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In the Linux kernel, the following vulnerability has been resolved:
net: gso: fix ownership in __udp_gso_segment
In __udp_gso_segment the skb destructor is removed before segmenting the skb but the socket reference is kept as-is. This is an issue if the original skb is later orphaned as we can hit the following bug:
kernel BUG at ./include/linux/skbuff.h:3312! (skb_orphan) RIP: 0010:ip_rcv_core+0x8b2/0xca0 Call Trace: ip_rcv+0xab/0x6e0 __netif_receive_skb_one_core+0x168/0x1b0 process_backlog+0x384/0x1100 __napi_poll.constprop.0+0xa1/0x370 net_rx_action+0x925/0xe50
The above can happen following a sequence of events when using OpenVSwitch, when an OVS_ACTION_ATTR_USERSPACE action precedes an OVS_ACTION_ATTR_OUTPUT action:
1. OVS_ACTION_ATTR_USERSPACE is handled (in do_execute_actions): the skb goes through queue_gso_packets and then __udp_gso_segment, where its destructor is removed. 2. The segments' data are copied and sent to userspace. 3. OVS_ACTION_ATTR_OUTPUT is handled (in do_execute_actions) and the same original skb is sent to its path. 4. If it later hits skb_orphan, we hit the bug.
Fix this by also removing the reference to the socket in __udp_gso_segment.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-rt-64k-debug-modules-extraUpgrade kernel-rt-64k-debugUpgrade kernel-64k-modulesUpgrade kernelUpgrade kernel-64k-modules-extraUpgrade kernel-rt-64k-debug-develUpgrade kernel-64kUpgrade kernel-tools-libs-develUpgrade kernel-develUpgrade kernel-rt-64k-modules-extraUpgrade kernel-cross-headersUpgrade kernel-debug-devel-matchedUpgrade kernel-64k-debug-modules-extraUpgrade kernel-rt-coreUpgrade kernel-64k-devel-matchedUpgrade kernel-devel-matchedUpgrade perfUpgrade libperfUpgrade kernel-rt-64k-debug-coreUpgrade kernel-64k-debug-modulesUpgrade kernel-64k-debug-coreUpgrade kernel-debug-develUpgrade python3-perfUpgrade kernel-64k-modules-coreUpgrade kernel-rt-64k-modulesUpgrade rtlaUpgrade kernel-rt-modules-extraUpgrade kernel-rt-64kUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debug-modulesUpgrade kernel-zfcpdump-modulesUpgrade kernel-uki-virtUpgrade kernel-coreUpgrade kernel-rt-debug-modules-coreUpgrade kernel-toolsUpgrade kernel-modules-extraUpgrade kernel-rt-64k-develUpgrade kernel-rt-64k-coreUpgrade kernel-zfcpdumpUpgrade kernel-rtUpgrade kernel-64k-develUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-64k-coreUpgrade kernel-rt-modules-coreUpgrade kernel-rt-debugUpgrade kernel-64k-debugUpgrade rvUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-headersUpgrade kernel-debugUpgrade kernel-64k-debug-develUpgrade kernel-zfcpdump-coreUpgrade kernel-64k-debug-modules-coreUpgrade kernel-uki-virt-addonsUpgrade kernel-rt-64k-debug-modulesUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-debug-modules-coreUpgrade kernel-debug-coreUpgrade kernel-rt-debug-coreUpgrade kernel-rt-develUpgrade kernel-rt-debug-modules-extraUpgrade kernel-zfcpdump-develUpgrade kernel-rt-kvmUpgrade kernel-debug-modules-extraUpgrade kernel-tools-libsUpgrade kernel-docUpgrade kernel-rt-debug-develUpgrade kernel-rt-modulesUpgrade kernel-rt-64k-debug-modules-coreUpgrade kernel-debug-modulesUpgrade kernel-rt-64k-modules-coreUpgrade kernel-rt-debug-kvmUpgrade kernel-debug-uki-virtUpgrade kernel-modules-coreUpgrade kernel-abi-stablelistsUpgrade kernel-modules | Jun 13, 2025 | Apr 1, 2025 |
