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In the Linux kernel, the following vulnerability has been resolved:
sctp: fix stream->outcnt underflow on duplicate RECONF responses
A cached RECONF chunk may contain more than one request parameter. A duplicate response can therefore find and process the same ADD_OUT request again while another parameter is still outstanding, rolling back outcnt twice and possibly underflowing it.
Track outstanding request types as bits and clear each bit after its first response. Later responses for the same request are then ignored.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.15.221-157.262Upgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade bpftoolUpgrade kernel-livepatch-5.10.270-271.1109Upgrade kernel-tools-develUpgrade kernel-toolsUpgrade kernel-develUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade kernel-debuginfoUpgrade python-perfUpgrade python-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-tools-debuginfo | Oct 19, 2026 | Oct 19, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-tools-develUpgrade perf-debuginfoUpgrade python3-perfUpgrade kernel-livepatch-6.1.188-233.385Upgrade kernel-debuginfoUpgrade kernel-modules-extra-commonUpgrade kernel-headersUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade kernel-develUpgrade kernel-modules-extraUpgrade bpftoolUpgrade python3-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade bpftool-debuginfoUpgrade kernel | Oct 13, 2026 | Sep 11, 2026 |
| Debian | — | Upgrade linuxUpgrade linux-6.12 | Sep 30, 2026 | Sep 11, 2026 |
| Redhat_linux | — | No solution exists | Sep 16, 2026 | Sep 11, 2026 |
| Ubuntu | — | Upgrade linux-oem-7.0Upgrade linux-riscv-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-aws-5.15Upgrade linux-ibm-5.15Upgrade linux-bluefieldUpgrade linux-azure-fdeUpgrade linux-fipsUpgrade linux-awsUpgrade linux-gcpUpgrade linux-lowlatencyUpgrade linux-riscvUpgrade linux-nvidia-tegra-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-gkeUpgrade linuxUpgrade linux-nvidia-tegraUpgrade linux-azureUpgrade linux-intel-iotgUpgrade linux-gcp-fipsUpgrade linux-aws-fipsUpgrade linux-intel-iotg-5.15Upgrade linux-hwe-7.0Upgrade linux-azure-fde-5.15Upgrade linux-kvmUpgrade linux-hwe-5.15Upgrade linux-oracleUpgrade linux-nvidiaUpgrade linux-gcp-5.15Upgrade linux-azure-fipsUpgrade linux-riscv-7.0Upgrade linux-oracle-5.15Upgrade linux-nvidia-tegra-igxUpgrade linux-gkeopUpgrade linux-realtimeUpgrade linux-ibmUpgrade linux-azure-5.15 | Nov 3, 2026 | Sep 11, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 21, 2026 | Sep 11, 2026 |
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