In the Linux kernel, the following vulnerability has been resolved:
ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down()
As discussed in the past (commit 2d3916f31891 ("ipv6: fix skb drops in igmp6_event_query() and igmp6_event_report()")) I think the synchronize_net() call in ipv6_mc_down() is not needed.
Under load, synchronize_net() can last between 200 usec and 5 ms.
KASAN seems to agree as well.
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 perfUpgrade bpftoolUpgrade kernel-tools-debuginfoUpgrade kernel-develUpgrade kernel-toolsUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-develUpgrade kernel-livepatch-5.15.153-100.162Upgrade kernel-headersUpgrade perf-debuginfoUpgrade kernelUpgrade bpftool-debuginfoUpgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade python-perf-debuginfo | Aug 2, 2024 | May 1, 2024 |
| Amazon_linux_2023 | — | Upgrade python3-perfUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-6.1.84-99.169Upgrade kernel-libbpfUpgrade kernelUpgrade kernel-headersUpgrade python3-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-develUpgrade kernel-libbpf-develUpgrade kernel-libbpf-staticUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-modules-extraUpgrade bpftoolUpgrade perfUpgrade kernel-toolsUpgrade kernel-develUpgrade kernel-modules-extra-commonUpgrade perf-debuginfoUpgrade bpftool-debuginfo | Feb 17, 2025 | May 1, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 1, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 1, 2024 |
| Ubuntu | — | Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-raspi-nolpaeUpgrade linux-image-generic-lpaeUpgrade linux-image-5.15.0-1062-gcpUpgrade linux-image-5.15.0-1060-kvmUpgrade linux-image-lowlatency-64kUpgrade linux-image-5.15.0-1030-xilinx-zynqmpUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-5.15.0-1063-awsUpgrade linux-image-6.8.0-1006-oracle-64kUpgrade linux-image-oracleUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.8.0-35-lowlatencyUpgrade linux-image-6.8.0-1006-oemUpgrade linux-image-5.15.0-1058-intel-iotgUpgrade linux-image-6.8.0-1008-azure-fdeUpgrade linux-image-5.15.0-1066-azureUpgrade linux-image-oem-20.04bUpgrade linux-image-5.15.0-113-genericUpgrade linux-image-6.8.0-1004-gkeUpgrade linux-image-6.8.0-35-generic-64kUpgrade linux-image-gke-5.15Upgrade linux-image-5.15.0-110-lowlatency-64kUpgrade linux-image-azure-lts-22.04Upgrade linux-image-5.15.0-1058-raspiUpgrade linux-image-nvidiaUpgrade linux-image-azure-fdeUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-genericUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-5.15.0-113-generic-64kUpgrade linux-image-6.8.0-1005-raspiUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-5.15.0-1058-nvidiaUpgrade linux-image-ibmUpgrade linux-image-awsUpgrade linux-image-6.8.0-1008-azureUpgrade linux-image-lowlatencyUpgrade linux-image-gkeopUpgrade linux-image-aws-lts-22.04Upgrade linux-image-generic-64kUpgrade linux-image-5.15.0-112-generic-lpaeUpgrade linux-image-intel-iotgUpgrade linux-image-5.15.0-1061-oracleUpgrade linux-image-oem-20.04Upgrade linux-image-gkeUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.15.0-1057-ibmUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-5.15.0-112-generic-64kUpgrade linux-image-6.8.0-1008-gcpUpgrade linux-image-5.15.0-1058-nvidia-lowlatencyUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1006-ibmUpgrade linux-image-azureUpgrade linux-image-virtualUpgrade linux-image-oem-20.04cUpgrade linux-image-oem-24.04Upgrade linux-image-6.8.0-1006-oracleUpgrade linux-image-5.15.0-112-genericUpgrade linux-image-gcpUpgrade linux-image-raspiUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.15.0-1046-gkeopUpgrade linux-image-5.15.0-1065-azure-fdeUpgrade linux-image-5.15.0-113-generic-lpaeUpgrade linux-image-6.8.0-35-lowlatency-64kUpgrade linux-image-5.15.0-110-lowlatencyUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-ibm-classicUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-5.15.0-1060-gkeUpgrade linux-image-oem-24.04aUpgrade linux-image-6.8.0-35-genericUpgrade linux-image-intelUpgrade linux-image-6.8.0-1009-awsUpgrade linux-image-5.15.0-1056-ibmUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-oracle-64kUpgrade linux-image-oem-20.04d | Jul 1, 2024 | May 1, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 14, 2025 | May 1, 2024 |
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