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CVE-2026-52928

Fixed in a distro release EPSS <1%

In the Linux kernel, the following vulnerability has been resolved: af_unix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSG_OOB. In AF_UNIX, MSG_OOB is supported only for SOCK_STREAM sockets. SOCK_DGRAM and SOCK_SEQPACKET reject MSG_OOB in sendmsg() and recvmsg(), so they should not support SIOCATMARK either. Return -EOPNOTSUPP for non-stream sockets before checking the receive queue.

Published 2026-06-24 · CVE record · OSV

Products: Linux, Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Distro releases

ReleasePackageFixed in
Amazon Linux 2023bpftool1:6.1.177-224.371.amzn2023
Amazon Linux 2023bpftool6.121:6.12.88-119.157.amzn2023
Amazon Linux 2023bpftool6.181:6.18.30-61.116.amzn2023
Amazon Linux 2023kernel1:6.1.177-224.371.amzn2023
Amazon Linux 2023kernel-devel1:6.1.177-224.371.amzn2023
Amazon Linux 2023kernel-headers1:6.1.177-224.371.amzn2023
Amazon Linux 2023kernel-livepatch-6.1.177-224.3711:1.0-0.amzn2023
Amazon Linux 2023kernel-livepatch-6.12.88-119.1571:1.0-0.amzn2023
Amazon Linux 2023kernel-livepatch-6.18.30-61.1161:1.0-0.amzn2023
Amazon Linux 2023kernel-modules-extra1:6.1.177-224.371.amzn2023
Amazon Linux 2023kernel-modules-extra-common1:6.1.177-224.371.amzn2023
Amazon Linux 2023kernel-tools1:6.1.177-224.371.amzn2023
Amazon Linux 2023kernel-tools-devel1:6.1.177-224.371.amzn2023
Amazon Linux 2023kernel6.121:6.12.88-119.157.amzn2023
Amazon Linux 2023kernel6.12-devel1:6.12.88-119.157.amzn2023
Amazon Linux 2023kernel6.12-headers1:6.12.88-119.157.amzn2023
Amazon Linux 2023kernel6.12-modules-extra1:6.12.88-119.157.amzn2023
Amazon Linux 2023kernel6.12-modules-extra-common1:6.12.88-119.157.amzn2023
Amazon Linux 2023kernel6.12-tools1:6.12.88-119.157.amzn2023
Amazon Linux 2023kernel6.12-tools-devel1:6.12.88-119.157.amzn2023
Amazon Linux 2023kernel6.181:6.18.30-61.116.amzn2023
Amazon Linux 2023kernel6.18-devel1:6.18.30-61.116.amzn2023
Amazon Linux 2023kernel6.18-headers1:6.18.30-61.116.amzn2023
Amazon Linux 2023kernel6.18-modules-extra1:6.18.30-61.116.amzn2023
Amazon Linux 2023kernel6.18-modules-extra-common1:6.18.30-61.116.amzn2023
Amazon Linux 2023kernel6.18-tools1:6.18.30-61.116.amzn2023
Amazon Linux 2023kernel6.18-tools-devel1:6.18.30-61.116.amzn2023
Amazon Linux 2023perf1:6.1.177-224.371.amzn2023
Amazon Linux 2023perf6.121:6.12.88-119.157.amzn2023
