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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||
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| Linux | Linux | unaffected |
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| Linux | Linux | affected |
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No data.
No data.
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| Vendors | Products |
|---|---|
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Linux
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Linux Kernel
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No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Fri, 30 Oct 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
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| References |
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Wed, 21 Oct 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
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Thu, 15 Oct 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
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Sat, 19 Sep 2026 03:45:00 +0000
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| Weaknesses | CWE-727 |
Thu, 17 Sep 2026 16:30:00 +0000
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|---|---|---|
| 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. | |
| Title | clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
Projects
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MITRE
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-10-30T12:34:47.590Z
Reserved: 2026-09-11T19:38:34.793Z
Link: CVE-2026-90208
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-09-17T17:17:15.950
Modified: 2026-10-30T13:20:46.523
Link: CVE-2026-90208
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-09-19T03:30:18Z