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...

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...

UBUNTU-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...

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...

CVE-2023-54315 powerpc/powernv/sriov: perform null check on iov before dereferencing iov

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...

CVE-2023-54315

CVE-2023-54315 affects the Linux kernel on the PowerPC platform, where a null pointer dereference could occur in the PCI SR-IOV path. The root cause was dereferencing iov before validating it, i.e., accessing iov->num_vfs without ensuring iov is non-NULL. The fixed patch moves the null check b...

CVE-2023-54315 powerpc/powernv/sriov: perform null check on iov before dereferencing iov

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...

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...

CVE-2023-54267

Technical details for CVE-2023-54267 are not publicly available in the provided documents. The initial entry mentions a Linux kernel fix in powerpc/pseries and lppaca_shared_proc() but does not specify affected products/versions or remediation specifics beyond generic description; monitor for upd...

CVE-2023-54267 powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT

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...

CVE-2023-54267 powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT

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...

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...

CVE-2022-50870 powerpc/rtas: avoid device tree lookups in rtas_os_term()

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...

CVE-2022-50870

CVE-2022-50870: In the Linux kernel (powerpc RTAS), rtas_os_term() could hang during panic due to risky device-tree traversal when devtree_lock is held. The fix caches relevant RTAS/DT characteristics at boot and changes the ibm,extended-os-term lookup to a boolean property via of_property_read_b...

CVE-2022-50870 powerpc/rtas: avoid device tree lookups in rtas_os_term()

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...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992509)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992509 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/xive: Fix refcount leak in xivegetmaxprio offindnodebypath returns a node pointer with...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992579)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992579 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...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992496)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992496 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/cell/axonmsi: Fix refcount leak in setupmsimsgaddress ofgetnextparent returns a node...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992472)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992472 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...

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 improper access to lppacasharedproc in powerpc/pseries, which could lead to debugging preemption errors...