CVE-2026-80854Medium· 4.7▾ SunlitA flaw was found in the Linux kernel's f_tcm USB gadget module. A race condition can occur during the teardown of a Logical Unit Number (LUN) when it overlaps with a session removal. This timing issue can lead to a use-after-free vulnerabi…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 25.9 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 19.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
Last analysed / modified upstream
— → 4.7
none → medium
A flaw was found in the Linux kernel's f_tcm USB gadget module. A race condition can occur during the teardown of a Logical Unit Number (LUN) when it overlaps with a session removal. This timing issue can lead to a use-after-free vulnerability, causing the system to crash and resulting in a Denial of Service (DoS).
kernel: usb: gadget: f_tcm: keep port count until LUN teardown completes — rated Moderate by Red Hat. Released 2026-09-04, updated 2026-10-24.
Affected:
No fix planned:
Out of support scope
Workarounds / mitigations:
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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