In the Linux kernel, the following vulnerability has been resolved:
tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer
The reproduction steps: 1. create a tun interface 2. enable l2 bearer 3. TIPC_NL_UDP_GET_REMOTEIP with media name set to tun
tipc: Started in network mode tipc: Node identity 8af312d38a21, cluster identity 4711 tipc: Enabled bearer <eth:syz_tun>, priority 1 Oops: general protection fault KASAN: null-ptr-deref in range CPU: 1 UID: 1000 PID: 559 Comm: poc Not tainted 6.16.0-rc1+ #117 PREEMPT Hardware name: QEMU Ubuntu 24.04 PC RIP: 0010:tipc_udp_nl_dump_remoteip+0x4a4/0x8f0
the ub was in fact a struct dev.
when bid != 0 && skip_cnt != 0, bearer_list[bid] may be NULL or other media when other thread changes it.
fix this by checking media_id.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade bpftoolUpgrade kernel-debuginfoUpgrade kernel-develUpgrade python-perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.10.239-236.958Upgrade kernel-headersUpgrade kernel-tools-develUpgrade bpftool-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade perf-debuginfoUpgrade perf | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Jul 7, 2025 | Jul 4, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-tools-libsUpgrade python3-perfUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernel-tools | Oct 14, 2025 | Oct 10, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernelUpgrade python3-perfUpgrade bpftool | Nov 12, 2025 | Oct 10, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernelUpgrade python3-perfUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-tools-libsUpgrade kernel-abi-stablelists | Nov 21, 2025 | Oct 10, 2025 |
| Oracle_linux | — | Upgrade kernel-uek | Sep 10, 2025 | Jul 4, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 4, 2025 |
| Suse | — | Upgrade cluster-md-kmp-rtUpgrade dtb-sprdUpgrade kselftests-kmp-rtUpgrade dtb-broadcomUpgrade dtb-freescaleUpgrade dtb-rockchipUpgrade dtb-alteraUpgrade dlm-kmp-64kbUpgrade kselftests-kmp-azureUpgrade ocfs2-kmp-defaultUpgrade kernel-defaultUpgrade kernel-kvmsmall-vdsoUpgrade kernel-preempt-develUpgrade dtb-renesasUpgrade kernel-default-optionalUpgrade gfs2-kmp-azureUpgrade dtb-lgUpgrade kernel-64kb-extraUpgrade kernel-source-rtUpgrade dtb-xilinxUpgrade kernel-rt-livepatchUpgrade gfs2-kmp-defaultUpgrade kernel-default-livepatch-develUpgrade kernel-develUpgrade kernel-docs-htmlUpgrade kernel-source-vanillaUpgrade kernel-azure-optionalUpgrade kernel-debugUpgrade kernel-azure-extraUpgrade kernel-debug-develUpgrade kernel-default-livepatchUpgrade dtb-amdUpgrade kernel-default-baseUpgrade dtb-appleUpgrade kernel-rt-extraUpgrade ocfs2-kmp-azureUpgrade dlm-kmp-rtUpgrade kernel-rt-optionalUpgrade kernel-rt_debug-develUpgrade reiserfs-kmp-defaultUpgrade kernel-obs-buildUpgrade ocfs2-kmp-64kbUpgrade kernel-default-vdsoUpgrade dtb-allwinnerUpgrade kselftests-kmp-64kbUpgrade reiserfs-kmp-64kbUpgrade reiserfs-kmp-rtUpgrade cluster-md-kmp-64kbUpgrade dtb-caviumUpgrade kernel-azureUpgrade kernel-debug-vdsoUpgrade kernel-rt-vdsoUpgrade dtb-nvidiaUpgrade kernel-devel-rtUpgrade kernel-rt-develUpgrade kernel-rt_debug-vdsoUpgrade kernel-source-azureUpgrade kernel-rtUpgrade kernel-azure-vdsoUpgrade kernel-kvmsmall-develUpgrade kernel-preemptUpgrade kernel-azure-develUpgrade gfs2-kmp-rtUpgrade kernel-syms-rtUpgrade kernel-default-manUpgrade kernel-rt-livepatch-develUpgrade kernel-macrosUpgrade dtb-socionextUpgrade cluster-md-kmp-azureUpgrade kernel-syms-azureUpgrade kernel-symsUpgrade kernel-kvmsmallUpgrade kernel-devel-azureUpgrade kernel-64kb-optionalUpgrade dtb-amlogicUpgrade kernel-zfcpdumpUpgrade kselftests-kmp-defaultUpgrade dtb-apmUpgrade dtb-amazonUpgrade kernel-sourceUpgrade kernel-64kb-develUpgrade dtb-qcomUpgrade cluster-md-kmp-defaultUpgrade kernel-docsUpgrade kernel-default-extraUpgrade reiserfs-kmp-azureUpgrade kernel-rt_debugUpgrade kernel-obs-qaUpgrade dtb-hisiliconUpgrade kernel-64kbUpgrade gfs2-kmp-64kbUpgrade dlm-kmp-azureUpgrade dtb-armUpgrade ocfs2-kmp-rtUpgrade dtb-mediatekUpgrade dtb-marvellUpgrade kernel-default-develUpgrade kernel-default-base-rebuildUpgrade dtb-exynosUpgrade dlm-kmp-default | Dec 5, 2025 | Sep 12, 2025 |
| Ubuntu | — | Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.14.0-1018-gcpUpgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-gcp-fipsUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-gke-64k-6.8Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-xilinx-6.8Upgrade linux-image-5.15.0-1034-nvidia-tegra-igxUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-5.15.0-1088-kvmUpgrade linux-image-fips-5.15Upgrade linux-image-6.14.0-1014-azureUpgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-realtimeUpgrade linux-image-xilinxUpgrade linux-image-oracle-64kUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-oracle-6.14Upgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-6.14.0-1015-awsUpgrade linux-image-aws-64k-5.15Upgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-5.15.0-1045-nvidia-tegraUpgrade linux-image-5.15.0-1092-gcpUpgrade linux-image-aws-fips-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-gke-64kUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-aws-lts-22.04Upgrade linux-image-fips-6.8Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-gcp-6.8Upgrade