In the Linux kernel, the following vulnerability has been resolved:
iommufd: Prevent ALIGN() overflow
When allocating IOVA the candidate range gets aligned to the target alignment. If the range is close to ULONG_MAX then the ALIGN() can wrap resulting in a corrupted iova.
Open code the ALIGN() using get_add_overflow() to prevent this. This simplifies the checks as we don't need to check for length earlier either.
Consolidate the two copies of this code under a single helper.
This bug would allow userspace to create a mapping that overlaps with some other mapping or a reserved range.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | Oct 16, 2025 | Sep 4, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Sep 4, 2025 |
| Ubuntu | — | Upgrade linux-image-lowlatency-64kUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-azure-lts-24.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-oracleUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-oem-22.04Upgrade linux-image-raspiUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-aws-fipsUpgrade linux-image-ibmUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-virtual-6.8Upgrade linux-image-gcp-6.8Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-gcp-64kUpgrade linux-image-lowlatencyUpgrade linux-image-gkeop-6.8Upgrade linux-image-awsUpgrade linux-image-gke-64kUpgrade linux-image-lowlatency-6.8Upgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-6.8.0-100-genericUpgrade linux-image-gcp-fipsUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.8.0-1046-azureUpgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-fipsUpgrade linux-image-generic-64k-6.8Upgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-realtimeUpgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-realtime-6.8.1Upgrade linux-image-azure-fipsUpgrade linux-image-generic-lpaeUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-6.8.0-1046-awsUpgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-intel-iotgUpgrade linux-image-aws-lts-24.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-oracle-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-gcpUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-raspi-realtimeUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-genericUpgrade linux-image-aws-6.8Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-oracle-64kUpgrade linux-image-ibm-6.8Upgrade linux-image-azure-fips-6.8Upgrade linux-image-azureUpgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-nvidiaUpgrade linux-image-xilinx-6.8Upgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-azure-6.8Upgrade linux-image-oem-22.04cUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-gke-64k-6.8Upgrade linux-image-gkeopUpgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-ibm-classicUpgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-generic-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-aws-64kUpgrade linux-image-raspi-6.8Upgrade linux-image-kvmUpgrade linux-image-aws-fips-6.8Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-fips-6.8Upgrade linux-image-gkeUpgrade linux-image-xilinxUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-virtualUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-oem-22.04bUpgrade linux-image-aws-64k-6.8Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-1043-gke | Feb 12, 2026 | Sep 4, 2025 |
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