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.10.235-227.919Upgrade kernel-tools-develUpgrade kernel-livepatch-5.15.179-121.185Upgrade kernelUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade kernel-headersUpgrade kernel-tools-debuginfoUpgrade perfUpgrade bpftoolUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-toolsUpgrade python-perf | Apr 17, 2025 | Apr 1, 2025 |
| Amazon_linux_2023 | — | Upgrade kernel-livepatch-6.12.22-27.96Upgrade perf-debuginfoUpgrade kernel-libbpfUpgrade kernel6.12-modules-extraUpgrade kernel-libbpf-develUpgrade kernel6.12-debuginfoUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel-headersUpgrade kernel-tools-debuginfoUpgrade python3-perf6.12Upgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel6.12Upgrade kernel-modules-extraUpgrade kernel6.12-debuginfo-common-x86_64Upgrade perf6.12Upgrade kernelUpgrade kernel-modules-extra-commonUpgrade kernel-libbpf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-toolsUpgrade python3-perf6.12-debuginfoUpgrade bpftool-debuginfoUpgrade perfUpgrade kernel-develUpgrade bpftoolUpgrade python3-perf-debuginfoUpgrade kernel-tools-develUpgrade python3-perfUpgrade kernel-livepatch-6.1.131-143.221Upgrade perf6.12-debuginfoUpgrade kernel-libbpf-static | Apr 15, 2025 | Apr 1, 2025 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Apr 14, 2025 | Apr 1, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade bpftoolUpgrade python3-perfUpgrade kernel | Jun 13, 2025 | Apr 1, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-toolsUpgrade kernelUpgrade kernel-tools-libsUpgrade python3-perfUpgrade bpftoolUpgrade kernel-abi-stablelists | Jul 21, 2025 | Apr 1, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernelUpgrade bpftoolUpgrade python3-perfUpgrade kernel-tools-libs | Jul 1, 2025 | Apr 1, 2025 |
| Oracle_linux | — | Upgrade kernel | Jun 30, 2025 | Apr 1, 2025 |
| Redhat_linux | — | No solution existsUpgrade kernelUpgrade kernel-rt | Jun 10, 2025 | Apr 1, 2025 |
| Rocky_linux | — | Upgrade kernel-rtUpgrade kernel-rt-modules-coreUpgrade kernel-debug-modules-extraUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-rt-debug-kvmUpgrade kernel-debug-debuginfoUpgrade kernel-toolsUpgrade kernel-uki-virtUpgrade kernel-modules-coreUpgrade rvUpgrade perf-debuginfoUpgrade kernel-debug-devel-matchedUpgrade kernel-headersUpgrade kernel-zfcpdumpUpgrade kernel-rt-modulesUpgrade kernel-tools-libs-develUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-debug-develUpgrade libperfUpgrade kernel-devel-matchedUpgrade kernel-uki-virt-addonsUpgrade kernel-rt-debuginfoUpgrade kernel-debug-modulesUpgrade kernel-zfcpdump-develUpgrade kernel-cross-headersUpgrade kernel-zfcpdump-coreUpgrade kernel-debuginfo-common-s390xUpgrade libperf-debuginfoUpgrade kernel-zfcpdump-modules-coreUpgrade kernelUpgrade kernel-rt-debug-modulesUpgrade perfUpgrade kernel-rt-debugUpgrade kernel-debug-coreUpgrade python3-perfUpgrade kernel-rt-develUpgrade kernel-rt-debug-debuginfoUpgrade kernel-develUpgrade kernel-debugUpgrade python3-perf-debuginfoUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-modulesUpgrade rtlaUpgrade kernel-tools-debuginfoUpgrade kernel-tools-libsUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-rt-debug-modules-extraUpgrade kernel-debuginfoUpgrade kernel-coreUpgrade kernel-debug-modules-coreUpgrade kernel-rt-kvmUpgrade kernel-rt-coreUpgrade kernel-debug-uki-virtUpgrade kernel-rt-debug-coreUpgrade kernel-rt-modules-extraUpgrade kernel-debug-develUpgrade kernel-modules-extraUpgrade kernel-rt-debug-modules-core | Oct 6, 2025 | Oct 3, 2025 |
