CVE-2026-68367: usb: gadget: f_tcm: synchronize delayed set_alt with teardown

CSIRTS triage

What

Race condition between delayed set_alt and teardown in USB gadget TCM function.

Who is affected

Systems running affected Linux kernel versions with USB gadget support enabled.

Urgency

Medium severity; not currently exploited but can cause synchronization issues.

Action

Apply kernel patch or update to a fixed version once released.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

Microsoft Security Response Center (INTL · vendor-psirt · site)

Severity

medium — CVSS 5.5

Published

2026-08-11

Exploitation

Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68367

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Low exploitation riskCVE-2026-683670.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• unknownDSA-6466-1 linux - security updatedebian
• unknownCVE-2026-68367: In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_tcm: synchr…nvd

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