux kernel (GCP) vulnerabilities

mediumEPSS 0.1%

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().

Source: UBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNUBUNTU_USNBSIBSI_CSAFNVDCVEORGMSRCCVELISTV5

Metrics

Severity
medium
Priority score
231.31
KEV status
—
Exploit maturity
no public PoC known
XIEM Effective CVSS
5.5
Source: nvd-v3
CVSS v3
5.5
CVSS v4
—
EPSS percentile
2.3 %
Low — this CVE sits in the lower 10% of all CVEs scored today.
EPSS score
0.1 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-09-07 09:05 UTC
CWE
—

Reanalysis & status changes

Chronological NVD audit events for this CVE — reanalyses, CVSS updates, CPE diffs.

  1. CVE Translated2026-07-23 08:10 UTC· nvd@nist.gov
    • Translation: Title: Linux, Description: En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: pmdomain: core: Soluciona el procedimiento de desvinculación para dispositivos virtuales en genpd Si un dispositivo se adjunta a un dominio de PM a través de genpd_dev_pm_attach_by_id(), genpd llama a pm_runtime_enable() para el dispositivo virtual correspondiente que registra. Si bien esto evita código repetitivo en los controladores, no hay una llamada correspondiente a pm_runtime_disable() en genpd_dev_pm_detach(). Esto significa que estos dispositivos virtuales suelen desvincularse de su genpd, mientras que el PM en tiempo de ejecución permanece habilitado para ellos, lo cual no es como las cosas están diseñadas para funcionar. En los peores casos puede llevar a errores críticos, como un error de desreferencia de puntero NULL en genpd_runtime_suspend(), el cual fue reportado recientemente. Para otro caso, podemos terminar manteniendo un voto innecesario para un estado de rendimiento para el dispositivo. Para solucionar estos problemas, agreguemos esta llamada faltante a pm_runtime_disable() en genpd_dev_pm_detach().
  2. CVE Modified2026-06-19 13:16 UTC· 416baaa9-dc9f-4396-8d5f-8c081fb06d67
    • Reference: https://git.kernel.org/stable/c/52e485ed0dcb5496864003ba9ffcef7d5b613f83
    • Reference: https://git.kernel.org/stable/c/98b8104978474d381256a2b2fb0e7ca8e05a7bfa
    • Reference: https://git.kernel.org/stable/c/e8f8dad44f024a5c99e54a48ad5c943fa8e54319
    • Affected: Linux, Linux → Linux, Linux
  3. New CVE Received2026-06-08 17:16 UTC· 416baaa9-dc9f-4396-8d5f-8c081fb06d67
    • 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().
    • Reference: https://git.kernel.org/stable/c/26735dfdd8930d9ef1fa92e590a9bf77726efdf6
    • Reference: https://git.kernel.org/stable/c/361518a26e4434e879db6ff43bf364795dcbfbff
    • Reference: https://git.kernel.org/stable/c/51a7dd9cbae9210335ce398642ecaaa52c939eb5

Affected operating systems

  • linux

    redhat / enterprise_linux10.0

  • linux

    redhat / enterprise_linux7.0

  • linux

    redhat / enterprise_linux8.0

  • linux

    redhat / enterprise_linux9.0

  • linux

    ubuntu / linux-aws-6.8jammy

  • linux

    ubuntu / linux-azureresolute

  • linux

    ubuntu / linux-azuretrusty

  • linux

    ubuntu / linux-azurexenial

  • linux

    ubuntu / linux-azure-4.15bionic

  • linux

    ubuntu / linux-azure-5.4bionic

  • linux

    ubuntu / linux-azure-fdenoble

  • linux

    ubuntu / linux-azure-fderesolute

  • linux

    ubuntu / linux-azure-fde-6.8jammy

  • linux

    ubuntu / linux-azure-fipsbionic

  • linux

    ubuntu / linux-azure-fipsfocal

  • linux

    ubuntu / linux-azure-fipsnoble

  • linux

    ubuntu / linux-fipsjammy

  • linux

    ubuntu / linux-gcp-7.0noble

  • linux

    ubuntu / linux-gkejammy

  • linux

    ubuntu / linux-nvidia-tegranoble

  • linux

    ubuntu / linux-raspinoble

  • linux

    ubuntu / linux-raspi-realtimenoble

  • linux

    linux / linux_kernel2.6.12

  • linux

    linux / linux_kernel2.6.15

References & sources

Linked CVEs

Show 1392 more CVEs
IDCVE-2026-46292
Linux kernel (GCP) vulnerabilities — CVE-2026-46292 | NEOSEC Intel