| Suse | — | Upgrade cluster-md-kmp-azureUpgrade dtb-amazonUpgrade kselftests-kmp-64kbUpgrade kernel-debug-vdsoUpgrade kernel-kvmsmall-develUpgrade kernel-sourceUpgrade kernel-source-azureUpgrade kernel-default-base-rebuildUpgrade kernel-develUpgrade kernel-devel-rtUpgrade kernel-64kb-develUpgrade kselftests-kmp-azureUpgrade kernel-kvmsmallUpgrade kernel-zfcpdumpUpgrade kernel-default-vdsoUpgrade ocfs2-kmp-azureUpgrade dtb-freescaleUpgrade kernel-rt-develUpgrade dtb-exynosUpgrade kernel-rt_debug-develUpgrade kernel-source-vanillaUpgrade reiserfs-kmp-azureUpgrade dtb-caviumUpgrade kernel-source-rtUpgrade kernel-64kbUpgrade kernel-rt-optionalUpgrade kernel-rtUpgrade kernel-default-livepatchUpgrade dtb-lgUpgrade dtb-qcomUpgrade gfs2-kmp-azureUpgrade dtb-rockchipUpgrade kernel-azureUpgrade dtb-allwinnerUpgrade reiserfs-kmp-64kbUpgrade gfs2-kmp-defaultUpgrade dlm-kmp-64kbUpgrade kernel-azure-develUpgrade ocfs2-kmp-defaultUpgrade kernel-azure-optionalUpgrade kernel-default-develUpgrade ocfs2-kmp-64kbUpgrade ocfs2-kmp-rtUpgrade cluster-md-kmp-rtUpgrade dtb-mediatekUpgrade kernel-syms-azureUpgrade dtb-alteraUpgrade kernel-devel-azureUpgrade dtb-xilinxUpgrade gfs2-kmp-64kbUpgrade kernel-default-optionalUpgrade gfs2-kmp-rtUpgrade kernel-defaultUpgrade kernel-64kb-optionalUpgrade dtb-hisiliconUpgrade dtb-amlogicUpgrade kernel-default-baseUpgrade dtb-socionextUpgrade kernel-rt_debugUpgrade kernel-kvmsmall-vdsoUpgrade kernel-rt-livepatch-develUpgrade kselftests-kmp-rtUpgrade dtb-marvellUpgrade dtb-broadcomUpgrade dtb-appleUpgrade dtb-apmUpgrade cluster-md-kmp-defaultUpgrade reiserfs-kmp-rtUpgrade cluster-md-kmp-64kbUpgrade kernel-docsUpgrade dlm-kmp-rtUpgrade kernel-default-livepatch-develUpgrade kernel-syms-rtUpgrade kernel-debugUpgrade kernel-obs-buildUpgrade kernel-64kb-extraUpgrade kernel-rt-extraUpgrade kernel-obs-qaUpgrade kernel-azure-vdsoUpgrade dtb-amdUpgrade kernel-rt_debug-vdsoUpgrade reiserfs-kmp-defaultUpgrade kselftests-kmp-defaultUpgrade kernel-default-manUpgrade dtb-sprdUpgrade dtb-nvidiaUpgrade kernel-macrosUpgrade dtb-armUpgrade kernel-debug-develUpgrade kernel-azure-extraUpgrade dtb-renesasUpgrade kernel-docs-htmlUpgrade kernel-rt-vdsoUpgrade kernel-default-extraUpgrade dlm-kmp-defaultUpgrade dlm-kmp-azureUpgrade kernel-syms | Dec 5, 2025 | Jun 11, 2025 |
| Ubuntu | — | Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidiaUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-6.8.0-85-generic-64kUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-5.15.0-1037-nvidia-tegra-rtUpgrade linux-image-oemUpgrade linux-image-5.4.0-1105-bluefieldUpgrade linux-image-5.15.0-1078-nvidia-lowlatencyUpgrade linux-image-6.8.0-1039-awsUpgrade linux-image-lowlatency-64kUpgrade linux-image-5.15.0-1066-gkeopUpgrade linux-image-oem-20.04bUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-generic-64k-6.8Upgrade linux-image-6.8.0-1023-gkeopUpgrade linux-image-oem-24.04bUpgrade