watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.6.321:7259] Modules linked in: irq event stamp: 0 hardirqs last enabled at (0): [<0000000000000000>] 0x0 hardirqs last disabled at (0): [] rcu_lock_acquire include/linux/rcupdate.h:337 [inline] hardirqs last disabled at (0): [] rcu_read_lock include/linux/rcupdate.h:849 [inline] hardirqs last disabled at (0): [] copy_process+0x9fa/0x3d50 kernel/fork.c:2260 softirqs last enabled at (0): [] rcu_lock_acquire include/linux/rcupdate.h:337 [inline] softirqs last enabled at (0): [] rcu_read_lock include/linux/rcupdate.h:849 [inline] softirqs last enabled at (0): [] copy_process+0x9fa/0x3d50 kernel/fork.c:2260 softirqs last disabled at (0): [<0000000000000000>] 0x0 CPU: 1 UID: 0 PID: 7259 Comm: syz.6.321 Not tainted 6.13.0-syzkaller-gd0d106a2bd21 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline] RIP: 0010:write_comp_data kernel/kcov.c:246 [inline] RIP: 0010:__sanitizer_cov_trace_switch+0xab/0x120 kernel/kcov.c:351 Code: 24 20 65 4c 8b 1c 25 00 d6 03 00 31 d2 eb 08 48 ff c2 49 39 d2 74 71 4c 8b 74 d6 10 65 8b 05 f4 66 64 7e 25 00 01 ff 00 74 11 <3d> 00 01 00 00 75 de 41 83 bb 1c 16 00 00 00 74 d4 41 8b 83 f8 15 RSP: 0018:ffffc90000a18328 EFLAGS: 00000206 RAX: 0000000000000100 RBX: 0000000000000004 RCX: ffff888051c75a00 RDX: 000000000000001d RSI: ffffffff8e98ee60 RDI: 0000000000000004 RBP: 0000000000000007 R08: 0000000000000005 R09: ffffffff81a15cb5 R10: 0000000000000020 R11: ffff888051c75a00 R12: dffffc0000000000 R13: 0000000000000078 R14: 000000000000001d R15: 000000000002d444 FS: 000055555b39e500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb6da1b4ac0 CR3: 000000005c724000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: rb_event_length+0x45/0x400 kernel/trace/ring_buffer.c:218 rb_read_data_buffer+0x3fd/0x520 kernel/trace/ring_buffer.c:1749 check_buffer+0x35e/0x850 kernel/trace/ring_buffer.c:4221 __rb_reserve_next kernel/trace/ring_buffer.c:4320 [inline] rb_reserve_next_event kernel/trace/ring_buffer.c:4452 [inline] ring_buffer_lock_reserve+0x12a9/0x21c0 kernel/trace/ring_buffer.c:4511 __trace_buffer_lock_reserve kernel/trace/trace.c:1020 [inline] trace_event_buffer_lock_reserve+0x2ab/0x6a0 kernel/trace/trace.c:2748 trace_event_buffer_reserve+0x2b7/0x3f0 kernel/trace/trace_events.c:654 do_trace_event_raw_event_bpf_trace_printk kernel/trace/bpf_trace.h:11 [inline] trace_event_raw_event_bpf_trace_printk+0x102/0x260 kernel/trace/bpf_trace.h:11 trace_bpf_trace_printk+0x186/0x1f0 kernel/trace/bpf_trace.h:11 ____bpf_trace_printk kernel/trace/bpf_trace.c:380 [inline] bpf_trace_printk+0x1bf/0x230 kernel/trace/bpf_trace.c:363 bpf_prog_0605f9f479290f07+0x38/0x3c bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline] __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run include/linux/filter.h:708 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2371 [inline] bpf_trace_run1+0x2ca/0x520 kernel/trace/bpf_trace.c:2411 trace_rcu_utilization+0x1b4/0x1e0 include/trace/events/rcu.h:27 rcu_core+0x1161/0x17a0 kernel/rcu/tree.c:2810 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:rcu_read_unlock_special+0x88/0x570 kernel/rcu/tree_plugin.h:694 Code: f1 f1 f1 00 f2 f2 f2 49 89 04 14 66 41 c7 44 14 09 f3 f3 41 c6 44 14 0b f3 65 44 8b 3d 69 d7 7d 7e 41 f7 c7 00 00 f0 00 74 49 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 22 00 00 00 00 66 42 c7 44 22 RSP: 0018:ffffc90003b37c20 EFLAGS: 00000206 RAX: 2c4c28c0134ba500 RBX: 1ffff92000766f8c RCX: ffffffff81a71f9c RDX: dffffc0000000000 RSI: ffffffff8c6011a0 RDI: ffffffff81860242 RBP: ffffc90003b37cf8 R08: ffffffff901b6237 R09: 1ffffffff2036c46 R10: dffffc0000000000 R11: fffffbfff2036c47 R12: 1ffff92000766f88 R13: ffff888051c75e60 R14: ffffc90003b37c60 R15: 0000000000000000 __rcu_read_unlock+0xa1/0x110 kernel/rcu/tree_plugin.h:438 dput+0x197/0x2b0 fs/dcache.c:866 __fput+0x5ba/0xa50 fs/file_table.c:458 task_work_run+0x24f/0x310 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7145d8cd29 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:00007ffc0eb77678 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f7145fa7ba0 RCX: 00007f7145d8cd29 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f7145fa7ba0 R08: 0000000000000234 R09: 00007ffc0eb7796f R10: 00000000003ffba8 R11: 0000000000000246 R12: 000000000001a377 R13: 00007f7145fa6080 R14: 0000000000000032 R15: ffffffffffffffff Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 7274 Comm: syz.8.324 Not tainted 6.13.0-syzkaller-gd0d106a2bd21 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline] RIP: 0010:kvm_wait+0x250/0x2c0 arch/x86/kernel/kvm.c:1064 Code: 3b 45 0f b6 f6 44 89 ff 44 89 f6 e8 fa 5a 54 00 e8 25 12 5c 00 45 38 f7 75 15 66 90 e8 69 5a 54 00 0f 00 2d 32 fb bc 0a fb f4 50 fe ff ff e8 56 5a 54 00 fb e9 45 fe ff ff 89 d9 80 e1 07 38 RSP: 0018:ffffc90003517880 EFLAGS: 000002c7 RAX: ffffffff814b0e87 RBX: ffff888023492dc8 RCX: 0000000000080000 RDX: ffffc9000f77d000 RSI: 0000000000003ffe RDI: 0000000000003fff RBP: ffffc90003517950 R08: ffffffff901b6237 R09: 1ffffffff2036c46 R10: dffffc0000000000 R11: fffffbfff2036c47 R12: 1ffff920006a2f14 R13: dffffc0000000000 R14: 0000000000000003 R15: 0000000000000003 FS: 00007f0eff8166c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0eff815f98 CR3: 00000000582ea000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:589 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:466 [inline] __pv_queued_spin_lock_slowpath+0x8d0/0xdb0 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:577 [inline] queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x272/0x370 kernel/locking/spinlock_debug.c:116 spin_lock include/linux/spinlock.h:351 [inline] d_instantiate+0x64/0xa0 fs/dcache.c:1902 alloc_path_pseudo fs/file_table.c:360 [inline] alloc_file_pseudo+0x19e/0x290 fs/file_table.c:372 __anon_inode_getfile fs/anon_inodes.c:109 [inline] __anon_inode_getfd fs/anon_inodes.c:234 [inline] anon_inode_getfd+0xce/0x1e0 fs/anon_inodes.c:269 map_create+0xe1f/0x11c0 kernel/bpf/syscall.c:1510 __sys_bpf+0x6d1/0x810 kernel/bpf/syscall.c:5776 __do_sys_bpf kernel/bpf/syscall.c:5901 [inline] __se_sys_bpf kernel/bpf/syscall.c:5899 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5899 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0efe98cd29 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:00007f0eff816038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f0efeba5fa0 RCX: 00007f0efe98cd29 RDX: 0000000000000048 RSI: 0000000020000100 RDI: 0000000000000000 RBP: 00007f0efea0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f0efeba5fa0 R15: 00007fff35c38e58