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OpenAdvisories
Unscored CVE-2023-1838 EUVD-2023-24040GHSA-rc9p-5gf8-h3m8

A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a…

Published Apr 5, 2023 · Updated Oct 8, 2026 · Assigned by redhat

Package: kernel Package: linux Package: linux Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.15 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 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-5.15 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-edge 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-5.15 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 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-5.15 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.4 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-iot Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-nvidia 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-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 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-5.15 Package: linux-riscv-5.8 Package: linux-vmware Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the system, and could even lead to a kernel information leak problem.

Affected products

VendorProductAffectedFixed
— Kernel Linux Kernel prior to kernel 5.18 25 —

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 5.17.11-1 —
Debian 13 linux 5.17.11-1 —
Debian 12 linux 5.17.11-1 —
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux 5.15.0-47.51 —
Ubuntu 22.04 LTS linux-aws 5.15.0-1019.23 —
Ubuntu 22.04 LTS linux-azure 5.15.0-1019.24 —
Ubuntu 22.04 LTS linux-gcp 5.15.0-1017.23 —
Ubuntu 22.04 LTS linux-gke 5.15.0-1015.18 —
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1002.4 —
Ubuntu 22.04 LTS linux-ibm 5.15.0-1013.15 —
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1015.20 —
Ubuntu 22.04 LTS linux-kvm 5.15.0-1017.21 —
Ubuntu 22.04 LTS linux-lowlatency 5.15.0-47.53 —
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1007.7 —
Ubuntu 22.04 LTS linux-oem-5.17 5.17.0-1013.14 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1017.22 —
Ubuntu 22.04 LTS linux-raspi 5.15.0-1014.16 —
Ubuntu 22.04 LTS linux-riscv +2 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-126.142 —
Ubuntu 20.04 LTS linux-aws 5.4.0-1085.92 —
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1019.23~20.04.1 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1091.96 —
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1019.24~20.04.1 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1046.51 —
Ubuntu 20.04 LTS linux-gcp 5.4.0-1089.97 —
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1017.23~20.04.2 —
Ubuntu 20.04 LTS linux-gke 5.4.0-1083.89 —
Ubuntu 20.04 LTS linux-gke-5.15 5.15.0-1015.18~20.04.1 —
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1053.56 —
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-48.54~20.04.1 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1033.37 —
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1015.20~20.04.2 —
Ubuntu 20.04 LTS linux-iot 5.4.0-1004.6 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1075.80 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1083.91 —
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1017.22~20.04.1 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1070.80 —
Ubuntu 20.04 LTS linux-riscv +23 No fix yet —
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1018.21~20.04.1 —
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1085.92~18.04.1 —
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1091.96~18.04.1 —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 18.04 LTS linux-gcp-5.4 5.4.0-1089.97~18.04.1 —
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-126.142~18.04.1 —
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1033.37~18.04.1 —
Ubuntu 18.04 LTS linux-oracle-5.4 5.4.0-1083.91~18.04.1 —
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1070.80~18.04.1 —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 8 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1020.20 —
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 5.4.0-1085.92+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1091.96+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1061.69 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1089.97+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2106.112 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2085.91 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1122.133 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2069.74 —
Ubuntu Pro 18.04 LTS linux 4.15.0-224.236 USN-6740-1
Ubuntu Pro 18.04 LTS linux-aws 4.15.0-1167.180 USN-6740-1
Ubuntu Pro 18.04 LTS linux-azure-4.15 4.15.0-1176.191 USN-6740-1
Ubuntu Pro 18.04 LTS linux-gcp-4.15 4.15.0-1161.178 USN-6740-1
Ubuntu Pro 18.04 LTS linux-kvm 4.15.0-1151.156 USN-6740-1
Ubuntu Pro 18.04 LTS linux-oracle 4.15.0-1130.141 USN-6740-1
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1167.180~16.04.1 USN-6740-1
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1176.191~16.04.1 USN-6740-1
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1161.178~16.04.1 USN-6740-1
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-224.236~16.04.1 USN-6740-1
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1130.141~16.04.1 USN-6740-1
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1176.191~14.04.1 USN-6740-1
ReleasePackageFixed inAdvisory
RHEL 9 bpftool 7.2.0-362.8.1.el9_3 RHSA-2023:6583
RHEL 9 rv +64 5.14.0-362.8.1.el9_3 RHSA-2023:6583
RHEL 8 kernel-rt +12 4.18.0-513.18.1.rt7.320.el8_9 RHSA-2024:0881
RHEL 8 perf +26 4.18.0-513.18.1.el8_9 RHSA-2024:0897
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Red Hat Rhev Hypervisor 4 perf +2 4.18.0-372.87.1.el8_6 RHSA-2024:0412
RHEL 8.8 EUS perf +26 4.18.0-477.43.1.el8_8 RHSA-2024:0575
RHEL 8.6 EUS perf +26 4.18.0-372.87.1.el8_6 RHSA-2024:0412

