CVE-2025-37798 codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()

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Multiple CVEs Addressed in Networking Code Fixes Two vulnerabilities in networking code have been published, affecting the Linux kernel. CVE-2025-39677, published on September 5, 2025, addresses backlog accounting issues, while CVE-2025-37798, published on May 2, 2025, removes a specific check in the codel queue discipline. These vulnerabilities may impact systems utilizing these networking components. 2 sources 41