CVE-2026-43429 (GCVE-0-2026-43429)
Vulnerability from cvelistv5
Published
2026-05-08 14:22
Modified
2026-05-11 22:24
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: USB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts The usbtmc driver accepts timeout values specified by the user in an ioctl command, and uses these timeouts for some usb_bulk_msg() calls. Since the user can specify arbitrarily long timeouts and usb_bulk_msg() uses unkillable waits, call usb_bulk_msg_killable() instead to avoid the possibility of the user hanging a kernel thread indefinitely.
References
Impacted products
Vendor Product Version
Linux Linux Version: 048c6d88a0214757926f264823829e79154fcd4f
Version: 048c6d88a0214757926f264823829e79154fcd4f
Version: 048c6d88a0214757926f264823829e79154fcd4f
Version: 048c6d88a0214757926f264823829e79154fcd4f
Version: 048c6d88a0214757926f264823829e79154fcd4f
Version: 048c6d88a0214757926f264823829e79154fcd4f
Version: 048c6d88a0214757926f264823829e79154fcd4f
Version: 048c6d88a0214757926f264823829e79154fcd4f
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/class/usbtmc.c"
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "4.19"
            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "5.10.253",
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            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.203",
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              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.167",
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              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.130",
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              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.78",
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              "status": "unaffected",
              "version": "6.18.19",
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              "version": "6.19.9",
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts\n\nThe usbtmc driver accepts timeout values specified by the user in an\nioctl command, and uses these timeouts for some usb_bulk_msg() calls.\nSince the user can specify arbitrarily long timeouts and\nusb_bulk_msg() uses unkillable waits, call usb_bulk_msg_killable()\ninstead to avoid the possibility of the user hanging a kernel thread\nindefinitely."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:24:25.178Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e14a0dcdf468c3ad616bb06696c7c64c36e736d8"
        },
        {
          "url": "https://git.kernel.org/stable/c/7fa72c369c23c27d1f64883c1e276af950557fb1"
        },
        {
          "url": "https://git.kernel.org/stable/c/72c0a063489be183cfb99e7050aaef503bdb6449"
        },
        {
          "url": "https://git.kernel.org/stable/c/39bd4097292fd8564cf2cfba9356f8ab11e38d12"
        },
        {
          "url": "https://git.kernel.org/stable/c/0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d"
        },
        {
          "url": "https://git.kernel.org/stable/c/6cb7dc91f057dd8ce44f6caa2995d8e22784ed0a"
        },
        {
          "url": "https://git.kernel.org/stable/c/d4f1c45bdff3f393f9ab7e76795901c442b9eb76"
        },
        {
          "url": "https://git.kernel.org/stable/c/7784caa413a89487dd14dd5c41db8753483b2acb"
        }
      ],
      "title": "USB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43429",
    "datePublished": "2026-05-08T14:22:01.739Z",
    "dateReserved": "2026-05-01T14:12:56.009Z",
    "dateUpdated": "2026-05-11T22:24:25.178Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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