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 8 perf +23 4.18.0-513.18.1.el8_9 ALSA-2024:0897
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.7.1 SUSE-SU-2023:2871-1
SLES 15 SP5 kernel-azure +2 5.14.21-150500.33.3.1 SUSE-SU-2023:2646-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.7.1.150500.6.2.5 SUSE-SU-2023:2871-1
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.60.1 SUSE-SU-2023:1897-1
SLES 15 SP4 kernel-azure +2 5.14.21-150400.14.46.1 SUSE-SU-2023:1895-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.60.1.150400.24.24.3 SUSE-SU-2023:1897-1
SLES 15 SP3 kernel-64kb +6 5.3.18-150300.59.121.2 SUSE-SU-2023:2148-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.121.2.150300.18.70.2 SUSE-SU-2023:2148-1
SLES 15 SP3 kernel-syms 5.3.18-150300.59.121.1 SUSE-SU-2023:2148-1
SLES 15 SP2 kernel-default-base 5.3.18-150200.24.151.1.150200.9.73.1 SUSE-SU-2023:2146-1
SLES 15 SP2 kernel-docs +5 5.3.18-150200.24.151.1 SUSE-SU-2023:2146-1
Show 20 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP3 kernel-default-base 5.3.18-150300.59.121.2.150300.18.70.2 SUSE-SU-2023:2148-1
SLES for SAP 15 SP3 kernel-docs +4 5.3.18-150300.59.121.2 SUSE-SU-2023:2148-1
SLES for SAP 15 SP3 kernel-syms 5.3.18-150300.59.121.1 SUSE-SU-2023:2148-1
SLES for SAP 15 SP2 kernel-default-base 5.3.18-150200.24.151.1.150200.9.73.1 SUSE-SU-2023:2146-1
SLES for SAP 15 SP2 kernel-docs +5 5.3.18-150200.24.151.1 SUSE-SU-2023:2146-1
SLE Real Time 15 SP3 kernel-default-base 5.3.18-150300.59.121.2.150300.18.70.2 SUSE-SU-2023:2148-1
SLE Real Time 15 SP3 kernel-docs +4 5.3.18-150300.59.121.2 SUSE-SU-2023:2148-1
SLE Real Time 15 SP3 kernel-syms 5.3.18-150300.59.121.1 SUSE-SU-2023:2148-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.60.1 SUSE-SU-2023:1897-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.60.1.150400.24.24.3 SUSE-SU-2023:1897-1
SLE Micro 5.4 kernel-rt 5.14.21-150400.15.23.1 SUSE-SU-2023:1992-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.60.1 SUSE-SU-2023:1897-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.60.1.150400.24.24.3 SUSE-SU-2023:1897-1
SLE Micro 5.3 kernel-rt 5.14.21-150400.15.23.1 SUSE-SU-2023:1992-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.121.2 SUSE-SU-2023:2148-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.121.2.150300.18.70.2 SUSE-SU-2023:2148-1
SLE Micro 5.2 kernel-rt 5.3.18-150300.127.1 SUSE-SU-2023:2147-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.121.2 SUSE-SU-2023:2148-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.121.2.150300.18.70.2 SUSE-SU-2023:2148-1
SLE Micro 5.1 kernel-rt 5.3.18-150300.127.1 SUSE-SU-2023:2147-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.7.1 SUSE-SU-2023:2871-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5-RT_Update_1 1-150500.11.5.1 SUSE-SU-2023:2809-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_1 1-150500.11.7.1 SUSE-SU-2023:2871-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.60.1 SUSE-SU-2023:1897-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4-RT_Update_6 1-150400.1.3.3 SUSE-SU-2023:1992-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_11 1-150400.9.3.2 SUSE-SU-2023:1897-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.121.2 SUSE-SU-2023:2148-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_32 1-150300.7.3.2 SUSE-SU-2023:2148-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-150200.24.151.1 SUSE-SU-2023:2146-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_36 1-150200.5.3.1 SUSE-SU-2023:2146-1
