Skip to content
OpenAdvisories
Unscored CVE-2021-47516 EUVD-2021-34520

nfp: Fix memory leak in nfp_cpp_area_cache_add()

Published May 24, 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-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:

nfp: Fix memory leak in nfp_cpp_area_cache_add()

In line 800 (#1), nfp_cpp_area_alloc() allocates and initializes a
CPP area structure. But in line 807 (#2), when the cache is allocated
failed, this CPP area structure is not freed, which will result in
memory leak.

We can fix it by freeing the CPP area when the cache is allocated
failed (#2).

792 int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size)
793 {
794 struct nfp_cpp_area_cache *cache;
795 struct nfp_cpp_area *area;

800 area = nfp_cpp_area_alloc(cpp, NFP_CPP_ID(7, NFP_CPP_ACTION_RW, 0),
801 0, size);
// #1: allocates and initializes

802 if (!area)
803 return -ENOMEM;

805 cache = kzalloc(sizeof(*cache), GFP_KERNEL);
806 if (!cache)
807 return -ENOMEM; // #2: missing free

817 return 0;
818 }

Affected products

VendorProductAffectedFixed
Linux Linux 4.11 4.14.258

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.

ReleasePackageFixed inAdvisory
Debian 14 linux 5.15.15-1 —
Debian 13 linux 5.15.15-1 —
Debian 12 linux 5.15.15-1 —
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 5.4.0-100.113 —
Ubuntu 20.04 LTS linux-aws 5.4.0-1066.69 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1070.73 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1028.31 —
Ubuntu 20.04 LTS linux-gcp 5.4.0-1065.69 —
Ubuntu 20.04 LTS linux-gke +26 No fix yet —
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1034.35 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1015.16 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1056.58 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1064.68 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1053.60 —
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 5.4.0-1066.69~18.04.1 —
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1131.144 —
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1070.73~18.04.1 —
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 5.4.0-1065.69~18.04.1 —
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-100.113~18.04.1 —
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1015.16~18.04.1 —
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 5.4.0-1064.68~18.04.1 —
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1053.60~18.04.1 —
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 5.4.0-1043.49 —
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 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-azure 4.15.0-1131.144~14.04.1 —
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 5.3.18-150300.59.164.1 SUSE-SU-2024:2185-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.164.1.150300.18.96.1 SUSE-SU-2024:2185-1
SLES 15 SP2 kernel-default-base 5.3.18-150200.24.194.1.150200.9.99.1 SUSE-SU-2024:2183-1
SLES 15 SP2 kernel-docs +5 5.3.18-150200.24.194.1 SUSE-SU-2024:2183-1
SLES 12 SP5 kernel-azure +2 4.12.14-16.194.1 SUSE-SU-2024:2901-1
SLES 12 SP5 kernel-docs 4.12.14-122.225.2 SUSE-SU-2024:2940-1
SLES 12 SP5 kernel-syms +3 4.12.14-122.225.1 SUSE-SU-2024:2940-1
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 5.3.18-150300.59.164.1.150300.18.96.1 SUSE-SU-2024:2185-1
SLES for SAP 15 SP3 kernel-docs +5 5.3.18-150300.59.164.1 SUSE-SU-2024:2185-1
SLES for SAP 15 SP2 kernel-default-base 5.3.18-150200.24.194.1.150200.9.99.1 SUSE-SU-2024:2183-1
SLES for SAP 15 SP2 kernel-docs +5 5.3.18-150200.24.194.1 SUSE-SU-2024:2183-1
SLES for SAP 12 SP5 kernel-azure +2 4.12.14-16.194.1 SUSE-SU-2024:2901-1
SLES for SAP 12 SP5 kernel-syms +2 4.12.14-122.225.1 SUSE-SU-2024:2940-1
SLE Real Time 12 SP5 kernel-rt +3 4.12.14-10.197.1 SUSE-SU-2024:2892-1
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 5.3.18-150300.59.164.1 SUSE-SU-2024:2185-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.164.1.150300.18.96.1 SUSE-SU-2024:2185-1
SLE Micro 5.2 kernel-rt +1 5.3.18-150300.172.1 SUSE-SU-2024:2010-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.164.1 SUSE-SU-2024:2185-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.164.1.150300.18.96.1 SUSE-SU-2024:2185-1
SLE Micro 5.1 kernel-rt +1 5.3.18-150300.172.1 SUSE-SU-2024:2010-1
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 5.3.18-150300.59.164.1 SUSE-SU-2024:2185-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_45 1-150300.7.3.1 SUSE-SU-2024:2185-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-150200.24.194.1 SUSE-SU-2024:2183-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_49 1-150200.5.3.1 SUSE-SU-2024:2183-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.225.1 SUSE-SU-2024:2940-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_59 1-8.3.1 SUSE-SU-2024:2940-1
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 5.3.18-150300.59.164.1 SUSE-SU-2024:2185-1
SLE HPC 15 SP3 kernel-default-base 5.3.18-150300.59.164.1.150300.18.96.1 SUSE-SU-2024:2185-1
SLE HPC 15 SP2 kernel-default-base 5.3.18-150200.24.194.1.150200.9.99.1 SUSE-SU-2024:2183-1
SLE HPC 15 SP2 kernel-docs +5 5.3.18-150200.24.194.1 SUSE-SU-2024:2183-1
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 5.3.18-150300.59.164.1 SUSE-SU-2024:2185-1
SUSE Enterprise Storage 7.1 kernel-default-base 5.3.18-150300.59.164.1.150300.18.96.1 SUSE-SU-2024:2185-1
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 12

References