{"id":"CVE-2026-90208","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nclocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type\n\nSamsung PWM timer might be used as a clock source on some legacy systems.\nWhen PREEMPT_RT is enabled on …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nclocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type\n\nSamsung PWM timer might be used as a clock source on some legacy systems.\nWhen PREEMPT_RT is enabled on …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= f11899894c0a683c754ca71b45f7c9c3d35a3a1c < 7eb5764d25c4ac7f5d126621660f7219b61fd2fd","Linux >= f11899894c0a683c754ca71b45f7c9c3d35a3a1c < 3b212f9d70805d91febae01d618868f4860e267c","Linux 3.10"],"published":"2026-09-17","updated":"2026-10-15","sourceUpdated":"2026-10-15T11:17:59.403","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90208","references":[{"url":"https://git.kernel.org/stable/c/3b212f9d70805d91febae01d618868f4860e267c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7eb5764d25c4ac7f5d126621660f7219b61fd2fd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a25ea67a913f98b8461aff1e9e3a5f6dc2378395","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8f823b47eb889ea70f4c360164e96453f40e3646"},{"url":"https://git.kernel.org/stable/c/5720fe5cabda19f395d194ca57321c7b85f8af80"}],"tags":["nvd","cve.org"],"epss":0.00209,"epssPercentile":0.10936,"ingestedAt":"2026-09-17T16:21:47.858Z","slug":"CVE-2026-90208","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nclocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type\n\nSamsung PWM timer might be used as a clock source on some legacy systems.\nWhen PREEMPT_RT is enabled on ARM, regular spinlock is converted to a\nsleeping lock (mutex-based), which must not be used in atomic context\nsuch as hard interrupt handlers. Switch the samsung_pwm_lock to the\nraw_spinlock, which remains a true non-sleeping spinlock even\nunder PREEMPT_RT.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}