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

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CVE-2026-64368

In the Linux kernel, the following vulnerability has been resolved: mm/slab: do not limit zeroing to origsize when only red zoning is enabled When init zeroing on allocation is requested, for kmalloc we generally have to zero the full object size even if a smaller size is requested, in order to...

UBUNTU-CVE-2026-64368

In the Linux kernel, the following vulnerability has been resolved: mm/slab: do not limit zeroing to origsize when only red zoning is enabled When init zeroing on allocation is requested, for kmalloc we generally have to zero the full object size even if a smaller size is requested, in order to...

CVE-2026-64368

The CVE-2026-64368 issue affects the Linux kernel’s slab allocator: when red zoning is enabled, zeroing was overly broad and could affect krealloc()’s __GFP_ZERO contract. The root cause is an imprecise check for the tracked requested size; fixes switch to slub_debug_orig_size() to determine if t...

Linux Distros Unpatched Vulnerability : CVE-2026-64368

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/slab: do not limit zeroing to origsize when only red zoning is enabled When init zeroing on allocation is requested, for kmalloc we generally have to zero th...