CVE-2026-90208
In the Linux kernel, the following vulnerability has been resolved: clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type Samsung PWM timer might be used as a clock source on some legacy systems. When PREEMPT_RT is enabled on ARM, regular spinlock is converted to a sleeping lock (mutex-based), which must not be used in atomic context such as hard interrupt handlers. Switch the samsung_pwm_lock to the raw_spinlock, which remains a true non-sleeping spinlock even under PREEMPT_RT.
Affected versions
Linux kernel versions
3.10
and later are affected. Fixed in
7.2.6,
7.3-rc1
and their respective stable series.
References
2 totalFrequently asked questions
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What is CVE-2026-90208?
CVE-2026-90208 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.10 onward and has been patched in 7.2.6 and 7.3-rc1. CVE-2026-90208 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-2026-90208?
Yes. CVE-2026-90208 has been patched. Fixed versions include 7.2.6 and 7.3-rc1. If you are running Linux kernel 3.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-90208 actively exploited?
No. CVE-2026-90208 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.