Warning: Permanently added '10.128.0.184' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 166.223060][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 166.230126][ C1] rcu: 0-....: (1 GPs behind) idle=945/1/0x4000000000000002 softirq=6202/6203 fqs=5250 [ 166.240462][ C1] (detected by 1, t=10502 jiffies, g=5769, q=144) [ 166.246977][ C1] Sending NMI from CPU 1 to CPUs 0: [ 166.252183][ C0] NMI backtrace for cpu 0 [ 166.252206][ C0] CPU: 0 PID: 4348 Comm: syz-executor339 Not tainted 5.15.189-syzkaller #0 [ 166.252221][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 166.252235][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x32/0x60 [ 166.252266][ C0] Code: 94 ab 8a 7e 65 8b 15 95 ab 8a 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 34 16 00 00 00 74 2c 8b 91 10 16 00 00 <83> fa 02 75 21 48 8b 91 18 16 00 00 48 8b 32 48 8d 7e 01 8b 89 14 [ 166.252277][ C0] RSP: 0018:ffffc900032ff220 EFLAGS: 00000046 [ 166.252289][ C0] RAX: ffffffff8196e746 RBX: 0000000000000005 RCX: ffff8880291b5940 [ 166.252299][ C0] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000001 [ 166.252307][ C0] RBP: ffff8880b90350d0 R08: dffffc0000000000 R09: ffffed1005236b29 [ 166.252317][ C0] R10: ffffed1005236b29 R11: 1ffff11005236b28 R12: 0000000000000001 [ 166.252327][ C0] R13: ffff888074e637a8 R14: 1ffff1100e9cc6f5 R15: 0000000000000005 [ 166.252336][ C0] FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 [ 166.252347][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 166.252357][ C0] CR2: 00007fc05c8d40f0 CR3: 000000001f165000 CR4: 00000000003506f0 [ 166.252368][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 166.252376][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 166.252385][ C0] Call Trace: [ 166.252391][ C0] [ 166.252396][ C0] perf_swevent_event+0x306/0x530 [ 166.252416][ C0] perf_tp_event+0x32c/0xb50 [ 166.252429][ C0] ? __perf_event_overflow+0x415/0x530 [ 166.252444][ C0] ? perf_trace_run_bpf_submit+0x1c0/0x1c0 [ 166.252457][ C0] ? perf_swevent_event+0x50e/0x530 [ 166.252487][ C0] ? update_load_avg+0xbea/0x1130 [ 166.252504][ C0] perf_trace_run_bpf_submit+0xf3/0x1c0 [ 166.252520][ C0] perf_trace_preemptirq_template+0x2be/0x380 [ 166.252537][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 166.252556][ C0] ? trace_event_raw_event_preemptirq_template+0x270/0x270 [ 166.252571][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 166.252589][ C0] ? lock_chain_count+0x20/0x20 [ 166.252605][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 166.252617][ C0] trace_irq_enable_rcuidle+0x108/0x180 [ 166.252632][ C0] trace_hardirqs_on+0x57/0x80 [ 166.252645][ C0] asm_sysvec_irq_work+0x16/0x20 [ 166.252659][ C0] RIP: 0010:rcu_read_unlock_special+0x84/0x480 [ 166.252674][ C0] Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 7d 16 9e 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b [ 