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 bpftool-debuginfoUpgrade kernel-livepatch-5.10.192-182.736Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade python-perfUpgrade perf-debuginfoUpgrade bpftoolUpgrade kernel-livepatch-5.15.128-80.144Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-develUpgrade kernel-headersUpgrade kernel-debuginfoUpgrade kernel-develUpgrade python-perf-debuginfoUpgrade perfUpgrade kernelUpgrade kernel-tools-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade kernel-libbpfUpgrade kernel-libbpf-staticUpgrade kernel-debuginfoUpgrade perfUpgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade kernel-toolsUpgrade kernel-livepatch-6.1.49-69.116Upgrade bpftool-debuginfoUpgrade kernel-develUpgrade python3-perf-debuginfoUpgrade python3-perfUpgrade kernelUpgrade kernel-libbpf-develUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade perf-debuginfo | Oct 16, 2025 | Sep 16, 2025 |
| Debian | — | Upgrade linux | Sep 18, 2025 | Sep 18, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-abi-stablelists | Mar 10, 2026 | Mar 10, 2026 |
| Ubuntu | — | Upgrade linux-intel-iotgUpgrade linux-nvidiaUpgrade linux-gkeopUpgrade linux-ibmUpgrade linux-realtimeUpgrade linux-xilinx-zynqmpUpgrade linux-intel-iotg-5.15Upgrade linux-azure-5.15Upgrade linux-azureUpgrade linux-oracle-5.15Upgrade linux-raspiUpgrade linux-oracleUpgrade linux-gcp-5.15Upgrade linux-kvmUpgrade linux-hwe-5.15Upgrade linuxUpgrade linux-nvidia-tegra-5.15Upgrade linux-ibm-5.15Upgrade linux-nvidia-tegra-igxUpgrade linux-lowlatency-hwe-5.15Upgrade linux-riscv-5.15Upgrade linux-lowlatencyUpgrade linux-intel-iot-realtimeUpgrade linux-gkeUpgrade linux-bluefieldUpgrade linux-aws-5.15Upgrade linux-awsUpgrade linux-gcpUpgrade linux-nvidia-tegra | Sep 19, 2025 | Sep 17, 2025 |
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