SLE HPC 15 SP3 kernel-64kb +5 5.3.18-150300.59.121.2 SUSE-SU-2023:2148-1
SLE HPC 15 SP3 kernel-default-base 5.3.18-150300.59.121.2.150300.18.70.2 SUSE-SU-2023:2148-1
SLE HPC 15 SP3 kernel-syms 5.3.18-150300.59.121.1 SUSE-SU-2023:2148-1
SLE HPC 15 SP2 kernel-default-base 5.3.18-150200.24.151.1.150200.9.73.1 SUSE-SU-2023:2146-1
SLE HPC 15 SP2 kernel-docs +5 5.3.18-150200.24.151.1 SUSE-SU-2023:2146-1
SUSE Real Time Module 15 SP5 kernel-rt +3 5.14.21-150500.13.5.1 SUSE-SU-2023:2809-1
SUSE Real Time Module 15 SP4 kernel-rt +3 5.14.21-150400.15.23.1 SUSE-SU-2023:1992-1
SUSE Real Time Module 15 SP3 kernel-rt +3 5.3.18-150300.127.1 SUSE-SU-2023:2147-1
SUSE Manager Server 4.2 kernel-default-base 5.3.18-150300.59.121.2.150300.18.70.2 SUSE-SU-2023:2148-1
SUSE Manager Server 4.2 kernel-source +3 5.3.18-150300.59.121.2 SUSE-SU-2023:2148-1
SUSE Manager Proxy 4.2 kernel-default-base 5.3.18-150300.59.121.2.150300.18.70.2 SUSE-SU-2023:2148-1
SUSE Manager Proxy 4.2 kernel-source +2 5.3.18-150300.59.121.2 SUSE-SU-2023:2148-1
SUSE Enterprise Storage 7.1 kernel-64kb +5 5.3.18-150300.59.121.2 SUSE-SU-2023:2148-1
SUSE Enterprise Storage 7.1 kernel-default-base 5.3.18-150300.59.121.2.150300.18.70.2 SUSE-SU-2023:2148-1
SUSE Enterprise Storage 7.1 kernel-syms 5.3.18-150300.59.121.1 SUSE-SU-2023:2148-1
SUSE Enterprise Storage 7 kernel-default-base 5.3.18-150200.24.151.1.150200.9.73.1 SUSE-SU-2023:2146-1
SUSE Enterprise Storage 7 kernel-docs +5 5.3.18-150200.24.151.1 SUSE-SU-2023:2146-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.5 dtb-aarch64 +10 5.14.21-150500.55.7.1 SUSE-SU-2023:2871-1
openSUSE Leap 15.5 kernel-azure +2 5.14.21-150500.33.3.1 SUSE-SU-2023:2646-1
openSUSE Leap 15.5 kernel-default-base 5.14.21-150500.55.7.1.150500.6.2.5 SUSE-SU-2023:2871-1
openSUSE Leap 15.5 kernel-rt +3 5.14.21-150500.13.5.1 SUSE-SU-2023:2809-1
openSUSE Leap 15.4 dtb-aarch64 5.3.18-150300.59.121.1 SUSE-SU-2023:2148-1, SUSE-SU-2023:1897-1
openSUSE Leap 15.4 kernel-64kb +9 5.14.21-150400.24.60.1 SUSE-SU-2023:1897-1
openSUSE Leap 15.4 kernel-azure +2 5.14.21-150400.14.46.1 SUSE-SU-2023:1895-1
openSUSE Leap 15.4 kernel-default-base 5.14.21-150400.24.60.1.150400.24.24.3 SUSE-SU-2023:1897-1
openSUSE Leap 15.4 kernel-rt +3 5.14.21-150400.15.23.1 SUSE-SU-2023:1992-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.3 kernel-default 5.14.21-150400.24.60.1 SUSE-SU-2023:1897-1
openSUSE Leap Micro 5.3 kernel-default-base 5.14.21-150400.24.60.1.150400.24.24.3 SUSE-SU-2023:1897-1
openSUSE Leap Micro 5.3 kernel-rt 5.14.21-150400.15.23.1 SUSE-SU-2023:1992-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2 kernel-livepatch-4.14.313-235.533 1.0-0.amzn2 ALAS2-2023-2027
Amazon Linux 2 perf +8 4.14.313-235.533.amzn2 ALAS2-2023-2027

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) kernel 5.15.107.1-2 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 8 perf +19 4.18.0-513.18.0.1.el8_9 ELSA-2024-12169, ELSA-2024-0897

Advisories 23

References