CVE-2025-71078

CVE-2025-71078 describes a Linux kernel fix for a SLB multihit issue on hash MMU POWERPC 64s. The root cause is a mismatch between the hardware SLB and the software preload cache when the kernel optimizes switch_mm_irqs_off by not calling switch_mmu_context() if prev and next mm_struct are the sa...

CVE-2025-71078 powerpc/64s/slb: Fix SLB multihit issue during SLB preload

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s/slb: Fix SLB multihit issue during SLB preload On systems using the hash MMU, there is a software SLB preload cache that mirrors the entries loaded into the hardware SLB buffer. This preload cache is subject to period...

CVE-2025-71078 powerpc/64s/slb: Fix SLB multihit issue during SLB preload

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s/slb: Fix SLB multihit issue during SLB preload On systems using the hash MMU, there is a software SLB preload cache that mirrors the entries loaded into the hardware SLB buffer. This preload cache is subject to period...

USN-7940-2 linux-azure-nvidia vulnerabilities

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this t...

USN-7940-2: Linux kernel (Azure, N-Series) vulnerabilities

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this t...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000394)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000394 advisory. The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs, aka CID-39e72bf96f58...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000391)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000391 advisory. 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...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000460)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000460 advisory. An issue was discovered in dlparparseccproperty in arch/powerpc/platforms/pseries/dlpar.c in the Linux kernel through 5.1.6. There is an unchecked kstrdup of...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000406)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000406 advisory. An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. arch/powerpc/kernel/idlebook3s.S does not have save/restore functionality for...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000469)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000469 advisory. In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via a Facility Unavailable exception. To...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000277)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000277 advisory. In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via an interrupt. To exploit the...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000274)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000274 advisory. In the Linux kernel through 5.2.1 on the powerpc platform, when hardware transactional memory is disabled, a local user can cause a denial of service TM Bad Thing...

CVE-2022-50870

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: avoid device tree lookups in rtasosterm rtasosterm is called during panic. Its behavior depends on a couple of conditions in the /rtas node of the device tree, the traversal of which entails locking and local IRQ...

SUSE CVE-2022-50870

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: avoid device tree lookups in rtasosterm rtasosterm is called during panic. Its behavior depends on a couple of conditions in the /rtas node of the device tree, the traversal of which entails locking and local IRQ...

SUSE CVE-2023-54267

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Rework lppacasharedproc to avoid DEBUGPREEMPT lppacasharedproc takes a pointer to the lppaca which is typically accessed through getlppaca. With DEBUGPREEMPT enabled, this leads to checking if preemption is...

SUSE CVE-2023-54315

In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv/sriov: perform null check on iov before dereferencing iov Currently pointer iov is being dereferenced before the null check of iov which can lead to null pointer dereference errors. Fix this by moving the iov null...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993126)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993126 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/pci: Fix getphbnumber locking The recent change to getphbnumber causes a DEBUGATOMICSLEEP...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993289)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993289 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/perf: Optimize clearing the pending PMI and remove WARNON for PMI check in powerpmudisab...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993296)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993296 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/spufs: Fix refcount leak in spufsinitisolatedloader offindnodebypath returns remote devic...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-992901)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992901 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc: Don't try to copy PPR for task with NULL ptregs powerpc sets up PFKTHREAD and PFIOWORKER...