In the Linux kernel, the following vulnerability has been resolved:
mptcp: ensure snd_una is properly initialized on connect
This is strictly related to commit fb7a0d334894 ("mptcp: ensure snd_nxt is properly initialized on connect"). It turns out that syzkaller can trigger the retransmit after fallback and before processing any other incoming packet - so that snd_una is still left uninitialized.
Address the issue explicitly initializing snd_una together with snd_nxt and write_seq.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-64k-debug-develUpgrade kernel-rt-debugUpgrade kernel-zfcpdump-coreUpgrade kernel-rt-kvmUpgrade kernel-rt-modules-extraUpgrade kernel-debug-modules-coreUpgrade kernel-rt-develUpgrade kernel-64k-modules-extraUpgrade kernel-toolsUpgrade kernel-debug-modules-extraUpgrade kernel-rtUpgrade kernel-debug-modulesUpgrade kernel-64kUpgrade kernel-64k-debug-modules-coreUpgrade kernel-rt-debug-coreUpgrade kernel-tools-libs-develUpgrade kernel-64k-debugUpgrade kernel-debug-uki-virtUpgrade kernel-64k-debug-devel-matchedUpgrade kernelUpgrade bpftoolUpgrade rvUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-develUpgrade kernel-64k-debug-coreUpgrade kernel-64k-debug-modulesUpgrade kernel-cross-headersUpgrade kernel-64k-modulesUpgrade kernel-tools-libsUpgrade kernel-modulesUpgrade python3-perfUpgrade kernel-modules-extraUpgrade kernel-rt-modules-coreUpgrade kernel-64k-modules-coreUpgrade kernel-modules-coreUpgrade kernel-zfcpdump-develUpgrade kernel-64k-debug-modules-extraUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rt-debug-modules-extraUpgrade kernel-debugUpgrade kernel-debug-coreUpgrade rtlaUpgrade kernel-64k-develUpgrade kernel-rt-debug-kvmUpgrade kernel-uki-virtUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debug-develUpgrade libperfUpgrade kernel-headersUpgrade kernel-zfcpdumpUpgrade kernel-rt-modulesUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-debug-develUpgrade kernel-debug-devel-matchedUpgrade kernel-devel-matchedUpgrade kernel-abi-stablelistsUpgrade kernel-rt-debug-modulesUpgrade kernel-docUpgrade kernel-64k-devel-matchedUpgrade kernel-rt-coreUpgrade perfUpgrade kernel-coreUpgrade kernel-64k-core | Sep 26, 2024 | Jul 12, 2024 |
| Amazon Linux Ami 2 | — | Upgrade python-perfUpgrade python-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade kernel-livepatch-5.15.162-107.160Upgrade kernel-tools-develUpgrade perfUpgrade kernelUpgrade bpftoolUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.10.223-211.872Upgrade kernel-develUpgrade kernel-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-libbpf-staticUpgrade kernel-toolsUpgrade kernel-modules-extra-commonUpgrade perf-debuginfoUpgrade kernel-libbpf-develUpgrade python3-perfUpgrade kernel-headersUpgrade kernel-debuginfo-common-aarch64Upgrade kernelUpgrade kernel-tools-develUpgrade kernel-modules-extraUpgrade python3-perf-debuginfoUpgrade kernel-libbpfUpgrade bpftoolUpgrade kernel-livepatch-6.1.96-102.177Upgrade kernel-develUpgrade bpftool-debuginfoUpgrade perfUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfo | Oct 16, 2025 | Jul 12, 2024 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jul 17, 2024 | Jul 12, 2024 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Oct 16, 2024 | Jul 12, 2024 |
| Redhat_linux | — | No solution existsUpgrade kernelUpgrade kernel-rt | Sep 25, 2024 | Jul 12, 2024 |
| Rocky_linux | — | Upgrade kernel-rt-debug-modules-coreUpgrade rvUpgrade libperfUpgrade kernel-debug-devel-matchedUpgrade bpftool-debuginfoUpgrade kernel-rt-debug-coreUpgrade kernel-tools-libs-develUpgrade kernel-zfcpdump-modulesUpgrade kernel-rtUpgrade bpftoolUpgrade kernel-debug-debuginfoUpgrade kernel-rt-modules-coreUpgrade kernel-devel-matchedUpgrade kernel-toolsUpgrade kernel-rt-modules-extraUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-rt-kvmUpgrade kernel-rt-debuginfoUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-debug-modules-extraUpgrade kernel-rt-modulesUpgrade kernel-zfcpdump-coreUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debug-modulesUpgrade libperf-debuginfoUpgrade python3-perfUpgrade kernel-zfcpdump-modules-extraUpgrade kernelUpgrade kernel-modules-coreUpgrade kernel-modulesUpgrade kernel-zfcpdump-develUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-debuginfoUpgrade kernel-modules-extraUpgrade kernel-cross-headersUpgrade perfUpgrade kernel-rt-develUpgrade kernel-tools-libsUpgrade kernel-rt-debug-kvmUpgrade kernel-zfcpdumpUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-rt-debug-modules-extraUpgrade python3-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-rt-coreUpgrade kernel-debug-uki-virtUpgrade kernel-tools-debuginfoUpgrade kernel-rt-debugUpgrade kernel-debug-modules-coreUpgrade kernel-debugUpgrade kernel-coreUpgrade kernel-rt-debug-develUpgrade rtlaUpgrade kernel-uki-virtUpgrade kernel-debug-develUpgrade kernel-debug-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-develUpgrade kernel-rt-debug-debuginfo | Oct 2, 2024 | Jul 12, 2024 |
| Suse | — | Upgrade dtb-mediatekUpgrade dtb-amdUpgrade dtb-socionextUpgrade reiserfs-kmp-rtUpgrade kernel-debug-develUpgrade kernel-rt_debug-vdsoUpgrade dlm-kmp-defaultUpgrade reiserfs-kmp-azureUpgrade dlm-kmp-azureUpgrade kernel-default-livepatch-develUpgrade dtb-amlogicUpgrade kernel-64kb-develUpgrade kernel-64kb-extraUpgrade kernel-syms-rtUpgrade kselftests-kmp-rtUpgrade kernel-debug-livepatch-develUpgrade kernel-docsUpgrade kernel-azure-vdsoUpgrade kernel-rt-extraUpgrade dtb-armUpgrade kernel-obs-qaUpgrade cluster-md-kmp-64kbUpgrade kernel-symsUpgrade kernel-rt_debug-livepatch-develUpgrade kselftests-kmp-defaultUpgrade kernel-macrosUpgrade dtb-apmUpgrade kernel-devel-rtUpgrade kernel-rt_debugUpgrade kernel-obs-buildUpgrade kernel-rt-develUpgrade dlm-kmp-rtUpgrade dtb-rockchipUpgrade reiserfs-kmp-defaultUpgrade kernel-default-baseUpgrade kernel-default-base-rebuildUpgrade kernel-default-extraUpgrade cluster-md-kmp-defaultUpgrade kernel-defaultUpgrade kernel-rt-livepatch-develUpgrade dtb-renesasUpgrade dtb-nvidiaUpgrade dtb-sprdUpgrade kernel-kvmsmall-vdsoUpgrade kernel-azure-optionalUpgrade kernel-azureUpgrade kernel-zfcpdumpUpgrade kernel-source-azureUpgrade kernel-debug-vdsoUpgrade dtb-appleUpgrade kernel-kvmsmall-develUpgrade gfs2-kmp-rtUpgrade dtb-broadcomUpgrade cluster-md-kmp-azureUpgrade gfs2-kmp-defaultUpgrade dtb-lgUpgrade ocfs2-kmp-rtUpgrade kernel-default-develUpgrade gfs2-kmp-azureUpgrade kernel-devel-azureUpgrade kernel-default-vdsoUpgrade reiserfs-kmp-64kbUpgrade kernel-syms-azureUpgrade kernel-source-vanillaUpgrade kernel-rtUpgrade dtb-freescaleUpgrade dtb-exynosUpgrade dtb-alteraUpgrade dtb-hisiliconUpgrade dtb-caviumUpgrade kernel-develUpgrade kernel-default-optionalUpgrade kernel-azure-develUpgrade ocfs2-kmp-azureUpgrade dtb-marvellUpgrade ocfs2-kmp-64kbUpgrade kselftests-kmp-64kbUpgrade kernel-docs-htmlUpgrade kernel-debugUpgrade kernel-rt-vdsoUpgrade kernel-azure-extraUpgrade kselftests-kmp-azureUpgrade kernel-sourceUpgrade kernel-azure-livepatch-develUpgrade kernel-64kb-optionalUpgrade kernel-64kbUpgrade dtb-allwinnerUpgrade kernel-default-livepatchUpgrade kernel-rt-optionalUpgrade kernel-kvmsmallUpgrade cluster-md-kmp-rtUpgrade dlm-kmp-64kbUpgrade kernel-source-rtUpgrade gfs2-kmp-64kbUpgrade dtb-amazonUpgrade kernel-64kb-livepatch-develUpgrade dtb-xilinxUpgrade dtb-qcomUpgrade kernel-rt_debug-develUpgrade kernel-rt-livepatchUpgrade kernel-kvmsmall-livepatch-develUpgrade ocfs2-kmp-default | Aug 8, 2024 | Jul 12, 2024 |
