97 matches found
kernel: x86/mm: Ensure input to pfn_to_kaddr() is treated as a 64-bit type
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...
mm: avoid leaving partial pfn mappings around in error case
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kernel: mm/sparsemem: fix race in accessing memory_section->usage
A race condition was found on a PFN in the Linux Kernel, which can fall into the device memory region with the system memory configuration. Normal zone start and end PFNs contain the device memory PFNs as well, and the compaction triggered will try on the device memory PFNs and end up in NOP. Thi...
SUSE CVE-2024-47674
In the Linux kernel, the following vulnerability has been resolved: mm: avoid leaving partial pfn mappings around in error case As Jann points out, PFN mappings are special, because unlike normal memory mappings, there is no lifetime information associated with the mapping - it is just a raw...
Linux kernel 安全漏洞
Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the mm module leaving part of the pfn mapping behind under certain circumstances...
kernel: mm: prevent derefencing NULL ptr in pfn_section_valid()
In the Linux kernel, the following vulnerability has been resolved: mm: prevent derefencing NULL ptr in pfnsectionvalid Commit 5ec8e8ea8b77 "mm/sparsemem: fix race in accessing memorysection-usage" changed pfnsectionvalid to add a READONCE call around "ms-usage" to fix a race with sectiondeactiva...
kernel: x86/mm/pat: fix VM_PAT handling in COW mappings
CVE-2024-35877 pertains to a flaw in the Linux kernel's handling of Page Attribute Table PAT settings during Copy-On-Write COW operations. When a write operation triggers a COW event, the kernel may replace the original page table entries PTEs with anonymous folios. This replacement disrupts the...
kernel: mm/sparsemem: fix race in accessing memory_section->usage
A race condition was found on a PFN in the Linux Kernel, which can fall into the device memory region with the system memory configuration. Normal zone start and end PFNs contain the device memory PFNs as well, and the compaction triggered will try on the device memory PFNs and end up in NOP. Thi...
kernel: x86/mm/pat: fix VM_PAT handling in COW mappings
CVE-2024-35877 pertains to a flaw in the Linux kernel's handling of Page Attribute Table PAT settings during Copy-On-Write COW operations. When a write operation triggers a COW event, the kernel may replace the original page table entries PTEs with anonymous folios. This replacement disrupts the...
x86/mm: Ensure input to pfn_to_kaddr() is treated as a 64-bit type
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AZL-47994 CVE-2024-41055 affecting package kernel for versions less than 5.15.164.1-1
In the Linux kernel, the following vulnerability has been resolved: mm: prevent derefencing NULL ptr in pfnsectionvalid Commit 5ec8e8ea8b77 "mm/sparsemem: fix race in accessing memorysection-usage" changed pfnsectionvalid to add a READONCE call around "ms-usage" to fix a race with sectiondeactiva...
DEBIAN-CVE-2024-41055
In the Linux kernel, the following vulnerability has been resolved: mm: prevent derefencing NULL ptr in pfnsectionvalid Commit 5ec8e8ea8b77 "mm/sparsemem: fix race in accessing memorysection-usage" changed pfnsectionvalid to add a READONCE call around "ms-usage" to fix a race with sectiondeactiva...
UBUNTU-CVE-2024-38610
In the Linux kernel, the following vulnerability has been resolved: drivers/virt/acrn: fix PFNMAP PTE checks in acrnvmrammap Patch series "mm: followpte improvements and acrn followpte fixes". Patch 1 fixes a bunch of issues I spotted in the acrn driver. It compiles, that's all I know. I'll...
SUSE CVE-2024-26795
In the Linux kernel, the following vulnerability has been resolved: riscv: Sparse-Memory/vmemmap out-of-bounds fix Offset vmemmap so that the first page of vmemmap will be mapped to the first page of physical memory in order to ensure that vmemmap's bounds will be respected during...
kernel: mm/sparsemem: fix race in accessing memory_section->usage
A race condition was found on a PFN in the Linux Kernel, which can fall into the device memory region with the system memory configuration. Normal zone start and end PFNs contain the device memory PFNs as well, and the compaction triggered will try on the device memory PFNs and end up in NOP. Thi...
UBUNTU-CVE-2024-35987
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...
DEBIAN-CVE-2024-26947
In the Linux kernel, the following vulnerability has been resolved: ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses Since commit a4d5613c4dc6 "arm: extend pfnvalid to take into account freed memory map alignment" changes the semantics of pfnvalid to check presence of t...
kernel: mm/sparsemem: fix race in accessing memory_section->usage
A race condition was found on a PFN in the Linux Kernel, which can fall into the device memory region with the system memory configuration. Normal zone start and end PFNs contain the device memory PFNs as well, and the compaction triggered will try on the device memory PFNs and end up in NOP. Thi...
DEBIAN-CVE-2024-26795
In the Linux kernel, the following vulnerability has been resolved: riscv: Sparse-Memory/vmemmap out-of-bounds fix Offset vmemmap so that the first page of vmemmap will be mapped to the first page of physical memory in order to ensure that vmemmap’s bounds will be respected during...
SUSE CVE-2023-52489
In the Linux kernel, the following vulnerability has been resolved: mm/sparsemem: fix race in accessing memorysection-usage The below race is observed on a PFN which falls into the device memory region with the system memory configuration where PFN's are such that ZONENORMAL ZONEDEVICE ZONENORMAL...