Description: net: sched: sch_qfq: Fix UAF in qfq_dequeue()
References:
 https://kernel.dance/#8fc134fee27f2263988ae38920bc03da416b03d8
Notes:
 carnil> Commit fixes 462dbc9101ac ("pkt_sched: QFQ Plus: fair-queueing
 carnil> service at DRR cost") in 3.8-rc1.
 carnil> For 6.5.y fixed as well in 6.5.4.
Bugs:
upstream: released (6.6-rc1) [8fc134fee27f2263988ae38920bc03da416b03d8]
6.1-upstream-stable: released (6.1.54) [a18349dc8d916a64d7c93f05da98953e3386d8e9]
5.10-upstream-stable: released (5.10.195) [746a8df5e4d235059b1adf02e8456e7ec132d2d8]
4.19-upstream-stable: released (4.19.295) [7ea1faa59c75336d86893378838ed1e6f20c0520]
sid: released (6.5.6-1)
6.1-bookworm-security: released (6.1.55-1)
5.10-bullseye-security: released (5.10.197-1)
4.19-buster-security: released (4.19.304-1)