divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 16582 Comm: syz-executor.5 Not tainted 5.5.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:tabledist.part.0+0x13f/0x170 net/sched/sch_netem.c:333 Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 78 79 18 fb 48 81 eb 00 10 00 00 eb a5 e8 6a 79 18 fb 43 8d 0c 24 44 89 f0 31 d2 f1 4d 29 e5 49 01 d5 eb c5 48 89 df e8 2f 06 57 fb e9 0d ff ff RSP: 0018:ffffc90001606f78 EFLAGS: 00010246 RAX: 00000000d1cdacb0 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff865cbbd6 RDI: 0000000000000005 RBP: ffffc90001606fa0 R08: ffff88808a796580 R09: ffffed1012f7b62f R10: ffffed1012f7b62e R11: ffff888097bdb177 R12: ffffffff80000000 R13: 0000000000020000 R14: 00000000d1cdacb0 R15: ffff888097bdb000 FS: 00007fcc1f6d6700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000d1b8 CR3: 000000009da89000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tabledist net/sched/sch_netem.c:536 [inline] netem_enqueue+0x416/0x2e10 net/sched/sch_netem.c:536 __dev_xmit_skb net/core/dev.c:3721 [inline] __dev_queue_xmit+0x152e/0x35c0 net/core/dev.c:4032 dev_queue_xmit+0x18/0x20 net/core/dev.c:4096 br_dev_queue_push_xmit+0x3f3/0x5e0 net/bridge/br_forward.c:52 NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] br_forward_finish+0xfa/0x3f0 net/bridge/br_forward.c:65 NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] __br_forward+0x63c/0xaf0 net/bridge/br_forward.c:109 deliver_clone+0x61/0xc0 net/bridge/br_forward.c:125 maybe_deliver+0x2e1/0x3b0 net/bridge/br_forward.c:181 br_flood+0x13a/0x3d0 net/bridge/br_forward.c:223 br_dev_xmit+0xca1/0x1540 net/bridge/br_device.c:103 __netdev_start_xmit include/linux/netdevice.h:4510 [inline] netdev_start_xmit include/linux/netdevice.h:4524 [inline] xmit_one net/core/dev.c:3470 [inline] dev_hard_start_xmit+0x1a3/0x9b0 net/core/dev.c:3486 __dev_queue_xmit+0x2b05/0x35c0 net/core/dev.c:4063 dev_queue_xmit+0x18/0x20 net/core/dev.c:4096 pppoe_sendmsg+0x65e/0x7f0 drivers/net/ppp/pppoe.c:897 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:672 ____sys_sendmsg+0x358/0x880 net/socket.c:2343 ___sys_sendmsg+0x100/0x170 net/socket.c:2397 __sys_sendmmsg+0x1bf/0x4d0 net/socket.c:2487 __do_sys_sendmmsg net/socket.c:2516 [inline] __se_sys_sendmmsg net/socket.c:2513 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2513 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b399 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcc1f6d5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fcc1f6d66d4 RCX: 000000000045b399 RDX: 04000000000000eb RSI: 000000002000d180 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000008cb R14: 00000000004ca256 R15: 000000000075bf2c Modules linked in: ---[ end trace 8c95b19f5908485e ]--- RIP: 0010:tabledist.part.0+0x13f/0x170 net/sched/sch_netem.c:333 Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 78 79 18 fb 48 81 eb 00 10 00 00 eb a5 e8 6a 79 18 fb 43 8d 0c 24 44 89 f0 31 d2 f1 4d 29 e5 49 01 d5 eb c5 48 89 df e8 2f 06 57 fb e9 0d ff ff RSP: 0018:ffffc90001606f78 EFLAGS: 00010246 RAX: 00000000d1cdacb0 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff865cbbd6 RDI: 0000000000000005 RBP: ffffc90001606fa0 R08: ffff88808a796580 R09: ffffed1012f7b62f R10: ffffed1012f7b62e R11: ffff888097bdb177 R12: ffffffff80000000 R13: 0000000000020000 R14: 00000000d1cdacb0 R15: ffff888097bdb000 FS: 00007fcc1f6d6700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000d1b8 CR3: 000000009da89000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400