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CVE-2026-90281

Unknown

Last modified

CVE-2026-90281 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: phy: qcom: snps-femto-v2: Fix possible NULL-deref on early runtime suspend Runtime PM must be enabled before creating the PHY, since phy_create() only enables runtime PM on the PHY device if it is already enabled on this parent device. However, the runtime PM callbacks dereference the hsphy instance, which is not yet ready, leaving a window where a suspend callback may trigger a NULL pointer dereference. Take a runtime PM usage reference with pm_runtime_get_noresume() before enabling runtime PM and release it once the PHY has been created, so that no runtime suspend can run before the PHY is ready.

Description

In the Linux kernel, the following vulnerability has been resolved: phy: qcom: snps-femto-v2: Fix possible NULL-deref on early runtime suspend Runtime PM must be enabled before creating the PHY, since phy_create() only enables runtime PM on the PHY device if it is already enabled on this parent device. However, the runtime PM callbacks dereference the hsphy instance, which is not yet ready, leaving a window where a suspend callback may trigger a NULL pointer dereference. Take a runtime PM usage reference with pm_runtime_get_noresume() before enabling runtime PM and release it once the PHY has been created, so that no runtime suspend can run before the PHY is ready. This also prevents a short window where an unnecessary runtime suspend can occur. Use the devres-managed version to ensure PM runtime is symmetrically disabled during driver removal for proper cleanup.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 0d75f508a9d56133a2834215959cde4605c804d1, < 0c5c08c94dd64c05679970d4eed8b06d36a889a8; >= 0d75f508a9d56133a2834215959cde4605c804d1, < 1027b1d4e29756dfbf74ef8743456a1efa3679f0; >= 0d75f508a9d56133a2834215959cde4605c804d1, < 34293f5a8982a06c40af69c8c7c856b5837ac652; >= 0d75f508a9d56133a2834215959cde4605c804d1, < 3ddf41938fee3d148a170c31e76b0515a522ef7e; >= 0d75f508a9d56133a2834215959cde4605c804d1, < 82cb1aedf4bdb279cf8853fe8f39bec4e6cffa0a; >= 0d75f508a9d56133a2834215959cde4605c804d1, < 61749681e4a3629ec20b04ba2443b91016af3d2f; >= 0d75f508a9d56133a2834215959cde4605c804d1, < b85bbec72fa813b60e093c6bb36ae232b9b0eb5e; >= 0d75f508a9d56133a2834215959cde4605c804d1, < c271a6926ea7d3c9566b033d63fd4e8c488dc860
LinuxLinux5.9

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-90281?
In the Linux kernel, the following vulnerability has been resolved: phy: qcom: snps-femto-v2: Fix possible NULL-deref on early runtime suspend Runtime PM must be enabled before creating the PHY, since phy_create() only enables runtime PM on the PHY device if it is already enabled on this parent device. However, the runtime PM callbacks dereference the hsphy instance, which is not yet ready, leaving a window where a suspend callback may trigger a NULL pointer dereference. Take a runtime PM usage reference with pm_runtime_get_noresume() before enabling runtime PM and release it once the PHY has been created, so that no runtime suspend can run before the PHY is ready. This also prevents a short window where an unnecessary runtime suspend can occur. Use the devres-managed version to ensure PM runtime is symmetrically disabled during driver removal for proper cleanup.
How severe is CVE-2026-90281?
Severity scoring for CVE-2026-90281 is pending analysis.
How do I fix CVE-2026-90281?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST