In the Linux kernel, the following vulnerability has been resolved:
x86/sgx: Fix deadlock in SGX NUMA node search
When the current node doesn't have an EPC section configured by firmware and all other EPC sections are used up, CPU can get stuck inside the while loop that looks for an available EPC page from remote nodes indefinitely, leading to a soft lockup. Note how nid_of_current will never be equal to nid in that while loop because nid_of_current is not set in sgx_numa_mask.
Also worth mentioning is that it's perfectly fine for the firmware not to setup an EPC section on a node. While setting up an EPC section on each node can enhance performance, it is not a requirement for functionality.
Rework the loop to start and end on *a* node that has SGX memory. This avoids the deadlock looking for the current SGX-lacking node to show up in the loop when it never will.
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 linux-6.1Upgrade linux | Nov 11, 2024 | Oct 21, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade python3-perfUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel | Feb 11, 2025 | Oct 21, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernel | Feb 11, 2025 | Oct 21, 2024 |
| Redhat_linux | — | No solution existsUpgrade kernel-rtUpgrade kernel | May 15, 2025 | Oct 21, 2024 |
| Ubuntu | — | Upgrade linux-image-gkeUpgrade linux-image-oem-20.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-5.15.0-1071-intel-iotgUpgrade linux-image-5.15.0-1070-kvmUpgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-1024-oemUpgrade linux-image-gkeopUpgrade linux-image-gkeop-5.15Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-aws-lts-24.04Upgrade linux-image-6.8.0-1025-azureUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.8.0-1022-nvidia-lowlatencyUpgrade linux-image-6.8.0-1022-nvidia-64kUpgrade linux-image-5.15.0-127-genericUpgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-azure-cvmUpgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-1019-raspiUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.8.0-57-generic-64kUpgrade linux-image-6.8.0-1020-oracle-64kUpgrade linux-image-virtualUpgrade linux-image-5.15.0-1056-gkeopUpgrade linux-image-6.8.0-57-genericUpgrade linux-image-5.15.0-1066-ibmUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-oem-24.04bUpgrade linux-image-realtimeUpgrade linux-image-oracleUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-oem-24.04Upgrade linux-image-5.15.0-1072-gcpUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-5.15.0-127-generic-lpaeUpgrade linux-image-oem-22.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-genericUpgrade linux-image-intelUpgrade linux-image-6.11.0-18-genericUpgrade linux-image-6.8.0-1020-oracleUpgrade linux-image-oem-24.04aUpgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-54-generic-64kUpgrade linux-image-6.11.0-1009-awsUpgrade linux-image-6.11.0-1015-oemUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-gke-5.15Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-6.8.0-1023-awsUpgrade linux-image-oracle-64kUpgrade linux-image-azure-lts-24.04Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-6.8.0-1024-gcp-64kUpgrade linux-image-6.8.0-1024-gcpUpgrade linux-image-5.15.0-1073-awsUpgrade linux-image-5.15.0-127-lowlatencyUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-oem-20.04dUpgrade linux-image-raspiUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1019-gkeUpgrade linux-image-6.8.0-54-lowlatencyUpgrade linux-image-azure-lts-22.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-awsUpgrade linux-image-6.8.0-1022-nvidia-lowlatency-64kUpgrade linux-image-gcpUpgrade linux-image-ibm-classicUpgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-5.15.0-1070-gkeUpgrade linux-image-oem-20.04cUpgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-azure-fdeUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-6.8.0-1025-azure-fdeUpgrade linux-image-ibmUpgrade linux-image-azure-nvidiaUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-6.8.0-54-lowlatency-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-kvmUpgrade linux-image-oem-22.04bUpgrade linux-image-5.15.0-127-generic-64kUpgrade linux-image-5.15.0-1039-xilinx-zynqmpUpgrade linux-image-lowlatencyUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1014-azure-nvidiaUpgrade linux-image-6.8.0-54-genericUpgrade linux-image-generic-lpaeUpgrade linux-image-5.15.0-1071-oracleUpgrade linux-image-5.15.0-1066-raspiUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-oem-20.04bUpgrade linux-image-6.8.0-1022-ibmUpgrade linux-image-6.8.0-1022-nvidiaUpgrade linux-image-gcp-64kUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-5.15.0-1068-nvidiaUpgrade linux-image-6.11.0-1009-azureUpgrade linux-image-azureUpgrade linux-image-raspi-nolpaeUpgrade linux-image-generic-64kUpgrade linux-image-nvidiaUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-5.15.0-1068-nvidia-lowlatencyUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-5.15.0-127-lowlatency-64kUpgrade linux-image-oem-22.04cUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.8.0-1006-gkeopUpgrade linux-image-5.15.0-1078-azure | Dec 18, 2024 | Oct 21, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2025 | Oct 21, 2024 |
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