CVE-2026-93243

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: properly account locked pages secretmem accounts folios by treating memory as if it were mlock'd and thus limited by the RLIMITMEMLOCK limit. However the folios are unevictable and remain so until the inode is...

CVE-2026-93239

In the Linux kernel, the following vulnerability has been resolved: arm64: mm: Fix the lockless page-table walk in showpte showpte walks page tables locklessly and can run with interrupts enabled. A concurrent teardown can free a table page while it is being walked. It can also clear a parent ent...

CVE-2026-93232

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix boot panic with CONFIGDEBUGVM and HVO bootmem pages Patch series "mm: Refactor bootmem gigantic hugepage allocation", v4. This series is split out from the earlier larger series "mm: Generalize HVO for HugeTLB and...

EUVD-2026-86237

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix boot panic with CONFIGDEBUGVM and HVO bootmem pages Patch series "mm: Refactor bootmem gigantic hugepage allocation", v4. This series is split out from the earlier larger series "mm: Generalize HVO for HugeTLB and...

CVE-2026-93232

The Linux kernel contains a vulnerability where certain configurations cause a boot panic . The issue stems from incorrect initialization ordering in mm/hugetlb ; specifically, shared tail pages for HVO (Huge Page Overlays) were initialized too late in hugetlb_vmemmap_init() while bootmem HugeTLB...

CVE-2026-93230

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: initialize gigantic bootmem hugepage struct pages earlier Gigantic bootmem HugeTLB pages are currently initialized from hugetlbinit, but pageallocinitlate runs earlier and walks pageblocks to determine zone contiguity...

CVE-2026-93230

The Linux kernel contains a vulnerability in mm/hugetlb where gigantic bootmem HugeTLB pages are initialized too late during the boot process. Specifically, these pages are initialized via hugetlb_init(), but page_alloc_init_late() runs earlier and walks pageblocks to determine zone contiguity. I...

CVE-2026-93227

The Linux kernel contains a vulnerability in deferred_grow_zone() when CONFIG_DEFERRED_STRUCT_PAGE_INIT is enabled. With a large CMA reservation , the function may initialize the memory map of an entire zone; however, if the node's RAM end is not aligned on PAGES_PER_SECTION boundaries, the updat...

CVE-2026-93227

In the Linux kernel, the following vulnerability has been resolved: mm/mminit: deferredgrowzone: fix out-of-range firstdeferredpfn With CONFIGDEFERREDSTRUCTPAGEINIT enabled, deferredgrowzone initializes struct pages early in boot to satisfy an allocation. With a large CMA reservation in place, th...

CVE-2026-93218

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: skip device-private PMDs in madvisefreehugepmd madvisefreepterange checks pmdtranshugepmd unlocked, then madvisefreehugepmd takes pmdtranshugelock. pmdishuge returns true for a device-private PMD, so origpmd can be...

CVE-2026-93217

The Linux kernel contains a vulnerability in mm/madvise where madvise_cold_or_pageout_pte_range() can trigger a kernel panic. The issue occurs because pmd_is_huge() returns true for device-private PMDs, causing a VM_BUG_ON() assertion to trip when the PMD is not present. This is potentially trigg...

EUVD-2026-85946

In the Linux kernel, the following vulnerability has been resolved: mm/madvise: skip device-private PMDs in cold and pageout walks madvisecoldorpageoutpterange takes pmdtranshugelock, whose pmdishuge check returns true for a device-private PMD. The subsequent !pmdpresent branch has a VMBUGON...

CVE-2026-93217

In the Linux kernel, the following vulnerability has been resolved: mm/madvise: skip device-private PMDs in cold and pageout walks madvisecoldorpageoutpterange takes pmdtranshugelock, whose pmdishuge check returns true for a device-private PMD. The subsequent !pmdpresent branch has a VMBUGON...

CVE-2026-93216

In the Linux kernel, the following vulnerability has been resolved: mm/pageowner: use memcgdata snapshot to avoid TOCTOU in printpageownermemcg printpageownermemcg reads page-memcgdata via READONCE at the start to guard against tail pages and NULL data. However, it later re-reads page-memcgdata...

RLSA-2026:70498 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: crypto: afalg - Disallow concurrent writes in afalgsendmsg CVE-2025-39964 kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry CVE-2026-45894 kernel: crypto: ccp - Fix a...

Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

kernel: mm/hugetlb: fix list corruption in allocate_file_region_entries()

A flaw was found in the Linux kernel. The allocatefileregionentries function, responsible for managing huge page memory regions, can suffer from list corruption. This occurs because the listsplice operation does not properly re-initialize a list head, allowing concurrent access to shared memory...

kernel: mm/hugetlb: fix list corruption in allocate_file_region_entries()

A flaw was found in the Linux kernel. The allocatefileregionentries function, responsible for managing huge page memory regions, can suffer from list corruption. This occurs because the listsplice operation does not properly re-initialize a list head, allowing concurrent access to shared memory...

kernel: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled

A flaw was found in the Linux kernel's memory management subsystem. This issue occurs when the kernel's memory allocator attempts to zero out newly allocated memory, but an incorrect check prevents the full memory region from being cleared under specific configurations. This can lead to memory no...

Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...