{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0854611a19ae4dfa56569e6f640017a1d2dd3312"
            },
            {
              "fixed": "745adfe6c337f3d5d7737d57529d14a208151b45"
            },
            {
              "fixed": "6351ba62778f72dc4f6bc18bfa99e618829cff0d"
            },
            {
              "fixed": "021b58ac3e58cffa68ed9585ff492a19e98414f6"
            },
            {
              "fixed": "fd43eae7d539ea7cfc7c9f0d3f0eaa890415e8a7"
            },
            {
              "fixed": "8b9335aec93975bb9186d63993a5a610e5066ffc"
            },
            {
              "fixed": "2ed25c9d4400cf90d9201657963a231c27a5ea57"
            },
            {
              "fixed": "977659adb341f6e30fb00dcf183f63f29df879e2"
            },
            {
              "fixed": "590d74ec8f488e06b9f1c0f8f0941f45531f3a55"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.18.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93056.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_uac1_legacy: remove broken string configfs attributes\n\nThe UAC1_STR_ATTRIBUTE macro defines configfs show/store handlers for\nthe fn_play, fn_cap, and fn_cntl string options. The store function\ncontains an inverted null check on the kstrndup() return value.\n\nThis means every write attempt returns -ENOMEM on success and\ndereferences a NULL pointer on allocation failure. The attributes\nhave been broken and unused for many years.\n\nRemove the UAC1_STR_ATTRIBUTE macro and the three attributes it\ngenerated. The internal defaults (FILE_PCM_PLAYBACK, FILE_PCM_CAPTURE,\nFILE_CONTROL) set in f_audio_alloc_inst() are unaffected.",
  "id": "CVE-2026-93056",
  "modified": "2026-09-19T03:30:25.889689648Z",
  "published": "2026-09-17T16:10:44.442Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/021b58ac3e58cffa68ed9585ff492a19e98414f6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ed25c9d4400cf90d9201657963a231c27a5ea57"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/590d74ec8f488e06b9f1c0f8f0941f45531f3a55"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6351ba62778f72dc4f6bc18bfa99e618829cff0d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/745adfe6c337f3d5d7737d57529d14a208151b45"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8b9335aec93975bb9186d63993a5a610e5066ffc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/977659adb341f6e30fb00dcf183f63f29df879e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fd43eae7d539ea7cfc7c9f0d3f0eaa890415e8a7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93056.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93056"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "usb: gadget: f_uac1_legacy: remove broken string configfs attributes"
}