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CVE-2026-64503

Unknown

Last modified

CVE-2026-64503 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: iio: accel: kxsd9: fix runtime PM imbalance on write_raw() error kxsd9_write_raw() takes a runtime PM reference with pm_runtime_get_sync() but returns -EINVAL directly when a scale with a non-zero integer part is requested, skipping the matching pm_runtime_put_autosuspend(). This leaks a runtime PM usage-counter reference on every such write, after which the device can no longer autosuspend. Set the error code and fall through to the existing put instead of returning early..

Description

In the Linux kernel, the following vulnerability has been resolved: iio: accel: kxsd9: fix runtime PM imbalance on write_raw() error kxsd9_write_raw() takes a runtime PM reference with pm_runtime_get_sync() but returns -EINVAL directly when a scale with a non-zero integer part is requested, skipping the matching pm_runtime_put_autosuspend(). This leaks a runtime PM usage-counter reference on every such write, after which the device can no longer autosuspend. Set the error code and fall through to the existing put instead of returning early.

Affected Software

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

VendorProductVersions
LinuxLinux>= 9a9a369d6178dd4e263c49085ce1b37e1e8f63a0, < a93fd69c1ab0854ac4f5b8439c26dfadb25dfd20; >= 9a9a369d6178dd4e263c49085ce1b37e1e8f63a0, < eeece4a85ece6f3837c75ef26a9b2bf5a1d0fcfc; >= 9a9a369d6178dd4e263c49085ce1b37e1e8f63a0, < 191fcfeb729ededd8dd2a999c6bf351ddfa0cec7; >= 9a9a369d6178dd4e263c49085ce1b37e1e8f63a0, < 36154171385a8a2444a4b3c6eaa0c5294cb02478; >= 9a9a369d6178dd4e263c49085ce1b37e1e8f63a0, < 223703d6e8bed50b6a0b47e160877909518d94b9; >= 9a9a369d6178dd4e263c49085ce1b37e1e8f63a0, < 6293211d142605bec435229ef0aa3668b8964164; >= 9a9a369d6178dd4e263c49085ce1b37e1e8f63a0, < 13a91e8631cfeb68e5b7fd6687f194f5a86e83fe; >= 9a9a369d6178dd4e263c49085ce1b37e1e8f63a0, < 44a5fd874bb6873bdaec59f722c1d57832fbc9df
LinuxLinux4.9

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-64503?
In the Linux kernel, the following vulnerability has been resolved: iio: accel: kxsd9: fix runtime PM imbalance on write_raw() error kxsd9_write_raw() takes a runtime PM reference with pm_runtime_get_sync() but returns -EINVAL directly when a scale with a non-zero integer part is requested, skipping the matching pm_runtime_put_autosuspend(). This leaks a runtime PM usage-counter reference on every such write, after which the device can no longer autosuspend. Set the error code and fall through to the existing put instead of returning early.
How severe is CVE-2026-64503?
Severity scoring for CVE-2026-64503 is pending analysis.
How do I fix CVE-2026-64503?
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