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
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)
Create a notification for this product.
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: ALSA: caiaq: Handle probe errors properly",
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      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-15T05:08:42Z",
      "cve": "CVE-2026-46004",
      "id": "CVE-2026-46004",
      "initial_release_date": "2026-05-28T03:54:33Z",
      "product_status:known_affected": "573",
      "product_status:known_not_affected": "17",
      "product_status:recommended": "157",
      "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": "16"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.