Amazon Linux 2023perf6.181:6.18.30-61.116.amzn2023
Amazon Linux 2023python3-perf1:6.1.177-224.371.amzn2023
Amazon Linux 2023python3-perf6.121:6.12.88-119.157.amzn2023
Amazon Linux 2023python3-perf6.181:6.18.30-61.116.amzn2023
Debian 12linux6.1.177-1
Debian 13linux6.12.88-1
Debian 14linux7.0.7-1
SUSE Linux Enterprise High Availability Extension 16.0kernel-default6.12.0-160000.38.1
SUSE Linux Enterprise Server 16.0kernel-64kb6.12.0-160000.38.1
SUSE Linux Enterprise Server 16.0kernel-azure6.12.0-160000.38.1
SUSE Linux Enterprise Server 16.0kernel-default6.12.0-160000.38.1
SUSE Linux Enterprise Server 16.0kernel-default-base6.12.0-160000.38.1.160000.2.23
SUSE Linux Enterprise Server 16.0kernel-docs6.12.0-160000.38.1
SUSE Linux Enterprise Server 16.0kernel-kvmsmall6.12.0-160000.38.1
SUSE Linux Enterprise Server 16.0kernel-obs-qa6.12.0-160000.38.1
SUSE Linux Enterprise Server 16.0kernel-source6.12.0-160000.38.1
SUSE Linux Enterprise Server 16.0kernel-syms6.12.0-160000.38.1
SUSE Linux Enterprise Server 16.0kernel-zfcpdump6.12.0-160000.38.1
SUSE Linux Enterprise Server for SAP applications 16.0kernel-64kb6.12.0-160000.38.1
SUSE Linux Enterprise Server for SAP applications 16.0kernel-azure6.12.0-160000.38.1
SUSE Linux Enterprise Server for SAP applications 16.0kernel-default6.12.0-160000.38.1
SUSE Linux Enterprise Server for SAP applications 16.0kernel-default-base6.12.0-160000.38.1.160000.2.23
SUSE Linux Enterprise Server for SAP applications 16.0kernel-docs6.12.0-160000.38.1
SUSE Linux Enterprise Server for SAP applications 16.0kernel-kvmsmall6.12.0-160000.38.1
SUSE Linux Enterprise Server for SAP applications 16.0kernel-obs-qa6.12.0-160000.38.1
SUSE Linux Enterprise Server for SAP applications 16.0kernel-source6.12.0-160000.38.1
SUSE Linux Enterprise Server for SAP applications 16.0kernel-syms6.12.0-160000.38.1
SUSE Linux Enterprise Server for SAP applications 16.0kernel-zfcpdump6.12.0-160000.38.1
SUSE Linux Micro 6.2kernel-64kb6.12.0-160000.38.1
SUSE Linux Micro 6.2kernel-default6.12.0-160000.38.1
SUSE Linux Micro 6.2kernel-default-base6.12.0-160000.38.1.160000.2.23
SUSE Linux Micro 6.2kernel-rt6.12.0-160000.38.1
SUSE Linux Micro 6.2kernel-source6.12.0-160000.38.1
SUSE Linux Micro Extras 6.2kernel-obs-build6.12.0-160000.38.1
SUSE Linux Micro Extras 6.2kernel-syms6.12.0-160000.38.1
Ubuntu 16.04 LTSlinux-hwe-edgeno fix
Ubuntu 18.04 LTSlinux-aws-5.0no fix
