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Unscored CVE-2021-47372 EUVD-2021-34377GHSA-6hmf-7mx4-83j8

net: macb: fix use after free on rmmod

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

Vendor: Linux Product: Linux Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws 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-5.4 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.4 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-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-6.2 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop 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-5.4 Package: linux-hwe-5.8 Package: linux-hwe-6.2 Package: linux-hwe-edge Package: linux-ibm Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-kvm 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 Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime 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 Package: linux-vmware Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

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

net: macb: fix use after free on rmmod

plat_dev->dev->platform_data is released by platform_device_unregister(),
use of pclk and hclk is a use-after-free. Since device unregister won't
need a clk device we adjust the function call sequence to fix this issue.

[ 31.261225] BUG: KASAN: use-after-free in macb_remove+0x77/0xc6 [macb_pci]
[ 31.275563] Freed by task 306:
[ 30.276782] platform_device_release+0x25/0x80

Affected products

VendorProductAffectedFixed
Linux Linux 4.10 4.14.249

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.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 linux 5.14.9-1 —
Debian 13 linux 5.14.9-1 —
Debian 12 linux 5.14.9-1 —

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux-riscv +22 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-91.102 —
Ubuntu 20.04 LTS linux-aws 5.4.0-1060.63 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1064.67 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1022.25 —
Ubuntu 20.04 LTS linux-gcp +1 5.4.0-1058.62 —
Ubuntu 20.04 LTS linux-gke +26 No fix yet —
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1027.28 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1008.9 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1050.52 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1047.52 —
Ubuntu 18.04 LTS linux 4.15.0-163.171 —
Ubuntu 18.04 LTS linux-aws 4.15.0-1116.123 —
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1060.63~18.04.1 —
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1127.140 —
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1064.67~18.04.1 —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1112.126 —
Ubuntu 18.04 LTS linux-gcp-5.4 +1 5.4.0-1058.62~18.04.1 —
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-91.102~18.04.1 —
Ubuntu 18.04 LTS linux-kvm 4.15.0-1103.105 —
Ubuntu 18.04 LTS linux-oracle 4.15.0-1084.92 —
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1047.52~18.04.1 —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 6 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro FIPS 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1069.73+fips2 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1073.76+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1037.43 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1067.71~20.04.1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2057.59 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2039.43 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1073.82 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2022.24 —
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1116.123~16.04.1 —
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1127.140~16.04.1 —
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1112.126~16.04.1 —
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-163.171~16.04.1 —
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1084.92~16.04.1 —
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1127.140~14.04.1 —

