In the Linux kernel, the following vulnerability has been resolved:
dccp: fix data-race around dp->dccps_mss_cache
dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket. Same thing in do_dccp_getsockopt().
Add READ_ONCE()/WRITE_ONCE() annotations, and change dccp_sendmsg() to check again dccps_mss_cache after socket is locked.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfoUpgrade kernel-develUpgrade kernel-livepatch-5.10.192-182.736Upgrade kernel-toolsUpgrade kernel-tools-develUpgrade perfUpgrade bpftoolUpgrade kernelUpgrade bpftool-debuginfoUpgrade kernel-headersUpgrade kernel-livepatch-4.14.326-245.539Upgrade python-perf-debuginfoUpgrade kernel-livepatch-5.15.128-80.144Upgrade perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade python-perf | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-libbpf-staticUpgrade kernel-libbpfUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernel-toolsUpgrade kernel-tools-debuginfoUpgrade bpftoolUpgrade python3-perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfoUpgrade perfUpgrade kernel-livepatch-6.1.49-69.116Upgrade kernel-develUpgrade kernelUpgrade python3-perfUpgrade perf-debuginfoUpgrade kernel-libbpf-devel | Jan 12, 2026 | Dec 9, 2025 |
| Debian | — | Upgrade linux | Dec 10, 2025 | Dec 10, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 9, 2025 |
| Ubuntu | — | Upgrade linux-kvmUpgrade linux-lowlatencyUpgrade linux-realtimeUpgrade linux-ibmUpgrade linux-fipsUpgrade linux-gcp-5.15Upgrade linux-raspi-5.4Upgrade linux-aws-fipsUpgrade linux-riscv-5.15Upgrade linux-azureUpgrade linux-gcpUpgrade linux-oracleUpgrade linux-bluefieldUpgrade linux-lowlatency-hwe-5.15Upgrade linux-gcp-fipsUpgrade linux-azure-5.15Upgrade linux-nvidiaUpgrade linux-oracle-5.15Upgrade linux-gkeopUpgrade linux-intel-iotgUpgrade linux-intel-iotg-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-hwe-5.4Upgrade linux-raspiUpgrade linux-azure-5.4Upgrade linux-hwe-5.15Upgrade linux-iotUpgrade linux-ibm-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linux-gkeUpgrade linuxUpgrade linux-nvidia-tegraUpgrade linux-gcp-5.4Upgrade linux-nvidia-tegra-igxUpgrade linux-intel-iot-realtimeUpgrade linux-aws-5.15Upgrade linux-ibm-5.4Upgrade linux-aws-5.4Upgrade linux-azure-fipsUpgrade linux-oracle-5.4Upgrade linux-aws | Dec 11, 2025 | Dec 9, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 9, 2025 |
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