CVE-2026-68365 (GCVE-0-2026-68365)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:03 – Updated: 2026-08-19 16:34
VLAI
Title
USB: serial: io_edgeport: cap received transmit credits
Summary
In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_edgeport: cap received transmit credits The interrupt-status packet reports transmit credits returned by the device. edge_interrupt_callback() adds the 16-bit value to txCredits without checking maxTxCredits. edge_write() uses txCredits minus the software FIFO count as the amount of data that fits. Since the FIFO is allocated with maxTxCredits bytes, txCredits exceeding maxTxCredits can cause OOB write in ring buffer. Cap accumulated credits at maxTxCredits. Conforming devices should never hit the cap.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d9dd87bc1d7e8476d29d68883542ec6198d385c6 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5b39d3da15344b87ef54a0a04f65b52622747e99 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 63c4e55d0741cfaf00515e807cad9293445cd348 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ee57992c053a6d395e98ced2d4c9cc3b42d8c27a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 64b687f9694777754285d489abbefa3784bc78da (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < cbe00048b69d67c8a78293cb7681b4c9963b26c7 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1e47d8228b8767c8ac722aedb388f70adeeda43d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < faaddd811c5099f11a5f52e68a6b31a5898cda4f (git)
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Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.10.265 , ≤ 5.10.* (semver)
Unaffected: 5.15.216 , ≤ 5.15.* (semver)
Unaffected: 6.1.183 , ≤ 6.1.* (semver)
Unaffected: 6.6.148 , ≤ 6.6.* (semver)
Unaffected: 6.12.101 , ≤ 6.12.* (semver)
Unaffected: 6.18.42 , ≤ 6.18.* (semver)
Unaffected: 7.1.6 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: io_edgeport: cap received transmit credits\n\nThe interrupt-status packet reports transmit credits returned by the\ndevice. edge_interrupt_callback() adds the 16-bit value to txCredits\nwithout checking maxTxCredits.\n\nedge_write() uses txCredits minus the software FIFO count as the amount\nof data that fits. Since the FIFO is allocated with maxTxCredits bytes,\ntxCredits exceeding maxTxCredits can cause OOB write in ring buffer.\n\nCap accumulated credits at maxTxCredits. Conforming devices should never\nhit the cap."
        }
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "cveId": "CVE-2026-68365",
    "datePublished": "2026-08-10T12:03:42.358Z",
    "dateReserved": "2026-07-30T09:28:09.385Z",
    "dateUpdated": "2026-08-19T16:34:21.018Z",
    "state": "PUBLISHED"
  },
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-13T22:42:15+00:00",
      "cve": "CVE-2026-68365",
      "id": "CVE-2026-68365",
      "initial_release_date": "2026-08-10T00:00:00+00:00",
      "product_status:known_affected": "275",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: USB: serial: io_edgeport: cap received transmit credits",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68365.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.