In the Linux kernel, the following vulnerability has been resolved:

net/sched: netem: fix queue limit check to include reordered packets

The queue limit check in netem_enqueue() uses q->t_len which only
counts packets in the internal tfifo. Packets placed in sch->q by
the reorder path (__qdisc_enqueue_head) are not counted, allowing
the total queue occupancy to exceed sch->limit under reordering.

Include sch->q.qlen in the limit check.

https://git.kernel.org/stable/c/0f875d52db4c921da610e481b72f03cc82fdcb72

https://git.kernel.org/stable/c/39a66e83ea41fe845631eeb8d326953de27d13f9

https://git.kernel.org/stable/c/4185701fcce6b426b6c3630b25330dddd9c47b0d

https://git.kernel.org/stable/c/54b5dbacd00dedffd5e2eed76de1c3839996b5e6

https://git.kernel.org/stable/c/74fcd8e127200a50ee22ba2b45c164722bdb9177

https://git.kernel.org/stable/c/8450462eaf91d5d2a9e863507b16d18e814baef3

https://git.kernel.org/stable/c/936a7dd87251f6f3e88983350833edf60fe6a80b

https://git.kernel.org/stable/c/ef9a41b3870fb90577da5b2de5bd140022d4021e

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