Loading vulnerability…
CVE-2025-23150 is an off-by-one vulnerability in the Linux kernel ext4 filesystem's do_split function. Incorrect directory-entry split calculations can allow the reverse map index to reach -1, resulting in an out-of-bounds access in ext4_insert_dentry and a subsequent use-after-free during directory-entry insertion. The condition is associated with directory blocks containing many long filename entries and was observed along a symbolic-link creation path.
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.
17 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability addressed by the referenced Alma Linux security update; technical flaw details are not provided.
A Linux kernel ext4 vulnerability caused by an off-by-one error in do_split.
An off-by-one error in the Linux kernel ext4 filesystem do_split function, fixed by the Red Hat kernel-rt update.
An off-by-one error in the Linux kernel ext4 filesystem's do_split function.
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.