CVE-2026-89961

A flaw was found in the Linux kernel's powerpc/mm component. An error in how physical frame number PFN offsets are tracked during compound page population can lead to incorrect memory management decisions. This issue could potentially result in system instability or a denial of service. Mitigatio...

SUSE CVE-2026-89961

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: fix wrong addrpfn tracking in compound vmemmap population vmemmappopulatecompoundpages uses addrpfn to determine the PFN offset within a compound page and to decide whether the current vmemmap slot should be populated...

DEBIAN-CVE-2026-89961

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: fix wrong addrpfn tracking in compound vmemmap population vmemmappopulatecompoundpages uses addrpfn to determine the PFN offset within a compound page and to decide whether the current vmemmap slot should be populated...

CVE-2026-89961

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: fix wrong addrpfn tracking in compound vmemmap population vmemmappopulatecompoundpages uses addrpfn to determine the PFN offset within a compound page and to decide whether the current vmemmap slot should be populated...

EUVD-2026-80561

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: fix wrong addrpfn tracking in compound vmemmap population vmemmappopulatecompoundpages uses addrpfn to determine the PFN offset within a compound page and to decide whether the current vmemmap slot should be populated...

CVE-2026-89961 powerpc/mm: fix wrong addr_pfn tracking in compound vmemmap population

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: fix wrong addrpfn tracking in compound vmemmap population vmemmappopulatecompoundpages uses addrpfn to determine the PFN offset within a compound page and to decide whether the current vmemmap slot should be populated...

CVE-2026-89961 powerpc/mm: fix wrong addr_pfn tracking in compound vmemmap population

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: fix wrong addrpfn tracking in compound vmemmap population vmemmappopulatecompoundpages uses addrpfn to determine the PFN offset within a compound page and to decide whether the current vmemmap slot should be populated...

CVE-2026-89961

CVE-2026-89961 affects the Linux kernel 's powerpc/mm subsystem, specifically the vmemmap_populate_compound_pages() function. The root cause is a mismatch in how addr_pfn is advanced relative to the loop's addr variable in vmemmap address space. Because each PAGE_SIZE step in addr spans PAGE_SIZE...

CVE-2026-89961: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: fix wrong addrpfn tracking in compound vmemmap population vmemmappopulatecompoundpages uses addrpfn to determine the PFN offset within a compound page and to decide whether the current vmemmap slot should be populated...

CVE-2024-56678: Use After Free

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm/fault: Fix kfence page fault reporting copyfromkernelnofault can be called when doing read of /proc/kcore. /proc/kcore can have some unmapped kfence objects which when read via copyfromkernelnofault can cause page...

Linux Kernel Security Vulnerabilities

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 Linux kernel, which originates from an error in the kfence page in the powerpc/mm/fault module...

PT-2024-36986

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue concerns the Linux kernel, specifically the powerpc/mm/fault component, where a problem with kfence page fault reporting has been resolved. The copy from kernel nofault functio...

RHEL 9 : kernel-rt (Unpatched Vulnerability)

The remote Redhat Enterprise Linux 9 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched. - kernel: powerpc/mm: Fix null-pointer dereference in pgtablecacheadd CVE-2023-52607 - In the Linux kernel,...

CVE-2023-52607

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: Fix null-pointer dereference in pgtablecacheadd kasprintf returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity...

CVE-2023-52607 powerpc/mm: Fix null-pointer dereference in pgtable_cache_add

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: Fix null-pointer dereference in pgtablecacheadd kasprintf returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity...

CVE-2023-52607

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: Fix null-pointer dereference in pgtablecacheadd kasprintf returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity...

CVE-2023-52607: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: Fix null-pointer dereference in pgtablecacheadd kasprintf returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity...

PT-2023-9662

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to a null-pointer dereference in the pgtable cache add function of the powerpc/mm component of the Linux kernel. The kasprintf function returns a pointer to...

CVE-2019-12817

arch/powerpc/mm/mmucontextbook3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes may be able to read/write to one another's virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected...

CVE-2019-12817: Out-of-bounds Write

arch/powerpc/mm/mmucontextbook3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes may be able to read/write to one another's virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected...