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CVE-2025-38461 is a time-of-check/time-of-use race in the Linux kernel vsock subsystem. Transport assignment can race with unloading of a vsock transport module, allowing the new_transport reference to become stale. Subsequent use during vsock connection handling, including the vsock_assign_transport path, can dereference the stale pointer and cause a KASAN-detected kernel page fault. The fix synchronizes transport assignment against module unloading, protects the new_transport reference, corrects an unsafe call in vsock_use_local_transport(), and adds a lockdep assertion.
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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.
18 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Time-of-check/time-of-use flaw in Linux kernel vsock transport handling.
A time-of-check-to-time-of-use (TOCTOU) vulnerability in Linux kernel vsock transport handling.
A Linux kernel vsock time-of-check-to-time-of-use vulnerability affecting transport operations.
A Linux kernel vsock time-of-check to time-of-use (TOCTOU) vulnerability in transport_* handling.
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.