Vulnerability-Lookup

FKIE_CVE-2025-40085

Vulnerability from fkie_nvd - Published: 2025-10-29 14:15 - Updated: 2026-06-17 09:21

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix NULL pointer deference in try_to_register_card In try_to_register_card(), the return value of usb_ifnum_to_if() is passed directly to usb_interface_claimed() without a NULL check, which will lead to a NULL pointer dereference when creating an invalid USB audio device. Fix this by adding a check to ensure the interface pointer is valid before passing it to usb_interface_claimed().

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/28412b489b088fb88dff488305fd4e56bd47f6e4
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/576312eb436326b44b7010f4d9ae2b698df075ea
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/736159f7b296d7a95f7208eb4799639b1f8b16a0
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8503ac1a62075a085402e42a386b5c627c821a51
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bba7208765d26e5e36b87f21dacc2780b064f41f

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/card.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "736159f7b296d7a95f7208eb4799639b1f8b16a0",
              "status": "affected",
              "version": "28787ff9fbeaf57684eb64cc33e2ec8ceedf21b5",
              "versionType": "git"
            },
            {
              "lessThan": "8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb",
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "versionType": "git"
            },
            {
              "lessThan": "576312eb436326b44b7010f4d9ae2b698df075ea",
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "versionType": "git"
            },
            {
              "lessThan": "bba7208765d26e5e36b87f21dacc2780b064f41f",
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "versionType": "git"
            },
            {
              "lessThan": "8503ac1a62075a085402e42a386b5c627c821a51",
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "versionType": "git"
            },
            {
              "lessThan": "28412b489b088fb88dff488305fd4e56bd47f6e4",
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9d4f4dc3cd38e412c29a7626489fe48b79ebbf6c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "52076a41c128146c9df4a157e972cb17019313b1",
              "versionType": "git"
            },
            {
              "lessThan": "5.15.196",
              "status": "affected",
              "version": "5.15.75",
              "versionType": "semver"
            },
            {
              "lessThan": "5.20",
              "status": "affected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1",
              "status": "affected",
              "version": "6.0.3",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/card.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
            {
              "lessThan": "6.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.196",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.114",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "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": "2026-06-17T09:21:14.337",
  "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"
}

CVE-2025-40085 (GCVE-0-2025-40085)

Vulnerability from cvelistv5 – Published: 2025-10-29 13:37 – Updated: 2026-05-23 16:01

Title

ALSA: usb-audio: Fix NULL pointer deference in try_to_register_card

Summary

Severity

No CVSS data available.

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/736159f7b296d7a95…
https://git.kernel.org/stable/c/8d19a7ab28c7b9c20…
https://git.kernel.org/stable/c/576312eb436326b44…
https://git.kernel.org/stable/c/bba7208765d26e5e3…
https://git.kernel.org/stable/c/8503ac1a62075a085…
https://git.kernel.org/stable/c/28412b489b088fb88…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 28787ff9fbeaf57684eb64cc33e2ec8ceedf21b5 , < 736159f7b296d7a95f7208eb4799639b1f8b16a0 (git) Affected: 39efc9c8a973ddff5918191525d1679d0fb368ea , < 8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb (git) Affected: 39efc9c8a973ddff5918191525d1679d0fb368ea , < 576312eb436326b44b7010f4d9ae2b698df075ea (git) Affected: 39efc9c8a973ddff5918191525d1679d0fb368ea , < bba7208765d26e5e36b87f21dacc2780b064f41f (git) Affected: 39efc9c8a973ddff5918191525d1679d0fb368ea , < 8503ac1a62075a085402e42a386b5c627c821a51 (git) Affected: 39efc9c8a973ddff5918191525d1679d0fb368ea , < 28412b489b088fb88dff488305fd4e56bd47f6e4 (git) Affected: 9d4f4dc3cd38e412c29a7626489fe48b79ebbf6c (git) Affected: 52076a41c128146c9df4a157e972cb17019313b1 (git) Affected: 5.15.75 , < 5.15.196 (semver) Affected: 5.19.17 , < 5.20 (semver) Affected: 6.0.3 , < 6.1 (semver)
Linux	Linux	Affected: 6.1 Unaffected: 0 , < 6.1 (semver) Unaffected: 5.15.196 , ≤ 5.15.* (semver) Unaffected: 6.1.158 , ≤ 6.1.* (semver) Unaffected: 6.6.114 , ≤ 6.6.* (semver) Unaffected: 6.12.55 , ≤ 6.12.* (semver) Unaffected: 6.17.5 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/card.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "736159f7b296d7a95f7208eb4799639b1f8b16a0",
              "status": "affected",
              "version": "28787ff9fbeaf57684eb64cc33e2ec8ceedf21b5",
              "versionType": "git"
            },
            {
              "lessThan": "8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb",
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "versionType": "git"
            },
            {
              "lessThan": "576312eb436326b44b7010f4d9ae2b698df075ea",
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "versionType": "git"
            },
            {
              "lessThan": "bba7208765d26e5e36b87f21dacc2780b064f41f",
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "versionType": "git"
            },
            {
              "lessThan": "8503ac1a62075a085402e42a386b5c627c821a51",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "28412b489b088fb88dff488305fd4e56bd47f6e4",
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9d4f4dc3cd38e412c29a7626489fe48b79ebbf6c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "52076a41c128146c9df4a157e972cb17019313b1",
              "versionType": "git"
            },
            {
              "lessThan": "5.15.196",
              "status": "affected",
              "version": "5.15.75",
              "versionType": "semver"
            },
            {
              "lessThan": "5.20",
              "status": "affected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1",
              "status": "affected",
              "version": "6.0.3",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/card.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
            {
              "lessThan": "6.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.196",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.114",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.196",
                  "versionStartIncluding": "5.15.75",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.158",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.114",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.55",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.5",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "6.1",
                  "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",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T16:01:24.342Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "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"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40085",
    "datePublished": "2025-10-29T13:37:04.707Z",
    "dateReserved": "2025-04-16T07:20:57.161Z",
    "dateUpdated": "2026-05-23T16:01:24.342Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2025-40085

CVE-2025-40085 (GCVE-0-2025-40085)

Tags

Sightings

Nomenclature