Loading vulnerability…
A vulnerability in the Linux kernel memory-management subsystem allowed Transparent Huge Pages (THP) collapse logic to be applied to files backed by anonymous inodes. The flaw was in file_thp_enabled(), which incorrectly treated anonymous inode pseudo-files such as guest_memfd and secretmem as eligible read-only regular files when CONFIG_READ_ONLY_THP_FOR_FS was enabled. This happened because such files are created through alloc_file_pseudo(), which leaves inode->i_writecount at 0, while S_ISREG(inode->i_mode) remains true. As a result, khugepaged or MADV_COLLAPSE could drive THP collapse on objects that were never intended to participate in this path. For guest_memfd, the collapse path could create large folios in the page cache even though the guest_memfd fault handler does not support large folios, triggering a kernel warning in kvm_gmem_fault_user_mapping(). For secretmem, collapse_file() could attempt to copy page contents through the direct map even though secretmem pages are removed from the direct map, leading to page faults and possible kernel crashes. The fix denies THP eligibility for anonymous inode files by checking IS_ANON_FILE(inode) in file_thp_enabled().
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel memory-management vulnerability involving transparent huge pages for files on anonymous inodes.
A Linux kernel vulnerability in transparent huge page handling where file_thp_enabled() incorrectly allowed THP for files on anonymous inodes such as guest_memfd and secretmem, potentially causing WARN conditions, false memory failure reports, and kernel crashes.
A Linux kernel memory-management vulnerability related to transparent huge pages for files on anonymous inodes.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.