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 kernelUpgrade kernel-debuginfo-common-x86_64Upgrade bpftoolUpgrade python-perf-debuginfoUpgrade kernel-headersUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade python-perfUpgrade perfUpgrade kernel-toolsUpgrade kernel-livepatch-5.10.239-236.958Upgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade bpftool-debuginfoUpgrade perf-debuginfo | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jul 7, 2025 | Jul 4, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade python3-perfUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernel | Oct 14, 2025 | Oct 10, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade bpftoolUpgrade kernelUpgrade python3-perf | Nov 12, 2025 | Oct 10, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade kernelUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libs | 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 kernel-rt_debugUpgrade kernel-rt-livepatch-develUpgrade reiserfs-kmp-azureUpgrade kernel-obs-qaUpgrade kernel-symsUpgrade kernel-syms-azureUpgrade dtb-socionextUpgrade kernel-64kbUpgrade kernel-macrosUpgrade cluster-md-kmp-azureUpgrade dtb-hisiliconUpgrade dtb-marvellUpgrade kernel-preemptUpgrade kernel-default-develUpgrade kernel-kvmsmall-develUpgrade dlm-kmp-defaultUpgrade kernel-docsUpgrade kernel-sourceUpgrade kernel-devel-rtUpgrade dtb-exynosUpgrade dtb-amazonUpgrade dtb-apmUpgrade kselftests-kmp-defaultUpgrade dtb-qcomUpgrade kernel-64kb-develUpgrade kernel-default-base-rebuildUpgrade kernel-source-azureUpgrade kernel-azure-develUpgrade kernel-rt-develUpgrade gfs2-kmp-rtUpgrade dtb-mediatekUpgrade kernel-default-manUpgrade kernel-rt_debug-vdsoUpgrade kernel-syms-rtUpgrade ocfs2-kmp-rtUpgrade cluster-md-kmp-defaultUpgrade kernel-64kb-optionalUpgrade dtb-amlogicUpgrade kernel-devel-azureUpgrade kernel-default-extraUpgrade kernel-kvmsmallUpgrade dtb-armUpgrade gfs2-kmp-64kbUpgrade kernel-azure-vdsoUpgrade kernel-zfcpdumpUpgrade dlm-kmp-azureUpgrade kernel-rtUpgrade ocfs2-kmp-azureUpgrade dtb-caviumUpgrade cluster-md-kmp-64kbUpgrade kernel-debug-vdsoUpgrade kernel-azureUpgrade dtb-sprdUpgrade gfs2-kmp-defaultUpgrade dtb-xilinxUpgrade cluster-md-kmp-rtUpgrade dlm-kmp-64kbUpgrade kernel-defaultUpgrade dtb-appleUpgrade dtb-nvidiaUpgrade kernel-rt-extraUpgrade kernel-default-baseUpgrade dlm-kmp-rtUpgrade reiserfs-kmp-rtUpgrade reiserfs-kmp-64kbUpgrade kernel-default-optionalUpgrade dtb-lgUpgrade dtb-amdUpgrade kernel-source-vanillaUpgrade kernel-source-rtUpgrade kernel-rt-livepatchUpgrade kernel-preempt-develUpgrade ocfs2-kmp-64kbUpgrade kernel-obs-buildUpgrade kernel-default-vdsoUpgrade dtb-allwinnerUpgrade kernel-rt_debug-develUpgrade kernel-rt-optionalUpgrade kernel-docs-htmlUpgrade kselftests-kmp-rtUpgrade kselftests-kmp-64kbUpgrade kernel-rt-vdsoUpgrade dtb-freescaleUpgrade dtb-broadcomUpgrade dtb-alteraUpgrade dtb-rockchipUpgrade ocfs2-kmp-defaultUpgrade kselftests-kmp-azureUpgrade kernel-kvmsmall-vdsoUpgrade kernel-64kb-extraUpgrade gfs2-kmp-azureUpgrade dtb-renesasUpgrade reiserfs-kmp-defaultUpgrade kernel-default-livepatch-develUpgrade kernel-azure-optionalUpgrade kernel-debugUpgrade kernel-develUpgrade kernel-default-livepatchUpgrade kernel-debug-develUpgrade kernel-azure-extra | Dec 5, 2025 | Sep 12, 2025 |
| Ubuntu | — | Upgrade linux-image-generic-6.8Upgrade linux-image-ibm-classicUpgrade linux-image-5.15.0-1086-ibmUpgrade linux-image-kvmUpgrade linux-image-raspi-6.8Upgrade linux-image-raspi-realtimeUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-generic-6.14Upgrade linux-image-virtual-6.14Upgrade linux-image-5.15.0-1034-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-1092-gcpUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-6.14.0-1015-awsUpgrade linux-image-aws-64k-5.15Upgrade linux-image-aws-fips-6.8Upgrade linux-image-fips-5.15Upgrade linux-image-oracle-64kUpgrade linux-image-generic-64k-6.14Upgrade linux-image-5.15.0-1045-nvidia-tegraUpgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-oracle-6.8Upgrade linux-image-xilinxUpgrade linux-image-realtimeUpgrade linux-image-6.14.0-1016-raspiUpgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-5.15.0-156-genericUpgrade linux-image-azure-5.15Upgrade linux-image-virtual-5.15Upgrade linux-image-5.15.0-1086-raspiUpgrade linux-image-5.15.0-1087-intel-iotgUpgrade linux-image-ibm-6.8Upgrade linux-image-nvidia-tegra-igxUpgrade linux-image-oem-22.04bUpgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-oem-22.04dUpgrade linux-image-raspi-5.15Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-5.15.0-1087-nvidiaUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-gkeop-5.15Upgrade linux-image-6.14.0-1014-azureUpgrade linux-image-oracle-6.14Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-oem-24.04cUpgrade