CVE-2026-93284

A flaw was found in the Linux kernel's DRM Direct Rendering Manager pagemap subsystem. During page migration error handling, the kernel clears the page tracking array before finishing Direct Memory Access DMA unmapping operations. A local user could exploit this flaw by triggering migration...

CVE-2026-89811: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Add TLB flush after MES queue eviction/suspension MES Micro Engine Scheduler does not perform heavy-weight TLB invalidation after unmapping queues, unlike HWS which does this automatically. This causes a race conditio...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: zsmalloc: Fixed races between asynchronous zspage free operations and page migration. The asynchronous zspage free worker attempts to lock the entire page list of a zspage, without protecting against page migration. Since page...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ubifs: A fix was made to increment the reference count of a page once it is set as private. The MM structure defines a rule 1 very clearly: once a page is marked with the PGprivate flag, the reference count of that page should be...

CVE-2026-89756 mm/migrate: report RCU-tasks quiescent states in migrate_pages_batch()

In the Linux kernel, the following vulnerability has been resolved: mm/migrate: report RCU-tasks quiescent states in migratepagesbatch migratepagesbatch unmaps each folio before moving it, and every unmap runs the mmunotifier invalidate callbacks. On KVM hosts trytomigrate ends up in...

CVE-2026-89756 mm/migrate: report RCU-tasks quiescent states in migrate_pages_batch()

In the Linux kernel, the following vulnerability has been resolved: mm/migrate: report RCU-tasks quiescent states in migratepagesbatch migratepagesbatch unmaps each folio before moving it, and every unmap runs the mmunotifier invalidate callbacks. On KVM hosts trytomigrate ends up in...

CVE-2026-80686 mm: migrate_device: fix pte_pfn/pte_dirty called on non-present PTE

In the Linux kernel, the following vulnerability has been resolved: mm: migratedevice: fix ptepfn/ptedirty called on non-present PTE ptepfn and ptedirty have undefined behaviour when called on a non-present PTE. In migratevmacollectpmd, these functions may be invoked on non-present entries e.g.,...

CVE-2026-64129

CVE-2026-64129 affects the Linux kernel where, in migrate_vma_insert_huge_pmd_page within the memory management code, a spinlock leak could occur if check_stable_address_space() fails after pmd_lock() acquires the PMD spinlock. The path could jump to abort, bypassing the unlock, causing the PMD s...

CVE-2026-53108

A flaw was found in the Linux kernel. A race condition exists between the movepages system call, which sets up a Page Middle Directory PMD migration entry, and the munmap system call, which unmaps memory regions. This race can be exploited by a local user to trigger a kernel bug, causing a system...

Linux Distros Unpatched Vulnerability : CVE-2026-53108

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - powerpc/64s: Fix unmap race with PMD migration entries The following race is possible with migration swap entries or device-private THP entries. e.g. when...

CVE-2026-53108

CVE-2026-53108 concerns a race in PowerPC64 (book3s64) PMD migration handling during unmap vs move_pages. The vulnerability arises when a PMD migration entry is created by migrate_pages while an munmap occurs, hitting a VM_BUG_ON in pmdp_huge_get_and_clear_full. The Linux kernel patch (commit a30...

SUSE CVE-2026-45942

In the Linux kernel, the following vulnerability has been resolved: ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures like: ext4mbcomplexscangroup:2508: group...

CVE-2026-45942

A flaw was found in the Linux kernel's ext4 filesystem. A race condition exists between page migration and bitmap modification within the loadbuddy function. This can lead to bitmap inconsistencies and false positive corruption reports during certain workloads. This issue can affect data integrit...

EUVD-2026-32226

In the Linux kernel, the following vulnerability has been resolved: ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures like: ext4mbcomplexscangroup:2508: group...

CVE-2026-45942

In the Linux kernel, the following vulnerability has been resolved: ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures like: ext4mbcomplexscangroup:2508: group...

UBUNTU-CVE-2026-45942

In the Linux kernel, the following vulnerability has been resolved: ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures like: ext4mbcomplexscangroup:2508: group...

CVE-2026-45942 ext4: fix e4b bitmap inconsistency reports

In the Linux kernel, the following vulnerability has been resolved: ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures like: ext4mbcomplexscangroup:2508: group...

CVE-2026-45942

In the Linux kernel, the following vulnerability has been resolved: ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures like: ext4mbcomplexscangroup:2508: group...

CVE-2026-45942

Summary of CVE-2026-45942 : A race condition in the Linux kernel ext4 bitmap handling enables inconsistent bitmap reporting due to concurrent page migration and bitmap modification in the load_buddy path. The root cause is that the fast load_buddy path only increments the folio refcount and can o...

CVE-2026-45942 ext4: fix e4b bitmap inconsistency reports

In the Linux kernel, the following vulnerability has been resolved: ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures like: ext4mbcomplexscangroup:2508: group...