| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
iommu/amd/pgtbl: Fix possible race while increase page table level
The AMD IOMMU host page table implementation supports dynamic page table levels
(up to 6 levels), starting with a 3-level configuration that expands based on
IOVA address. The kernel maintains a root pointer and current page table level
to enable proper page table walks in alloc_pte()/fetch_pte() operations.
The IOMMU IOVA allocator initially starts with 32-bit address and onces its
exhuasted it switches to 64-bit address (max address is determined based
on IOMMU and device DMA capability). To support larger IOVA, AMD IOMMU
driver increases page table level.
But in unmap path (iommu_v1_unmap_pages()), fetch_pte() reads
pgtable->[root/mode] without lock. So its possible that in exteme corner case,
when increase_address_space() is updating pgtable->[root/mode], fetch_pte()
reads wrong page table level (pgtable->mode). It does compare the value with
level encoded in page table and returns NULL. This will result is
iommu_unmap ops to fail and upper layer may retry/log WARN_ON.
CPU 0 CPU 1
------ ------
map pages unmap pages
alloc_pte() -> increase_address_space() iommu_v1_unmap_pages() -> fetch_pte()
pgtable->root = pte (new root value)
READ pgtable->[mode/root]
Reads new root, old mode
Updates mode (pgtable->mode += 1)
Since Page table level updates are infrequent and already synchronized with a
spinlock, implement seqcount to enable lock-free read operations on the read path. |
| Memory corruption may occur while processing message from frontend during allocation. |
| Memory corruption may occur in keyboard virtual device due to guest VM interaction. |
| VMware ESXi, and Workstation contain a TOCTOU (Time-of-Check Time-of-Use) vulnerability that leads to an out-of-bounds write. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host. |
| A race condition in Ivanti Application Control Engine before version 10.14.4.0 allows a local authenticated attacker to bypass the application blocking functionality. |
| Absolute path traversal in Ivanti EPM before the 2024 January-2025 Security Update and 2022 SU6 January-2025 Security Update allows a remote unauthenticated attacker to leak sensitive information. |
| Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability |
| Microsoft AutoUpdate (MAU) Elevation of Privilege Vulnerability |
| In the Linux kernel, the following vulnerability has been resolved:
accel/ivpu: Fix race condition when unbinding BOs
Fix 'Memory manager not clean during takedown' warning that occurs
when ivpu_gem_bo_free() removes the BO from the BOs list before it
gets unmapped. Then file_priv_unbind() triggers a warning in
drm_mm_takedown() during context teardown.
Protect the unmapping sequence with bo_list_lock to ensure the BO is
always fully unmapped when removed from the list. This ensures the BO
is either fully unmapped at context teardown time or present on the
list and unmapped by file_priv_unbind(). |
| Memory corruption when blob structure is modified by user-space after kernel verification. |
| Memory corruption occurs during the copying of read data from the EEPROM because the IO configuration is exposed as shared memory. |
| Time-of-check time-of-use (toctou) race condition in Windows Fundamentals allows an authorized attacker to execute code over a network. |
| Improper privilege management in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally. |
| Time-of-check time-of-use (toctou) race condition in Windows Virtual Machine Bus allows an unauthorized attacker to execute code locally. |
| Concurrent execution using shared resource with improper synchronization ('race condition') in Universal Print Management Service allows an authorized attacker to elevate privileges locally. |
| Time-of-check time-of-use race condition in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via local access. |
| IBM Storage Virtualize 8.5, 8.6, and 8.7 products could allow a user to escalate their privileges to that of another user logging in at the same time due to a race condition in the login function. |
| Concurrent execution using shared resource with improper synchronization ('race condition') in Capability Access Management Service (camsvc) allows an unauthorized attacker to elevate privileges locally. |
| Memory corruption while processing INIT and multimode invoke IOCTL calls on FastRPC. |
| Null pointer dereference in Windows NTFS allows an authorized attacker to elevate privileges locally. |
