Bugzilla – Bug 1224563
VUL-0: CVE-2024-35987: kernel: riscv: Fix loading 64-bit NOMMU kernels past the start of RAM
Last modified: 2024-05-28 09:46:32 UTC
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: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-35987 https://www.cve.org/CVERecord?id=CVE-2024-35987 https://git.kernel.org/stable/c/aea702dde7e9876fb00571a2602f25130847bf0f https://git.kernel.org/stable/c/b008e327fa570aca210f98c817757649bae56694 https://git.kernel.org/stable/c/ea6628e4e2353978af7e3b4ad4fdaab6149acf3d https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-35987.mbox
https://www.suse.com/security/cve/CVE-2024-35987.html cvss 5.5
We do NOT official support RISCV. Should we handle this CVE issue?
riscv unsupported, closing