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CVE-2021-47561

kernel: i2c: virtio: disable timeout handling

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Severity

Moderate

Red Hat Product Security

7.2

CVSS 3.1

Review impact separately from score.

Published · May 24, 2024

Updated · October 1, 2026

Description

A vulnerability was found in the Linux kernel's i2c virtio driver, where timeout handling was improperly managed. If a timeout occurs, the device may continue to process buffers that the guest has already freed, leading to potential data corruption on the I2C bus.

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 do not 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 · 7.2
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer