{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-63908",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-63908"
  ],
  "published": "2026-07-19T14:56:29Z",
  "summary": "Input: atmel_mxt_ts - fix boundary check in mxt_prepare_cfg_mem",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: atmel_mxt_ts - fix boundary check in mxt_prepare_cfg_mem\n\nWhen a configuration file provides an object size that is larger than the\ndriver's known mxt_obj_size(object), the driver intends to discard the\nextra bytes.\n\nThe loop iterates using for (i = 0; i < size; i++). Inside the loop, the\ncondition to skip processing extra bytes is:\n\n    if (i > mxt_obj_size(object))\n        continue;\n\nSince i is a 0-based index, the valid indices for the object are 0 through\nmxt_obj_size(object) - 1.\n\nWhen i == mxt_obj_size(object), the condition evaluates to false, and the\ncode processes the byte instead of discarding it.\n\nThis causes the code to calculate byte_offset = reg + i - cfg->start_ofs\nand writes the byte there, overwriting exactly one byte of the adjacent\ninstance or object.\n\nUpdate the boundary check to skip extra bytes correctly by using >=.",
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  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-63908"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/862a1a32b5190241fce7a7d20229539a3926f31e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5c3681c3abc35cfac6b702251382312c60d96bc2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1017e1c6c6c49cccbcda9bbcfa49e50b0b6dad39"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e9b62996ba537774f68fecfd7eecb5aec1713952"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ae92e334544263a02d9f99e18385e718c44392c9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7f95f4792c0dc767fcb8e405391e779ab419d55a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6c6b989b4ebf22b086fdfcac2163b5cb55e34d8f"
    },
    {
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      "url": "https://git.kernel.org/stable/c/baa0210fb6a9dc3882509a9411b6d284d88fe30e"
    }
  ],
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    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-07-19T14:56:29Z"
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}