IPVS: set_ctl: invalid protocol: 0 0.0.0.0:0 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: 5297 Comm: syz-executor.0 Not tainted 4.14.180-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88806aa24640 task.stack: ffff888066b58000 RIP: 0010:dequeue_head net/sched/sch_fq_codel.c:125 [inline] RIP: 0010:fq_codel_drop net/sched/sch_fq_codel.c:173 [inline] RIP: 0010:fq_codel_enqueue+0x951/0x1070 net/sched/sch_fq_codel.c:235 RSP: 0018:ffff888066b5f760 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc9000627e000 RDX: 0000000000000000 RSI: ffffffff85182a99 RDI: 0000000000000000 RBP: ffff888066b5f840 R08: 0000010cf957f363 R09: ffff88821fff7048 R10: ffff88821fff7050 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff8880475c10c0 R15: ffff888066b5f8f0 FS: 00007fb2c77d5700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30421000 CR3: 00000000a8e02000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __dev_xmit_skb net/core/dev.c:3229 [inline] __dev_queue_xmit+0x12dc/0x25c0 net/core/dev.c:3493 packet_snd net/packet/af_packet.c:3012 [inline] packet_sendmsg+0x1bf7/0x54b0 net/packet/af_packet.c:3037 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xc5/0x100 net/socket.c:656 sock_write_iter+0x22c/0x370 net/socket.c:925 call_write_iter include/linux/fs.h:1778 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x44e/0x630 fs/read_write.c:482 vfs_write+0x192/0x4e0 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xf2/0x210 fs/read_write.c:582 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45ca29 RSP: 002b:00007fb2c77d4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000050c840 RCX: 000000000045ca29 RDX: 000000000000002c RSI: 0000000020000280 RDI: 0000000000000003 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000ce8 R14: 00000000004cf34a R15: 00007fb2c77d56d4 Code: 8b 54 24 68 3b 54 24 60 0f 83 bd 00 00 00 e8 27 1b 42 fc 48 8b 44 24 38 80 38 00 0f 85 25 05 00 00 49 8b 06 48 89 c2 48 c1 ea 03 <42> 80 3c 22 00 0f 85 1d 05 00 00 48 8b 10 48 8d 78 28 49 89 16 RIP: dequeue_head net/sched/sch_fq_codel.c:125 [inline] RSP: ffff888066b5f760 RIP: fq_codel_drop net/sched/sch_fq_codel.c:173 [inline] RSP: ffff888066b5f760 RIP: fq_codel_enqueue+0x951/0x1070 net/sched/sch_fq_codel.c:235 RSP: ffff888066b5f760 ---[ end trace 1b09cd5be7e19ed3 ]---