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CVE-2024-26923 is a race condition in the Linux kernel AF_UNIX SOCK_STREAM garbage collector during concurrent connect() processing. When an embryo socket is enqueued while garbage collection scans a candidate listening socket, and its peer carries file descriptors through SCM_RIGHTS, consecutive scan_children() passes can observe different child sets. This can incorrectly increment an object's inflight reference count and leave a dangling pointer on gc_inflight_list, resulting in a use-after-free condition. The upstream fix synchronizes garbage collection with connect() by acquiring and releasing the state lock of each garbage-collection-candidate listening socket before scanning its children.
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Race condition between Unix-domain socket garbage collection and connect operations.
Race condition between garbage collection and connect operations in Linux kernel AF_UNIX sockets.
Linux kernel AF_UNIX garbage-collector race-condition flaw.
Race condition between AF_UNIX garbage collection and connection operations.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.