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CVE-2024-50154 is a use-after-free vulnerability in Linux kernel TCP/DCCP request-socket timer handling. A race introduced by using timer_pending() in reqsk_queue_unlink() can cause del_timer_sync() to be skipped after the timer has been detached but while its handler remains active. The request-socket timer can subsequently be rescheduled. If the associated socket is accepted and then closed before a later timer execution, a BPF tracing program attached to TCP SYN+ACK retransmission processing can dereference the stale req->sk pointer through bpf_sk_storage_get_tracing.
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A high-severity Linux kernel TCP/DCCP use-after-free caused by a race in request-socket timer handling. Under a narrow timing condition, the timer may be rescheduled after its socket is closed, allowing BPF tracing code to dereference freed socket memory. Google COS installations using sys-kernel/lakitu-kernel-6_1 before version 18244.236.64 are affected.
A locally exploitable vulnerability affecting Unity Linux packages, with high confidentiality, integrity, and availability impact in the supplied CVSS vectors. Exploitation requires local access, low privileges, and high attack complexity.
Linux kernel vulnerability referenced by the advisory; details are not provided in the content.
Unknown
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.