What’s Vulnerable › Vulnerabilities

CVE-2026-64503: iio: accel: kxsd9: fix runtime PM imbalance on write_raw() error

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-25 · updated 2026-08-17

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 products

• Linux kernel: 4.9 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/13a91e8631cfeb68e5b7fd6687f194f5a86e83fe
• https://git.kernel.org/stable/c/191fcfeb729ededd8dd2a999c6bf351ddfa0cec7
• https://git.kernel.org/stable/c/223703d6e8bed50b6a0b47e160877909518d94b9
• https://git.kernel.org/stable/c/36154171385a8a2444a4b3c6eaa0c5294cb02478
• https://git.kernel.org/stable/c/44a5fd874bb6873bdaec59f722c1d57832fbc9df
• https://git.kernel.org/stable/c/6293211d142605bec435229ef0aa3668b8964164
• https://git.kernel.org/stable/c/a93fd69c1ab0854ac4f5b8439c26dfadb25dfd20
• https://git.kernel.org/stable/c/eeece4a85ece6f3837c75ef26a9b2bf5a1d0fcfc

Get alerted when CVE-2026-64503 or the next vulnerability affects your stack