linux-image-azure-cvmUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-5.15.0-1077-intel-iot-realtimeUpgrade linux-image-5.15.0-1026-nvidia-tegra-igxUpgrade linux-image-5.15.0-1083-gcpUpgrade linux-image-5.4.0-1149-gcpUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-lowlatency-6.8Upgrade linux-image-5.15.0-140-lowlatencyUpgrade linux-image-awsUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.8.0-1036-gkeUpgrade linux-image-6.11.0-1011-realtimeUpgrade linux-image-5.15.0-1089-azure-fipsUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.11.0-1017-oracleUpgrade linux-image-5.4.0-216-lowlatencyUpgrade linux-image-5.4.0-1146-aws-fipsUpgrade linux-image-6.11.0-1015-lowlatencyUpgrade linux-image-5.15.0-1083-gcp-fipsUpgrade linux-image-5.4.0-216-generic-lpaeUpgrade linux-image-gkeop-5.15Upgrade linux-image-5.15.0-1079-intel-iotgUpgrade linux-image-gcp-fipsUpgrade linux-image-5.4.0-1144-oracleUpgrade linux-image-5.15.0-140-lowlatency-64kUpgrade linux-image-5.4.0-1092-ibmUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-aws-fipsUpgrade linux-image-5.15.0-1037-nvidia-tegraUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-5.4.0-1129-raspiUpgrade linux-image-gke-5.15Upgrade linux-image-aws-lts-20.04Upgrade linux-image-6.8.0-84-genericUpgrade linux-image-gcp-64kUpgrade linux-image-genericUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1039-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-142-generic-lpaeUpgrade linux-image-6.8.0-1036-gke-64kUpgrade linux-image-virtual-6.8Upgrade linux-image-azure-lts-20.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-2031-raspi-realtimeUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.15.0-140-generic-64kUpgrade linux-image-5.4.0-1064-xilinx-zynqmpUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.8.0-1039-nvidia-lowlatencyUpgrade linux-image-6.8.0-1036-azureUpgrade linux-image-6.8.0-84-lowlatency-64kUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-6.8.0-1038-azureUpgrade linux-image-oracle-lts-20.04Upgrade linux-image-6.8.0-1040-gcp-64kUpgrade linux-image-raspiUpgrade linux-image-5.4.0-216-genericUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-realtimeUpgrade linux-image-6.8.0-1036-azure-fdeUpgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-azure-nvidia-6.8Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-5.15.0-1084-realtimeUpgrade linux-image-generic-lpaeUpgrade linux-image-6.11.0-1015-awsUpgrade linux-image-5.4.0-1133-kvmUpgrade linux-image-fipsUpgrade linux-image-5.4.0-1146-awsUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.11.0-1014-raspiUpgrade linux-image-6.8.0-1037-oracle-64kUpgrade linux-image-5.15.0-1089-azureUpgrade linux-image-6.8.0-1038-azure-fdeUpgrade linux-image-nvidia-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-oracleUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-1084-awsUpgrade linux-image-6.8.1-1034-realtimeUpgrade linux-image-gke-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-azure-fdeUpgrade linux-image-ibmUpgrade linux-image-5.15.0-1078-raspiUpgrade linux-image-gcp-6.8Upgrade linux-image-ibm-lts-20.04Upgrade linux-image-bluefieldUpgrade linux-image-oem-22.04Upgrade linux-image-5.4.0-1120-fipsUpgrade linux-image-azure-nvidiaUpgrade linux-image-6.8.0-1037-oracleUpgrade linux-image-5.15.0-1081-gkeUpgrade linux-image-oem-20.04cUpgrade