Unscored CVE-2021-47287 EUVD-2021-34292GHSA-g7gx-qmj4-gxrc

driver core: auxiliary bus: Fix memory leak when driver_register() fail

Published May 21, 2024 · Updated May 11, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: linux-allwinner-5.19 Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-azure Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.8 Package: linux-azure-6.2 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-gcp Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.8 Package: linux-gcp-6.2 Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.19 Package: linux-hwe-5.8 Package: linux-hwe-6.2 Package: linux-hwe-edge Package: linux-intel-5.13 Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.2 Package: linux-nvidia-6.2 Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.3 Package: linux-oracle-5.8 Package: linux-raspi2 Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Platform: Linux Ecosystem: Ubuntu

Description

In the Linux kernel, the following vulnerability has been resolved:

driver core: auxiliary bus: Fix memory leak when driver_register() fail

If driver_register() returns with error we need to free the memory
allocated for auxdrv->driver.name before returning from
__auxiliary_driver_register()

Affected products

Vendor	Product	Affected	Fixed
Linux	Linux	5.11	5.13.6

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Ubuntu

Security tracker ↗

Release	Package	Fixed in	Advisory
Ubuntu 22.04 LTS	linux-riscv +20	No fix yet	—
Ubuntu 20.04 LTS	linux-gke +26	No fix yet	—
Ubuntu 18.04 LTS	linux-gcp +14	No fix yet	—
Ubuntu 16.04 LTS	linux-hwe-edge	No fix yet	—

Red Hat

Security tracker ↗

Release	Package	Fixed in	Advisory
RHEL 8	kernel-rt +12	4.18.0-553.22.1.rt7.363.el8_10	RHSA-2024:7001
RHEL 8	perf +26	4.18.0-553.22.1.el8_10	RHSA-2024:7000

AlmaLinux

Release	Package	Fixed in	Advisory
AlmaLinux 8	kernel-rt +11	4.18.0-553.22.1.rt7.363.el8_10	ALSA-2024:7001
AlmaLinux 8	perf +24	4.18.0-553.22.1.el8_10	ALSA-2024:7000

Rocky Linux

Release	Package	Fixed in	Advisory
Rocky Linux 8	kernel	4.18.0-553.22.1.el8_10	RLSA-2024:7000
Rocky Linux 8	kernel-rt	4.18.0-553.22.1.rt7.363.el8_10	RLSA-2024:7001

Oracle Linux

Release	Package	Fixed in	Advisory
Oracle Linux 8	perf +19	4.18.0-553.22.1.el8_10	ELSA-2024-7000

Advisories 7

RHSA-2024:7000 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
RHSA-2024:7001 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
ALSA-2024:7001 Important: kernel-rt security update AlmaLinux Security Advisories · Oct 29, 2026
ALSA-2024:7000 Important: kernel security update AlmaLinux Security Advisories · Oct 29, 2026
RLSA-2024:7001 Important: kernel-rt security update Rocky Linux Security Advisories · Feb 5, 2026
RLSA-2024:7000 Important: kernel security update Rocky Linux Security Advisories · May 7, 2025
ELSA-2024-7000 Important: kernel security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 24, 2024

References