CVE-2021-47561
kernel: i2c: virtio: disable timeout handling
Severity
ModerateRed Hat Product Security
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 · 7.2CVSS: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