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.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Sep 25, 2025 | Sep 25, 2025 |
| Ubuntu | — | Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-5.15.0-1092-intel-iotgUpgrade linux-image-oem-20.04dUpgrade linux-image-5.15.0-1101-azure-fipsUpgrade linux-image-5.15.0-1038-nvidia-tegra-igxUpgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-lowlatency-5.15Upgrade linux-image-5.15.0-1091-raspiUpgrade linux-image-5.15.0-1097-gcpUpgrade linux-image-5.15.0-1089-intel-iot-realtimeUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-1097-aws-fipsUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-5.15.0-1061-xilinx-zynqmpUpgrade linux-image-generic-lpae-5.15Upgrade linux-image-5.15.0-163-fipsUpgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-aws-5.15Upgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-realtime-5.15Upgrade linux-image-xilinxUpgrade linux-image-oracle-6.8Upgrade linux-image-5.15.0-1089-kvmUpgrade linux-image-5.15.0-1102-azureUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-oem-20.04bUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-5.15.0-163-genericUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-gkeopUpgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-fips-5.15Upgrade linux-image-intel-iotgUpgrade linux-image-nvidiaUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-gkeop-5.15Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-5.15.0-1093-gkeUpgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-oem-20.04cUpgrade linux-image-5.15.0-1092-nvidiaUpgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-genericUpgrade linux-image-realtimeUpgrade linux-image-oem-20.04Upgrade linux-image-5.15.0-163-generic-64kUpgrade linux-image-oem-22.04Upgrade linux-image-raspi-realtimeUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-nvidia-tegraUpgrade linux-image-gke-64k-6.8Upgrade linux-image-5.15.0-1092-nvidia-lowlatencyUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-kvm-5.15Upgrade linux-image-gkeUpgrade linux-image-gke-6.8Upgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-6.8.0-1046-azureUpgrade linux-image-azure-fips-5.15Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-fips-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-intelUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-5.15.0-1097-awsUpgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-aws-64kUpgrade linux-image-virtualUpgrade linux-image-nvidia-5.15Upgrade linux-image-raspi-5.15Upgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-lowlatencyUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-oracle-64kUpgrade linux-image-oem-22.04cUpgrade linux-image-azure-lts-22.04Upgrade linux-image-gcpUpgrade linux-image-lowlatency-64kUpgrade linux-image-generic-64kUpgrade linux-image-ibm-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-azure-5.15Upgrade linux-image-aws-fipsUpgrade linux-image-kvmUpgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-aws-64k-6.8Upgrade linux-image-6.8.0-1046-awsUpgrade linux-image-realtime-6.8.1Upgrade linux-image-oracleUpgrade linux-image-aws-lts-24.04Upgrade linux-image-oracle-5.15Upgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-5.15.0-1101-azureUpgrade linux-image-5.15.0-1091-ibmUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-oem-22.04bUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-gke-5.15Upgrade linux-image-generic-64k-6.8Upgrade linux-image-azureUpgrade linux-image-lowlatency-6.8Upgrade linux-image-raspi-6.8Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-aws-64k-5.15Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-1038-nvidia-tegra-igx-rtUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-ibmUpgrade linux-image-aws-fips-5.15Upgrade linux-image-gcp-fipsUpgrade linux-image-fipsUpgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-100-genericUpgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-5.15.0-163-generic-lpaeUpgrade linux-image-5.15.0-1096-realtimeUpgrade linux-image-virtual-5.15Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-azure-cvmUpgrade linux-image-gke-64kUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-ibm-classicUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-5.15.0-1049-nvidia-tegra-rtUpgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-gcp-5.15Upgrade linux-image-azure-lts-24.04Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-generic-64k-5.15Upgrade linux-image-generic-5.15Upgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-5.15.0-1097-gcp-fipsUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-generic-6.8Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-5.15.0-163-lowlatency-64kUpgrade linux-image-5.15.0-1097-aws-64kUpgrade linux-image-5.15.0-1049-nvidia-tegraUpgrade linux-image-raspi-nolpaeUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-xilinx-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-5.15.0-163-lowlatencyUpgrade linux-image-virtual-6.8Upgrade linux-image-ibm-5.15Upgrade linux-image-gcp-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-awsUpgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-5.15.0-1094-oracleUpgrade linux-image-5.15.0-1080-gkeopUpgrade linux-image-raspiUpgrade linux-image-oem-22.04aUpgrade linux-image-nvidia-tegra-igx | 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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