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