CVE-2021-47640

CVE-2021-47640 describes a Linux kernel vulnerability in the powerpc/KASAN pathway where the shadow page table was not updated correctly when PTE_RPN_SHIFT = 24 and PAGE_SHIFT = 12. The issue caused false positives and false negatives in KASAN reports (vmalloc-out-of-bounds in pcpu_alloc) and was...

CVE-2021-47640 powerpc/kasan: Fix early region not updated correctly

In the Linux kernel, the following vulnerability has been resolved: powerpc/kasan: Fix early region not updated correctly The shadow's page table is not updated when PTERPNSHIFT is 24 and PAGESHIFT is 12. It not only causes false positives but also false negative as shown the following text. Fix ...

CVE-2021-47632

CVE-2021-47632 affects the Linux kernel on PowerPC where a spin_lock in change_page_attr() for set_memory caused spinlock recursion. The fix removes the read/modify/write sequence and the spin_lock(), and uses atomic handling of page-flag sets (_PAGE_KERNEL_RO/ROX/RW/RWX) by comparing flag sets t...

CVE-2021-47632 powerpc/set_memory: Avoid spinlock recursion in change_page_attr()

In the Linux kernel, the following vulnerability has been resolved: powerpc/setmemory: Avoid spinlock recursion in changepageattr Commit 1f9ad21c3b38 "powerpc/mm: Implement setmemory routines" included a spinlock to changepageattr in order to safely perform the three step operations. But then...

CVE-2021-47632 powerpc/set_memory: Avoid spinlock recursion in change_page_attr()

In the Linux kernel, the following vulnerability has been resolved: powerpc/setmemory: Avoid spinlock recursion in changepageattr Commit 1f9ad21c3b38 "powerpc/mm: Implement setmemory routines" included a spinlock to changepageattr in order to safely perform the three step operations. But then...

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 originates from a refcount leak in powerpc/secvar...

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, which stems from the possibility that powerpc/tm may be overwritten by SLB miss when processing user r13 in trechkpt,...

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 a reference count leak in icpopalinit in the powerpc xics module...

PT-2025-7951 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.15.0-12267-gdebe436e77c7 Description: The issue is related to the powerpc/kasan component of the Linux kernel, where the shadow's page table is not updated correctly when PTE RPN SHIFT is 24 and PAGE SHIFT is...

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 originates from an addpages override in powerpc/memhotplug that causes BUGON...

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 a missing ofnodeput of iommuinitearlydart in the powerpc iommu module...

Siemens SCALANCE Devices Out-of-bounds Write (CVE-2023-6129)

Issue summary: The POLY1305 MAC message authentication code implementation contains a bug that might corrupt the internal state of applications running on PowerPC CPU based platforms if the CPU provides vector instructions. Impact summary: If an attacker can influence whether the POLY1305 MAC...

TFTP Fetch

Fetch and execute an PPC payload from an TFTP server. Module Options msf use payload/cmd/linux/tftp/ppc/meterpreterreversetcp msf payloadmeterpreterreversetcp show actions ...actions... msf payloadmeterpreterreversetcp set ACTION msf payloadmeterpreterreversetcp show options ...show and set...

TFTP Fetch

Fetch and execute an PPC payload from an TFTP server. Module Options msf use payload/cmd/linux/tftp/ppc/meterpreterreversehttps msf payloadmeterpreterreversehttps show actions ...actions... msf payloadmeterpreterreversehttps set ACTION msf payloadmeterpreterreversehttps show options ...show and s...

USN-7277-1 linux-aws, linux-azure, linux-gcp, linux-oracle, linux-raspi, linux-realtime vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - RISC-V architecture; - S390 architecture; -...

USN-7277-1: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - RISC-V architecture; - S390 architecture; -...

USN-7276-1: Linux kernel vulnerabilities

Attila Szász discovered that the HFS+ file system implementation in the Linux Kernel contained a heap overflow vulnerability. An attacker could use a specially crafted file system image that, when mounted, could cause a denial of service system crash or possibly execute arbitrary code...

SUSE CVE-2023-52499

In the Linux kernel, the following vulnerability has been resolved: powerpc/47x: Fix 47x syscall return crash Eddie reported that newer kernels were crashing during boot on his 476 FSP2 system: kernel tried to execute user page b7ee2000 - exploit attempt? uid: 0 BUG: Unable to handle kernel...

The vulnerability of the eeh_pe_bus_get() function (arch/powerpc/kernel/eeh_pe.c) in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the eehpebusget function arch/powerpc/kernel/eehpe.c in the Linux operating system is related to improper locking of resources. Exploiting this vulnerability could allow an attacker to cause a service failure...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries/iommu: The LPAR panics during bootup due to a frozen PE. During the LPAR bootup, the partition firmware provides the ibm,dma-window property for the PE. This property is provided on the PCI bus to which the PE is...