Loading vulnerability…
CVE-2026-43158 is a flaw in Linux kernel XFS extended-attribute leaf-block handling. During xfs_attr3_leaf_add_work, growth of the leaf entry array does not correctly adjust all free-space map entries. Because the freemap need not track every free region, stale entries can advertise space already occupied by the growing entry array. Subsequent attribute insertion can place the attribute name area below the end of that array, triggering an assertion and shutting down the filesystem. Crafted extended-attribute insertion patterns can allow a local user to cause denial of service.
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.
28 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel XFS vulnerability involving incorrect free-space map adjustments when adding extended attributes to leaf blocks. The advisory identifies affected Rocky Linux 10.2 kernel packages and recommends security updates.
A Linux kernel XFS flaw causes incorrect free-space map adjustments when extended attributes are added to leaf blocks. Free-space entries can overlap the growing attribute-entry array, triggering an assertion and filesystem shutdown. The fix adjusts all free-space map entries to prevent these collisions. The plugin reports a CVSS v3 base score of 8.8, while the vendor rates severity as LOW.
A vulnerability addressed by the referenced CentOS 7 security advisory; no technical flaw details are provided.
A vulnerability addressed in Huawei EulerOS UVP 2.10.1 kernel-related packages.
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.