CVE-2026-23347 (GCVE-0-2026-23347)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-05-11 22:05
VLAI
Title
can: usb: f81604: correctly anchor the urb in the read bulk callback
Summary
In the Linux kernel, the following vulnerability has been resolved: can: usb: f81604: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usb_kill_anchored_urbs() is called. This logic is correctly done elsewhere in the driver, except in the read bulk callback so do that here also.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 88da17436973e463bed59bea79771fb03a21555e , < 54ee74307165b348b2fddcd7942eb48fb4ee1237 (git)
Affected: 88da17436973e463bed59bea79771fb03a21555e , < c001214e12202338425d6dda5d2a1919d674282d (git)
Affected: 88da17436973e463bed59bea79771fb03a21555e , < f6d80b104f904a6da922907394eec66d3e2ffc57 (git)
Affected: 88da17436973e463bed59bea79771fb03a21555e , < 7724645c4792914cd07f36718816c5369cc57970 (git)
Affected: 88da17436973e463bed59bea79771fb03a21555e , < 952caa5da10bed22be09612433964f6877ba0dde (git)
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Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.77 , ≤ 6.12.* (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T11:30:21+00:00",
      "cve": "CVE-2026-23347",
      "id": "CVE-2026-23347",
      "initial_release_date": "2026-03-25T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: can: usb: f81604: correctly anchor the urb in the read bulk callback",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23347.json",
      "version": "3"
    }
  }
}



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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

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.