general protection fault in qfq_reset

Kernel	Title	Count	Last	Reported	Patched	Status
linux-4.14	general protection fault in qfq_reset_qdisc (2)	2	1124d	1201d	0/1	auto-closed as invalid on 2021/07/26 19:48
upstream	general protection fault in qfq_reset_qdisc net	5	621d	693d	0/26	auto-obsoleted due to no activity on 2022/11/11 06:00
upstream	KASAN: slab-use-after-free Read in qfq_reset_qdisc net	3	270d	312d	0/26	closed as invalid on 2023/09/21 09:36
upstream	general protection fault in qfq_reset_qdisc (3) net	2	66d	117d	0/26	closed as invalid on 2024/03/12 16:19
upstream	general protection fault in qfq_reset_qdisc (2) net	1	193d	193d	0/26	closed as invalid on 2023/12/05 18:14

device veth0_macvtap left promiscuous mode device veth1_vlan left promiscuous mode device veth0_vlan left promiscuous mode kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 2451 Comm: kworker/u4:4 Not tainted 4.14.170-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net task: ffff8880a1384400 task.stack: ffff8880a1390000 RIP: 0010:qfq_reset_qdisc+0x141/0x2c0 net/sched/sch_qfq.c:1463 RSP: 0018:ffff8880a1397958 EFLAGS: 00010202 RAX: 0000000000000013 RBX: ffff8880a9e1d180 RCX: ffff88805ed9d0c0 RDX: 0000000000000000 RSI: ffff88805ed9d0c0 RDI: 0000000000000098 RBP: ffff8880a13979b0 R08: ffff888081e00590 R09: ffff8880a1384400 R10: dffffc0000000000 R11: ffff8880a1384400 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff8880a9e1d1c8 R15: ffff88805ed9d280 FS: 0000000000000000(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001ace0b8 CR3: 000000009fc52000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: qdisc_destroy+0x10e/0x320 net/sched/sch_generic.c:723 dev_shutdown+0x28e/0x44b net/sched/sch_generic.c:1000 rollback_registered_many+0x6fd/0xb60 net/core/dev.c:7199 unregister_netdevice_many.part.0+0x1b/0x1e0 net/core/dev.c:8278 unregister_netdevice_many net/core/dev.c:8277 [inline] default_device_exit_batch+0x31e/0x3d0 net/core/dev.c:8739 ops_exit_list.isra.0+0xfc/0x150 net/core/net_namespace.c:145 cleanup_net+0x3ba/0x870 net/core/net_namespace.c:484 process_one_work+0x863/0x1600 kernel/workqueue.c:2114 worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248 kthread+0x319/0x430 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: a5 25 fc 4c 8d 73 48 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 0f 85 15 01 00 00 4c 8b 6b 48 49 8d bd 98 00 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e 09 01 00 00 41 8b 85 98 RIP: qfq_reset_qdisc+0x141/0x2c0 net/sched/sch_qfq.c:1463 RSP: ffff8880a1397958 ---[ end trace 29bb8e371dea7bde ]---