High 7.8Published May 1, 2026

CVE-2026-31758usb: usbtmc: Flush anchored URBs in usbtmc_release

Updated under an hour ago (Oct 27, 2026, 6:30 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: usb: usbtmc: Flush anchored URBs in usbtmc_release When calling usbtmc_release, pending anchored URBs must be flushed or killed to prevent use-after-free errors (e.g. in the HCD giveback path). Call usbtmc_draw_down() to allow anchored URBs to be completed.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-416
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 4f3c8d6eddc272b386464524235440a418ed2029 before 959ef329071136e4335b54822fe2f607659b4569; from 4f3c8d6eddc272b386464524235440a418ed2029 before e189d443767f7cd390c52f2e122e1fc41c7562d6; from 4f3c8d6eddc272b386464524235440a418ed2029 before 7fa8f61bab3fb75b5deba8a0f3abb74dc5068d9f; from 4f3c8d6eddc272b386464524235440a418ed2029 before 95e09b07e50290254b28b8395509473104518f8c; from 4f3c8d6eddc272b386464524235440a418ed2029 before d13318dec0c1e0e2ac16f8ecbd522db14cea4bb1; from 4f3c8d6eddc272b386464524235440a418ed2029 before 977b632db51d231dec0bc571089a5c2402674139; from 4f3c8d6eddc272b386464524235440a418ed2029 before d40198de50232e04c14c6e2092e896766c95ea48; from 4f3c8d6eddc272b386464524235440a418ed2029 before 8a768552f7a8276fb9e01d49773d2094ace7c8f1	CNA record
linux linux_kernel linux:linux_kernel	from 4.19 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.168; from 6.2 before 6.6.134; from 6.7 before 6.12.81; from 6.13 before 6.18.22; from 6.19 before 6.19.12; 7.0; and 5 more ranges	NVD

References

References

https://git.kernel.org/stable/c/959ef329071136e4335b54822fe2f607659b4569	patch
https://git.kernel.org/stable/c/e189d443767f7cd390c52f2e122e1fc41c7562d6	patch
https://git.kernel.org/stable/c/7fa8f61bab3fb75b5deba8a0f3abb74dc5068d9f	patch
https://git.kernel.org/stable/c/95e09b07e50290254b28b8395509473104518f8c	patch
https://git.kernel.org/stable/c/d13318dec0c1e0e2ac16f8ecbd522db14cea4bb1	patch
https://git.kernel.org/stable/c/977b632db51d231dec0bc571089a5c2402674139	patch
https://git.kernel.org/stable/c/d40198de50232e04c14c6e2092e896766c95ea48	patch
https://git.kernel.org/stable/c/8a768552f7a8276fb9e01d49773d2094ace7c8f1	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.