linux-image-virtualUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-nvidia-64kUpgrade linux-image-oem-22.04bUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-realtime-6.8.1Upgrade linux-image-gcp-lts-20.04Upgrade linux-image-5.15.0-1050-xilinx-zynqmpUpgrade linux-image-aws-64k-6.8Upgrade linux-image-5.15.0-1078-nvidiaUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-generic-6.8Upgrade linux-image-azureUpgrade linux-image-6.8.0-1039-nvidiaUpgrade linux-image-6.11.0-1015-lowlatency-64kUpgrade linux-image-raspi-realtimeUpgrade linux-image-5.4.0-1051-iotUpgrade linux-image-gkeopUpgrade linux-image-azure-fde-6.8Upgrade linux-image-5.15.0-140-genericUpgrade linux-image-intel-iotgUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-85-genericUpgrade linux-image-5.15.0-1084-aws-fipsUpgrade linux-image-6.11.0-1016-gcpUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-6.11.0-28-genericUpgrade linux-image-azure-6.11Upgrade linux-image-6.8.0-1040-gcpUpgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-6.8.0-1025-azure-nvidiaUpgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-1039-aws-64kUpgrade linux-image-aws-6.8Upgrade linux-image-oem-22.04cUpgrade linux-image-raspi2Upgrade linux-image-kvmUpgrade linux-image-raspi-hwe-18.04Upgrade linux-image-gcpUpgrade linux-image-nvidia-tegraUpgrade linux-image-oracle-64kUpgrade linux-image-5.4.0-1151-azure-fipsUpgrade linux-image-5.15.0-1080-kvmUpgrade linux-image-azure-lts-24.04Upgrade linux-image-ibm-6.8Upgrade linux-image-6.11.0-1018-azure-fdeUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-gke-64k-6.8Upgrade linux-image-5.15.0-1081-oracleUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-gke-6.8Upgrade linux-image-gkeUpgrade linux-image-6.8.0-84-lowlatencyUpgrade linux-image-6.11.0-1016-gcp-64kUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-azure-fde-6.11Upgrade linux-image-oem-22.04dUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-6.11.0-1018-azureUpgrade linux-image-azure-nvidia-lts-24.04Upgrade linux-image-lowlatency-6.11Upgrade linux-image-oracle-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-oem-osp1Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-1026-nvidia-tegra-igx-rtUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-raspi-6.8Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-6.11.0-1024-oemUpgrade linux-image-generic-64kUpgrade linux-image-azure-fipsUpgrade linux-image-5.15.0-140-fipsUpgrade linux-image-lowlatency-64k-6.11Upgrade linux-image-oem-20.04dUpgrade linux-image-6.8.0-1039-raspiUpgrade linux-image-5.15.0-142-generic-64kUpgrade linux-image-oem-20.04Upgrade linux-image-aws-lts-24.04Upgrade linux-image-5.15.0-142-genericUpgrade linux-image-5.4.0-1149-gcp-fipsUpgrade linux-image-6.11.0-1017-oracle-64kUpgrade linux-image-aws-64kUpgrade linux-image-6.11.0-28-generic-64kUpgrade linux-image-5.4.0-1151-azureUpgrade linux-image-6.8.0-1037-ibmUpgrade linux-image-azure-fde-edgeUpgrade linux-image-5.15.0-140-generic-lpaeUpgrade linux-image-5.15.0-1076-ibmUpgrade linux-image-6.8.0-1039-nvidia-64kUpgrade linux-image-6.8.0-84-generic-64kUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-intel | May 20, 2025 | Apr 1, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2025 | Apr 1, 2025 |
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