Ubuntu 18.04 LTSlinux-aws-5.3no fix
Ubuntu 18.04 LTSlinux-azureno fix
Ubuntu 18.04 LTSlinux-azure-5.3no fix
Ubuntu 18.04 LTSlinux-azure-edgeno fix
Ubuntu 18.04 LTSlinux-gcpno fix
Ubuntu 18.04 LTSlinux-gcp-5.3no fix
Ubuntu 18.04 LTSlinux-gke-4.15no fix
Ubuntu 18.04 LTSlinux-gke-5.4no fix
Ubuntu 18.04 LTSlinux-gkeop-5.4no fix
Ubuntu 18.04 LTSlinux-hweno fix
Ubuntu 18.04 LTSlinux-hwe-edgeno fix
Ubuntu 18.04 LTSlinux-oemno fix
Ubuntu 18.04 LTSlinux-oracle-5.0no fix
Ubuntu 18.04 LTSlinux-oracle-5.3no fix
Ubuntu 20.04 LTSlinux-aws-5.11no fix
Ubuntu 20.04 LTSlinux-aws-5.13no fix
Ubuntu 20.04 LTSlinux-aws-5.8no fix
Ubuntu 20.04 LTSlinux-azure-5.11no fix
Ubuntu 20.04 LTSlinux-azure-5.13no fix
Ubuntu 20.04 LTSlinux-azure-5.8no fix
Ubuntu 20.04 LTSlinux-azure-fdeno fix
Ubuntu 20.04 LTSlinux-gcp-5.11no fix
Ubuntu 20.04 LTSlinux-gcp-5.13no fix
Ubuntu 20.04 LTSlinux-gcp-5.8no fix
Ubuntu 20.04 LTSlinux-gkeno fix
Ubuntu 20.04 LTSlinux-gke-5.15no fix
Ubuntu 20.04 LTSlinux-gkeopno fix
Ubuntu 20.04 LTSlinux-gkeop-5.15no fix
Ubuntu 20.04 LTSlinux-hwe-5.11no fix
Ubuntu 20.04 LTSlinux-hwe-5.13no fix
Ubuntu 20.04 LTSlinux-hwe-5.8no fix
Ubuntu 20.04 LTSlinux-intel-5.13no fix
Ubuntu 20.04 LTSlinux-oem-5.10no fix
Ubuntu 20.04 LTSlinux-oem-5.13no fix
Ubuntu 20.04 LTSlinux-oem-5.14no fix
Ubuntu 20.04 LTSlinux-oem-5.6no fix
Ubuntu 20.04 LTSlinux-oracle-5.11no fix
Ubuntu 20.04 LTSlinux-oracle-5.13no fix
Ubuntu 20.04 LTSlinux-oracle-5.8no fix
Ubuntu 20.04 LTSlinux-raspi2no fix
Ubuntu 20.04 LTSlinux-riscvno fix
Ubuntu 20.04 LTSlinux-riscv-5.11no fix
Ubuntu 20.04 LTSlinux-riscv-5.8no fix
Ubuntu 22.04 LTSlinux5.15.0-198.208
Ubuntu 22.04 LTSlinux-allwinner-5.19no fix
Ubuntu 22.04 LTSlinux-aws5.15.0-1117.124
Ubuntu 22.04 LTSlinux-aws-5.19no fix
Ubuntu 22.04 LTSlinux-aws-6.2no fix
Ubuntu 22.04 LTSlinux-aws-6.5no fix
Ubuntu 22.04 LTSlinux-aws-6.8no fix
Ubuntu 22.04 LTSlinux-azure5.15.0-1123.132
Ubuntu 22.04 LTSlinux-azure-5.19no fix
Ubuntu 22.04 LTSlinux-azure-6.2no fix
Ubuntu 22.04 LTSlinux-azure-6.5no fix
Ubuntu 22.04 LTSlinux-azure-6.8no fix
Ubuntu 22.04 LTSlinux-azure-fde5.15.0-1122.131
Ubuntu 22.04 LTSlinux-azure-fde-5.19no fix
Ubuntu 22.04 LTSlinux-azure-fde-6.2no fix
Ubuntu 22.04 LTSlinux-azure-fde-6.8no fix
Ubuntu 22.04 LTSlinux-gcp5.15.0-1118.128
Ubuntu 22.04 LTSlinux-gcp-5.19no fix
Ubuntu 22.04 LTSlinux-gcp-6.2no fix
Ubuntu 22.04 LTSlinux-gcp-6.5no fix
