Bug 2464493 (CVE-2026-31758) - CVE-2026-31758 kernel: usb: usbtmc: Flush anchored URBs in usbtmc_release
Summary: CVE-2026-31758 kernel: usb: usbtmc: Flush anchored URBs in usbtmc_release
Keywords:
Status: NEW
Alias: CVE-2026-31758
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-01 15:09 UTC by OSIDB Bzimport
Modified: 2026-05-01 22:34 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-05-01 15:09:52 UTC 
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.
Comment 1 Keith Grant 2026-05-01 22:32:17 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050144-CVE-2026-31758-8487@gregkh/T
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