In the Linux kernel, the following vulnerability has been resolved:
riscv: Fix loading 64-bit NOMMU kernels past the start of RAM
commit 3335068f8721 ("riscv: Use PUD/P4D/PGD pages for the linear mapping") added logic to allow using RAM below the kernel load address. However, this does not work for NOMMU, where PAGE_OFFSET is fixed to the kernel load address. Since that range of memory corresponds to PFNs below ARCH_PFN_OFFSET, mm initialization runs off the beginning of mem_map and corrupts adjacent kernel memory. Fix this by restoring the previous behavior for NOMMU kernels.
CVSS Details
- CVSS 3.1 Base Score: 8.4
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 20, 2024 |
| Ubuntu | — | Upgrade linux-image-6.8.0-1010-oracle-64kUpgrade linux-image-oem-24.04Upgrade linux-image-6.8.0-1010-ibmUpgrade linux-image-nvidia-6.8Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-gkeUpgrade linux-image-generic-64kUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1012-azureUpgrade linux-image-6.8.0-1008-gkeUpgrade linux-image-azureUpgrade linux-image-genericUpgrade linux-image-lowlatency-64kUpgrade linux-image-raspiUpgrade linux-image-6.8.0-40-lowlatencyUpgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-40-generic-64kUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1012-azure-fdeUpgrade linux-image-6.8.0-1013-awsUpgrade linux-image-oracleUpgrade linux-image-nvidiaUpgrade linux-image-6.8.0-40-genericUpgrade linux-image-6.8.0-1009-raspiUpgrade linux-image-6.8.0-1011-nvidia-64kUpgrade linux-image-ibmUpgrade linux-image-6.8.0-1011-nvidia-lowlatency-64kUpgrade linux-image-ibm-classicUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.8.0-1011-nvidiaUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-nvidia-64kUpgrade linux-image-lowlatencyUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1010-oracleUpgrade linux-image-6.8.0-1012-gcpUpgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-1010-oemUpgrade linux-image-oem-24.04aUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.8.0-40-lowlatency-64kUpgrade linux-image-kvmUpgrade linux-image-virtualUpgrade linux-image-awsUpgrade linux-image-gcpUpgrade linux-image-6.8.0-1011-nvidia-lowlatency | Aug 9, 2024 | May 20, 2024 |
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