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 perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfoUpgrade kernel-develUpgrade kernel-livepatch-5.10.167-147.601Upgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.15.93-55.139Upgrade python-perfUpgrade kernel-headersUpgrade kernel-toolsUpgrade python-perf-debuginfoUpgrade bpftool-debuginfoUpgrade perf-debuginfoUpgrade kernel-tools-develUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool | May 22, 2025 | Mar 27, 2025 |
| Debian | — | Upgrade linux | Mar 31, 2025 | Mar 27, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade kernelUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernel-abi-stablelists | Jul 1, 2025 | Mar 27, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Mar 27, 2025 |
| Ubuntu | — | Upgrade linux-ibmUpgrade linux-gkeopUpgrade linux-aws-fipsUpgrade linux-hwe-5.4Upgrade linux-azure-5.15Upgrade linux-fipsUpgrade linux-riscv-5.15Upgrade linux-gcpUpgrade linux-intel-iot-realtimeUpgrade linuxUpgrade linux-gcp-5.4Upgrade linux-ibm-5.4Upgrade linux-azure-5.4Upgrade linux-nvidiaUpgrade linux-oracleUpgrade linux-azure-fipsUpgrade linux-gcp-fipsUpgrade linux-oracle-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-raspiUpgrade linux-intel-iotgUpgrade linux-azureUpgrade linux-lowlatency-hwe-5.15Upgrade linux-iotUpgrade linux-kvmUpgrade linux-awsUpgrade linux-raspi-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-aws-5.4Upgrade linux-hwe-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linux-bluefieldUpgrade linux-lowlatencyUpgrade linux-gkeUpgrade linux-gcp-5.15Upgrade linux-realtimeUpgrade linux-aws-5.15Upgrade linux-oracle-5.4 | 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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