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spi: ch341: fix devres lifetime

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix devres lifetime USB drivers bind to USB interfaces and any device managed resources should have their lifetime tied to the interface rather than parent USB device. This avoids issues like memory leaks when drivers are unbound without their devices being physically disconnected (e.g. on probe deferral or configuration changes). Fix the controller and driver data lifetime so that they are released on driver unbind. Note that this also makes sure that the SPI controller is placed correctly under the USB interface in the device tree.

Products
Kernel
Affected versions
Not specified
Fixed versions
6.12.114, 6.18.32, 7.0.9
CVEs
CVE-2026-46228
Confirmed fixed CVEs
Not specified
Updated in this feed
5 Nov 2026, 04:00 UTC · Revision 1

Source evidence

spi: ch341: fix devres lifetime

core-osv · Original source

Published 28 May 2026, 09:40 UTC

In the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix devres lifetime USB drivers bind to USB interfaces and any device managed resources should have their lifetime tied to the interface rather than parent USB device. This avoids issues like memory leaks when drivers are unbound without their devices being physically disconnected (e.g. on probe deferral or configuration changes). Fix the controller and driver data lifetime so that they are released on driver unbind. Note that this also makes sure that the SPI controller is placed correctly under the USB interface in the device tree.

osv:CVE-2026-46228

Kernel

Fixed versions: 6.12.114, 6.18.32, 7.0.9

Complete source record
{
  "id": "9527e47cc00215dd2e2d5eedcf5ef181608827deb087ab2b6b65eed8f1d2c8af",
  "url": "https://osv.dev/vulnerability/CVE-2026-46228",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "spi: ch341: fix devres lifetime",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix devres lifetime USB drivers bind to USB interfaces and any device managed resources should have their lifetime tied to the interface rather than parent USB device. This avoids issues like memory leaks when drivers are unbound without their devices being physically disconnected (e.g. on probe deferral or configuration changes). Fix the controller and driver data lifetime so that they are released on driver unbind. Note that this also makes sure that the SPI controller is placed correctly under the USB interface in the device tree.",
    "evidence": "osv:CVE-2026-46228",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.114",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.32",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.9",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-46228",
      "aliases": [
        "CVE-2026-46228"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8846739f52afa07e63395c80227dc544f54bd7b1"
                },
                {
                  "fixed": "42dfcd2ced905ea3993d88a051c13e04ab1029f7"
                },
                {
                  "fixed": "4422fc2411cbbdf5104a914e0596bb483faea254"
                },
                {
                  "fixed": "108a64b27a52f781c4f3751641e3dd65c7dd2fb5"
                },
                {
                  "fixed": "abe572f630bc1f0e77041012ab075869036ede4f"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46228.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.11.0"
                },
                {
                  "fixed": "6.12.114"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.32"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.0.9"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46228.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.135088450Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/108a64b27a52f781c4f3751641e3dd65c7dd2fb5",
        "https://git.kernel.org/stable/c/42dfcd2ced905ea3993d88a051c13e04ab1029f7",
        "https://git.kernel.org/stable/c/4422fc2411cbbdf5104a914e0596bb483faea254",
        "https://git.kernel.org/stable/c/abe572f630bc1f0e77041012ab075869036ede4f",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46228.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-46228",
        "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/2026/46xxx/CVE-2026-46228.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-46228",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 510078,
  "published_at": "2026-05-28T09:40:48.689+00:00"
}