The vulnerability of the `remove_phb_dynamic()` function in the `arch/powerpc/platforms/pseries/pci_dlpar.c` module exposes the security of PowerPC-based Linux operating systems, allowing attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the removephbdynamic function in the arch/powerpc/platforms/pseries/pcidlpar.c module relates to the use of memory after it is freed. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of protected information...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001356)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001356 advisory. A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down usually due to Secure Boot guest system running on to...

K61294700: Linux kernel vulnerability CVE-2020-27777

Security Advisory Description A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down usually due to Secure Boot guest system running on top of PowerVM or KVM hypervisors pseries platform a root like local user could use this flaw to further...

Design/Logic Flaw

A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down usually due to Secure Boot guest system running on top of PowerVM or KVM hypervisors pseries platform a root like local user could use this flaw to further increase their privileges to...

CVE-2020-27777

A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down usually due to Secure Boot guest system running on top of PowerVM or KVM hypervisors pseries platform a root like local user could use this flaw to further increase their privileges to...

UBUNTU-CVE-2020-27777

A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down usually due to Secure Boot guest system running on top of PowerVM or KVM hypervisors pseries platform a root like local user could use this flaw to further increase their privileges to...

CVE-2020-27777

A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down usually due to Secure Boot guest system running on top of PowerVM or KVM hypervisors pseries platform a root like local user could use this flaw to further increase their privileges to...

CVE-2020-27777

A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down usually due to Secure Boot guest system running on top of PowerVM or KVM hypervisors pseries platform a root like local user could use this flaw to further increase their privileges to...

CVE-2020-27777

The CVE-2020-27777 issue concerns the Linux kernel on PowerPC: RTAS memory accesses in the userspace-to-kernel path allow a local, root-like user on a locked-down guest (Secure Boot) running on PowerVM or KVM/pseries to escalate privileges to the running kernel. Root cause is an improper handling...

CVE-2020-27777

A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down usually due to Secure Boot guest system running on top of PowerVM or KVM hypervisors pseries platform a root like local user could use this flaw to further increase their privileges to...