CVE-2026-31758 (GCVE-0-2026-31758)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:14 – Updated: 2026-05-03 05:45
VLAI?
Title
usb: usbtmc: Flush anchored URBs in usbtmc_release
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: usbtmc: Flush anchored URBs in usbtmc_release When calling usbtmc_release, pending anchored URBs must be flushed or killed to prevent use-after-free errors (e.g. in the HCD giveback path). Call usbtmc_draw_down() to allow anchored URBs to be completed.
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4f3c8d6eddc272b386464524235440a418ed2029 , < 959ef329071136e4335b54822fe2f607659b4569 (git)
Affected: 4f3c8d6eddc272b386464524235440a418ed2029 , < e189d443767f7cd390c52f2e122e1fc41c7562d6 (git)
Affected: 4f3c8d6eddc272b386464524235440a418ed2029 , < 7fa8f61bab3fb75b5deba8a0f3abb74dc5068d9f (git)
Affected: 4f3c8d6eddc272b386464524235440a418ed2029 , < 95e09b07e50290254b28b8395509473104518f8c (git)
Affected: 4f3c8d6eddc272b386464524235440a418ed2029 , < d13318dec0c1e0e2ac16f8ecbd522db14cea4bb1 (git)
Affected: 4f3c8d6eddc272b386464524235440a418ed2029 , < 977b632db51d231dec0bc571089a5c2402674139 (git)
Affected: 4f3c8d6eddc272b386464524235440a418ed2029 , < d40198de50232e04c14c6e2092e896766c95ea48 (git)
Affected: 4f3c8d6eddc272b386464524235440a418ed2029 , < 8a768552f7a8276fb9e01d49773d2094ace7c8f1 (git)
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    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: 6.1.168 , ≤ 6.1.* (semver)
Unaffected: 6.6.134 , ≤ 6.6.* (semver)
Unaffected: 6.12.81 , ≤ 6.12.* (semver)
Unaffected: 6.18.22 , ≤ 6.18.* (semver)
Unaffected: 6.19.12 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/class/usbtmc.c"
          ],
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              "status": "unaffected",
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        }
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: usbtmc: Flush anchored URBs in usbtmc_release\n\nWhen calling usbtmc_release, pending anchored URBs must be flushed or\nkilled to prevent use-after-free errors (e.g. in the HCD giveback\npath). Call usbtmc_draw_down() to allow anchored URBs to be completed."
        }
      ],
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            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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      "providerMetadata": {
        "dateUpdated": "2026-05-03T05:45:46.007Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "dateReserved": "2026-03-09T15:48:24.139Z",
    "dateUpdated": "2026-05-03T05:45:46.007Z",
    "state": "PUBLISHED"
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      "date": "2026-05-07",
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.



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