{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90208",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.793Z",
        "datePublished": "2026-09-17T16:07:23.479Z",
        "dateUpdated": "2026-10-21T12:50:27.938Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:50:27.938Z"
            },
            "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."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/clocksource/samsung_pwm_timer.c",
                        "drivers/pwm/pwm-samsung.c",
                        "include/clocksource/samsung_pwm.h"
                    ],
                    "versions": [
                        {
                            "version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
                            "lessThan": "8f823b47eb889ea70f4c360164e96453f40e3646",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
                            "lessThan": "5720fe5cabda19f395d194ca57321c7b85f8af80",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
                            "lessThan": "a25ea67a913f98b8461aff1e9e3a5f6dc2378395",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
                            "lessThan": "7eb5764d25c4ac7f5d126621660f7219b61fd2fd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f11899894c0a683c754ca71b45f7c9c3d35a3a1c",
                            "lessThan": "3b212f9d70805d91febae01d618868f4860e267c",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/clocksource/samsung_pwm_timer.c",
                        "drivers/pwm/pwm-samsung.c",
                        "include/clocksource/samsung_pwm.h"
                    ],
                    "versions": [
                        {
                            "version": "3.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.114",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.57",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "6.12.114"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "6.18.57"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.10",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "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"
            }
        }
    }
}