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Unscored CVE-2021-47612 EUVD-2021-34614GHSA-7vv8-23mh-rqfj

nfc: fix segfault in nfc_genl_dump_devices_done

Published Jun 19, 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-ibm-5.4 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-lts-xenial 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:

nfc: fix segfault in nfc_genl_dump_devices_done

When kmalloc in nfc_genl_dump_devices() fails then
nfc_genl_dump_devices_done() segfaults as below

KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 25 Comm: kworker/0:1 Not tainted 5.16.0-rc4-01180-g2a987e65025e-dirty #5
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/2014
Workqueue: events netlink_sock_destruct_work
RIP: 0010:klist_iter_exit+0x26/0x80
Call Trace:
<TASK>
class_dev_iter_exit+0x15/0x20
nfc_genl_dump_devices_done+0x3b/0x50
genl_lock_done+0x84/0xd0
netlink_sock_destruct+0x8f/0x270
__sk_destruct+0x64/0x3b0
sk_destruct+0xa8/0xd0
__sk_free+0x2e8/0x3d0
sk_free+0x51/0x90
netlink_sock_destruct_work+0x1c/0x20
process_one_work+0x411/0x710
worker_thread+0x6fd/0xa80

Affected products

VendorProductAffectedFixed
Linux Linux 3.1 4.4.296

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 5.15.15-1 —
Debian 13 linux 5.15.15-1 —
Debian 12 linux 5.15.15-1 —

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 5.4.0-105.119 —
Ubuntu 20.04 LTS linux-aws 5.4.0-1069.73 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1073.76 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1032.35 —
Ubuntu 20.04 LTS linux-gcp 5.4.0-1068.72 —
Ubuntu 20.04 LTS linux-gke +26 No fix yet —
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1037.38 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1018.20 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1059.62 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1067.72 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1056.63 —
Ubuntu 18.04 LTS linux 4.15.0-169.177 —
Ubuntu 18.04 LTS linux-aws 4.15.0-1121.129 —
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1069.73~18.04.1 —
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1131.144 —
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1073.76~18.04.1 —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1116.130 —
Ubuntu 18.04 LTS linux-gcp-5.4 5.4.0-1068.72~18.04.1 —
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-105.119~18.04.1 —
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1018.20~18.04.1 —
Ubuntu 18.04 LTS linux-kvm 4.15.0-1107.109 —
Ubuntu 18.04 LTS linux-oracle 4.15.0-1087.95 —
Ubuntu 18.04 LTS linux-oracle-5.4 5.4.0-1067.72~18.04.1 —
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1056.63~18.04.1 —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 8 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 16.04 LTS linux-fips 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 5.4.0-1046.52 —
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 4.15.0-2061.63 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2043.47 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1078.87 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2026.28 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips No fix yet —
Ubuntu Pro 16.04 LTS linux +2 No fix yet —
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1120.128~16.04.1 —
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1131.144~16.04.1 —
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1116.130~16.04.1 —
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-169.177~16.04.1 —
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1087.95~16.04.1 —
Ubuntu Pro 14.04 LTS linux +2 No fix yet —
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1131.144~14.04.1 —

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +5 5.14.21-150500.55.73.1 SUSE-SU-2024:2939-1
SLES 15 SP5 kernel-azure +2 5.14.21-150500.33.60.1 SUSE-SU-2024:2372-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.73.1.150500.6.33.8 SUSE-SU-2024:2939-1
SLES 15 SP5 kernel-docs 5.14.21-150500.55.73.2 SUSE-SU-2024:2939-1
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.128.1 SUSE-SU-2024:2929-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.128.1.150400.24.62.1 SUSE-SU-2024:2929-1
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 12 SP5 kernel-syms +2 4.12.14-122.234.1 SUSE-SU-2025:0034-1
Show 17 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.128.1.150400.24.62.1 SUSE-SU-2024:2929-1
SLES for SAP 15 SP4 kernel-docs +4 5.14.21-150400.24.128.1 SUSE-SU-2024:2929-1
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
SLE Micro 5.5 kernel-default 5.14.21-150500.55.73.1 SUSE-SU-2024:2939-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.73.1.150500.6.33.8 SUSE-SU-2024:2939-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.61.1 SUSE-SU-2024:2394-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.128.1 SUSE-SU-2024:2929-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.128.1.150400.24.62.1 SUSE-SU-2024:2929-1
SLE Micro 5.4 kernel-rt +1 5.14.21-150400.15.88.1 SUSE-SU-2024:2902-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.128.1 SUSE-SU-2024:2929-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.128.1.150400.24.62.1 SUSE-SU-2024:2929-1
SLE Micro 5.3 kernel-rt +1 5.14.21-150400.15.88.1 SUSE-SU-2024:2902-1
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 5.14.21-150500.55.73.1 SUSE-SU-2024:2939-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_17 +1 1-150500.11.3.1 SUSE-SU-2024:2939-1, SUSE-SU-2024:2394-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.128.1 SUSE-SU-2024:2929-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_29 1-150400.9.3.1 SUSE-SU-2024:2929-1
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 12 SP5 kernel-default 4.12.14-122.234.1 SUSE-SU-2024:4100-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_62 1-8.3.1 SUSE-SU-2024:4100-1
SLE HPC 15 SP4 kernel-64kb +5 5.14.21-150400.24.128.1 SUSE-SU-2024:2929-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.128.1.150400.24.62.1 SUSE-SU-2024:2929-1
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
SUSE Real Time Module 15 SP5 kernel-rt +3 5.14.21-150500.13.61.1 SUSE-SU-2024:2394-1
SUSE Manager Server 4.3 kernel-default-base 5.14.21-150400.24.128.1.150400.24.62.1 SUSE-SU-2024:2929-1
SUSE Manager Server 4.3 kernel-syms +3 5.14.21-150400.24.128.1 SUSE-SU-2024:2929-1
SUSE Manager Proxy 4.3 kernel-default-base 5.14.21-150400.24.128.1.150400.24.62.1 SUSE-SU-2024:2929-1
SUSE Manager Proxy 4.3 kernel-syms +2 5.14.21-150400.24.128.1 SUSE-SU-2024:2929-1
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 +9 5.14.21-150500.55.73.1 SUSE-SU-2024:2939-1
openSUSE Leap 15.5 kernel-azure +2 5.14.21-150500.33.60.1 SUSE-SU-2024:2372-1
openSUSE Leap 15.5 kernel-default-base 5.14.21-150500.55.73.1.150500.6.33.8 SUSE-SU-2024:2939-1
openSUSE Leap 15.5 kernel-docs 5.14.21-150500.55.73.2 SUSE-SU-2024:2939-1
openSUSE Leap 15.5 kernel-rt +3 5.14.21-150500.13.61.1 SUSE-SU-2024:2394-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.5 kernel-default 5.14.21-150500.55.73.1 SUSE-SU-2024:2939-1
openSUSE Leap Micro 5.5 kernel-default-base 5.14.21-150500.55.73.1.150500.6.33.8 SUSE-SU-2024:2939-1

Advisories 10

References