github - ghsa-gvc6-jh6p-v6h4

ghsa-gvc6-jh6p-v6h4

Vulnerability from github

Published

2024-05-20 12:30

Modified

2024-05-20 12:30

Details

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.

Show details on source website

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  "aliases": [
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    "github_reviewed_at": null,
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    "severity": null
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  "id": "GHSA-gvc6-jh6p-v6h4",
  "modified": "2024-05-20T12:30:29Z",
  "published": "2024-05-20T12:30:29Z",
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  "schema_version": "1.4.0",
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cve-2024-35987

Vulnerability from cvelistv5

Published

2024-05-20 09:47

Modified

2024-08-02 03:30

Severity

Summary

riscv: Fix loading 64-bit NOMMU kernels past the start of RAM

References

URL	Tags
https://git.kernel.org/stable/c/b008e327fa570aca210f98c817757649bae56694
https://git.kernel.org/stable/c/ea6628e4e2353978af7e3b4ad4fdaab6149acf3d
https://git.kernel.org/stable/c/aea702dde7e9876fb00571a2602f25130847bf0f

Impacted products

Vendor	Product
Linux	Linux
Linux	Linux

Show details on NVD website

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