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In the Linux kernel, the following vulnerability has been resolved:
tcp: fix a signed-integer-overflow bug in tcp_add_backlog()
The type of sk_rcvbuf and sk_sndbuf in struct sock is int, and in tcp_add_backlog(), the variable limit is caculated by adding sk_rcvbuf, sk_sndbuf and 64 * 1024, it may exceed the max value of int and overflow. This patch reduces the limit budget by halving the sndbuf to solve this issue since ACK packets are much smaller than the payload.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade perfUpgrade kernel-tools-libs-develUpgrade kernel-debug-modulesUpgrade kernel-rt-modules-extraUpgrade kernel-zfcpdump-coreUpgrade kernel-rt-develUpgrade kernel-toolsUpgrade kernel-rt-debugUpgrade kernel-rtUpgrade kernel-develUpgrade kernel-rt-modulesUpgrade kernel-tools-libsUpgrade bpftoolUpgrade python3-perfUpgrade kernel-rt-debug-coreUpgrade kernel-abi-stablelistsUpgrade kernel-zfcpdumpUpgrade kernel-modules-extraUpgrade kernel-debug-modules-extraUpgrade kernel-modulesUpgrade kernel-zfcpdump-develUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-debug-develUpgrade kernelUpgrade kernel-coreUpgrade kernel-rt-coreUpgrade kernel-debug-coreUpgrade kernel-debugUpgrade kernel-rt-debug-modulesUpgrade kernel-rt-debug-develUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-debug-modules-extraUpgrade kernel-docUpgrade kernel-headersUpgrade kernel-cross-headers | Feb 3, 2026 | Feb 2, 2026 |
| Amazon Linux Ami 2 | — | Upgrade python-perfUpgrade kernel-livepatch-5.15.79-51.138Upgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64Upgrade bpftoolUpgrade kernel-tools-debuginfoUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfoUpgrade kernel-livepatch-5.10.155-138.670Upgrade python-perf-debuginfoUpgrade kernelUpgrade kernel-tools-develUpgrade perfUpgrade kernel-headersUpgrade bpftool-debuginfoUpgrade perf-debuginfo | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Dec 31, 2025 | Dec 31, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernelUpgrade kernel-toolsUpgrade python3-perf | Mar 10, 2026 | Mar 10, 2026 |
| Oracle_linux | — | Upgrade kernel | Feb 4, 2026 | Dec 30, 2025 |
| Redhat_linux | — | No solution existsUpgrade kernelUpgrade kernel-rt | Feb 3, 2026 | Dec 30, 2025 |
| Rocky_linux | — | Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-rt-modules-extraUpgrade perfUpgrade kernelUpgrade kernel-rtUpgrade kernel-rt-kvmUpgrade kernel-debug-modules-extraUpgrade kernel-tools-libs-develUpgrade kernel-rt-debug-coreUpgrade kernel-rt-modulesUpgrade bpftoolUpgrade kernel-rt-debuginfoUpgrade kernel-toolsUpgrade kernel-modules-extraUpgrade kernel-debug-modulesUpgrade kernel-debugUpgrade kernel-tools-libsUpgrade kernel-rt-develUpgrade kernel-rt-coreUpgrade kernel-develUpgrade kernel-debug-develUpgrade kernel-coreUpgrade kernel-tools-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade kernel-rt-debug-modules-extraUpgrade python3-perfUpgrade kernel-debug-debuginfoUpgrade kernel-rt-debugUpgrade kernel-rt-debug-debuginfoUpgrade kernel-modulesUpgrade kernel-rt-debuginfo-common-x86_64Upgrade python3-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-rt-debug-modulesUpgrade kernel-rt-debug-kvmUpgrade kernel-debug-coreUpgrade kernel-rt-debug-devel | Feb 13, 2026 | Feb 11, 2026 |
| Ubuntu | — | Upgrade linux-lowlatencyUpgrade linux-gkeopUpgrade linux-gkeUpgrade linux-gcp-5.4Upgrade linux-azure-fipsUpgrade linuxUpgrade linux-hwe-5.4Upgrade linux-azure-5.15Upgrade linux-gcp-fipsUpgrade linux-iotUpgrade linux-aws-fipsUpgrade linux-ibm-5.4Upgrade linux-awsUpgrade linux-oracle-5.4Upgrade linux-oracle-5.15Upgrade linux-azure-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-hwe-5.15Upgrade linux-ibmUpgrade linux-raspiUpgrade linux-azureUpgrade linux-raspi-5.4Upgrade linux-bluefieldUpgrade linux-xilinx-zynqmpUpgrade linux-realtimeUpgrade linux-nvidiaUpgrade linux-intel-iotg-5.15Upgrade linux-fipsUpgrade linux-aws-5.4Upgrade linux-kvmUpgrade linux-riscv-5.15Upgrade linux-intel-iotgUpgrade linux-oracleUpgrade linux-gcp-5.15Upgrade linux-gcpUpgrade linux-azure-fdeUpgrade linux-aws-5.15 | Jan 6, 2026 | Jan 2, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 30, 2025 |
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