In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_set_rbtree: fix overlap expiration walk
The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any.
Can be reproduced with tests/shell/testcases/sets/0044interval_overlap_0 in nftables.git and kmemleak enabled kernel.
Second bug is the use of rbe_prev vs. prev pointer. If rbe_prev() returns NULL after at least one iteration, rbe_prev points to element that is not an end interval, hence it should not be removed.
Lastly, check the genmask of the end interval if this is active in the current generation.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-develUpgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernelUpgrade kernel-tools-develUpgrade kernel-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-headersUpgrade bpftoolUpgrade perf-debuginfoUpgrade python-perfUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade kernel-livepatch-5.15.128-80.144Upgrade kernel-livepatch-5.10.192-182.736 | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade bpftoolUpgrade kernel-libbpf-staticUpgrade kernel-tools-develUpgrade kernel-develUpgrade python3-perf-debuginfoUpgrade kernel-libbpfUpgrade kernel-toolsUpgrade kernel-livepatch-6.1.49-69.116Upgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade python3-perfUpgrade perf-debuginfoUpgrade kernel-libbpf-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernel | Oct 16, 2025 | Sep 16, 2025 |
| Debian | — | Upgrade linux | Sep 18, 2025 | Sep 18, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-toolsUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernelUpgrade bpftoolUpgrade kernel-abi-stablelists | Mar 10, 2026 | Mar 10, 2026 |
| Ubuntu | — | Upgrade linux-gcp-5.15Upgrade linux-hwe-5.15Upgrade linux-nvidiaUpgrade linux-oracleUpgrade linux-kvmUpgrade linux-oracle-5.15Upgrade linux-azureUpgrade linux-raspiUpgrade linux-azure-5.15Upgrade linux-ibmUpgrade linux-xilinx-zynqmpUpgrade linux-intel-iotgUpgrade linux-gkeopUpgrade linux-realtimeUpgrade linux-intel-iotg-5.15Upgrade linux-aws-5.15Upgrade linux-nvidia-tegra-igxUpgrade linux-nvidia-tegra-5.15Upgrade linux-nvidia-tegraUpgrade linuxUpgrade linux-awsUpgrade linux-bluefieldUpgrade linux-riscv-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-lowlatencyUpgrade linux-gkeUpgrade linux-gcpUpgrade linux-ibm-5.15 | Sep 19, 2025 | Sep 17, 2025 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub