ASoC: sma1307: fix double free of devm_kzalloc() memory

{
  "id": "9c4fb14f8e608de22f0131c135e1b0e229c2c17247274066c83cb8bc210c7a7b",
  "url": "https://osv.dev/vulnerability/CVE-2026-31475",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ASoC: sma1307: fix double free of devm_kzalloc() memory",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ASoC: sma1307: fix double free of devm_kzalloc() memory A previous change added NULL checks and cleanup for allocation failures in sma1307_setting_loaded(). However, the cleanup for mode_set entries is wrong. Those entries are allocated with devm_kzalloc(), so they are device-managed resources and must not be freed with kfree(). Manually freeing them in the error path can lead to a double free when devres later releases the same memory. Drop the manual kfree() loop and let devres handle the cleanup.",
    "evidence": "osv:CVE-2026-31475",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.21",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.19.11",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-31475",
      "aliases": [
        "CVE-2026-31475"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0ec6bd16705fe21d6429d6b8f7981eae2142bba8"
                },
                {
                  "fixed": "d472d1a52985211b92883bb64bbe710b45980190"
                },
                {
                  "fixed": "1a82c3272626db9006f4c2cad3adf2916417aed6"
                },
                {
                  "fixed": "fe757092d2329c397ecb32f2bf68a5b1c4bd9193"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6.14.9"
                },
                {
                  "fixed": "6.15"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f8434b8ba437d3f6cbcd9ffe8405bd16ed28fc5c"
                }
              ]
            }
          ],
          "versions": [
            "v6.14.11",
            "v6.14.10",
            "v6.14.9"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31475.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.15.0"
                },
                {
                  "fixed": "6.18.21"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "6.19.11"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31475.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.784457994Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1a82c3272626db9006f4c2cad3adf2916417aed6",
        "https://git.kernel.org/stable/c/d472d1a52985211b92883bb64bbe710b45980190",
        "https://git.kernel.org/stable/c/fe757092d2329c397ecb32f2bf68a5b1c4bd9193",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31475.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-31475",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31475.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-31475",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492258,
  "published_at": "2026-04-22T13:54:04.113+00:00"
}