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CVE-2026-23078 (GCVE-0-2026-23078)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-05-11 21:59
VLAI
Title
ALSA: scarlett2: Fix buffer overflow in config retrieval
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: scarlett2: Fix buffer overflow in config retrieval The scarlett2_usb_get_config() function has a logic error in the endianness conversion code that can cause buffer overflows when count > 1. The code checks `if (size == 2)` where `size` is the total buffer size in bytes, then loops `count` times treating each element as u16 (2 bytes). This causes the loop to access `count * 2` bytes when the buffer only has `size` bytes allocated. Fix by checking the element size (config_item->size) instead of the total buffer size. This ensures the endianness conversion matches the actual element type.
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: ac34df733d2dfe3b553897a1e9e1a44414f09834 , < d5e80d1f97ae55bcea1426f551e4419245b41b9c (git)
Affected: ac34df733d2dfe3b553897a1e9e1a44414f09834 , < 51049f6e3f05d70660e2458ad3bb302a3721b751 (git)
Affected: ac34df733d2dfe3b553897a1e9e1a44414f09834 , < 91a756d22f0482eac5bedb113c8922f90b254449 (git)
Affected: ac34df733d2dfe3b553897a1e9e1a44414f09834 , < 27049f50be9f5ae3a62d272128ce0b381cb26a24 (git)
Affected: ac34df733d2dfe3b553897a1e9e1a44414f09834 , < 31a3eba5c265a763260976674a22851e83128f6d (git)
Affected: ac34df733d2dfe3b553897a1e9e1a44414f09834 , < 6f5c69f72e50d51be3a8c028ae7eda42c82902cb (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.199 , ≤ 5.15.* (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.68 , ≤ 6.12.* (semver)
Unaffected: 6.18.8 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:18:38+00:00",
      "cve": "CVE-2026-23078",
      "id": "CVE-2026-23078",
      "initial_release_date": "2026-02-04T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ALSA: scarlett2: Fix buffer overflow in config retrieval",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23078.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-24T02:40:19Z",
      "cve": "CVE-2026-23078",
      "id": "CVE-2026-23078",
      "initial_release_date": "2026-02-05T00:25:02Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "529",
      "product_status:known_not_affected": "121",
      "product_status:recommended": "295",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-23078",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-23078.json",
      "version": "26"
    }
  }
}



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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

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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.


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