Vulnerability-Lookup

FKIE_CVE-2026-43429

Vulnerability from fkie_nvd - Published: 2026-05-08 15:16 - Updated: 2026-06-17 10:49

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/39bd4097292fd8564cf2cfba9356f8ab11e38d12	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6cb7dc91f057dd8ce44f6caa2995d8e22784ed0a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/72c0a063489be183cfb99e7050aaef503bdb6449	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7784caa413a89487dd14dd5c41db8753483b2acb	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7fa72c369c23c27d1f64883c1e276af950557fb1	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d4f1c45bdff3f393f9ab7e76795901c442b9eb76	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e14a0dcdf468c3ad616bb06696c7c64c36e736d8	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

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          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
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          "scope": "UNCHANGED",
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}

CVE-2026-43429 (GCVE-0-2026-43429)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:22 – Updated: 2026-05-11 22:24

Title

USB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/e14a0dcdf468c3ad6…
https://git.kernel.org/stable/c/7fa72c369c23c27d1…
https://git.kernel.org/stable/c/72c0a063489be183c…
https://git.kernel.org/stable/c/39bd4097292fd8564…
https://git.kernel.org/stable/c/0535f84cb94c9d8bc…
https://git.kernel.org/stable/c/6cb7dc91f057dd8ce…
https://git.kernel.org/stable/c/d4f1c45bdff3f393f…
https://git.kernel.org/stable/c/7784caa413a89487d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 048c6d88a0214757926f264823829e79154fcd4f , < e14a0dcdf468c3ad616bb06696c7c64c36e736d8 (git) Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 7fa72c369c23c27d1f64883c1e276af950557fb1 (git) Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 72c0a063489be183cfb99e7050aaef503bdb6449 (git) Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 39bd4097292fd8564cf2cfba9356f8ab11e38d12 (git) Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d (git) Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 6cb7dc91f057dd8ce44f6caa2995d8e22784ed0a (git) Affected: 048c6d88a0214757926f264823829e79154fcd4f , < d4f1c45bdff3f393f9ab7e76795901c442b9eb76 (git) Affected: 048c6d88a0214757926f264823829e79154fcd4f , < 7784caa413a89487dd14dd5c41db8753483b2acb (git)
Linux	Linux	Affected: 4.19 Unaffected: 0 , < 4.19 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/class/usbtmc.c"
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                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.