166.252684][ C0] RSP: 0018:ffffc900032ff760 EFLAGS: 00000206 [ 166.252695][ C0] RAX: 0ac63532071cda00 RBX: 1ffff9200065fef0 RCX: 0ac63532071cda00 [ 166.252705][ C0] RDX: dffffc0000000000 RSI: ffffffff8a0b15c0 RDI: ffffffff8a599340 [ 166.252714][ C0] RBP: ffffc900032ff830 R08: dffffc0000000000 R09: fffffbfff1ff6e19 [ 166.252725][ C0] R10: fffffbfff1ff6e19 R11: 1ffffffff1ff6e18 R12: ffffffff8c120800 [ 166.252735][ C0] R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001 [ 166.252752][ C0] ? __rcu_read_unlock+0xd0/0xd0 [ 166.252764][ C0] ? rcu_lock_acquire+0x30/0x30 [ 166.252779][ C0] ? __lock_acquire+0x7c60/0x7c60 [ 166.252795][ C0] __rcu_read_unlock+0x78/0xd0 [ 166.252808][ C0] __unlock_page_memcg+0xea/0x100 [ 166.252825][ C0] unmap_page_range+0xfbc/0x2520 [ 166.252849][ C0] ? uprobe_munmap+0x165/0x3f0 [ 166.252868][ C0] unmap_vmas+0x11b/0x230 [ 166.252882][ C0] ? uprobe_clear_state+0x4f/0x460 [ 166.252896][ C0] ? unmap_page_range+0x2520/0x2520 [ 166.252910][ C0] ? __mutex_lock_common+0x431/0x2390 [ 166.252928][ C0] ? memset+0x1e/0x40 [ 166.252944][ C0] exit_mmap+0x38f/0x5f0 [ 166.252959][ C0] ? vm_brk+0x20/0x20 [ 166.252983][ C0] ? uprobe_clear_state+0x2f6/0x460 [ 166.252995][ C0] ? mm_update_next_owner+0x522/0x640 [ 166.253013][ C0] __mmput+0x115/0x3b0 [ 166.253026][ C0] exit_mm+0x567/0x6c0 [ 166.253040][ C0] ? xacct_add_tsk+0x4b0/0x4b0 [ 166.253056][ C0] ? do_exit+0x20a0/0x20a0 [ 166.253070][ C0] ? __ia32_sys_timer_delete+0x40/0x40 [ 166.253085][ C0] ? hrtimer_try_to_cancel+0x3c9/0x410 [ 166.253099][ C0] ? taskstats_exit+0x439/0xab0 [ 166.253114][ C0] ? tty_audit_exit+0x14e/0x1f0 [ 166.253131][ C0] do_exit+0x5a1/0x20a0 [ 166.253147][ C0] ? put_task_struct+0x80/0x80 [ 166.253161][ C0] ? rcu_nmi_exit+0x6f/0xf0 [ 166.253176][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 166.253193][ C0] ? lock_chain_count+0x20/0x20 [ 166.253209][ C0] do_group_exit+0x12e/0x300 [ 166.253225][ C0] __x64_sys_exit_group+0x3b/0x40 [ 166.253240][ C0] do_syscall_64+0x4c/0xa0 [ 166.253255][ C0] ? clear_bhb_loop+0x30/0x80 [ 166.253267][ C0] ? clear_bhb_loop+0x30/0x80 [ 166.253280][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 166.253297][ C0] RIP: 0033:0x7fc05c857ef9 [ 166.253308][ C0] Code: Unable to access opcode bytes at RIP 0x7fc05c857ecf. [ 166.253314][ C0] RSP: 002b:00007fff5c2dc358 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 166.253327][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc05c857ef9 [ 166.253336][ C0] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 166.253344][ C0] RBP: 00007fc05c8d3290 R08: ffffffffffffffb8 R09: 0000000000000000 [ 166.253354][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fc05c8d3290 [ 166.253363][ C0] R13: 0000000000000000 R14: 00007fc05c8d3ce0 R15: 00007fc05c829090 [ 166.253378][ C0] [ 168.863130][ T1324] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-... } 10766 