general protection fault in qfq_reset

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	general protection fault in qfq_reset_qdisc net	5	833d	905d	0/28	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	481d	524d	0/28	closed as invalid on 2023/09/21 09:36
upstream	general protection fault in qfq_reset_qdisc (3) net	2	278d	328d	0/28	closed as invalid on 2024/03/12 16:19
upstream	general protection fault in qfq_reset_qdisc (2) net	1	405d	405d	0/28	closed as invalid on 2023/12/05 18:14
linux-4.14	general protection fault in qfq_reset_qdisc	1	1743d	1743d	0/1	auto-closed as invalid on 2020/06/13 20:08
upstream	KASAN: use-after-free Read in qfq_reset_qdisc net	1	1040d	1040d	0/28	closed as invalid on 2022/02/17 02:00

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: 1 PID: 17342 Comm: kworker/u4:5 Not tainted 4.14.227-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net task: ffff888043ae64c0 task.stack: ffff88804aa48000 RIP: 0010:qfq_reset_qdisc+0x143/0x490 net/sched/sch_qfq.c:1463 RSP: 0018:ffff88804aa4f9b8 EFLAGS: 00010202 RAX: 00000000e0000013 RBX: ffff888099c66d80 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffff88809f429b00 RDI: 0000000700000099 RBP: dffffc0000000000 R08: ffff888043ae64c0 R09: dffffc0000000000 R10: 0000000000000000 R11: ffff888043ae64c0 R12: 0000000700000001 R13: ffff888099c66dc8 R14: ffffed1011eb0da0 R15: ffff88809f429b00 FS: 0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c034479000 CR3: 000000008f5c2000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: qdisc_destroy+0x104/0x310 net/sched/sch_generic.c:724 dev_shutdown+0x27a/0x440 net/sched/sch_generic.c:1001 rollback_registered_many+0x73a/0xba0 net/core/dev.c:7197 unregister_netdevice_many.part.0+0x18/0x2e0 net/core/dev.c:8285 unregister_netdevice_many net/core/dev.c:8284 [inline] default_device_exit_batch+0x2d8/0x380 net/core/dev.c:8746 ops_exit_list+0xf9/0x150 net/core/net_namespace.c:145 cleanup_net+0x3b3/0x840 net/core/net_namespace.c:484 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: a7 7a fb 4c 8d 6b 48 4c 89 e8 48 c1 e8 03 80 3c 28 00 0f 85 41 02 00 00 4c 8b 63 48 49 8d bc 24 98 00 00 00 48 89 f8 48 c1 e8 03 <0f> b6 04 28 84 c0 74 08 3c 03 0f 8e 35 02 00 00 41 8b 84 24 98 RIP: qfq_reset_qdisc+0x143/0x490 net/sched/sch_qfq.c:1463 RSP: ffff88804aa4f9b8 ---[ end trace bfccf403254a246f ]---

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2021/03/28 19:47	linux-4.14.y	670d6552eda8	a8529b82	.config	console log	report			info		ci2-linux-4-14	general protection fault in qfq_reset_qdisc
2021/01/10 14:41	linux-4.14.y	ec822b3e8bf4	2c1f2513	.config	console log	report			info		ci2-linux-4-14

Crashes (2):

Assets (help?)