CVE-2026-46074 (GCVE-0-2026-46074)
Vulnerability from cvelistv5
Published
2026-05-27 12:58
Modified
2026-06-14 17:52
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix memory leaks on probe failures Make sure to deregister the controller, disable pins, and kill and free the RX URB on probe failures to mirror disconnect and avoid memory leaks and use-after-free. Also add an explicit URB kill on disconnect for symmetry (even if that is not strictly required as USB core would have stopped it in the current setup).
References
Impacted products
Vendor Product Version
Linux Linux Version: 8846739f52afa07e63395c80227dc544f54bd7b1
Version: 8846739f52afa07e63395c80227dc544f54bd7b1
Version: 8846739f52afa07e63395c80227dc544f54bd7b1
Version: 8846739f52afa07e63395c80227dc544f54bd7b1
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-ch341.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5c6518633702d7f7b1153e9d8e042af847f11ef3",
              "status": "affected",
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            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-ch341.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.27",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.86",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.18.27",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: ch341: fix memory leaks on probe failures\n\nMake sure to deregister the controller, disable pins, and kill and free\nthe RX URB on probe failures to mirror disconnect and avoid memory\nleaks and use-after-free.\n\nAlso add an explicit URB kill on disconnect for symmetry (even if that\nis not strictly required as USB core would have stopped it in the\ncurrent setup)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:52:24.650Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5c6518633702d7f7b1153e9d8e042af847f11ef3"
        },
        {
          "url": "https://git.kernel.org/stable/c/ff8a7996dc8bf433efe2126ffdaee5b374a89e30"
        },
        {
          "url": "https://git.kernel.org/stable/c/9bee2faf9e21c796d0d222c9d84a98f41bd303a0"
        },
        {
          "url": "https://git.kernel.org/stable/c/b99e3ddb91b499d920e63a2daff8880be68cfe9e"
        }
      ],
      "title": "spi: ch341: fix memory leaks on probe failures",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46074",
    "datePublished": "2026-05-27T12:58:04.703Z",
    "dateReserved": "2026-05-13T15:03:33.096Z",
    "dateUpdated": "2026-06-14T17:52:24.650Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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