EUVD-2026-26571CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
7DescriptionNVD
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.
AnalysisAI
Use-after-free condition in Linux kernel USB Test and Measurement Class (USBTMC) driver allows local authenticated attackers to execute arbitrary code with elevated privileges. The vulnerability occurs when the usbtmc_release function fails to properly flush pending anchored URBs, leaving dangling references that can be exploited in the HCD giveback path. …
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RemediationAI
Within 24 hours: Identify systems running Linux kernel versions prior to 5.10.253, 5.15.203, 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12, or 7.0 with USBTMC driver enabled. Within 7 days: Test patched kernel versions in non-production environments and validate USB device functionality. …
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