divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 10976 Comm: syz-executor.0 Not tainted 5.10.117-syzkaller-00813-g0974b8411a58 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:netem_enqueue+0x29e6/0x3900 net/sched/sch_netem.c:516 Code: 45 8b 75 70 4c 89 6c 24 28 49 83 c5 74 4c 89 e9 48 c1 e9 03 8a 14 31 84 d2 48 8b 5c 24 10 0f 85 32 08 00 00 45 2b 75 00 31 d2 <41> f7 f6 49 01 d4 4c 89 e0 48 c1 e8 03 8a 04 30 84 c0 0f 85 45 08 RSP: 0018:ffffc900063ff600 EFLAGS: 00010246 RAX: 000000006f15f28c RBX: ffff8881105da800 RCX: 1ffff11021dff6fe RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffff88810effb7f0 RBP: ffffc900063ff730 R08: ffffffff8249afaa R09: ffffed10270f722a R10: ffffed10270f722a R11: 1ffff110270f7229 R12: ffff888119097008 R13: ffff88810effb7f4 R14: 0000000000000000 R15: 0000000000000002 FS: 00007f56848f8700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000200 CR3: 0000000114e20000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __dev_xmit_skb net/core/dev.c:3823 [inline] __dev_queue_xmit+0xdde/0x2bb0 net/core/dev.c:4136 dev_queue_xmit+0x17/0x20 net/core/dev.c:4204 packet_snd net/packet/af_packet.c:3022 [inline] packet_sendmsg+0x4cfc/0x6880 net/packet/af_packet.c:3054 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] __sys_sendto+0x541/0x700 net/socket.c:1982 __do_sys_sendto net/socket.c:1994 [inline] __se_sys_sendto net/socket.c:1990 [inline] __x64_sys_sendto+0xe5/0x100 net/socket.c:1990 do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f56857820e9 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:00007f56848f8168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f5685894f60 RCX: 00007f56857820e9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f56857dc08d R08: 0000000020000080 R09: 0000000000000014 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffefe01269f R14: 00007f56848f8300 R15: 0000000000022000 Modules linked in: ---[ end trace 1887423fee5120b2 ]--- RIP: 0010:netem_enqueue+0x29e6/0x3900 net/sched/sch_netem.c:516 Code: 45 8b 75 70 4c 89 6c 24 28 49 83 c5 74 4c 89 e9 48 c1 e9 03 8a 14 31 84 d2 48 8b 5c 24 10 0f 85 32 08 00 00 45 2b 75 00 31 d2 <41> f7 f6 49 01 d4 4c 89 e0 48 c1 e8 03 8a 04 30 84 c0 0f 85 45 08 RSP: 0018:ffffc900063ff600 EFLAGS: 00010246 RAX: 000000006f15f28c RBX: ffff8881105da800 RCX: 1ffff11021dff6fe RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffff88810effb7f0 RBP: ffffc900063ff730 R08: ffffffff8249afaa R09: ffffed10270f722a R10: ffffed10270f722a R11: 1ffff110270f7229 R12: ffff888119097008 R13: ffff88810effb7f4 R14: 0000000000000000 R15: 0000000000000002 FS: 00007f56848f8700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000200 CR3: 0000000114e20000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 45 8b 75 70 mov 0x70(%r13),%r14d 4: 4c 89 6c 24 28 mov %r13,0x28(%rsp) 9: 49 83 c5 74 add $0x74,%r13 d: 4c 89 e9 mov %r13,%rcx 10: 48 c1 e9 03 shr $0x3,%rcx 14: 8a 14 31 mov (%rcx,%rsi,1),%dl 17: 84 d2 test %dl,%dl 19: 48 8b 5c 24 10 mov 0x10(%rsp),%rbx 1e: 0f 85 32 08 00 00 jne 0x856 24: 45 2b 75 00 sub 0x0(%r13),%r14d 28: 31 d2 xor %edx,%edx * 2a: 41 f7 f6 div %r14d <-- trapping instruction 2d: 49 01 d4 add %rdx,%r12 30: 4c 89 e0 mov %r12,%rax 33: 48 c1 e8 03 shr $0x3,%rax 37: 8a 04 30 mov (%rax,%rsi,1),%al 3a: 84 c0 test %al,%al 3c: 0f .byte 0xf 3d: 85 45 08 test %eax,0x8(%rbp)