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.68.1 SUSE-SU-2024:2190-1
SLES 15 SP5 kernel-azure +2 5.14.21-150500.33.57.1 SUSE-SU-2024:2019-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.68.1.150500.6.31.1 SUSE-SU-2024:2190-1
SLES 15 SP4 kernel-64kb +4 5.14.21-150400.24.122.2 SUSE-SU-2024:2189-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.122.2.150400.24.58.2 SUSE-SU-2024:2189-1
SLES 15 SP4 kernel-syms +1 5.14.21-150400.24.122.1 SUSE-SU-2024:2189-1
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.167.1 SUSE-SU-2024:2362-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.167.1.150300.18.98.1 SUSE-SU-2024:2362-1
SLES 15 SP2 kernel-default-base 5.3.18-150200.24.197.1.150200.9.101.1 SUSE-SU-2024:2365-1
SLES 15 SP2 kernel-docs +5 5.3.18-150200.24.197.1 SUSE-SU-2024:2365-1
SLES 12 SP5 kernel-azure +2 4.12.14-16.191.1 SUSE-SU-2024:2360-1
SLES 12 SP5 kernel-docs +4 4.12.14-122.222.1 SUSE-SU-2024:2561-1
Show 22 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.122.2.150400.24.58.2 SUSE-SU-2024:2189-1
SLES for SAP 15 SP4 kernel-docs +2 5.14.21-150400.24.122.2 SUSE-SU-2024:2189-1
SLES for SAP 15 SP4 kernel-syms +1 5.14.21-150400.24.122.1 SUSE-SU-2024:2189-1
SLES for SAP 15 SP3 kernel-default-base 5.3.18-150300.59.167.1.150300.18.98.1 SUSE-SU-2024:2362-1
SLES for SAP 15 SP3 kernel-docs +5 5.3.18-150300.59.167.1 SUSE-SU-2024:2362-1
SLES for SAP 15 SP2 kernel-default-base 5.3.18-150200.24.197.1.150200.9.101.1 SUSE-SU-2024:2365-1
SLES for SAP 15 SP2 kernel-docs +5 5.3.18-150200.24.197.1 SUSE-SU-2024:2365-1
SLES for SAP 12 SP5 kernel-azure +2 4.12.14-16.191.1 SUSE-SU-2024:2360-1
SLES for SAP 12 SP5 kernel-syms +2 4.12.14-122.222.1 SUSE-SU-2024:2561-1
SLE Real Time 12 SP5 kernel-rt +3 4.12.14-10.191.1 SUSE-SU-2024:2381-1
SLE Micro 5.5 kernel-default 5.14.21-150500.55.68.1 SUSE-SU-2024:2190-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.68.1.150500.6.31.1 SUSE-SU-2024:2190-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.58.1 SUSE-SU-2024:2008-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.122.2 SUSE-SU-2024:2189-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.122.2.150400.24.58.2 SUSE-SU-2024:2189-1
SLE Micro 5.4 kernel-rt +1 5.14.21-150400.15.82.1 SUSE-SU-2024:2011-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.122.2 SUSE-SU-2024:2189-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.122.2.150400.24.58.2 SUSE-SU-2024:2189-1
SLE Micro 5.3 kernel-rt +1 5.14.21-150400.15.82.1 SUSE-SU-2024:2011-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.167.1 SUSE-SU-2024:2362-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.167.1.150300.18.98.1 SUSE-SU-2024:2362-1
SLE Micro 5.2 kernel-rt +1 5.3.18-150300.175.1 SUSE-SU-2024:2384-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.167.1 SUSE-SU-2024:2362-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.167.1.150300.18.98.1 SUSE-SU-2024:2362-1
SLE Micro 5.1 kernel-rt +1 5.3.18-150300.175.1 SUSE-SU-2024:2384-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.68.1 SUSE-SU-2024:2190-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_15 +1 1-150500.11.3.1 SUSE-SU-2024:2190-1, SUSE-SU-2024:2008-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.122.2 SUSE-SU-2024:2189-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_27 1-150400.9.3.2 SUSE-SU-2024:2189-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.167.1 SUSE-SU-2024:2362-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_46 1-150300.7.3.1 SUSE-SU-2024:2362-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-150200.24.197.1 SUSE-SU-2024:2365-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_50 1-150200.5.3.1 SUSE-SU-2024:2365-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.222.1 SUSE-SU-2024:2561-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_58 1-8.3.1 SUSE-SU-2024:2561-1
SLE HPC 15 SP4 kernel-64kb +3 5.14.21-150400.24.122.2 SUSE-SU-2024:2189-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.122.2.150400.24.58.2 SUSE-SU-2024:2189-1
SLE HPC 15 SP4 kernel-syms +1 5.14.21-150400.24.122.1 SUSE-SU-2024:2189-1
SLE HPC 15 SP3 kernel-64kb +6 5.3.18-150300.59.167.1 SUSE-SU-2024:2362-1
SLE HPC 15 SP3 kernel-default-base 5.3.18-150300.59.167.1.150300.18.98.1 SUSE-SU-2024:2362-1
SLE HPC 15 SP2 kernel-default-base 5.3.18-150200.24.197.1.150200.9.101.1 SUSE-SU-2024:2365-1
SLE HPC 15 SP2 kernel-docs +5 5.3.18-150200.24.197.1 SUSE-SU-2024:2365-1
SUSE Real Time Module 15 SP5 kernel-rt +3 5.14.21-150500.13.58.1 SUSE-SU-2024:2008-1
SUSE Manager Server 4.3 kernel-default +1 5.14.21-150400.24.122.2 SUSE-SU-2024:2189-1
SUSE Manager Server 4.3 kernel-default-base 5.14.21-150400.24.122.2.150400.24.58.2 SUSE-SU-2024:2189-1
SUSE Manager Server 4.3 kernel-syms +1 5.14.21-150400.24.122.1 SUSE-SU-2024:2189-1
SUSE Manager Proxy 4.3 kernel-default 5.14.21-150400.24.122.2 SUSE-SU-2024:2189-1
SUSE Manager Proxy 4.3 kernel-default-base 5.14.21-150400.24.122.2.150400.24.58.2 SUSE-SU-2024:2189-1
SUSE Manager Proxy 4.3 kernel-syms +1 5.14.21-150400.24.122.1 SUSE-SU-2024:2189-1
SUSE Enterprise Storage 7.1 kernel-64kb +6 5.3.18-150300.59.167.1 SUSE-SU-2024:2362-1
SUSE Enterprise Storage 7.1 kernel-default-base 5.3.18-150300.59.167.1.150300.18.98.1 SUSE-SU-2024:2362-1

openSUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
openSUSE Leap 15.5 dtb-aarch64 +10 5.14.21-150500.55.68.1 SUSE-SU-2024:2190-1
openSUSE Leap 15.5 kernel-azure +2 5.14.21-150500.33.57.1 SUSE-SU-2024:2019-1
openSUSE Leap 15.5 kernel-default-base 5.14.21-150500.55.68.1.150500.6.31.1 SUSE-SU-2024:2190-1
openSUSE Leap 15.5 kernel-rt +3 5.14.21-150500.13.58.1 SUSE-SU-2024:2008-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.4 kernel-default 5.14.21-150400.24.122.2 SUSE-SU-2024:2189-1
openSUSE Leap Micro 5.4 kernel-default-base 5.14.21-150400.24.122.2.150400.24.58.2 SUSE-SU-2024:2189-1
openSUSE Leap Micro 5.4 kernel-rt 5.14.21-150400.15.82.1 SUSE-SU-2024:2011-1
openSUSE Leap Micro 5.3 kernel-default 5.14.21-150400.24.122.2 SUSE-SU-2024:2189-1
openSUSE Leap Micro 5.3 kernel-default-base 5.14.21-150400.24.122.2.150400.24.58.2 SUSE-SU-2024:2189-1
openSUSE Leap Micro 5.3 kernel-rt 5.14.21-150400.15.82.1 SUSE-SU-2024:2011-1

Advisories 11

References