IPVS: ftp: loaded support on port[0] = 21 watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor2:19230] Modules linked in: CPU: 0 PID: 19230 Comm: syz-executor2 Not tainted 4.18.0-rc5+ #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rep_nop arch/x86/include/asm/processor.h:658 [inline] RIP: 0010:cpu_relax arch/x86/include/asm/processor.h:663 [inline] RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline] RIP: 0010:smp_call_function_single+0x357/0x500 kernel/smp.c:302 Code: 85 93 00 00 00 e8 89 c5 12 00 e9 be 00 00 00 8b 3a e8 fd 79 6e 00 45 85 f6 74 91 41 89 de eb 08 0f 1f 00 e8 6b c5 12 00 f3 90 <8b> 5c 24 58 4c 89 e7 e8 bd 6f 6e 00 8b 00 83 e0 01 83 e3 01 85 c0 RSP: 0018:ffff8801b6b1f900 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffffffff81555f95 RBX: 0000000000000001 RCX: ffff8801b6023b00 RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea000a482ba0 RBP: ffff8801b6b1f9d0 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000000 R11: ffffffff8117d090 R12: ffff8801b6b1f958 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b6024400 FS: 0000000001970940(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020317000 CR3: 00000001abb6a000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: task_function_call kernel/events/core.c:115 [inline] event_function_call+0x2ee/0x750 kernel/events/core.c:277 perf_remove_from_context kernel/events/core.c:2105 [inline] perf_event_release_kernel+0x855/0x1b70 kernel/events/core.c:4560 perf_release+0x5d/0x90 kernel/events/core.c:4647 __fput+0x458/0xa30 fs/file_table.c:209 ____fput+0x37/0x40 fs/file_table.c:243 task_work_run+0x22e/0x2b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:192 [inline] exit_to_usermode_loop arch/x86/entry/common.c:166 [inline] prepare_exit_to_usermode+0x35d/0x430 arch/x86/entry/common.c:197 syscall_return_slowpath+0x108/0x800 arch/x86/entry/common.c:268 do_syscall_64+0x1ad/0x230 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x40fb91 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:0000000000a3eab0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000014 RCX: 000000000040fb91 RDX: 0000000000000000 RSI: 0000000000738118 RDI: 0000000000000013 RBP: 0000000000000013 R08: 0000000000a3ea30 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000a3f160 R15: 00000000007034c0 Sending NMI from CPU 0 to CPUs 1: ------------[ cut here ]------------ kernel BUG at mm/kmsan/kmsan_entry.c:81! invalid opcode: 0000 [#1] SMP PTI CPU: 1 PID: 19291 Comm: syz-executor6 Not tainted 4.18.0-rc5+ #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kmsan_nmi_enter+0x42/0x70 mm/kmsan/kmsan_entry.c:80 Code: 00 74 27 65 8b 04 25 80 90 03 00 83 c0 01 83 f8 08 7d 27 65 89 04 25 80 90 03 00 65 c6 04 25 15 6e 0b 00 ff c3 0f 0b 90 eb fe <0f> 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe 0f 0b 66 90 66 2e RSP: 0018:fffffe0000049ea8 EFLAGS: 00010046 RAX: 0000000000000200 RBX: 0000000000000001 RCX: 00000000c0000101 RDX: 00000000ffff8802 RSI: ffffffff8a40136c RDI: 0000000000000480 RBP: fffffe0000049ef9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 00000001b2260000 R15: 0000000000000000 FS: 00007fdae6644700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2e41191db8 CR3: 00000001b2260000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace bb64e4a9a0da76d9 ]--- RIP: 0010:kmsan_nmi_enter+0x42/0x70 mm/kmsan/kmsan_entry.c:80 Code: 00 74 27 65 8b 04 25 80 90 03 00 83 c0 01 83 f8 08 7d 27 65 89 04 25 80 90 03 00 65 c6 04 25 15 6e 0b 00 ff c3 0f 0b 90 eb fe <0f> 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe 0f 0b 66 90 66 2e RSP: 0018:fffffe0000049ea8 EFLAGS: 00010046 RAX: 0000000000000200 RBX: 0000000000000001 RCX: 00000000c0000101 RDX: 00000000ffff8802 RSI: ffffffff8a40136c RDI: 0000000000000480 RBP: fffffe0000049ef9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 00000001b2260000 R15: 0000000000000000 FS: 00007fdae6644700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2e41191db8 CR3: 00000001b2260000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400