Ubuntu 22.04 LTSlinux-gcp-6.8no fix
Ubuntu 22.04 LTSlinux-gke5.15.0-1113.119
Ubuntu 22.04 LTSlinux-gkeop5.15.0-1100.108
Ubuntu 22.04 LTSlinux-hwe-5.19no fix
Ubuntu 22.04 LTSlinux-hwe-6.2no fix
Ubuntu 22.04 LTSlinux-hwe-6.5no fix
Ubuntu 22.04 LTSlinux-hwe-6.8no fix
Ubuntu 22.04 LTSlinux-ibm5.15.0-1111.115
Ubuntu 22.04 LTSlinux-ibm-6.8no fix
Ubuntu 22.04 LTSlinux-intel-iot-realtimeno fix
Ubuntu 22.04 LTSlinux-intel-iotg5.15.0-1112.118
Ubuntu 22.04 LTSlinux-kvm5.15.0-1109.114
Ubuntu 22.04 LTSlinux-lowlatency5.15.0-195.205
Ubuntu 22.04 LTSlinux-lowlatency-hwe-5.19no fix
Ubuntu 22.04 LTSlinux-lowlatency-hwe-6.2no fix
Ubuntu 22.04 LTSlinux-lowlatency-hwe-6.5no fix
Ubuntu 22.04 LTSlinux-lowlatency-hwe-6.8no fix
Ubuntu 22.04 LTSlinux-nvidia5.15.0-1112.113
Ubuntu 22.04 LTSlinux-nvidia-6.2no fix
Ubuntu 22.04 LTSlinux-nvidia-6.5no fix
Ubuntu 22.04 LTSlinux-nvidia-6.8no fix
Ubuntu 22.04 LTSlinux-nvidia-tegrano fix
Ubuntu 22.04 LTSlinux-nvidia-tegra-igxno fix
Ubuntu 22.04 LTSlinux-oem-5.17no fix
Ubuntu 22.04 LTSlinux-oem-6.0no fix
Ubuntu 22.04 LTSlinux-oem-6.1no fix
Ubuntu 22.04 LTSlinux-oem-6.5no fix
Ubuntu 22.04 LTSlinux-oracle5.15.0-1114.120
Ubuntu 22.04 LTSlinux-oracle-6.5no fix
Ubuntu 22.04 LTSlinux-oracle-6.8no fix
Ubuntu 22.04 LTSlinux-raspino fix
Ubuntu 22.04 LTSlinux-realtimeno fix
Ubuntu 22.04 LTSlinux-riscvno fix
Ubuntu 22.04 LTSlinux-riscv-5.19no fix
Ubuntu 22.04 LTSlinux-riscv-6.5no fix
Ubuntu 22.04 LTSlinux-riscv-6.8no fix
Ubuntu 22.04 LTSlinux-starfive-5.19no fix
Ubuntu 22.04 LTSlinux-starfive-6.2no fix
Ubuntu 22.04 LTSlinux-starfive-6.5no fix
Ubuntu 22.04 LTSlinux-xilinx-zynqmp5.15.0-1080.84
Ubuntu 24.04 LTSlinux6.8.0-147.147
Ubuntu 24.04 LTSlinux-aws6.8.0-1067.70
Ubuntu 24.04 LTSlinux-aws-6.14no fix
Ubuntu 24.04 LTSlinux-aws-6.17no fix
Ubuntu 24.04 LTSlinux-azure6.8.0-1071.79
Ubuntu 24.04 LTSlinux-azure-6.11no fix
Ubuntu 24.04 LTSlinux-azure-6.14no fix
Ubuntu 24.04 LTSlinux-azure-6.17no fix
Ubuntu 24.04 LTSlinux-azure-7.07.0.0-1014.14~24.04.1
Ubuntu 24.04 LTSlinux-azure-fde6.8.0-1069.76
Ubuntu 24.04 LTSlinux-azure-fde-6.14no fix
Ubuntu 24.04 LTSlinux-azure-fde-6.17no fix
Ubuntu 24.04 LTSlinux-azure-fde-7.07.0.0-1013.13~24.04.1
Ubuntu 24.04 LTSlinux-azure-nvidiano fix
Ubuntu 24.04 LTSlinux-azure-nvidia-6.14no fix
Ubuntu 24.04 LTSlinux-gcp6.8.0-1071.79
Ubuntu 24.04 LTSlinux-gcp-6.11no fix
Ubuntu 24.04 LTSlinux-gcp-6.14no fix
Ubuntu 24.04 LTSlinux-gcp-6.17no fix
