In the Linux kernel, the following vulnerability has been resolved:
net: shaper: reject duplicate leaves in GROUP request
net_shaper_nl_group_doit() does not deduplicate NET_SHAPER_A_LEAVES entries. When userspace supplies the same leaf handle twice, the same old-parent pointer lands twice in old_nodes[]. The cleanup loop double frees the parent. Of course the same parent may still be in old_nodes[] twice if we are moving multiple of its leaves.
Note that this patch also implicitly fixes the fact that the i >= leaves_count path forgets to set ret.
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_2023 | — | Upgrade kernel6.18-modules-extra-commonUpgrade kernel-livepatch-6.18.35-68.127Upgrade kernel6.18-debuginfo-common-aarch64Upgrade perf6.18-debuginfoUpgrade bpftool6.18Upgrade kernel6.18Upgrade python3-perf6.18Upgrade kernel6.18-toolsUpgrade kernel6.18-tools-develUpgrade kernel6.18-modules-extraUpgrade kernel6.18-tools-debuginfoUpgrade bpftool6.18-debuginfoUpgrade microvm-kernel6.18Upgrade python3-perf6.18-debuginfoUpgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-headersUpgrade kernel6.18-develUpgrade kernel6.18-debuginfoUpgrade perf6.18 | Aug 10, 2026 | Jul 19, 2026 |
| Redhat_linux | — | No solution exists | Jul 22, 2026 | Jul 19, 2026 |
| Ubuntu | — | Upgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-raspiUpgrade linux-image-nvidia-bos-64kUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-nvidia-bosUpgrade linux-image-raspi-7.0Upgrade linux-image-awsUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-nvidia-7.0Upgrade linux-image-7.0.0-1014-azureUpgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-azureUpgrade linux-image-aws-7.0Upgrade linux-image-7.0.0-1010-azureUpgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-gcp-64kUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-aws-64k-7.0Upgrade linux-image-aws-64kUpgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-azure-fdeUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-oracleUpgrade linux-image-nvidiaUpgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-oracle-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-gcp-7.0Upgrade linux-image-gcpUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-7.0.0-1009-awsUpgrade linux-image-azure-fde-7.0Upgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-oracle-7.0Upgrade linux-image-ibm-7.0Upgrade linux-image-ibmUpgrade linux-image-azure-7.0Upgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-raspi-realtime | Jul 21, 2026 | Jul 20, 2026 |
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