In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes
[WHY] When PTEBufferSizeInRequests is zero, UBSAN reports the following warning because dml_log2 returns an unexpected negative value:
shift exponent 4294966273 is too large for 32-bit type 'int'
[HOW]
In the case PTEBufferSizeInRequests is zero, skip the dml_log2() and assign the result directly.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | May 5, 2025 | May 2, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 2, 2025 |
| Ubuntu | — | Upgrade linux-nvidiaUpgrade linux-xilinx-zynqmpUpgrade linux-gkeopUpgrade linux-gcpUpgrade linux-azure-5.15Upgrade linuxUpgrade linux-intel-iot-realtimeUpgrade linux-ibmUpgrade linux-intel-iotgUpgrade linux-oracleUpgrade linux-riscv-5.15Upgrade linux-kvmUpgrade linux-nvidia-tegra-igxUpgrade linux-oracle-5.15Upgrade linux-awsUpgrade linux-gkeUpgrade linux-nvidia-tegraUpgrade linux-realtimeUpgrade linux-raspiUpgrade linux-aws-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-lowlatencyUpgrade linux-gcp-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linux-azureUpgrade linux-intel-iotg-5.15Upgrade linux-bluefieldUpgrade linux-ibm-5.15Upgrade linux-hwe-5.15 | May 8, 2025 | May 2, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | May 2, 2025 |
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