Ubuntu 24.04 LTSlinux-gcp-7.07.0.0-1011.11~24.04.1
Ubuntu 24.04 LTSlinux-gke6.8.0-1066.74
Ubuntu 24.04 LTSlinux-gkeop6.8.0-1052.56
Ubuntu 24.04 LTSlinux-hwe-6.11no fix
Ubuntu 24.04 LTSlinux-hwe-6.14no fix
Ubuntu 24.04 LTSlinux-hwe-6.17no fix
Ubuntu 24.04 LTSlinux-hwe-7.07.0.0-28.28~24.04.1
Ubuntu 24.04 LTSlinux-ibm6.8.0-1067.68
Ubuntu 24.04 LTSlinux-lowlatency6.8.0-147.147.1
Ubuntu 24.04 LTSlinux-lowlatency-hwe-6.11no fix
Ubuntu 24.04 LTSlinux-nvidiano fix
Ubuntu 24.04 LTSlinux-nvidia-6.11no fix
Ubuntu 24.04 LTSlinux-nvidia-6.17no fix
Ubuntu 24.04 LTSlinux-nvidia-7.07.0.0-1016.16~24.04.1
Ubuntu 24.04 LTSlinux-nvidia-lowlatencyno fix
Ubuntu 24.04 LTSlinux-nvidia-tegrano fix
Ubuntu 24.04 LTSlinux-oem-6.11no fix
Ubuntu 24.04 LTSlinux-oem-6.14no fix
Ubuntu 24.04 LTSlinux-oem-6.17no fix
Ubuntu 24.04 LTSlinux-oem-6.8no fix
Ubuntu 24.04 LTSlinux-oracle6.8.0-1064.67
Ubuntu 24.04 LTSlinux-oracle-6.14no fix
Ubuntu 24.04 LTSlinux-oracle-6.17no fix
Ubuntu 24.04 LTSlinux-oracle-7.07.0.0-1011.11~24.04.1
Ubuntu 24.04 LTSlinux-raspino fix
Ubuntu 24.04 LTSlinux-raspi-realtimeno fix
Ubuntu 24.04 LTSlinux-realtimeno fix
Ubuntu 24.04 LTSlinux-riscvno fix
Ubuntu 24.04 LTSlinux-riscv-6.14no fix
Ubuntu 24.04 LTSlinux-riscv-6.17no fix
Ubuntu 24.04 LTSlinux-riscv-7.07.0.0-28.28.1~24.04.3
Ubuntu 24.04 LTSlinux-xilinxno fix
Ubuntu 25.10linuxno fix
Ubuntu 25.10linux-awsno fix
Ubuntu 25.10linux-azureno fix
Ubuntu 25.10linux-azure-fdeno fix
Ubuntu 25.10linux-gcpno fix
Ubuntu 25.10linux-oracleno fix
Ubuntu 25.10linux-raspino fix
Ubuntu 25.10linux-realtimeno fix
Ubuntu 25.10linux-riscvno fix
Ubuntu 26.04 LTSlinux7.0.0-28.28
Ubuntu 26.04 LTSlinux-aws7.0.0-1009.9
Ubuntu 26.04 LTSlinux-azure7.0.0-1010.10
Ubuntu 26.04 LTSlinux-azure-fde7.0.0-1009.9
Ubuntu 26.04 LTSlinux-gcp7.0.0-1008.8
Ubuntu 26.04 LTSlinux-gke7.0.0-1003.4
Ubuntu 26.04 LTSlinux-ibm7.0.0-1010.10
Ubuntu 26.04 LTSlinux-nvidia7.0.0-1016.16
Ubuntu 26.04 LTSlinux-nvidia-bos7.0.0-2016.16
Ubuntu 26.04 LTSlinux-oem-7.07.0.0-1009.9
Ubuntu 26.04 LTSlinux-oracle7.0.0-1008.8
Ubuntu 26.04 LTSlinux-raspi7.0.0-1015.15
Ubuntu 26.04 LTSlinux-realtime7.0.0-28.28.1
Ubuntu 26.04 LTSlinux-riscv7.0.0-28.28.1
Ubuntu Nvidia-BlueField 22.04 LTSlinux-bluefield5.15.0-1101.103
Ubuntu Nvidia-BlueField 24.04 LTSlinux-bluefield6.8.0-1033.38
Ubuntu Pro 20.04 LTSlinux-aws-5.155.15.0-1117.124~20.04.1
Ubuntu Pro 20.04 LTSlinux-azure-5.155.15.0-1123.132~20.04.1
