CVE-2026-31612
Fixed in a distro release EPSS <1%CVSS 7.5
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate EaNameLength in smb2_get_ea() smb2_get_ea() reads ea_req->EaNameLength from the client request and passes it directly to strncmp() as the comparison length without verifying that the length of the name really is the size of the input buffer received. Fix this up by properly checking the size of the name based on the value received and the overall size of the request, to prevent a later strncmp() call to use the length as a "trusted" size of the buffer. Without this check, uninitialized heap values might be slowly leaked to the client.
Products: Linux, Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | linux-aws-6.18 | 6.18.31-r0 |
| Chainguard | linux-azure-6.18 | 6.18.31-r0 |
| Chainguard | linux-gcp-6.18 | 6.18.31-r0 |
| Chainguard | linux-qemu-6.12 | 6.12.85-r0 |
| Chainguard | linux-qemu-6.18 | 6.18.31-r0 |
| Chainguard | linux-qemu-6.18-bootc-boot-installed | 6.18.31-r0 |
| Chainguard | linux-vmware-6.12 | 6.12.85-r0 |
| Chainguard | linux-vmware-6.18 | 6.18.31-r0 |
| Debian 12 | linux | 6.1.176-1 |
| Debian 13 | linux | 6.12.85-1 |
| Debian 14 | linux | 6.19.14-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | no fix |
| Ubuntu 18.04 LTS | linux-aws-5.0 | no fix |
| Ubuntu 18.04 LTS | linux-aws-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-azure | no fix |
| Ubuntu 18.04 LTS | linux-azure-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-azure-edge | no fix |
| Ubuntu 18.04 LTS | linux-gcp | no fix |
| Ubuntu 18.04 LTS | linux-gcp-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-gke-4.15 | no fix |
| Ubuntu 18.04 LTS | linux-gke-5.4 | no fix |
| Ubuntu 18.04 LTS | linux-gkeop-5.4 | no fix |
| Ubuntu 18.04 LTS | linux-hwe | no fix |
| Ubuntu 18.04 LTS | linux-hwe-edge | no fix |
| Ubuntu 18.04 LTS | linux-oem | no fix |
| Ubuntu 18.04 LTS | linux-oracle-5.0 | no fix |
| Ubuntu 18.04 LTS | linux-oracle-5.3 | no fix |
| Ubuntu 20.04 LTS | linux-aws-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-aws-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-aws-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-azure-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-azure-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-azure-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-azure-fde | no fix |
| Ubuntu 20.04 LTS | linux-gcp-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-gcp-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-gcp-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-gke | no fix |
| Ubuntu 20.04 LTS | linux-gke-5.15 | no fix |
| Ubuntu 20.04 LTS | linux-gkeop | no fix |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | no fix |
| Ubuntu 20.04 LTS | linux-hwe-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-hwe-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-hwe-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-intel-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.10 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.14 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.6 | no fix |
| Ubuntu 20.04 LTS | linux-oracle-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-oracle-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-oracle-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-raspi2 | no fix |
| Ubuntu 20.04 LTS | linux-riscv | no fix |
| Ubuntu 20.04 LTS | linux-riscv-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-riscv-5.8 | no fix |
| Ubuntu 22.04 LTS | linux | no fix |
| Ubuntu 22.04 LTS | linux-allwinner-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-aws | no fix |
| Ubuntu 22.04 LTS | linux-aws-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-aws-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-aws-6.5 | no fix |
| Ubuntu 22.04 LTS | linux-aws-6.8 | 6.8.0-1061.64~22.04.1 |
| Ubuntu 22.04 LTS | linux-azure | no fix |
