CVE-2026-90208 (GCVE-0-2026-90208)
Vulnerability from cvelistv5 – Published: 2026-09-17 16:07 – Updated: 2026-10-21 12:50
VLAI
EPSS
VEX
Title
clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
f11899894c0a683c754ca71b45f7c9c3d35a3a1c , < 8f823b47eb889ea70f4c360164e96453f40e3646
(git)
Affected: f11899894c0a683c754ca71b45f7c9c3d35a3a1c , < 5720fe5cabda19f395d194ca57321c7b85f8af80 (git) Affected: f11899894c0a683c754ca71b45f7c9c3d35a3a1c , < a25ea67a913f98b8461aff1e9e3a5f6dc2378395 (git) Affected: f11899894c0a683c754ca71b45f7c9c3d35a3a1c , < 7eb5764d25c4ac7f5d126621660f7219b61fd2fd (git) Affected: f11899894c0a683c754ca71b45f7c9c3d35a3a1c , < 3b212f9d70805d91febae01d618868f4860e267c (git) |
guessed | |
| Linux | Linux |
Affected:
3.10
Unaffected: 0 , < 3.10 (semver) Unaffected: 6.6.160 , ≤ 6.6.* (semver) Unaffected: 6.12.114 , ≤ 6.12.* (semver) Unaffected: 6.18.57 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/clocksource/samsung_pwm_timer.c",
"drivers/pwm/pwm-samsung.c",
"include/clocksource/samsung_pwm.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "8f823b47eb889ea70f4c360164e96453f40e3646",
"status": "affected",
"version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
"versionType": "git"
},
{
"lessThan": "5720fe5cabda19f395d194ca57321c7b85f8af80",
"status": "affected",
"version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
"versionType": "git"
},
{
"lessThan": "a25ea67a913f98b8461aff1e9e3a5f6dc2378395",
"status": "affected",
"version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
"versionType": "git"
},
{
"lessThan": "7eb5764d25c4ac7f5d126621660f7219b61fd2fd",
"status": "affected",
"version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
"versionType": "git"
},
{
"lessThan": "3b212f9d70805d91febae01d618868f4860e267c",
"status": "affected",
"version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/clocksource/samsung_pwm_timer.c",
"drivers/pwm/pwm-samsung.c",
"include/clocksource/samsung_pwm.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.10"
},
{
"lessThan": "3.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.160",
"versionStartIncluding": "3.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.114",
"versionStartIncluding": "3.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.57",
"versionStartIncluding": "3.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2.6",
"versionStartIncluding": "3.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.3",
"versionStartIncluding": "3.10",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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 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."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-21T12:50:27.938Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/8f823b47eb889ea70f4c360164e96453f40e3646"
},
{
"url": "https://git.kernel.org/stable/c/5720fe5cabda19f395d194ca57321c7b85f8af80"
},
{
"url": "https://git.kernel.org/stable/c/a25ea67a913f98b8461aff1e9e3a5f6dc2378395"
},
{
"url": "https://git.kernel.org/stable/c/7eb5764d25c4ac7f5d126621660f7219b61fd2fd"
},
{
"url": "https://git.kernel.org/stable/c/3b212f9d70805d91febae01d618868f4860e267c"
}
],
"title": "clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-90208",
"datePublished": "2026-09-17T16:07:23.479Z",
"dateReserved": "2026-09-11T19:38:34.793Z",
"dateUpdated": "2026-10-21T12:50:27.938Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-90208",
"date": "2026-10-23",
"epss": "0.00209",
"percentile": "0.10475"
},
"microsoft_vex": {
"current_release_date": "2026-10-21T18:34:56.000Z",
"cve": "CVE-2026-90208",
"id": "msrc_CVE-2026-90208",
"initial_release_date": "2026-09-19T01:22:15.000Z",
"product_status:known_affected": "3",
"product_status:under_investigation": "1",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-90208.json",
"version": "5"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/clocksource/samsung_pwm_timer.c",
"drivers/pwm/pwm-samsung.c",
"include/clocksource/samsung_pwm.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "8f823b47eb889ea70f4c360164e96453f40e3646",
"status": "affected",
"version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
"versionType": "git"
},
{
"lessThan": "5720fe5cabda19f395d194ca57321c7b85f8af80",
"status": "affected",
"version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
"versionType": "git"
},
{
"lessThan": "a25ea67a913f98b8461aff1e9e3a5f6dc2378395",
"status": "affected",
"version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
"versionType": "git"
},
{
"lessThan": "7eb5764d25c4ac7f5d126621660f7219b61fd2fd",
"status": "affected",
"version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
"versionType": "git"
},
{
"lessThan": "3b212f9d70805d91febae01d618868f4860e267c",
"status": "affected",
"version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/clocksource/samsung_pwm_timer.c",
"drivers/pwm/pwm-samsung.c",
"include/clocksource/samsung_pwm.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.10"
},
{
"lessThan": "3.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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 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."
}
],
"id": "CVE-2026-90208",
"lastModified": "2026-10-21T13:20:43.340",
"metrics": {},
"published": "2026-09-17T17:17:15.950",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3b212f9d70805d91febae01d618868f4860e267c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/5720fe5cabda19f395d194ca57321c7b85f8af80"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7eb5764d25c4ac7f5d126621660f7219b61fd2fd"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/8f823b47eb889ea70f4c360164e96453f40e3646"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/a25ea67a913f98b8461aff1e9e3a5f6dc2378395"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-10-13T14:46:45+00:00",
"cve": "CVE-2026-90208",
"id": "CVE-2026-90208",
"initial_release_date": "2026-09-17T00:00:00+00:00",
"product_status:known_not_affected": "277",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90208.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-10-20T00:43:17Z",
"cve": "CVE-2026-90208",
"id": "CVE-2026-90208",
"initial_release_date": "2026-09-18T00:19:55Z",
"product_status:known_affected": "344",
"product_status:known_not_affected": "4",
"product_status:recommended": "4",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-90208",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-90208.json",
"version": "7"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.