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.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

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Vendors Products
References
Link Providers
https://git.kernel.org/stable/c/1e47d8228b8767c8ac722aedb388f70adeeda43d cve-icon
https://git.kernel.org/stable/c/64b687f9694777754285d489abbefa3784bc78da cve-icon
https://git.kernel.org/stable/c/cbe00048b69d67c8a78293cb7681b4c9963b26c7 cve-icon
https://git.kernel.org/stable/c/ee57992c053a6d395e98ced2d4c9cc3b42d8c27a cve-icon
https://git.kernel.org/stable/c/faaddd811c5099f11a5f52e68a6b31a5898cda4f cve-icon
History

Mon, 10 Aug 2026 17:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Mon, 10 Aug 2026 12:30:00 +0000

Type Values Removed Values Added
Description 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.
Title USB: serial: io_edgeport: cap received transmit credits
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-10T12:03:42.358Z

Reserved: 2026-07-30T09:28:09.385Z

Link: CVE-2026-68365

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

Updated: 2026-08-10T16:45:03Z