cve-2024-35987
Vulnerability from cvelistv5
Published
2024-05-20 09:47
Modified
2024-12-19 08:59
Severity ?
EPSS score ?
0.12% (0.27685)
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aea702dde7e9876fb00571a2602f25130847bf0f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b008e327fa570aca210f98c817757649bae56694
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ea6628e4e2353978af7e3b4ad4fdaab6149acf3d
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/aea702dde7e9876fb00571a2602f25130847bf0f
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b008e327fa570aca210f98c817757649bae56694
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ea6628e4e2353978af7e3b4ad4fdaab6149acf3d
Impacted products
Vendor Product Version
Linux Linux Version: 3335068f87217ea59d08f462187dc856652eea15
Version: 3335068f87217ea59d08f462187dc856652eea15
Version: 3335068f87217ea59d08f462187dc856652eea15
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   Linux Linux Version: 6.4
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