CVE Database›Document archive›CVE-2020-12464

CVE-2020-12464

kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c

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Severity

Moderate

Red Hat Product Security

6.7

CVSS 3.1

Review impact separately from score.

Published · March 23, 2020

Updated · June 28, 2026

Description

A use-after-free flaw was found in usb_sg_cancel in drivers/usb/core/message.c in the USB core subsystem. This flaw allows a local attacker with a special user or root privileges to crash the system due to a race problem in the scatter-gather cancellation and transfer completion in usb_sg_wait. This vulnerability can also lead to a leak of internal kernel information.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 6.7
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE-416 · Use After Free