CVE-2023-53706

Summary of CVE-2023-53706 : A Linux kernel vulnerability in mm/vmemmap/devdax caused a kernel crash during probing of devdax devices, linked to architecture-specific handling of vmemmap mappings. The root cause involved vmemmap_populate_compound_pages() not accounting for architecture-specific ma...

CVE-2023-53706 mm/vmemmap/devdax: fix kernel crash when probing devdax devices

In the Linux kernel, the following vulnerability has been resolved: mm/vmemmap/devdax: fix kernel crash when probing devdax devices commit 4917f55b4ef9 "mm/sparse-vmemmap: improve memory savings for compound devmaps" added support for using optimized vmmemap for devdax devices. But how vmemmap...

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 way vmemmap mappings are created without taking into account architecture-specific mappings, which could...

kernel: mm/vmemmap/devdax: fix kernel crash when probing devdax devices

A flaw was discovered in the device DAX devdax probing implementation of the Linux kernel memory management subsystem mm/vmemmap/devdax. Under specific architecture configurations for example POWER9 with hash MMU, the code path in vmemmappopulatecompoundpages did not properly account for...