In the Linux kernel, the following vulnerability has been resolved:
netlink: prevent potential spectre v1 gadgets
Most netlink attributes are parsed and validated from __nla_validate_parse() or validate_nla()
u16 type = nla_type(nla);
if (type == 0 || type > maxtype) { /* error or continue */ }
@type is then used as an array index and can be used as a Spectre v1 gadget.
array_index_nospec() can be used to prevent leaking content of kernel memory to malicious users.
This should take care of vast majority of netlink uses, but an audit is needed to take care of others where validation is not yet centralized in core netlink functions.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade kernel-headersUpgrade kernel-livepatch-5.15.93-55.139Upgrade python-perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade python-perfUpgrade kernel-toolsUpgrade kernel-livepatch-5.10.167-147.601Upgrade kernel-debuginfoUpgrade kernelUpgrade kernel-tools-develUpgrade bpftoolUpgrade kernel-debuginfo-common-x86_64 | May 22, 2025 | Mar 27, 2025 |
| Debian | — | Upgrade linux | Mar 31, 2025 | Mar 27, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernelUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Jul 1, 2025 | Mar 27, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Mar 27, 2025 |
| Ubuntu | — | Upgrade linux-awsUpgrade linux-gkeUpgrade linux-raspiUpgrade linux-gcp-5.15Upgrade linux-aws-5.4Upgrade linux-oracle-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-lowlatencyUpgrade linux-kvmUpgrade linux-azureUpgrade linux-lowlatency-hwe-5.15Upgrade linux-iotUpgrade linux-raspi-5.4Upgrade linux-hwe-5.15Upgrade linux-realtimeUpgrade linux-intel-iotgUpgrade linux-nvidia-tegra-5.15Upgrade linux-bluefieldUpgrade linux-aws-5.15Upgrade linux-aws-fipsUpgrade linux-ibmUpgrade linux-azure-fipsUpgrade linux-gkeopUpgrade linux-gcpUpgrade linux-intel-iot-realtimeUpgrade linux-gcp-fipsUpgrade linux-oracleUpgrade linux-ibm-5.4Upgrade linux-gcp-5.4Upgrade linux-nvidiaUpgrade linux-oracle-5.15Upgrade linux-riscv-5.15Upgrade linux-hwe-5.4Upgrade linux-fipsUpgrade linux-azure-5.15Upgrade linuxUpgrade linux-azure-5.4Upgrade linux-xilinx-zynqmp | Apr 1, 2025 | Mar 27, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Mar 27, 2025 |
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