clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type

{
  "id": "f2cf6c27c1da5d524c3cdd7adb6deafc3c1973536933aadad16849e871e89abd",
  "url": "https://osv.dev/vulnerability/CVE-2026-90208",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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.",
    "evidence": "osv:CVE-2026-90208",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.191",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.160",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.114",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.57",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-90208",
      "aliases": [
        "CVE-2026-90208"
      ],
      "affected": [
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                  "fixed": "a25ea67a913f98b8461aff1e9e3a5f6dc2378395"
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                  "fixed": "3b212f9d70805d91febae01d618868f4860e267c"
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90208.json"
          }
        },
        {
          "ranges": [
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              "type": "ECOSYSTEM",
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                  "introduced": "3.10.0"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90208.json"
          }
        }
      ],
      "modified": "2026-11-01T02:30:49.470945978Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3b212f9d70805d91febae01d618868f4860e267c",
        "https://git.kernel.org/stable/c/5720fe5cabda19f395d194ca57321c7b85f8af80",
        "https://git.kernel.org/stable/c/7eb5764d25c4ac7f5d126621660f7219b61fd2fd",
        "https://git.kernel.org/stable/c/8f823b47eb889ea70f4c360164e96453f40e3646",
        "https://git.kernel.org/stable/c/9c97311a5f5d388eece66fc415167b38f35fe6a1",
        "https://git.kernel.org/stable/c/a25ea67a913f98b8461aff1e9e3a5f6dc2378395",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90208.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-90208",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90208.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-90208",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 504473,
  "published_at": "2026-09-17T16:07:23.479+00:00"
}