jiffies s: 1537 root: 0x1/. [ 168.875572][ T1324] rcu: blocking rcu_node structures (internal RCU debug): [ 168.882814][ T1324] Task dump for CPU 0: [ 168.886976][ T1324] task:syz-executor339 state:R running task stack:26752 pid: 4348 ppid: 4180 flags:0x00000008 [ 168.897953][ T1324] Call Trace: [ 168.901333][ T1324] [ 168.904326][ T1324] ? update_load_avg+0xbea/0x1130 [ 168.909809][ T1324] ? perf_trace_run_bpf_submit+0xf3/0x1c0 [ 168.915689][ T1324] ? perf_trace_preemptirq_template+0x2be/0x380 [ 168.922111][ T1324] ? asm_sysvec_irq_work+0x16/0x20 [ 168.927605][ T1324] ? trace_event_raw_event_preemptirq_template+0x270/0x270 [ 168.935615][ T1324] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 168.941709][ T1324] ? lock_chain_count+0x20/0x20 [ 168.946892][ T1324] ? asm_sysvec_irq_work+0x16/0x20 [ 168.952111][ T1324] ? trace_irq_enable_rcuidle+0x108/0x180 [ 168.958181][ T1324] ? trace_hardirqs_on+0x57/0x80 [ 168.963191][ T1324] ? asm_sysvec_irq_work+0x16/0x20 [ 168.968348][ T1324] ? rcu_read_unlock_special+0x84/0x480 [ 168.973987][ T1324] ? __rcu_read_unlock+0xd0/0xd0 [ 168.979025][ T1324] ? rcu_lock_acquire+0x30/0x30 [ 168.984226][ T1324] ? __lock_acquire+0x7c60/0x7c60 [ 168.989273][ T1324] ? __rcu_read_unlock+0x78/0xd0 [ 168.994567][ T1324] ? __unlock_page_memcg+0xea/0x100 [ 168.999951][ T1324] ? unmap_page_range+0xfbc/0x2520 [ 169.005199][ T1324] ? uprobe_munmap+0x165/0x3f0 [ 169.010153][ T1324] ? unmap_vmas+0x11b/0x230 [ 169.014989][ T1324] ? uprobe_clear_state+0x4f/0x460 [ 169.020186][ T1324] ? unmap_page_range+0x2520/0x2520 [ 169.025532][ T1324] ? __mutex_lock_common+0x431/0x2390 [ 169.031079][ T1324] ? memset+0x1e/0x40 [ 169.035278][ T1324] ? exit_mmap+0x38f/0x5f0 [ 169.039721][ T1324] ? vm_brk+0x20/0x20 [ 169.043767][ T1324] ? uprobe_clear_state+0x2f6/0x460 [ 169.048993][ T1324] ? mm_update_next_owner+0x522/0x640 [ 169.054655][ T1324] ? __mmput+0x115/0x3b0 [ 169.059080][ T1324] ? exit_mm+0x567/0x6c0 [ 169.063367][ T1324] ? xacct_add_tsk+0x4b0/0x4b0 [ 169.068433][ T1324] ? do_exit+0x20a0/0x20a0 [ 169.072854][ T1324] ? __ia32_sys_timer_delete+0x40/0x40 [ 169.078659][ T1324] ? hrtimer_try_to_cancel+0x3c9/0x410 [ 169.084156][ T1324] ? taskstats_exit+0x439/0xab0 [ 169.089030][ T1324] ? tty_audit_exit+0x14e/0x1f0 [ 169.094290][ T1324] ? do_exit+0x5a1/0x20a0 [ 169.099143][ T1324] ? put_task_struct+0x80/0x80 [ 169.104565][ T1324] ? rcu_nmi_exit+0x6f/0xf0 [ 169.109109][ T1324] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 169.115476][ T1324] ? lock_chain_count+0x20/0x20 [ 169.120764][ T1324] ? do_group_exit+0x12e/0x300 [ 169.125839][ T1324] ? __x64_sys_exit_group+0x3b/0x40 [ 169.131060][ T1324] ? do_syscall_64+0x4c/0xa0 [ 169.135834][ T1324] ? clear_bhb_loop+0x30/0x80 [ 169.141681][ T1324] ? clear_bhb_loop+0x30/0x80 [ 169.147371][ T1324] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 169.154197][ T1324]