IPVS: ftp: loaded support on port[0] = 21 Trying to set illegal importance in message Started in network mode Own node identity 9, cluster identity 4711 32-bit node address hash set to 9 watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.5:15622] Modules linked in: irq event stamp: 30016 hardirqs last enabled at (30015): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (30016): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (24896): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (24807): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (24807): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 15622 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__output_copy kernel/events/internal.h:176 [inline] RIP: 0010:perf_output_read_group kernel/events/core.c:6221 [inline] RIP: 0010:perf_output_read+0xe0e/0x1270 kernel/events/core.c:6254 Code: 89 f9 48 c1 e9 03 42 80 3c 29 00 0f 85 77 01 00 00 48 8b 84 c2 20 01 00 00 48 c7 43 18 00 10 00 00 48 89 43 28 e8 e2 44 ec ff <31> ff 48 89 ee e8 68 46 ec ff 48 85 ed 0f 85 cf fe ff ff e8 ca 44 RSP: 0018:ffff888054d4f158 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: ffff888054d4f4a0 RCX: ffffc90006122000 RDX: 0000000000040000 RSI: ffffffff8176408e RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000007 R11: ffffffff8c66505b R12: ffff888054d4f2a0 R13: dffffc0000000000 R14: 0000000000000f50 R15: 0000000000000010 FS: 00007f8cad8e3700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020f9f000 CR3: 00000000968fd000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_output_sample+0xc1b/0x18f0 kernel/events/core.c:6296 __perf_event_output kernel/events/core.c:6621 [inline] perf_event_output_forward+0x12f/0x270 kernel/events/core.c:6634 __perf_event_overflow+0x13c/0x370 kernel/events/core.c:7907 perf_swevent_overflow kernel/events/core.c:7983 [inline] perf_swevent_event+0x347/0x550 kernel/events/core.c:8011 do_perf_sw_event kernel/events/core.c:8124 [inline] ___perf_sw_event+0x309/0x570 kernel/events/core.c:8155 __perf_sw_event+0x58/0x120 kernel/events/core.c:8167 perf_sw_event include/linux/perf_event.h:1074 [inline] __do_page_fault+0x80e/0xd60 arch/x86/mm/fault.c:1453 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0010:copy_user_enhanced_fast_string+0xe/0x20 arch/x86/lib/copy_user_64.S:181 Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 0f 1f 80 00 00 00 00 0f 01 cb 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 01 ca c3 66 2e 0f 1f 84 00 00 00 00 00 0f 01 cb 83 RSP: 0018:ffff888054d4fa50 EFLAGS: 00050202 RAX: ffffed100b21ef50 RBX: 0000000000007a80 RCX: 0000000000005fcb RDX: 0000000000007a80 RSI: 0000000020f9f000 RDI: ffff8880590f1ab5 RBP: 0000000020f9d54b R08: 0000000000000001 R09: ffffed100b21ef4f R10: ffff8880590f7a7f R11: 0000000000000000 R12: ffff8880590f0000 R13: 0000000020fa4fcb R14: 00007ffffffff000 R15: 0000000000000000 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:71 [inline] copyin+0xcd/0xf0 lib/iov_iter.c:146 _copy_from_iter_full+0x1df/0x7c0 lib/iov_iter.c:724 copy_from_iter_full include/linux/uio.h:124 [inline] skb_do_copy_data_nocache include/net/sock.h:1971 [inline] skb_copy_to_page_nocache include/net/sock.h:1997 [inline] tcp_sendmsg_locked+0x126b/0x2f60 net/ipv4/tcp.c:1364 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1462 inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 __sys_sendto+0x21a/0x320 net/socket.c:1899 __do_sys_sendto net/socket.c:1911 [inline] __se_sys_sendto net/socket.c:1907 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1907 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8caef6e049 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:00007f8cad8e3168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f8caf080f60 RCX: 00007f8caef6e049 RDX: ffffffffffffffef RSI: 0000000020d7cfcb RDI: 0000000000000006 RBP: 00007f8caefc808d R08: 0000000000000000 R09: 0000000000000053 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff3feb2f3f R14: 00007f8cad8e3300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60 ---------------- Code disassembly (best guess): 0: 89 f9 mov %edi,%ecx 2: 48 c1 e9 03 shr $0x3,%rcx 6: 42 80 3c 29 00 cmpb $0x0,(%rcx,%r13,1) b: 0f 85 77 01 00 00 jne 0x188 11: 48 8b 84 c2 20 01 00 mov 0x120(%rdx,%rax,8),%rax 18: 00 19: 48 c7 43 18 00 10 00 movq $0x1000,0x18(%rbx) 20: 00 21: 48 89 43 28 mov %rax,0x28(%rbx) 25: e8 e2 44 ec ff callq 0xffec450c * 2a: 31 ff xor %edi,%edi <-- trapping instruction 2c: 48 89 ee mov %rbp,%rsi 2f: e8 68 46 ec ff callq 0xffec469c 34: 48 85 ed test %rbp,%rbp 37: 0f 85 cf fe ff ff jne 0xffffff0c 3d: e8 .byte 0xe8 3e: ca .byte 0xca 3f: 44 rex.R