| Ubuntu 22.04 LTS | linux-azure-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-azure-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-azure-6.5 | no fix |
| Ubuntu 22.04 LTS | linux-azure-6.8 | 6.8.0-1063.71~22.04.1 |
| Ubuntu 22.04 LTS | linux-azure-fde | no fix |
| Ubuntu 22.04 LTS | linux-azure-fde-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-azure-fde-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-azure-fde-6.8 | 6.8.0-1062.69~22.04.1 |
| Ubuntu 22.04 LTS | linux-gcp | no fix |
| Ubuntu 22.04 LTS | linux-gcp-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-gcp-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-gcp-6.5 | no fix |
| Ubuntu 22.04 LTS | linux-gcp-6.8 | 6.8.0-1064.72~22.04.1 |
| Ubuntu 22.04 LTS | linux-gke | no fix |
| Ubuntu 22.04 LTS | linux-gkeop | no fix |
| Ubuntu 22.04 LTS | linux-hwe-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-hwe-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-hwe-6.5 | no fix |
| Ubuntu 22.04 LTS | linux-hwe-6.8 | 6.8.0-136.136~22.04.1 |
| Ubuntu 22.04 LTS | linux-ibm | no fix |
| Ubuntu 22.04 LTS | linux-ibm-6.8 | 6.8.0-1061.62~22.04.1 |
| Ubuntu 22.04 LTS | linux-intel-iot-realtime | no fix |
| Ubuntu 22.04 LTS | linux-intel-iotg | no fix |
| Ubuntu 22.04 LTS | linux-kvm | no fix |
| Ubuntu 22.04 LTS | linux-lowlatency | no fix |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.5 | no fix |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.8 | 6.8.0-136.136.2~22.04.1 |
| Ubuntu 22.04 LTS | linux-nvidia | no fix |
| Ubuntu 22.04 LTS | linux-nvidia-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-nvidia-6.5 | no fix |
| Ubuntu 22.04 LTS | linux-nvidia-6.8 | 6.8.0-1059.62~22.04.1 |
| Ubuntu 22.04 LTS | linux-nvidia-tegra | no fix |
| Ubuntu 22.04 LTS | linux-nvidia-tegra-igx | no fix |
| Ubuntu 22.04 LTS | linux-oem-5.17 | no fix |
| Ubuntu 22.04 LTS | linux-oem-6.0 | no fix |
| Ubuntu 22.04 LTS | linux-oem-6.1 | no fix |
| Ubuntu 22.04 LTS | linux-oem-6.5 | no fix |
| Ubuntu 22.04 LTS | linux-oracle | no fix |
| Ubuntu 22.04 LTS | linux-oracle-6.5 | no fix |
| Ubuntu 22.04 LTS | linux-oracle-6.8 | 6.8.0-1058.61~22.04.1 |
| Ubuntu 22.04 LTS | linux-raspi | no fix |
| Ubuntu 22.04 LTS | linux-realtime | no fix |
| Ubuntu 22.04 LTS | linux-riscv | no fix |
| Ubuntu 22.04 LTS | linux-riscv-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-riscv-6.5 | no fix |
| Ubuntu 22.04 LTS | linux-riscv-6.8 | 6.8.0-136.136~22.04.3 |
| Ubuntu 22.04 LTS | linux-starfive-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-starfive-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-starfive-6.5 | no fix |
| Ubuntu 22.04 LTS | linux-xilinx-zynqmp | no fix |
| Ubuntu 24.04 LTS | linux | 6.8.0-136.136 |
| Ubuntu 24.04 LTS | linux-aws | 6.8.0-1061.64 |
| Ubuntu 24.04 LTS | linux-aws-6.14 | no fix |
| Ubuntu 24.04 LTS | linux-aws-6.17 | no fix |
| Ubuntu 24.04 LTS | linux-azure | 6.8.0-1063.71 |
| Ubuntu 24.04 LTS | linux-azure-6.11 | no fix |
| Ubuntu 24.04 LTS | linux-azure-6.14 | no fix |
| Ubuntu 24.04 LTS | linux-azure-6.17 | no fix |
| Ubuntu 24.04 LTS | linux-azure-fde | 6.8.0-1062.69 |
| Ubuntu 24.04 LTS | linux-azure-fde-6.14 | no fix |
| Ubuntu 24.04 LTS | linux-azure-nvidia | no fix |
| Ubuntu 24.04 LTS | linux-azure-nvidia-6.14 | no fix |
| Ubuntu 24.04 LTS | linux-gcp | 6.8.0-1064.72 |
| Ubuntu 24.04 LTS | linux-gcp-6.11 | no fix |
| Ubuntu 24.04 LTS | linux-gcp-6.14 | no fix |
| Ubuntu 24.04 LTS | linux-gcp-6.17 | no fix |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1059.67 |
| Ubuntu 24.04 LTS | linux-gkeop | 6.8.0-1046.50 |
| Ubuntu 24.04 LTS | linux-hwe-6.11 | no fix |
| Ubuntu 24.04 LTS | linux-hwe-6.14 | no fix |
| Ubuntu 24.04 LTS | linux-hwe-6.17 | no fix |
| Ubuntu 24.04 LTS | linux-hwe-7.0 | 7.0.0-28.28~24.04.1 |
| Ubuntu 24.04 LTS | linux-ibm | 6.8.0-1061.62 |
| Ubuntu 24.04 LTS | linux-lowlatency | 6.8.0-136.136.2 |
| Ubuntu 24.04 LTS | linux-lowlatency-hwe-6.11 | no fix |
| Ubuntu 24.04 LTS | linux-nvidia | 6.8.0-1059.62 |
