CVE-2026-46004 (GCVE-0-2026-46004)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:56 – Updated: 2026-06-14 17:47
VLAI
Title
ALSA: caiaq: Handle probe errors properly
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: Handle probe errors properly The probe procedure of setup_card() in caiaq driver doesn't treat the error cases gracefully, e.g. the error from snd_card_register() calls snd_card_free() but continues. This would lead to a UAF for the further calls like snd_usb_caiaq_control_init(), as Berk suggested in another patch in the link below. However, the problem is not only that; in general, this function drops the all error handlings (as it's a void function) although its caller can propagate an error to snd_probe(), which eventually calls snd_card_free() as a proper error path. That said, we should treat each error case in setup_card(), and just return the error code promptly, which is then handled later as a fatal error in snd_probe(). This patch achieves it by changing the setup_card() to return an error code. Also, the superfluous snd_card_free() call is removed, too. Note that card->private_free can be set still safely at returning an error. All called functions in card_free() have checks of the unassigned resources or NULL checks.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 , < da938aa9fc7826901921dcea225948ab21a97e45 (git)
Affected: 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 , < 09616e25f502080ba684fc7fcf959d1376ab756d (git)
Affected: 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 , < b956e48371f2ff72b76be9a829800ecec963bd45 (git)
Affected: 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 , < f537e3ad69609f6924a4db6b4a7f6561f5288bdd (git)
Affected: 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 , < 6251e3e256337a30160ef59ab1580dde4d1acd28 (git)
Affected: 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 , < e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056 (git)
Affected: 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 , < 096dd8519cf2f768e9e14f224b627f7aaee1a9c5 (git)
Affected: 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 , < 28abd224db4a49560b452115bca3672a20e45b2f (git)
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Linux Linux Affected: 2.6.25
Unaffected: 0 , < 2.6.25 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (semver)
Unaffected: 6.12.86 , ≤ 6.12.* (semver)
Unaffected: 6.18.27 , ≤ 6.18.* (semver)
Unaffected: 7.0.4 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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        "id": "CVE-2026-46004",
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          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6251e3e256337a30160ef59ab1580dde4d1acd28"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b956e48371f2ff72b76be9a829800ecec963bd45"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/da938aa9fc7826901921dcea225948ab21a97e45"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f537e3ad69609f6924a4db6b4a7f6561f5288bdd"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T06:44:34+00:00",
      "cve": "CVE-2026-46004",
      "id": "CVE-2026-46004",
      "initial_release_date": "2026-05-27T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ALSA: caiaq: Handle probe errors properly",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46004.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T01:13:29Z",
      "cve": "CVE-2026-46004",
      "id": "CVE-2026-46004",
      "initial_release_date": "2026-05-28T03:54:33Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "673",
      "product_status:recommended": "287",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46004",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46004.json",
      "version": "25"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.