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CVE-2025-40214 is an uninitialized-variable vulnerability in the Linux kernel's AF_UNIX socket garbage collector. unix_add_edge() allocates socket graph vertices without initializing scc_index, allowing stale heap contents to affect strongly connected component classification. Following a specific sequence of socket passing, acceptance, closure, and garbage collection, unix_walk_scc_fast() can use an incorrect SCC index, causing unix_vertex_dead() to classify a live in-flight socket as dead and incorrectly garbage-collect its receive queue.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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A Linux kernel AF_UNIX garbage-collection flaw caused by an uninitialized scc_index in unix_add_edge(). Stale heap values can cause incorrect strongly connected component classification, leading the garbage collector to incorrectly treat a live socket as dead and collect its receive queue. The plugin reports a high-severity CVSS v3 score of 7.8 with a local attack vector and low privileges required. A reproducer is described, but the plugin explicitly states that no known exploits are available.
A Linux kernel AF_UNIX socket garbage-collection flaw caused by an uninitialized scc_index field in unix_add_edge(). Under a specific socket-reference and garbage-collection sequence, it can lead to an alive in-flight socket's receive queue being incorrectly garbage-collected.
A specific vulnerability identified as CVE-2025-40214 is referenced in the context of kernelCTF and a mitigation-related item, but no technical details are provided in the content.
A specific vulnerability identified as CVE-2025-40214 referenced in kernelCTF repository content with exploit-related files.
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