{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90397",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.811Z",
        "datePublished": "2026-09-17T16:09:28.967Z",
        "dateUpdated": "2026-10-21T12:51:27.984Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:51:27.984Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: qcom: scm: Fix NULL dereference in IRQ handler before __scm is published\n\nIn qcom_scm_probe(), devm_request_threaded_irq() is called before\nsmp_store_release(&__scm, scm). Two paths can dereference __scm before\nit is published, both causing a NULL pointer dereference.\n\nThe IRQ handler receives scm via its data argument but passes only wq_ctx\nto qcom_scm_waitq_wakeup() and qcom_scm_get_completion(), which then\ndereference __scm directly. Thread scm through both functions so the IRQ\nhandler path never touches __scm.\n\nNon-atomic SMC calls made during probe (e.g. from qcom_tzmem_init via\nqcom_scm_shm_bridge_enable) can return WAITQ_SLEEP, causing\nqcom_scm_wait_for_wq_completion() to run before __scm is published and\ndereference it. Add platform_set_drvdata(pdev, scm) early in probe and\nchange qcom_scm_wait_for_wq_completion() to take the device pointer and\nuse dev_get_drvdata() to reach scm, removing any dependency on __scm."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/firmware/qcom/qcom_scm-smc.c",
                        "drivers/firmware/qcom/qcom_scm.c",
                        "drivers/firmware/qcom/qcom_scm.h"
                    ],
                    "versions": [
                        {
                            "version": "6bf32599223634294cdc6efb359ffaab1d68073c",
                            "lessThan": "c9c1e3da0a206270e5df470ca1c82de52190d68c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6bf32599223634294cdc6efb359ffaab1d68073c",
                            "lessThan": "b451f38cb7f5bca78484362347f039c08c94de95",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6bf32599223634294cdc6efb359ffaab1d68073c",
                            "lessThan": "1d753df5899ec356272d08bc4718e82844e4bdf0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6bf32599223634294cdc6efb359ffaab1d68073c",
                            "lessThan": "f312ef5026678f14caf1378c5f7fffdf667f9c81",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6bf32599223634294cdc6efb359ffaab1d68073c",
                            "lessThan": "966d23c7e68ea32679275a7e3d2383181002c868",
                            "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/firmware/qcom/qcom_scm-smc.c",
                        "drivers/firmware/qcom/qcom_scm.c",
                        "drivers/firmware/qcom/qcom_scm.h"
                    ],
                    "versions": [
                        {
                            "version": "6.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "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": "6.3",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c9c1e3da0a206270e5df470ca1c82de52190d68c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b451f38cb7f5bca78484362347f039c08c94de95"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1d753df5899ec356272d08bc4718e82844e4bdf0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f312ef5026678f14caf1378c5f7fffdf667f9c81"
                },
                {
                    "url": "https://git.kernel.org/stable/c/966d23c7e68ea32679275a7e3d2383181002c868"
                }
            ],
            "title": "firmware: qcom: scm: Fix NULL dereference in IRQ handler before __scm is published",
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    }
}