linux-image-oem-6.14Upgrade linux-image-raspi-nolpaeUpgrade linux-image-aws-6.14Upgrade linux-image-6.14.0-1015-aws-64kUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-5.15.0-156-generic-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-aws-64k-6.14Upgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-aws-64k-6.8Upgrade linux-image-generic-64k-6.14Upgrade linux-image-virtualUpgrade linux-image-oracleUpgrade linux-image-oem-24.04aUpgrade linux-image-realtime-6.14Upgrade linux-image-realtime-5.15Upgrade linux-image-oracle-64k-6.14Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-gcp-64k-6.14Upgrade linux-image-azure-fips-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-generic-64k-5.15Upgrade linux-image-aws-5.15Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-generic-64k-6.8Upgrade linux-image-azure-cvmUpgrade linux-image-5.15.0-1096-azure-fipsUpgrade linux-image-5.15.0-1092-aws-fipsUpgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-5.15.0-156-lowlatency-64kUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-5.15.0-1034-nvidia-tegra-igx-rtUpgrade linux-image-virtual-6.14Upgrade linux-image-raspi-realtimeUpgrade linux-image-5.15.0-1087-nvidiaUpgrade linux-image-raspi-6.8Upgrade linux-image-5.15.0-1092-realtimeUpgrade linux-image-awsUpgrade linux-image-5.15.0-1086-ibmUpgrade linux-image-gcp-5.15Upgrade linux-image-gcpUpgrade linux-image-azure-nvidia-6.14Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-virtual-5.15Upgrade linux-image-ibm-6.8Upgrade linux-image-generic-6.14Upgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-6.14.0-1016-raspiUpgrade linux-image-azure-5.15Upgrade linux-image-5.15.0-1087-intel-iotgUpgrade linux-image-5.15.0-156-genericUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-nvidia-tegra-igxUpgrade linux-image-oem-22.04bUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-oracle-6.8Upgrade linux-image-oem-24.04cUpgrade linux-image-oem-22.04dUpgrade linux-image-raspi-5.15Upgrade linux-image-5.15.0-1086-raspiUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-generic-6.8Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-5.15.0-1056-xilinx-zynqmpUpgrade linux-image-aws-64kUpgrade linux-image-gke-6.8Upgrade linux-image-6.8.0-1046-azureUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-raspiUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-oracle-5.15Upgrade linux-image-azure-6.14Upgrade linux-image-5.15.0-1089-gkeUpgrade linux-image-6.14.0-1015-oracle-64kUpgrade linux-image-5.15.0-1087-nvidia-lowlatencyUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-lowlatency-5.15Upgrade linux-image-intel-iotg-5.15Upgrade linux-image-azure-6.8Upgrade linux-image-gkeop-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-gcp-6.14Upgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.14.0-1015-oracleUpgrade linux-image-6.14.0-1014-oemUpgrade linux-image-6.14.0-1014-realtimeUpgrade linux-image-oem-22.04Upgrade linux-image-5.15.0-1092-gcp-fipsUpgrade linux-image-5.15.0-1075-gkeopUpgrade linux-image-oem-24.04bUpgrade linux-image-6.8.0-1046-awsUpgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidia-6.8Upgrade linux-image-gkeopUpgrade linux-image-generic-lpae-5.15Upgrade linux-image-fipsUpgrade linux-image-azure-nvidiaUpgrade linux-image-ibm-5.15Upgrade linux-image-intel-iotgUpgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-ibmUpgrade linux-image-aws-fips-5.15Upgrade linux-image-6.14.0-34-generic-64kUpgrade linux-image-5.15.0-1085-intel-iot-realtimeUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-azure-fips-5.15Upgrade linux-image-aws-fipsUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-6.14.0-1007-azure-nvidiaUpgrade linux-image-5.15.0-156-lowlatencyUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-azureUpgrade linux-image-6.14.0-34-genericUpgrade linux-image-5.15.0-156-fipsUpgrade linux-image-5.15.0-1092-aws-64kUpgrade linux-image-5.15.0-1090-oracleUpgrade linux-image-5.15.0-1045-nvidia-tegra-rtUpgrade linux-image-virtual-6.8Upgrade linux-image-realtime-6.8.1Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-kvm-5.15Upgrade linux-image-azure-lts-24.04Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-raspi-6.14Upgrade linux-image-azure-lts-22.04Upgrade linux-image-nvidia-tegraUpgrade linux-image-oem-22.04aUpgrade linux-image-generic-lpaeUpgrade linux-image-5.15.0-156-generic-lpaeUpgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-6.14.0-1018-gcp-64kUpgrade linux-image-nvidia-5.15Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-gkeUpgrade linux-image-gke-5.15Upgrade linux-image-5.15.0-1096-azureUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-5.15.0-1092-awsUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-generic-64kUpgrade linux-image-lowlatency-6.8Upgrade linux-image-oem-24.04Upgrade linux-image-nvidiaUpgrade linux-image-lowlatencyUpgrade linux-image-gcp-fips-5.15Upgrade linux-image-generic-5.15Upgrade linux-image-genericUpgrade linux-image-6.8.0-100-genericUpgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-intelUpgrade linux-image-virtual-hwe-22.04 | Jul 9, 2025 | Jul 4, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 3, 2025 | Jul 4, 2025 |
Prioritise with Active Threat Intelligence
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