kernel: arm64: acpi: Harden get_cpu_for_acpi_id() against missing CPU entry

A flaw was found in the Linux kernel, specifically within the ACPI Advanced Configuration and Power Interface CPU hotplug functionality. This vulnerability occurs when the system attempts to retrieve CPU information, and a missing CPU entry can lead to a NULL pointer dereference. A local attacker...

kernel: x86/mm: Randomize per-cpu entry area

A possible unauthorized memory access flaw was found in the Linux kernel cpuentryarea mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. This issue could allow a local user to gain access to some important data with expected locatio...

DEBIAN-CVE-2024-46822

In the Linux kernel, the following vulnerability has been resolved: arm64: acpi: Harden getcpuforacpiid against missing CPU entry In a review discussion of the changes to support vCPU hotplug where a check was added on the GICC being enabled if was online, it was noted that there is need to map...

Linux kernel 安全漏洞

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel, which stems from the possibility of a memory leak in the mapping of X86 CPU data to memory in cpuentryarea, which allows a user to guess the location ...