CVE-2021-47526
kernel: serial: liteuart: Fix NULL pointer dereference in ->remove()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 24, 2024
Updated · November 21, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
serial: liteuart: Fix NULL pointer dereference in ->remove()
drvdata has to be set in _probe() - otherwise platform_get_drvdata() causes null pointer dereference BUG in _remove().
Statement
Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference