Loading vulnerability…
CVE-2025-38684 is a NULL-pointer dereference vulnerability in the Linux kernel Enhanced Transmission Selection (ETS) traffic-control scheduler. During ETS qdisc reconfiguration, the change handler updated the configured DWRR-band count before purging unused DWRR classes. Cleanup routines require the prior band and strict-band configuration to locate and classify those classes; using the new configuration creates inconsistent state and can cause a NULL-pointer dereference during queue-length notification processing. The upstream fix purges idle DWRR queues before committing the new band-count configuration.
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.
13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel vulnerability in the sch_ets scheduler where ets_qdisc_change() used the new nbands value while purging unused classes, leading to inconsistent state and a kernel NULL pointer dereference/crash.
A vulnerability referenced by the Red Hat advisory; no technical details are provided in the content.
A vulnerability referenced by the Red Hat kernel security advisory; its technical nature is not specified in the provided content.
Unknown; the advisory lists this CVE without describing the affected component or vulnerability impact.
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.