| Ubuntu | — | Upgrade linux-image-nvidia-6.8Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-5.15.0-1066-kvmUpgrade linux-image-intel-iotgUpgrade linux-image-5.15.0-1035-xilinx-zynqmpUpgrade linux-image-gkeUpgrade linux-image-gkeopUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-raspiUpgrade linux-image-6.8.0-1015-awsUpgrade linux-image-6.8.0-1013-nvidia-lowlatencyUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-oem-22.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-azureUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-5.15.0-1064-nvidia-lowlatencyUpgrade linux-image-6.8.0-1014-azure-fdeUpgrade linux-image-5.15.0-1064-intel-iotgUpgrade linux-image-lowlatency-64kUpgrade linux-image-5.15.0-121-generic-64kUpgrade linux-image-genericUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-44-lowlatency-64kUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-oem-22.04cUpgrade linux-image-5.15.0-1062-raspiUpgrade linux-image-6.8.0-1013-nvidiaUpgrade linux-image-5.15.0-1072-azureUpgrade linux-image-gkeop-5.15Upgrade linux-image-5.15.0-1069-awsUpgrade linux-image-6.8.0-1012-ibmUpgrade linux-image-oem-20.04Upgrade linux-image-6.8.0-1011-raspiUpgrade linux-image-5.15.0-1072-azure-fdeUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-oem-22.04dUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-6.8.0-1014-gcpUpgrade linux-image-5.15.0-121-lowlatency-64kUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-raspi-nolpaeUpgrade linux-image-azure-cvmUpgrade linux-image-6.8.0-1012-oracleUpgrade linux-image-intelUpgrade linux-image-6.8.0-45-genericUpgrade linux-image-azure-fdeUpgrade linux-image-oem-20.04cUpgrade linux-image-awsUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-virtualUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-44-generic-64kUpgrade linux-image-5.15.0-1064-nvidiaUpgrade linux-image-oracle-64kUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-kvmUpgrade linux-image-oem-20.04bUpgrade linux-image-gke-5.15Upgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1010-gkeUpgrade linux-image-generic-64kUpgrade linux-image-5.15.0-1052-gkeopUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-ibmUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-oracleUpgrade linux-image-oem-20.04dUpgrade linux-image-nvidiaUpgrade linux-image-lowlatencyUpgrade linux-image-5.15.0-1062-ibmUpgrade linux-image-oem-22.04bUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1012-oracle-64kUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-gcpUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-44-lowlatencyUpgrade linux-image-6.8.0-1012-oemUpgrade linux-image-5.15.0-1068-gcpUpgrade linux-image-6.8.0-1013-nvidia-64kUpgrade linux-image-6.8.0-1013-nvidia-lowlatency-64kUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-44-genericUpgrade linux-image-5.15.0-121-lowlatencyUpgrade linux-image-6.8.0-45-generic-64kUpgrade linux-image-5.15.0-121-genericUpgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-1066-gkeUpgrade linux-image-6.8.0-1014-azureUpgrade linux-image-5.15.0-1067-oracleUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-5.15.0-121-generic-lpae | Sep 12, 2024 | Jul 12, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2025 | Jul 12, 2024 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub