RBP: 00007fb65c0c947e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fb65c1ac050 R15: 00007ffc27beec68 watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz-executor.2:25173] Modules linked in: CPU: 1 PID: 25173 Comm: syz-executor.2 Tainted: G W 6.1.75-syzkaller-00089-g1794308d463f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] RIP: 0010:kvm_wait+0x147/0x180 arch/x86/kernel/kvm.c:1064 Code: 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 34 41 0f b6 45 00 44 38 f0 75 10 66 90 0f 00 2d eb 11 31 04 fb f4 24 ff ff ff fb e9 1e ff ff ff 44 89 e9 80 e1 07 38 c1 7c a3 4c RSP: 0018:ffffc90001e4efc0 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 1ffff920003c9dfc RCX: ffffffff8500089c RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffffea00075c5a68 RBP: ffffc90001e4f070 R08: dffffc0000000000 R09: fffff94000eb8b4e R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffffea00075c5a68 R14: 0000000000000003 R15: 1ffff920003c9e00 FS: 00007fb65cd2d6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002001f000 CR3: 00000001d7188000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:603 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6de/0xda0 kernel/locking/qspinlock.c:511 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock include/linux/spinlock.h:186 [inline] __raw_spin_lock include/linux/spinlock_api_smp.h:134 [inline] _raw_spin_lock+0x139/0x1b0 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:350 [inline] do_anonymous_page mm/memory.c:4199 [inline] handle_pte_fault mm/memory.c:5094 [inline] __handle_mm_fault mm/memory.c:5238 [inline] handle_mm_fault+0x2294/0x2f40 mm/memory.c:5378 do_user_addr_fault arch/x86/mm/fault.c:1414 [inline] handle_page_fault arch/x86/mm/fault.c:1506 [inline] exc_page_fault+0x24d/0x700 arch/x86/mm/fault.c:1562 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0010:copy_user_enhanced_fast_string+0xa/0x40 arch/x86/lib/copy_user_64.S:166 Code: ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01 cb 83 fa 40 72 38 89 d1 a4 31 c0 0f 01 ca c3 89 ca eb 0a 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0018:ffffc90001e4f588 EFLAGS: 00050206 RAX: ffffffff82743901 RBX: 00007ffffffeee30 RCX: 00000000000014e0 RDX: 00000000000101d0 RSI: 000000002001f000 RDI: ffff8881bafaedb8 RBP: ffffc90001e4f5b0 R08: dffffc0000000000 R09: ffffed10375f6053 R10: 0000000000000003 R11: dffffc0000000001 R12: 00000000000101d0 R13: dffffc0000000000 R14: ffff8881bafa00c8 R15: 0000000020010310 _copy_from_iter+0x3c9/0xe00 lib/iov_iter.c:631 copy_from_iter include/linux/uio.h:187 [inline] copy_from_iter_full include/linux/uio.h:194 [inline] tipc_msg_build+0x46d/0x1190 net/tipc/msg.c:404 __tipc_sendstream+0x9c2/0x1310 net/tipc/socket.c:1619 tipc_sendstream+0x55/0x70 net/tipc/socket.c:1550 sock_sendmsg_nosec net/socket.c:716 [inline] __sock_sendmsg net/socket.c:728 [inline] ____sys_sendmsg+0x5d3/0x9a0 net/socket.c:2504 ___sys_sendmsg net/socket.c:2558 [inline] __sys_sendmsg+0x2a9/0x390 net/socket.c:2587 __do_sys_sendmsg net/socket.c:2596 [inline] __se_sys_sendmsg net/socket.c:2594 [inline] __x64_sys_sendmsg+0x7f/0x90 net/socket.c:2594 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb65c07dca9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb65cd2d0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fb65c1ac050 RCX: 00007fb65c07dca9 RDX: 0000000000000000 RSI: 0000000020000240 RDI: 000000000000000a RBP: 00007fb65c0c947e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fb65c1ac050 R15: 00007ffc27beec68 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 25168 Comm: syz-executor.2 Tainted: G W 6.1.75-syzkaller-00089-g1794308d463f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:57 [inline] RIP: 0010:halt arch/x86/include/asm/irqflags.h:98 [inline] RIP: 0010:kvm_wait+0x117/0x180 arch/x86/kernel/kvm.c:1058 Code: 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 53 41 0f b6 45 00 44 38 f0 0f 85 63 ff ff ff 66 90 0f 00 2d 1a 12 31 04 f4 54 ff ff ff fa 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b RSP: 0018:ffffc900029ce640 EFLAGS: 00000046 RAX: 0000000000000003 RBX: 1ffff92000539ccc RCX: ffffffff8500089c RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88811216dd40 RBP: ffffc900029ce6f0 R08: dffffc0000000000 R09: ffffed102242dba9 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88811216dd40 R14: 0000000000000003 R15: 1ffff92000539cd0 FS: 00007fb65cd4e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001000 CR3: 00000001d7188000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:603 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6de/0xda0 kernel/locking/qspinlock.c:511 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock include/linux/spinlock.h:186 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline] _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162 queue_stack_map_push_elem+0x17a/0x570 kernel/bpf/queue_stack_maps.c:214 bpf_prog_216c997a1f42e404+0x37/0x3b bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline] __bpf_prog_run include/linux/filter.h:600 [inline] bpf_prog_run include/linux/filter.h:607 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2275 [inline] bpf_trace_run2+0x133/0x290 kernel/trace/bpf_trace.c:2314 __bpf_trace_contention_end+0xb/0x10 include/trace/events/lock.h:122 trace_contention_end include/trace/events/lock.h:122 [inline] __pv_queued_spin_lock_slowpath+0xd59/0xda0 kernel/locking/qspinlock.c:560 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock include/linux/spinlock.h:186 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline] _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162 queue_stack_map_push_elem+0x17a/0x570 kernel/bpf/queue_stack_maps.c:214 bpf_prog_216c997a1f42e404+0x37/0x3b bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline] __bpf_prog_run include/linux/filter.h:600 [inline] bpf_prog_run include/linux/filter.h:607 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2275 [inline] bpf_trace_run2+0x133/0x290 kernel/trace/bpf_trace.c:2314 __bpf_trace_tlb_flush+0x23/0x30 include/trace/events/tlb.h:38 trace_tlb_flush include/trace/events/tlb.h:38 [inline] flush_tlb_func+0x526/0x540 arch/x86/mm/tlb.c:875 smp_call_function_many_cond+0x6fd/0x930 kernel/smp.c:989 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1166 native_flush_tlb_multi+0x143/0x210 __flush_tlb_multi arch/x86/include/asm/paravirt.h:87 [inline] flush_tlb_multi arch/x86/mm/tlb.c:924 [inline] flush_tlb_mm_range+0x298/0x360 arch/x86/mm/tlb.c:1010 flush_tlb_page arch/x86/include/asm/tlbflush.h:240 [inline] ptep_clear_flush+0x115/0x150 mm/pgtable-generic.c:98 wp_page_copy+0xca9/0x1690 mm/memory.c:3248 do_wp_page+0xc25/0xdf0 handle_pte_fault mm/memory.c:5114 [inline] __handle_mm_fault mm/memory.c:5238 [inline] handle_mm_fault+0x15a2/0x2f40 mm/memory.c:5378 do_user_addr_fault arch/x86/mm/fault.c:1414 [inline] handle_page_fault arch/x86/mm/fault.c:1506 [inline] exc_page_fault+0x24d/0x700 arch/x86/mm/fault.c:1562 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0010:copy_user_enhanced_fast_string+0xa/0x40 arch/x86/lib/copy_user_64.S:166 Code: ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01 cb 83 fa 40 72 38 89 d1 a4 31 c0 0f 01 ca c3 89 ca eb 0a 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0018:ffffc900029cf728 EFLAGS: 00050206 RAX: ffffffff82741501 RBX: 00007ffffffeee30 RCX: 000000000000f5d0 RDX: 00000000000101d0 RSI: ffff8881b8040cc8 RDI: 0000000020001000 RBP: ffffc900029cf750 R08: dffffc0000000000 R09: ffffed103700a053 R10: 0000000000000003 R11: dffffc0000000001 R12: 00000000000101d0 R13: dffffc0000000000 R14: 0000000020000400 R15: ffff8881b80400c8 _copy_to_iter+0x3dc/0xe10 lib/iov_iter.c:527 copy_to_iter include/linux/uio.h:179 [inline] simple_copy_to_iter+0x50/0x70 net/core/datagram.c:513 __skb_datagram_iter+0xcd/0x780 net/core/datagram.c:419 skb_copy_datagram_iter+0x43/0x180 net/core/datagram.c:527 skb_copy_datagram_msg include/linux/skbuff.h:3931 [inline] tipc_recvstream+0x7a4/0xf70 net/tipc/socket.c:2071 ____sys_recvmsg+0x285/0x530 ___sys_recvmsg net/socket.c:2765 [inline] __sys_recvmsg+0x2e9/0x3d0 net/socket.c:2795 __do_sys_recvmsg net/socket.c:2805 [inline] __se_sys_recvmsg net/socket.c:2802 [inline] __x64_sys_recvmsg+0x7f/0x90 net/socket.c:2802 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb65c07dca9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb65cd4e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 00007fb65c1abf80 RCX: 00007fb65c07dca9 RDX: 0000000000001f00 RSI: 0000000020000500 RDI: 0000000000000009 RBP: 00007fb65c0c947e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fb65c1abf80 R15: 00007ffc27beec68