watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz.1.590:2545] Modules linked in: CPU: 1 PID: 2545 Comm: syz.1.590 Not tainted 6.1.141-syzkaller-00033-g36d69f6a49eb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:csd_lock_wait kernel/smp.c:453 [inline] RIP: 0010:smp_call_function_many_cond+0x872/0x960 kernel/smp.c:998 Code: 41 8b 1f 89 de 83 e6 01 31 ff e8 39 66 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 05 62 09 00 e9 38 ff ff ff f3 90 <41> 0f b6 44 1d 00 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff RSP: 0018:ffffc90000d9f300 EFLAGS: 00000246 RAX: ffffffff8166953e RBX: dffffc0000000000 RCX: 0000000000080000 RDX: ffffc90001329000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc90000d9f428 R08: dffffc0000000000 R09: ffffed103ee27213 R10: 0000000000000000 R11: ffffffff81341b30 R12: 1ffff1103ee27210 R13: 1ffff1103ee07ab9 R14: 0000000000000000 R15: ffff8881f703d5c8 FS: 00007f3835ea66c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8006dd9f98 CR3: 000000012bc60000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: on_each_cpu_cond_mask+0x43/0x80 kernel/smp.c:1166 on_each_cpu include/linux/smp.h:71 [inline] flush_tlb_kernel_range+0x1a0/0x240 arch/x86/mm/tlb.c:1106 kasan_release_vmalloc+0xa2/0xb0 mm/kasan/shadow.c:496 __purge_vmap_area_lazy+0xd47/0x1850 mm/vmalloc.c:1781 _vm_unmap_aliases+0x30f/0x370 mm/vmalloc.c:2184 vm_unmap_aliases+0x19/0x20 mm/vmalloc.c:2207 change_page_attr_set_clr+0x311/0xa10 arch/x86/mm/pat/set_memory.c:1821 change_page_attr_clear arch/x86/mm/pat/set_memory.c:1878 [inline] set_memory_ro+0x89/0xd0 arch/x86/mm/pat/set_memory.c:2069 bpf_trampoline_update+0xa34/0x13f0 kernel/bpf/trampoline.c:476 __bpf_trampoline_link_prog kernel/bpf/trampoline.c:584 [inline] bpf_trampoline_link_prog+0x4f8/0x6f0 kernel/bpf/trampoline.c:597 bpf_tracing_prog_attach+0x833/0xfa0 kernel/bpf/syscall.c:3122 bpf_raw_tp_link_attach+0x3a5/0x550 kernel/bpf/syscall.c:3336 bpf_raw_tracepoint_open+0x258/0x480 kernel/bpf/syscall.c:3394 __sys_bpf+0x4d1/0x780 kernel/bpf/syscall.c:5044 __do_sys_bpf kernel/bpf/syscall.c:5106 [inline] __se_sys_bpf kernel/bpf/syscall.c:5104 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5104 x64_sys_call+0x488/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f3834f8e929 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3835ea6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f38351b5fa0 RCX: 00007f3834f8e929 RDX: 0000000000000010 RSI: 0000200000000040 RDI: 0000000000000011 RBP: 00007f3835010b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f38351b5fa0 R15: 00007fff35d39da8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2551 Comm: syz.4.592 Not tainted 6.1.141-syzkaller-00033-g36d69f6a49eb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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+0xcc/0x140 arch/x86/kernel/kvm.c:1058 Code: 20 f6 44 24 21 02 75 24 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 48 0f b6 07 40 38 f0 75 a6 66 90 0f 00 2d b5 ae 13 04 f4 9a fa 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 3f 0f b6 07 RSP: 0018:ffffc90000d77520 EFLAGS: 00000046 RAX: 0000000000000003 RBX: ffff8881f7027c40 RCX: ffffffff84f06582 RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff8881f7027c40 RBP: ffffc90000d775b0 R08: dffffc0000000000 R09: ffffed103ee04f89 R10: ffffed103ee04f89 R11: 1ffff1103ee04f88 R12: 1ffff1103ee00001 R13: ffff8881f7038c94 R14: dffffc0000000000 R15: 1ffff920001aeea4 FS: 00007f8006dda6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2dc1cff8 CR3: 000000012d7d3000 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+0x690/0xc40 kernel/locking/qspinlock.c:511 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath+0x47/0x50 arch/x86/include/asm/qspinlock.h:51 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline] _raw_spin_lock_irqsave+0x108/0x110 kernel/locking/spinlock.c:162 lock_timer_base+0x127/0x270 kernel/time/timer.c:1005 __mod_timer+0x10a/0xb30 kernel/time/timer.c:1078 add_timer+0x68/0x80 kernel/time/timer.c:1218 __queue_delayed_work+0x173/0x200 kernel/workqueue.c:1686 queue_delayed_work_on+0xdb/0x150 kernel/workqueue.c:1711 queue_delayed_work include/linux/workqueue.h:525 [inline] schedule_delayed_monitor_work kernel/rcu/tree.c:3216 [inline] kvfree_call_rcu+0x436/0x7a0 kernel/rcu/tree.c:3472 trie_delete_elem+0x572/0x720 kernel/bpf/lpm_trie.c:545 bpf_prog_2c29ac5cdc6b1842+0x3a/0x3e bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2283 [inline] bpf_trace_run3+0x113/0x270 kernel/trace/bpf_trace.c:2323 __bpf_trace_timer_start+0x2b/0x40 include/trace/events/timer.h:53 trace_timer_start include/trace/events/timer.h:53 [inline] enqueue_timer+0x337/0x480 kernel/time/timer.c:615 __mod_timer+0x79f/0xb30 kernel/time/timer.c:-1 mod_timer+0x1f/0x30 kernel/time/timer.c:1172 sk_reset_timer+0x22/0xb0 net/core/sock.c:3390 tipc_sk_finish_conn+0x14e/0x7e0 net/tipc/socket.c:1675 tipc_socketpair+0x2a4/0x520 net/tipc/socket.c:3350 __sys_socketpair+0x2b5/0x5b0 net/socket.c:1740 __do_sys_socketpair net/socket.c:1776 [inline] __se_sys_socketpair net/socket.c:1773 [inline] __x64_sys_socketpair+0x9b/0xb0 net/socket.c:1773 x64_sys_call+0x6e/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:54 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f8005f8e929 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8006dda038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035 RAX: ffffffffffffffda RBX: 00007f80061b5fa0 RCX: 00007f8005f8e929 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 000000000000001e RBP: 00007f8006010b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000200000000940 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f80061b5fa0 R15: 00007ffc1262fe28