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.
Affected versions
Linux kernel versions
4.9
and later are affected. Fixed in
5.10.261,
5.15.212,
6.1.178,
6.6.145,
6.12.96,
6.18.39,
7.1.4,
7.2-rc3
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-64503?
CVE-2026-64503 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.9 onward and has been patched in 5.10.261, 5.15.212, 6.1.178 and others. CVE-2026-64503 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-64503?
Yes. CVE-2026-64503 has been patched. Fixed versions include 5.10.261, 5.15.212, 6.1.178 and others. If you are running Linux kernel 4.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-64503 actively exploited?
No. CVE-2026-64503 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.