CVE-2025-68211

CVE-2025-68211 (Linux kernel, KSM) is addressed by a patch that changes scan_get_next_rmap_item from per-address walking to a range walk using walk_page_range, allowing KSMD to skip unmapped holes in large VMAs. The fix targets inefficiency where KSMD would otherwise scan vast address spaces with...

CVE-2025-68211 ksm: use range-walk function to jump over holes in scan_get_next_rmap_item

In the Linux kernel, the following vulnerability has been resolved: ksm: use range-walk function to jump over holes in scangetnextrmapitem Currently, scangetnextrmapitem walks every page address in a VMA to locate mergeable pages. This becomes highly inefficient when scanning large virtual memory...

Linux Distros Unpatched Vulnerability : CVE-2025-68211

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksm: use range-walk function to jump over holes in scangetnextrmapitem Currently, scangetnextrmapitem walks every page address in a VMA to locate mergeable...

UBUNTU-CVE-2024-0564

A flaw was found in the Linux kernel's memory deduplication mechanism. The max page sharing of Kernel Samepage Merging KSM, added in Linux kernel version 4.4.0-96.119, can create a side channel. When the attacker and the victim share the same host and the default setting of KSM is "max page...