device hsr_slave_0 left promiscuous mode device hsr_slave_1 left promiscuous mode ------------[ cut here ]------------ kernel BUG at net/8021q/vlan.c:97! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 303 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:unregister_vlan_dev+0x4ba/0x4c0 net/8021q/vlan.c:97 Code: 89 df e8 79 c8 bf f8 e9 c8 fe ff ff e8 8f 45 79 f8 48 c7 c7 e0 e9 ed 8d 4c 89 f6 e8 80 55 11 fb e9 b5 fd ff ff e8 76 45 79 f8 <0f> 0b 0f 1f 40 00 55 41 57 41 56 41 55 41 54 53 50 48 89 0c 24 41 RSP: 0018:ffffc9000178f9f8 EFLAGS: 00010293 RAX: ffffffff8905444a RBX: ffff888064cca328 RCX: ffff888012e93880 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888028beecaa R08: ffffffff87d69312 R09: fffffbfff1ba1a21 R10: fffffbfff1ba1a21 R11: 0000000000000000 R12: ffff888064cca000 R13: ffff888028bee000 R14: dffffc0000000000 R15: ffffc9000178faf0 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562b48919188 CR3: 0000000019bfc000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: default_device_exit_batch+0x377/0x4c0 net/core/dev.c:11451 ops_exit_list net/core/net_namespace.c:178 [inline] cleanup_net+0x7ec/0xc60 net/core/net_namespace.c:595 process_one_work+0x833/0x10c0 kernel/workqueue.c:2275 worker_thread+0xac1/0x1300 kernel/workqueue.c:2421 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Modules linked in: ---[ end trace 1ce68e4e744e1d3d ]--- RIP: 0010:unregister_vlan_dev+0x4ba/0x4c0 net/8021q/vlan.c:97 Code: 89 df e8 79 c8 bf f8 e9 c8 fe ff ff e8 8f 45 79 f8 48 c7 c7 e0 e9 ed 8d 4c 89 f6 e8 80 55 11 fb e9 b5 fd ff ff e8 76 45 79 f8 <0f> 0b 0f 1f 40 00 55 41 57 41 56 41 55 41 54 53 50 48 89 0c 24 41 RSP: 0018:ffffc9000178f9f8 EFLAGS: 00010293 RAX: ffffffff8905444a RBX: ffff888064cca328 RCX: ffff888012e93880 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888028beecaa R08: ffffffff87d69312 R09: fffffbfff1ba1a21 R10: fffffbfff1ba1a21 R11: 0000000000000000 R12: ffff888064cca000 R13: ffff888028bee000 R14: dffffc0000000000 R15: ffffc9000178faf0 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562b48919188 CR3: 0000000019bfc000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400