linux-image-xilinx-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-oracleUpgrade linux-image-virtualUpgrade linux-image-6.14.0-1018-gcpUpgrade linux-image-azure-cvmUpgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-gke-64k-6.8Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-5.15.0-1088-kvmUpgrade linux-image-5.15.0-156-generic-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-5.15.0-1034-nvidia-tegra-igxUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-aws-lts-24.04Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-aws-6.14Upgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gcpUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-5.15.0-1092-realtimeUpgrade linux-image-azure-nvidia-6.14Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-5.15.0-1096-azure-fipsUpgrade linux-image-generic-64k-5.15Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-generic-64k-6.8Upgrade linux-image-5.15.0-156-lowlatency-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-realtime-5.15Upgrade linux-image-5.15.0-1092-aws-fipsUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-realtime-6.14Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-oem-6.14Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-raspi-nolpaeUpgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-gcp-64k-6.14Upgrade linux-image-6.14.0-1015-aws-64kUpgrade linux-image-azure-fips-6.8Upgrade linux-image-aws-64k-6.14Upgrade linux-image-aws-5.15Upgrade linux-image-azure-fipsUpgrade linux-image-awsUpgrade linux-image-aws-64k-6.8Upgrade linux-image-gcp-5.15Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-fips-6.8Upgrade linux-image-gke-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-fipsUpgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-nvidia-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-intelUpgrade linux-image-gke-6.8Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-5.15.0-1056-xilinx-zynqmpUpgrade linux-image-azure-lts-24.04Upgrade linux-image-virtual-6.8Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-5.15.0-1045-nvidia-tegra-rtUpgrade linux-image-nvidiaUpgrade linux-image-oem-24.04Upgrade linux-image-lowlatency-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-generic-64kUpgrade linux-image-generic-5.15Upgrade linux-image-genericUpgrade linux-image-gcp-fips-5.15Upgrade linux-image-5.15.0-1092-awsUpgrade linux-image-5.15.0-1092-gcp-fipsUpgrade linux-image-6.8.0-1046-awsUpgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-generic-lpae-5.15Upgrade linux-image-5.15.0-1075-gkeopUpgrade linux-image-oem-24.04bUpgrade linux-image-azure-nvidiaUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-gke-5.15Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-oracle-5.15Upgrade linux-image-azure-6.14Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-6.8.0-1046-azureUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-5.15.0-156-fipsUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-5.15.0-1092-aws-64kUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-azureUpgrade linux-image-aws-fipsUpgrade linux-image-6.14.0-1007-azure-nvidiaUpgrade linux-image-5.15.0-156-lowlatencyUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-gcp-6.14Upgrade linux-image-azure-6.8Upgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-6.14.0-1015-oracleUpgrade linux-image-6.14.0-1014-oemUpgrade linux-image-realtime-hwe-22.04Upgrade 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-nvidia-64k-hwe-22.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-azure-fips-5.15Upgrade linux-image-oem-22.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-5.15.0-1089-gkeUpgrade linux-image-5.15.0-1087-nvidia-lowlatencyUpgrade linux-image-raspiUpgrade linux-image-6.14.0-1015-oracle-64kUpgrade linux-image-aws-64kUpgrade linux-image-gkeUpgrade linux-image-6.14.0-1018-gcp-64kUpgrade linux-image-5.15.0-156-generic-lpaeUpgrade linux-image-raspi-6.14Upgrade linux-image-nvidia-5.15Upgrade linux-image-nvidia-tegraUpgrade linux-image-6.8.0-100-genericUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-6.14.0-34-genericUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-5.15.0-1096-azureUpgrade linux-image-ibm-5.15Upgrade linux-image-6.14.0-1014-realtimeUpgrade linux-image-gkeopUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-generic-lpaeUpgrade linux-image-oem-22.04aUpgrade linux-image-ibmUpgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-aws-fips-5.15Upgrade linux-image-aws-6.8Upgrade linux-image-6.14.0-34-generic-64kUpgrade linux-image-5.15.0-1085-intel-iot-realtimeUpgrade linux-image-intel-iotgUpgrade linux-image-5.15.0-1090-oracleUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-kvm-5.15Upgrade linux-image-realtime-6.8.1Upgrade linux-image-oracle-lts-24.04 | 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 |
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