CVE-2025-38568 is an out-of-bounds stack write vulnerability in the Linux kernel mqprio traffic-control entry parser. Validation of TCA_MQPRIO_TC_ENTRY_INDEX uses NLA_POLICY_MAX(NLA_U32, TC_QOPT_MAX_QUEUE), incorrectly accepting index 16. The fp[] stack array contains only 16 elements, with valid indices from 0 through 15, so processing the accepted index causes a four-byte write beyond the array boundary. The correction restricts the maximum accepted index to TC_QOPT_MAX_QUEUE - 1.
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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 stack out-of-bounds write in Linux kernel mqprio traffic-control entry parsing. Affected Rocky Linux 10.1 kernel packages have security updates under CIQ advisory crlsa-2026_1690.
A vulnerability affecting Google COS kernel packages, identified by Tenable Cloud Security plugin 472433. The reference assigns a CVSS v3 base score of 7.1, indicating potential high integrity and availability impacts with local access and low privileges. It does not describe the underlying flaw.
A Linux kernel net/sched mqprio stack out-of-bounds write vulnerability during tc entry parsing.
A Linux kernel net/sched mqprio vulnerability involving a stack out-of-bounds write during tc entry parsing.
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.