Warning: Permanently added '10.128.0.118' (ED25519) to the list of known hosts. executing program executing program executing program [ 293.175866][ T28] audit: type=1400 audit(1730971135.241:66): avc: denied { execmem } for pid=560 comm="syz-executor127" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 393.212501][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 393.219302][ C0] (detected by 0, t=10002 jiffies, g=2681, q=203 ncpus=2) [ 393.226312][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294976536-4294966533), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 393.239511][ C0] rcu: rcu_preempt kthread starved for 10004 jiffies! g2681 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 393.250440][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 393.260249][ C0] rcu: RCU grace-period kthread stack dump: [ 393.265986][ C0] task:rcu_preempt state:R running task stack:28008 pid:14 ppid:2 flags:0x00004000 [ 393.276582][ C0] Call Trace: [ 393.279690][ C0] [ 393.282483][ C0] __schedule+0xcb5/0x1560 [ 393.286726][ C0] ? __sched_text_start+0x8/0x8 [ 393.291411][ C0] schedule+0xc3/0x180 [ 393.295313][ C0] schedule_timeout+0x18c/0x380 [ 393.299998][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 393.305050][ C0] ? console_conditional_schedule+0x10/0x10 [ 393.310764][ C0] ? update_process_times+0x1b0/0x1b0 [ 393.315968][ C0] ? prepare_to_swait_event+0x308/0x320 [ 393.321355][ C0] rcu_gp_fqs_loop+0x2ed/0x10a0 [ 393.326036][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 393.331069][ C0] ? rcu_gp_init+0xc7f/0xfa0 [ 393.335497][ C0] ? rcu_gp_init+0xfa0/0xfa0 [ 393.339924][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 393.345564][ C0] ? finish_swait+0x17d/0x1b0 [ 393.350105][ C0] rcu_gp_kthread+0xa3/0x3a0 [ 393.354504][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 393.359975][ C0] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 393.365007][ C0] ? __kasan_check_read+0x11/0x20 [ 393.369865][ C0] ? __kthread_parkme+0x12d/0x180 [ 393.374732][ C0] kthread+0x26d/0x300 [ 393.378634][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 393.384202][ C0] ? kthread_blkcg+0xd0/0xd0 [ 393.388613][ C0] ret_from_fork+0x1f/0x30 [ 393.392870][ C0] [ 393.395729][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 393.401901][ C0] Sending NMI from CPU 0 to CPUs 1: [ 393.406937][ C1] NMI backtrace for cpu 1 [ 393.406953][ C1] CPU: 1 PID: 573 Comm: syz-executor127 Not tainted 6.1.112-syzkaller-00110-g976b055754d7 #0 [ 393.406972][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 393.406982][ C1] RIP: 0010:preempt_count_sub+0x34/0x160 [ 393.407013][ C1] Code: c7 c0 60 50 b7 87 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30 84 c0 0f 85 c1 00 00 00 83 3d 1e b8 67 06 00 75 22 <65> 8b 05 7d d5 b2 7e 89 c1 81 e1 ff ff ff 7f 39 d9 7c 24 81 fb fe [ 393.407027][ C1] RSP: 0018:ffffc900001b0e20 EFLAGS: 00000046 [ 393.407042][ C1] RAX: 0000000000000004 RBX: 0000000000000001 RCX: ffffffff87b75003 [ 393.407054][ C1] RDX: 0000000000000001 RSI: 0000000000000046 RDI: 0000000000000001 [ 393.407064][ C1] RBP: ffffc900001b0e30 R08: dffffc0000000000 R09: 0000000000000003 [ 393.407076][ C1] R10: ffffffffffffffff R11: dffffc0000000001 R12: 0000000000000000 [ 393.407088][ C1] R13: ffff8881003b6540 R14: dffffc0000000000 R15: ffff8881003b7390 [ 393.407101][ C1] FS: 00007f5489db76c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 393.407117][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 393.407129][ C1] CR2: 00007f5489db6f80 CR3: 0000000123938000 CR4: 00000000003506a0 [ 393.407144][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 393.407154][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 393.407166][ C1] Call Trace: [ 393.407171][ C1] [ 393.407176][ C1] ? show_regs+0x58/0x60 [ 393.407194][ C1] ? nmi_cpu_backtrace+0x285/0x2f0 [ 393.407218][ C1] ? nmi_trigger_cpumask_backtrace+0x3b0/0x3b0 [ 393.407243][ C1] ? preempt_count_sub+0x34/0x160 [ 393.407262][ C1] ? preempt_count_sub+0x34/0x160 [ 393.407282][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 393.407303][ C1] ? nmi_handle+0xa7/0x280 [ 393.407321][ C1] ? preempt_count_sub+0x34/0x160 [ 393.407341][ C1] ? default_do_nmi+0x69/0x160 [ 393.407362][ C1] ? exc_nmi+0xad/0x100 [ 393.407380][ C1] ? end_repeat_nmi+0x16/0x31 [ 393.407410][ C1] ? preempt_count_sub+0x34/0x160 [ 393.407430][ C1] ? preempt_count_sub+0x34/0x160 [ 393.407450][ C1] ? preempt_count_sub+0x34/0x160 [ 393.407469][ C1] [ 393.407474][ C1] [ 393.407479][ C1] try_to_wake_up+0x670/0x1220 [ 393.407502][ C1] ? __sched_clock_gtod_offset+0x100/0x100 [ 393.407521][ C1] ? __sched_clock_gtod_offset+0x100/0x100 [ 393.407540][ C1] ? cpu_curr_snapshot+0x200/0x200 [ 393.407562][ C1] ? sched_clock_cpu+0x71/0x2b0 [ 393.407581][ C1] ? irqtime_account_irq+0x79/0x260 [ 393.407606][ C1] wake_up_process+0x10/0x20 [ 393.407626][ C1] handle_softirqs+0x530/0x650 [ 393.407648][ C1] __do_softirq+0xb/0xd [ 393.407670][ C1] do_softirq+0xf6/0x150 [ 393.407689][ C1] [ 393.407693][ C1] [ 393.407698][ C1] ? __local_bh_enable_ip+0x80/0x80 [ 393.407721][ C1] __local_bh_enable_ip+0x75/0x80 [ 393.407740][ C1] fpu__restore_sig+0x905/0x10f0 [ 393.407759][ C1] ? fpu__restore_sig+0x3ed/0x10f0 [ 393.407781][ C1] ? copy_fpstate_to_sigframe+0xba0/0xba0 [ 393.407804][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 393.407828][ C1] ? __kasan_check_write+0x14/0x20 [ 393.407845][ C1] restore_sigcontext+0x633/0x700 [ 393.407868][ C1] ? fpu__clear_user_states+0x171/0x200 [ 393.407889][ C1] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 393.407915][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 393.407938][ C1] ? sched_clock_cpu+0x71/0x2b0 [ 393.407958][ C1] __do_sys_rt_sigreturn+0x153/0x1e0 [ 393.407993][ C1] ? x32_copy_siginfo_to_user+0x270/0x270 [ 393.408016][ C1] ? debug_smp_processor_id+0x17/0x20 [ 393.408037][ C1] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 393.408057][ C1] ? exit_to_user_mode_prepare+0x39/0xa0 [ 393.408078][ C1] x64_sys_call+0x91/0x9a0 [ 393.408096][ C1] do_syscall_64+0x3b/0xb0 [ 393.408112][ C1] ? clear_bhb_loop+0x55/0xb0 [ 393.408133][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 393.408152][ C1] RIP: 0033:0x7f5489df6e97 [ 393.408173][ C1] Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 [ 393.408185][ C1] RSP: 002b:00007f5489db7178 EFLAGS: 00000246 [ 393.408199][ C1] RAX: 00000000000000ca RBX: 00007f5489e81308 RCX: 00007f5489df6e99 [ 393.408210][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5489e81308 [ 393.408221][ C1] RBP: 00007f5489e81300 R08: 00007f5489db76c0 R09: 00007f5489db76c0 [ 393.408232][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5489e8130c [ 393.408243][ C1] R13: 0000000000000000 R14: 00007ffc8afc93c0 R15: 00007ffc8afc94a8 [ 393.408258][ C1] [ 572.182427][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 278s! [ 572.191165][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 278s! [ 572.199856][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 278s! [ 572.208118][ C0] Showing busy workqueues and worker pools: [ 572.213838][ C0] workqueue events: flags=0x0 [ 572.218436][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 572.218485][ C0] pending: vmstat_shepherd, psi_avgs_work [ 572.218543][ C0] workqueue events_unbound: flags=0x2 [ 572.237028][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 572.237067][ C0] pending: flush_memcg_stats_dwork, toggle_allocation_gate [ 572.237115][ C0] workqueue events_power_efficient: flags=0x80 [ 572.257430][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=5/256 refcnt=6 [ 572.257474][ C0] pending: neigh_periodic_work, neigh_managed_work, neigh_managed_work, neigh_periodic_work, gc_worker [ 572.257558][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.257596][ C0] pending: check_lifetime [ 572.257644][ C0] workqueue mm_percpu_wq: flags=0x8 [ 572.293293][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.293334][ C0] pending: vmstat_update [ 572.293366][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.293402][ C0] pending: vmstat_update [ 572.293433][ C0] workqueue writeback: flags=0x4a [ 572.322037][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 572.322102][ C0] pending: wb_workfn [ 572.322266][ C0] workqueue dm_bufio_cache: flags=0x8 [ 572.338555][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.338599][ C0] pending: work_fn [ 572.338663][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 572.355407][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 572.355453][ C0] pending: addrconf_verify_work