Ubuntu Pro 20.04 LTSlinux-azure-fde-5.155.15.0-1122.131~20.04.1
Ubuntu Pro 20.04 LTSlinux-gcp-5.155.15.0-1118.128~20.04.1
Ubuntu Pro 20.04 LTSlinux-hwe-5.155.15.0-198.208~20.04.1
Ubuntu Pro 20.04 LTSlinux-ibm-5.155.15.0-1111.115~20.04.1
Ubuntu Pro 20.04 LTSlinux-intel-iotg-5.155.15.0-1112.118~20.04.1
Ubuntu Pro 20.04 LTSlinux-lowlatency-hwe-5.155.15.0-195.205~20.04.1
Ubuntu Pro 20.04 LTSlinux-nvidia-tegra-5.15no fix
Ubuntu Pro 20.04 LTSlinux-oracle-5.155.15.0-1114.120~20.04.1
Ubuntu Pro 20.04 LTSlinux-riscv-5.155.15.0-1111.115~20.04.1
Ubuntu Pro FIPS-preview 22.04 LTSlinux-aws-fipsno fix
Ubuntu Pro FIPS-preview 22.04 LTSlinux-azure-fipsno fix
Ubuntu Pro FIPS-preview 22.04 LTSlinux-fipsno fix
Ubuntu Pro FIPS-preview 22.04 LTSlinux-gcp-fipsno fix
Ubuntu Pro FIPS-updates 22.04 LTSlinux-aws-fips5.15.0-1117.124+fips1
Ubuntu Pro FIPS-updates 22.04 LTSlinux-azure-fips5.15.0-1123.132+fips1
Ubuntu Pro FIPS-updates 22.04 LTSlinux-fips5.15.0-198.208+fips1
Ubuntu Pro FIPS-updates 22.04 LTSlinux-gcp-fips5.15.0-1118.128+fips1
Ubuntu Pro FIPS-updates 24.04 LTSlinux-aws-fips6.8.0-1067.70+fips1
Ubuntu Pro FIPS-updates 24.04 LTSlinux-azure-fips6.8.0-1071.79+fips1
Ubuntu Pro FIPS-updates 24.04 LTSlinux-fips6.8.0-147.147+fips1
Ubuntu Pro FIPS-updates 24.04 LTSlinux-gcp-fips6.8.0-1071.79+fips1
Ubuntu Pro Realtime 22.04 LTSlinux-intel-iot-realtime5.15.0-1109.111
Ubuntu Pro Realtime 22.04 LTSlinux-realtime5.15.0-1116.125
Ubuntu Pro Realtime 22.04 LTSlinux-realtime-6.8no fix
Ubuntu Pro Realtime 24.04 LTSlinux-raspi-realtimeno fix
Ubuntu Pro Realtime 24.04 LTSlinux-realtime6.8.1-1062.63
Ubuntu Pro Realtime 24.04 LTSlinux-realtime-6.14no fix
Ubuntu Pro Realtime 24.04 LTSlinux-realtime-6.17no fix
openSUSE Leap 16.0dtb-aarch646.12.0-160000.38.1
openSUSE Leap 16.0kernel-64kb6.12.0-160000.38.1
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openSUSE Leap 16.0kernel-default6.12.0-160000.38.1
openSUSE Leap 16.0kernel-default-base6.12.0-160000.38.1.160000.2.22
openSUSE Leap 16.0kernel-docs6.12.0-160000.38.1
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openSUSE Leap 16.0kernel-obs-build6.12.0-160000.38.1
openSUSE Leap 16.0kernel-obs-qa6.12.0-160000.38.1
openSUSE Leap 16.0kernel-rt6.12.0-160000.38.1
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openSUSE Leap 16.0kernel-syms6.12.0-160000.38.1
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