| Ubuntu 24.04 LTS | linux-nvidia-6.11 | no fix |
| Ubuntu 24.04 LTS | linux-nvidia-6.17 | no fix |
| Ubuntu 24.04 LTS | linux-nvidia-lowlatency | 6.8.0-1059.62.1 |
| Ubuntu 24.04 LTS | linux-nvidia-tegra | 6.8.0-1030.31 |
| Ubuntu 24.04 LTS | linux-oem-6.11 | no fix |
| Ubuntu 24.04 LTS | linux-oem-6.14 | no fix |
| Ubuntu 24.04 LTS | linux-oem-6.17 | no fix |
| Ubuntu 24.04 LTS | linux-oem-6.8 | no fix |
| Ubuntu 24.04 LTS | linux-oracle | 6.8.0-1058.61 |
| Ubuntu 24.04 LTS | linux-oracle-6.14 | no fix |
| Ubuntu 24.04 LTS | linux-oracle-6.17 | no fix |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1061.65 |
| Ubuntu 24.04 LTS | linux-raspi-realtime | no fix |
| Ubuntu 24.04 LTS | linux-realtime | no fix |
| Ubuntu 24.04 LTS | linux-riscv | no fix |
| Ubuntu 24.04 LTS | linux-riscv-6.14 | no fix |
| Ubuntu 24.04 LTS | linux-riscv-6.17 | no fix |
| Ubuntu 24.04 LTS | linux-xilinx | 6.8.0-1033.34 |
| Ubuntu 25.10 | linux | no fix |
| Ubuntu 25.10 | linux-aws | no fix |
| Ubuntu 25.10 | linux-azure | no fix |
| Ubuntu 25.10 | linux-azure-fde | no fix |
| Ubuntu 25.10 | linux-gcp | no fix |
| Ubuntu 25.10 | linux-oracle | no fix |
| Ubuntu 25.10 | linux-raspi | no fix |
| Ubuntu 25.10 | linux-realtime | no fix |
| Ubuntu 25.10 | linux-riscv | no fix |
| Ubuntu 26.04 LTS | linux | 7.0.0-27.27 |
| Ubuntu 26.04 LTS | linux-aws | 7.0.0-1008.8 |
| Ubuntu 26.04 LTS | linux-azure | 7.0.0-1010.10 |
| Ubuntu 26.04 LTS | linux-azure-fde | 7.0.0-1009.9 |
| Ubuntu 26.04 LTS | linux-gcp | 7.0.0-1007.7 |
| Ubuntu 26.04 LTS | linux-ibm | 7.0.0-1009.9 |
| Ubuntu 26.04 LTS | linux-nvidia | 7.0.0-1013.13 |
| Ubuntu 26.04 LTS | linux-oracle | 7.0.0-1007.7 |
| Ubuntu 26.04 LTS | linux-raspi | 7.0.0-1014.14 |
| Ubuntu 26.04 LTS | linux-realtime | 7.0.0-27.27.1 |
| Ubuntu 26.04 LTS | linux-riscv | 7.0.0-27.27.1 |
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | no fix |
| Ubuntu Nvidia-BlueField 24.04 LTS | linux-bluefield | 6.8.0-1028.33 |
| Ubuntu Pro 20.04 LTS | linux-aws-5.15 | no fix |
| Ubuntu Pro 20.04 LTS | linux-azure-5.15 | no fix |
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | no fix |
| Ubuntu Pro 20.04 LTS | linux-gcp-5.15 | no fix |
| Ubuntu Pro 20.04 LTS | linux-hwe-5.15 | no fix |
| Ubuntu Pro 20.04 LTS | linux-ibm-5.15 | no fix |
| Ubuntu Pro 20.04 LTS | linux-intel-iotg-5.15 | no fix |
| Ubuntu Pro 20.04 LTS | linux-lowlatency-hwe-5.15 | no fix |
| Ubuntu Pro 20.04 LTS | linux-nvidia-tegra-5.15 | no fix |
| Ubuntu Pro 20.04 LTS | linux-oracle-5.15 | no fix |
| Ubuntu Pro 20.04 LTS | linux-riscv-5.15 | no fix |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-aws-fips | no fix |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-azure-fips | no fix |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips | no fix |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-gcp-fips | no fix |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-aws-fips | no fix |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-azure-fips | no fix |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-fips | no fix |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-gcp-fips | no fix |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-aws-fips | 6.8.0-1061.64+fips1 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-azure-fips | 6.8.0-1063.71+fips2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips | 6.8.0-136.136+fips2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-gcp-fips | 6.8.0-1064.72+fips1 |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | no fix |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | no fix |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime-6.8 | 6.8.1-1056.57~22.04.2 |
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2050.52 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1056.57 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime-6.14 | no fix |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime-6.17 | no fix |
| openSUSE Tumbleweed | kernel-source | 7.0.3-1.1 |