{"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": "2026-05-11T21:42:13.206Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:42:13.206Z"}, "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": [{"version": "28787ff9fbeaf57684eb64cc33e2ec8ceedf21b5", "lessThan": "736159f7b296d7a95f7208eb4799639b1f8b16a0", "status": "affected", "versionType": "git"}, {"version": "39efc9c8a973ddff5918191525d1679d0fb368ea", "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"}]}, {"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": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.75", "versionEndExcluding": "5.15.196"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.1.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.6.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.12.55"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.17.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.18"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19.17"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0.3"}]}]}], "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", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "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()."}], "id": "CVE-2025-40085", "lastModified": "2026-04-15T00:35:42.020", "metrics": {}, "published": "2025-10-29T14:15:55.117", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/28412b489b088fb88dff488305fd4e56bd47f6e4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/576312eb436326b44b7010f4d9ae2b698df075ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/736159f7b296d7a95f7208eb4799639b1f8b16a0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8503ac1a62075a085402e42a386b5c627c821a51"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bba7208765d26e5e36b87f21dacc2780b064f41f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: ALSA: usb-audio: Fix NULL pointer deference in try_to_register_card", "id": "2407069", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2407069"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-40085", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-10-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-40085\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-40085\nhttps://lore.kernel.org/linux-cve-announce/2025102910-CVE-2025-40085-0ce0@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-10-30T14:38:32.425561+00:00", "updated": "2025-10-30T14:38:32.425596+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}