{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-40085",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.161Z",
        "datePublished": "2025-10-29T13:37:04.707Z",
        "dateUpdated": "2026-05-23T16:01:24.342Z"
    },
    "containers": {
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            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:01:24.342Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Fix NULL pointer deference in try_to_register_card\n\nIn try_to_register_card(), the return value of usb_ifnum_to_if() is\npassed directly to usb_interface_claimed() without a NULL check, which\nwill lead to a NULL pointer dereference when creating an invalid\nUSB audio device. Fix this by adding a check to ensure the interface\npointer is valid before passing it to usb_interface_claimed()."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "sound/usb/card.c"
                    ],
                    "versions": [
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                            "version": "28787ff9fbeaf57684eb64cc33e2ec8ceedf21b5",
                            "lessThan": "736159f7b296d7a95f7208eb4799639b1f8b16a0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
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                            "lessThan": "8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
                            "lessThan": "576312eb436326b44b7010f4d9ae2b698df075ea",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
                            "lessThan": "bba7208765d26e5e36b87f21dacc2780b064f41f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
                            "lessThan": "8503ac1a62075a085402e42a386b5c627c821a51",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
                            "lessThan": "28412b489b088fb88dff488305fd4e56bd47f6e4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9d4f4dc3cd38e412c29a7626489fe48b79ebbf6c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "52076a41c128146c9df4a157e972cb17019313b1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.15.75",
                            "lessThan": "5.15.196",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19.17",
                            "lessThan": "5.20",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.3",
                            "lessThan": "6.1",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "sound/usb/card.c"
                    ],
                    "versions": [
                        {
                            "version": "6.1",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.1",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.196",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.158",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.114",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.55",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.5",
                            "lessThanOrEqual": "6.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "5.15.196"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.1",
                                    "versionEndExcluding": "6.1.158"
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                                    "versionEndExcluding": "6.18"
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/736159f7b296d7a95f7208eb4799639b1f8b16a0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/576312eb436326b44b7010f4d9ae2b698df075ea"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bba7208765d26e5e36b87f21dacc2780b064f41f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8503ac1a62075a085402e42a386b5c627c821a51"
                },
                {
                    "url": "https://git.kernel.org/stable/c/28412b489b088fb88dff488305fd4e56bd47f6e4"
                }
            ],
            "title": "ALSA: usb-audio: Fix NULL pointer deference in try_to_register_card",
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