In the Linux kernel, the following vulnerability has been resolved:
MIPS: Don't crash in stack_top() for tasks without ABI or vDSO
Not all tasks have an ABI associated or vDSO mapped, for example kthreads never do. If such a task ever ends up calling stack_top(), it will derefence the NULL ABI pointer and crash.
This can for example happen when using kunit:
mips_stack_top+0x28/0xc0 arch_pick_mmap_layout+0x190/0x220 kunit_vm_mmap_init+0xf8/0x138 __kunit_add_resource+0x40/0xa8 kunit_vm_mmap+0x88/0xd8 usercopy_test_init+0xb8/0x240 kunit_try_run_case+0x5c/0x1a8 kunit_generic_run_threadfn_adapter+0x28/0x50 kthread+0x118/0x240 ret_from_kernel_thread+0x14/0x1c
Only dereference the ABI point if it is set.
The GIC page is also included as it is specific to the vDSO. Also move the randomization adjustment into the same conditional.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux-6.1Upgrade linux | Sep 25, 2025 | Sep 25, 2025 |
| Ubuntu | — | Upgrade linux-image-5.15.0-1097-gcpUpgrade linux-image-oem-20.04dUpgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-5.15.0-1089-kvmUpgrade linux-image-5.15.0-1089-intel-iot-realtimeUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-lowlatency-5.15Upgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-oem-22.04Upgrade linux-image-xilinxUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-5.15.0-1097-aws-fipsUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-generic-64kUpgrade linux-image-gkeUpgrade linux-image-gcpUpgrade linux-image-lowlatency-64kUpgrade linux-image-5.15.0-1092-nvidia-lowlatencyUpgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-azure-lts-22.04Upgrade linux-image-nvidia-5.15Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-gke-64k-6.8Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-nvidia-tegraUpgrade linux-image-oem-22.04cUpgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-kvm-5.15Upgrade linux-image-gke-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-generic-lpae-5.15Upgrade linux-image-5.15.0-1061-xilinx-zynqmpUpgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-5.15.0-1092-nvidiaUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-oracle-64kUpgrade linux-image-azure-fips-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-realtime-5.15Upgrade linux-image-5.15.0-1102-azureUpgrade linux-image-genericUpgrade linux-image-intel-iotgUpgrade linux-image-5.15.0-1091-raspiUpgrade linux-image-nvidiaUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-fips-5.15Upgrade linux-image-5.15.0-1093-gkeUpgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-1092-intel-iotgUpgrade linux-image-5.15.0-1101-azure-fipsUpgrade linux-image-5.15.0-163-fipsUpgrade linux-image-5.15.0-163-genericUpgrade linux-image-oem-20.04cUpgrade linux-image-aws-5.15Upgrade linux-image-oracle-6.8Upgrade linux-image-gkeopUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-5.15.0-1038-nvidia-tegra-igxUpgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-oem-20.04bUpgrade linux-image-raspi-5.15Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-oem-20.04Upgrade linux-image-azure-fips-5.15Upgrade linux-image-realtimeUpgrade linux-image-5.15.0-163-generic-64kUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-gkeop-5.15Upgrade linux-image-virtualUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-raspi-realtimeUpgrade linux-image-5.15.0-1097-awsUpgrade linux-image-aws-64kUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-nvidia-64kUpgrade linux-image-intelUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.8.0-1046-azureUpgrade linux-image-fips-6.8Upgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-5.15.0-1094-oracleUpgrade linux-image-raspiUpgrade linux-image-oem-22.04aUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-ibm-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-lowlatency-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1046-awsUpgrade linux-image-azure-fipsUpgrade linux-image-aws-lts-22.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-aws-fips-5.15Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-aws-64k-6.8Upgrade linux-image-5.15.0-1049-nvidia-tegraUpgrade linux-image-virtual-6.8Upgrade linux-image-realtime-6.8.1Upgrade linux-image-5.15.0-1038-nvidia-tegra-igx-rtUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-aws-fipsUpgrade linux-image-5.15.0-1097-aws-64kUpgrade linux-image-5.15.0-163-lowlatencyUpgrade linux-image-5.15.0-163-lowlatency-64kUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-ibmUpgrade linux-image-aws-64k-5.15Upgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-gcp-fipsUpgrade linux-image-fipsUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-5.15.0-1096-realtimeUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-5.15.0-1091-ibmUpgrade linux-image-oem-22.04bUpgrade linux-image-5.15.0-1101-azureUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-5.15.0-163-generic-lpaeUpgrade linux-image-gke-5.15Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-generic-64k-6.8Upgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-ibm-classicUpgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-6.8.0-100-genericUpgrade linux-image-gke-64kUpgrade linux-image-azureUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-azure-cvmUpgrade linux-image-virtual-5.15Upgrade linux-image-azure-lts-24.04Upgrade linux-image-5.15.0-1080-gkeopUpgrade linux-image-aws-lts-24.04Upgrade linux-image-gcp-5.15Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-raspi-nolpaeUpgrade linux-image-oracleUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-6.8Upgrade linux-image-ibm-5.15Upgrade linux-image-gcp-6.8Upgrade linux-image-azure-5.15Upgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-5.15.0-1049-nvidia-tegra-rtUpgrade linux-image-raspi-6.8Upgrade linux-image-nvidia-tegra-igxUpgrade linux-image-generic-64k-5.15Upgrade linux-image-generic-5.15Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-5.15.0-1097-gcp-fipsUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-oracle-5.15Upgrade linux-image-xilinx-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-aws | Dec 5, 2025 | Sep 4, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 19, 2025 | Sep 4, 2025 |
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