Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: x86/mm: Ensure that the input to pfntokaddr is treated as a 64-bit type. On 64-bit platforms, the pfntokaddr macro requires that the input value be 64 bits. This ensures that valid address bits are not lost when shifting the...

CVE-2023-52659

A vulnerability in the Linux kernel affected the x86/mm code, specifically in the pfntokaddr macro. The issue arises when the macro does not correctly handle input as a 64-bit type, causing crashes on 64-bit platforms, especially for SEV-SNP guests, when processing addresses above the 1TB range...

CVE-2023-52659

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Ensure input to pfntokaddr is treated as a 64-bit type On 64-bit platforms, the pfntokaddr macro requires that the input value is 64 bits in order to ensure that valid address bits don't get lost when shifting that input ...

CVE-2023-52659

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Ensure input to pfntokaddr is treated as a 64-bit type On 64-bit platforms, the pfntokaddr macro requires that the input value is 64 bits in order to ensure that valid address bits don't get lost when shifting that input ...

CVE-2023-52659

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Ensure input to pfntokaddr is treated as a 64-bit type On 64-bit platforms, the pfntokaddr macro requires that the input value is 64 bits in order to ensure that valid address bits don't get lost when shifting that input ...

CVE-2023-52659 x86/mm: Ensure input to pfn_to_kaddr() is treated as a 64-bit type

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Ensure input to pfntokaddr is treated as a 64-bit type On 64-bit platforms, the pfntokaddr macro requires that the input value is 64 bits in order to ensure that valid address bits don't get lost when shifting that input ...

CVE-2023-52659

CVE-2023-52659 affects the Linux kernel 64-bit builds where the pfn_to_kaddr() macro may lose address bits when shifting a 40-bit GFN, causing guest crashes in SEV-SNP environments. The fix introduces an inline function to implicitly cast inputs to a 64-bit type before the shift, replacing the pr...