CVE-2026-90208
kernel: clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 13, 2026
Description
A flaw was found in the Linux kernel's samsung_pwm clock source driver. When the PREEMPT_RT (Preemptible Real-Time) feature is enabled on ARM systems, a regular spinlock is incorrectly converted to a sleeping lock. This can lead to a deadlock or system instability, resulting in a Denial of Service (DoS) for affected systems.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-413 · Improper Resource Locking