divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 24408 Comm: syz-executor.1 Not tainted 5.17.0-rc8-syzkaller-00066-ged0c99dc0f49 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:netem_enqueue+0x1474/0x3550 net/sched/sch_netem.c:516 Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 c2 03 63 fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 03 RSP: 0018:ffffc900027df528 EFLAGS: 00010246 RAX: 000000004af8656a RBX: ffff888075fffca8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88801d0f68c0 RDI: ffff88801d0f6934 RBP: ffff88804e1a4330 R08: ffff88801d0f6990 R09: 0000000000000000 R10: ffffffff83dc3acd R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000001 R14: ffff88804e1a4000 R15: 0000000000000000 FS: 00007ffb761d6700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000100 CR3: 000000007900c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netem_enqueue+0x2048/0x3550 net/sched/sch_netem.c:483 dev_qdisc_enqueue+0x40/0x300 net/core/dev.c:3668 __dev_xmit_skb net/core/dev.c:3756 [inline] __dev_queue_xmit+0x1f61/0x37b0 net/core/dev.c:4081 packet_snd net/packet/af_packet.c:3060 [inline] packet_sendmsg+0x2226/0x5270 net/packet/af_packet.c:3087 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:725 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2413 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2496 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ffb77861049 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffb761d6168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ffb77973f60 RCX: 00007ffb77861049 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 RBP: 00007ffb778bb08d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd16b9adaf R14: 00007ffb761d6300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:netem_enqueue+0x1474/0x3550 net/sched/sch_netem.c:516 Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 c2 03 63 fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 03 RSP: 0018:ffffc900027df528 EFLAGS: 00010246 RAX: 000000004af8656a RBX: ffff888075fffca8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88801d0f68c0 RDI: ffff88801d0f6934 RBP: ffff88804e1a4330 R08: ffff88801d0f6990 R09: 0000000000000000 R10: ffffffff83dc3acd R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000001 R14: ffff88804e1a4000 R15: 0000000000000000 FS: 00007ffb761d6700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000100 CR3: 000000007900c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 74 1f je 0x21 2: 4c 89 44 24 20 mov %r8,0x20(%rsp) 7: 89 4c 24 18 mov %ecx,0x18(%rsp) b: 89 44 24 10 mov %eax,0x10(%rsp) f: e8 c2 03 63 fa callq 0xfa6303d6 14: 4c 8b 44 24 20 mov 0x20(%rsp),%r8 19: 8b 4c 24 18 mov 0x18(%rsp),%ecx 1d: 8b 44 24 10 mov 0x10(%rsp),%eax 21: 48 8b 34 24 mov (%rsp),%rsi 25: 31 d2 xor %edx,%edx 27: 2b 4e 74 sub 0x74(%rsi),%ecx * 2a: f7 f1 div %ecx <-- trapping instruction 2c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 33: fc ff df 36: 48 01 d3 add %rdx,%rbx 39: 48 89 d9 mov %rbx,%rcx 3c: 48 c1 e9 03 shr $0x3,%rcx