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-2026-93172: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mm/mminit: handle allocpercpu failure in freeareainitcorehotplug We miss a failed allocation check for pgdat-percpunodestats, which results in a NULL deref when we offset into the per-cpu area. Propagate -ENOMEM up the stack and...

CVE-2026-72172

In the Linux kernel, the following vulnerability has been resolved: mm/mminit: fix uninitialized struct pages for ZONEDEVICE If DAX memory is hotplugged into an unoccupied subsection of an early section, sectionactivate reuses the unoptimized boot memmap. However, compoundnrpages still assumes th...

CVE-2026-72172: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mm/mminit: fix uninitialized struct pages for ZONEDEVICE If DAX memory is hotplugged into an unoccupied subsection of an early section, sectionactivate reuses the unoptimized boot memmap. However, compoundnrpages still assumes th...