In the Linux kernel, the following vulnerability has been resolved:
octeontx2-pf: avoid double free of pool->stack on AQ init failure
otx2_pool_aq_init() frees pool->stack when mailbox sync or retry allocation fails, but leaves the pointer unchanged. Later, otx2_sq_aura_pool_init() unwinds the partial setup through otx2_aura_pool_free(), which frees pool->stack again. The CN20K-specific cn20k_pool_aq_init() implementation has the same bug in its corresponding error path.
Set pool->stack to NULL immediately after the local free so the shared cleanup path does not free the same stack again while cleaning up partially initialized pool state.
The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc3.
Runtime validation was not performed because reproducing this path requires OcteonTX2/CN20K hardware.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 26, 2026 | Jul 26, 2026 |
| Redhat_linux | — | No solution exists | Jul 30, 2026 | Jul 24, 2026 |
| Ubuntu | — | Upgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-1063-oracle-64kUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-azure-5.15Upgrade linux-image-5.15.0-1117-aws-64kUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-virtual-5.15Upgrade linux-image-7.0.0-1014-azureUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-aws-64kUpgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-5.15.0-1112-nvidiaUpgrade linux-image-6.8.0-1036-nvidia-tegraUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-1070-gcp-64kUpgrade linux-image-6.8.0-1068-azure-fdeUpgrade linux-image-5.15.0-1109-kvmUpgrade linux-image-aws-5.15Upgrade linux-image-fips-6.8Upgrade linux-image-oem-20.04dUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-oem-20.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-5.15.0-1118-gcpUpgrade linux-image-awsUpgrade linux-image-aws-fips-6.8Upgrade linux-image-virtualUpgrade linux-image-azure-7.0Upgrade linux-image-azure-cvmUpgrade linux-image-gcp-7.0Upgrade linux-image-raspi-7.0Upgrade linux-image-azure-fde-5.15Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-1070-gcp-fipsUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-lowlatency-5.15Upgrade linux-image-aws-64k-6.8Upgrade linux-image-lowlatency-6.8Upgrade linux-image-6.8.0-146-lowlatencyUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.8.0-146-fipsUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-oracle-6.8Upgrade linux-image-5.15.0-1112-nvidia-lowlatencyUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-aws-64k-5.15Upgrade linux-image-5.15.0-1080-xilinx-zynqmpUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-aws-lts-24.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-azure-fde-6.8Upgrade linux-image-fips-5.15Upgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-generic-64k-6.8Upgrade linux-image-6.8.0-1065-gke-64kUpgrade linux-image-6.8.0-146-generic-64kUpgrade linux-image-6.8.1-1061-realtimeUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-raspi-realtime-7.0Upgrade linux-image-oracleUpgrade linux-image-5.15.0-198-generic-lpaeUpgrade linux-image-5.15.0-1100-gkeopUpgrade linux-image-azure-fipsUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-6.8.0-1066-aws-fipsUpgrade linux-image-5.15.0-195-lowlatencyUpgrade linux-image-gcp-5.15Upgrade linux-image-azure-fips-6.8Upgrade linux-image-realtimeUpgrade linux-image-gkeUpgrade linux-image-6.8.0-1064-nvidia-lowlatency-64kUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1064-nvidiaUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-5.15.0-1117-awsUpgrade linux-image-6.8.0-146-genericUpgrade linux-image-generic-5.15Upgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-laptop-23.10Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-5.15.0-1122-azure-fdeUpgrade linux-image-aws-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-5.15.0-1117-aws-fipsUpgrade linux-image-5.15.0-1118-gcp-fipsUpgrade linux-image-5.15.0-1113-gkeUpgrade linux-image-6.8.0-1036-nvidia-tegra-rtUpgrade linux-image-oem-20.04cUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-intelUpgrade linux-image-kvm-5.15Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-6.8.0-1070-azureUpgrade linux-image-6.8.0-1066-ibmUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-5.15.0-198-genericUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-intel-iotg-5.15Upgrade linux-image-gkeop-6.8Upgrade linux-image-gke-5.15Upgrade linux-image-generic-64k-5.15Upgrade linux-image-oracle-64kUpgrade linux-image-azure-lts-22.04Upgrade linux-image-6.8.0-1070-gcpUpgrade linux-image-6.8.0-1066-aws-64kUpgrade linux-image-6.8.0-1064-nvidia-lowlatencyUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-raspiUpgrade linux-image-gkeopUpgrade linux-image-oracle-5.15Upgrade linux-image-gcp-64kUpgrade linux-image-oracle-7.0Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-lowlatencyUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-nvidia-64kUpgrade linux-image-gke-64kUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-aws-7.0Upgrade linux-image-aws-64k-7.0Upgrade linux-image-5.15.0-198-fipsUpgrade linux-image-5.15.0-1123-azure-fipsUpgrade linux-image-5.15.0-1111-ibmUpgrade linux-image-virtual-6.8Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-5.15.0-198-generic-64kUpgrade linux-image-5.15.0-1114-oracleUpgrade linux-image-5.15.0-1109-intel-iot-realtimeUpgrade linux-image-nvidia-bos-64kUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-6.8.0-1063-oracleUpgrade linux-image-generic-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-azureUpgrade linux-image-aws-fips-5.15Upgrade linux-image-aws-fipsUpgrade linux-image-5.15.0-195-lowlatency-64kUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-oem-20.04bUpgrade linux-image-nvidia-tegraUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-gke-64k-6.8Upgrade linux-image-generic-64kUpgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-gke-6.8Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidia-bosUpgrade linux-image-nvidiaUpgrade linux-image-lowlatency-64kUpgrade linux-image-generic-lpaeUpgrade linux-image-genericUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.8.0-1069-azure-fipsUpgrade linux-image-6.8.0-146-lowlatency-64kUpgrade linux-image-nvidia-7.0Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-ibm-classicUpgrade linux-image-azure-lts-24.04Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-nvidia-bos-7.0Upgrade linux-image-6.8.0-1051-gkeopUpgrade linux-image-5.15.0-1112-intel-iotgUpgrade linux-image-raspi-realtimeUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-azure-fips-5.15Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-6.8.0-1066-awsUpgrade linux-image-5.15.0-1116-realtimeUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-realtime-6.8.1Upgrade linux-image-realtime-5.15Upgrade linux-image-ibm-6.8Upgrade linux-image-ibm-5.15Upgrade linux-image-ibmUpgrade linux-image-generic-lpae-5.15Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-gcpUpgrade linux-image-fipsUpgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-azure-fdeUpgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-aws-lts-22.04Upgrade linux-image-7.0.0-1009-awsUpgrade linux-image-6.8.0-1065-gkeUpgrade linux-image-6.8.0-1064-nvidia-64kUpgrade linux-image-5.15.0-1123-azureUpgrade linux-image-nvidia-5.15 | Jul 28, 2026 | Jul 28, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 28, 2026 | Jul 24, 2026 |
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