CVE-2026-64342
Received Received - Intake

BaseFortify

Publication date: 2026-07-25

Last updated on: 2026-07-25

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: USB: iowarrior: fix use-after-free on disconnect Submitted write URBs are not stopped on close() and therefore need to be stopped unconditionally on disconnect() to avoid use-after-free in the completion handler.

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Meta Information

Published
2026-07-25
Last Modified
2026-07-25
Generated
2026-07-25
AI Q&A
2026-07-25
EPSS Evaluated
N/A
NVD
CVE-2026-64342
EUVD
EUVD-2026-48886

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a use-after-free vulnerability in the Linux kernel's USB iowarrior driver. When a USB device using this driver is disconnected, submitted write operations (URBs) are not properly stopped, which can lead to a use-after-free error in the completion handler when the device is disconnected.

Detection Guidance

This vulnerability is specific to the Linux kernel's USB iowarrior driver and is triggered by USB device disconnects. Detection requires checking for use-after-free errors in kernel logs or monitoring USB device driver behavior. Commands like dmesg | grep -i iowarrior or journalctl -k | grep -i use-after-free may help identify issues.

Impact Analysis

This vulnerability could cause system instability or crashes if a USB device using the iowarrior driver is disconnected while write operations are still pending. It may lead to kernel panics or unexpected behavior in affected systems.

Mitigation Strategies

Apply the latest Linux kernel update that includes the fix for this vulnerability. If immediate patching is not possible, consider disabling the iowarrior USB driver module (rmmod iowarrior) to prevent exploitation until a patch is applied.

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