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CVE-2025-38498 is an incorrect authorization vulnerability in the Linux kernel mount-namespace implementation. The do_change_type() path permitted mount-propagation settings to be changed for unmounted mounts or mounts outside the caller's mount namespace. This did not enforce the namespace ownership restrictions applied to other mount(2) operations. The correction causes do_change_type() to reject unmounted and foreign mounts, limiting propagation-setting changes to mounts in the caller's mount namespace.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
36 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel vulnerability in do_change_type() involving operation on unmounted or unauthorized mounts.
Linux kernel mount-handling flaw in do_change_type() involving operations on unmounted or non-owned mounts.
Linux kernel mount type-change validation flaw.
Linux kernel mount handling flaw in do_change_type() involving unmounted or foreign mounts.
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.