FKIE_CVE-2026-23078

Vulnerability from fkie_nvd - Published: 2026-02-04 17:16 - Updated: 2026-02-06 17:16
Severity ?
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/27049f50be9f5ae3a62d272128ce0b381cb26a24
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/31a3eba5c265a763260976674a22851e83128f6d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/51049f6e3f05d70660e2458ad3bb302a3721b751
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6f5c69f72e50d51be3a8c028ae7eda42c82902cb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/91a756d22f0482eac5bedb113c8922f90b254449
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d5e80d1f97ae55bcea1426f551e4419245b41b9c
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: scarlett2: Fix buffer overflow in config retrieval\n\nThe scarlett2_usb_get_config() function has a logic error in the\nendianness conversion code that can cause buffer overflows when\ncount \u003e 1.\n\nThe code checks `if (size == 2)` where `size` is the total buffer size in\nbytes, then loops `count` times treating each element as u16 (2 bytes).\nThis causes the loop to access `count * 2` bytes when the buffer only\nhas `size` bytes allocated.\n\nFix by checking the element size (config_item-\u003esize) instead of the\ntotal buffer size. This ensures the endianness conversion matches the\nactual element type."
    }
  ],
  "id": "CVE-2026-23078",
  "lastModified": "2026-02-06T17:16:23.610",
  "metrics": {},
  "published": "2026-02-04T17:16:18.543",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/27049f50be9f5ae3a62d272128ce0b381cb26a24"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/31a3eba5c265a763260976674a22851e83128f6d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/51049f6e3f05d70660e2458ad3bb302a3721b751"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6f5c69f72e50d51be3a8c028ae7eda42c82902cb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/91a756d22f0482eac5bedb113c8922f90b254449"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d5e80d1f97ae55bcea1426f551e4419245b41b9c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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