CVE-2026-90208

clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type

State: Published
Severity: Not scored
Published: Sep 17, 2026
Updated: Oct 30, 2026
Reserved: Sep 11, 2026

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before 9c97311a5f5d388eece66fc415167b38f35fe6a1Affected f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before 8f823b47eb889ea70f4c360164e96453f40e3646Affected f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before 5720fe5cabda19f395d194ca57321c7b85f8af80Affected f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before a25ea67a913f98b8461aff1e9e3a5f6dc2378395Affected f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before 7eb5764d25c4ac7f5d126621660f7219b61fd2fdAffected f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before 3b212f9d70805d91febae01d618868f4860e267cAffected
LinuxLinux	3.10Affected before 3.10Not affected 6.1.191 through 6.1.Not affected 6.6.160 through 6.6.Not affected 6.12.114 through 6.12.Not affected 6.18.57 through 6.18.Not affected 7.2.6 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before 9c97311a5f5d388eece66fc415167b38f35fe6a1Affected
f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before 8f823b47eb889ea70f4c360164e96453f40e3646Affected
f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before 5720fe5cabda19f395d194ca57321c7b85f8af80Affected
f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before a25ea67a913f98b8461aff1e9e3a5f6dc2378395Affected
f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before 7eb5764d25c4ac7f5d126621660f7219b61fd2fdAffected
f11899894c0a683c754ca71b45f7c9c3d35a3a1c to before 3b212f9d70805d91febae01d618868f4860e267cAffected

LinuxLinux

3.10Affected
before 3.10Not affected
6.1.191 through 6.1.*Not affected
6.6.160 through 6.6.*Not affected
6.12.114 through 6.12.*Not affected
6.18.57 through 6.18.*Not affected
7.2.6 through 7.2.*Not affected
7.3 and laterNot affected

References

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