Warning: Permanently added '10.128.1.155' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 560.009245][ T28] audit: type=1400 audit(1714151084.189:66): avc: denied { execmem } for pid=827 comm="syz-executor817" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 660.022453][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 660.029245][ C0] (detected by 0, t=10002 jiffies, g=4689, q=204 ncpus=2) [ 660.036266][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4295003217-4294993214), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 660.049457][ C0] rcu: rcu_preempt kthread starved for 10004 jiffies! g4689 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 660.060478][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 660.070285][ C0] rcu: RCU grace-period kthread stack dump: [ 660.076019][ C0] task:rcu_preempt state:R running task stack:28040 pid:14 ppid:2 flags:0x00004000 [ 660.086845][ C0] Call Trace: [ 660.089945][ C0] [ 660.092812][ C0] __schedule+0xca7/0x1550 [ 660.097062][ C0] ? xfd_validate_state+0x6f/0x170 [ 660.102012][ C0] ? __sched_text_start+0x8/0x8 [ 660.106692][ C0] ? __switch_to+0x62c/0x1190 [ 660.111209][ C0] ? __kasan_check_write+0x14/0x20 [ 660.116159][ C0] schedule+0xc3/0x180 [ 660.120151][ C0] schedule_timeout+0x18c/0x380 [ 660.124847][ C0] ? __pv_queued_spin_unlock_slowpath+0x310/0x310 [ 660.131086][ C0] ? console_conditional_schedule+0x10/0x10 [ 660.136811][ C0] ? update_process_times+0x1b0/0x1b0 [ 660.142020][ C0] ? prepare_to_swait_event+0x308/0x320 [ 660.147403][ C0] rcu_gp_fqs_loop+0x2ed/0x1060 [ 660.152090][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 660.157120][ C0] ? rcu_gp_init+0xc7f/0xf80 [ 660.161554][ C0] ? rcu_gp_init+0xf80/0xf80 [ 660.165979][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 660.171618][ C0] ? finish_swait+0x17d/0x1b0 [ 660.176131][ C0] rcu_gp_kthread+0xa3/0x390 [ 660.180559][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 660.186025][ C0] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 660.191059][ C0] ? __kasan_check_read+0x11/0x20 [ 660.195920][ C0] ? __kthread_parkme+0x12d/0x180 [ 660.200779][ C0] kthread+0x26d/0x300 [ 660.204694][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 660.210153][ C0] ? kthread_blkcg+0xd0/0xd0 [ 660.214578][ C0] ret_from_fork+0x1f/0x30 [ 660.218837][ C0] [ 660.221696][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 660.227885][ C0] CPU: 0 PID: 839 Comm: syz-executor817 Not tainted 6.1.75-syzkaller-00069-gfa87a072a7fc #0 [ 660.237751][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 660.247735][ C0] RIP: 0010:__sanitizer_cov_trace_cmp8+0x1/0x80 [ 660.253811][ C0] Code: 11 48 c7 44 0a 08 04 00 00 00 48 89 44 0a 10 48 89 74 0a 18 4c 89 44 0a 20 5d c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 <48> 89 e5 4c 8b 45 08 65 48 8b 0d 50 fd 8c 7e 65 8b 05 51 fd 8c 7e [ 660.273254][ C0] RSP: 0018:ffffc90001fa7d60 EFLAGS: 00000216 [ 660.279154][ C0] RAX: 0000000000000000 RBX: 00007ffffffff000 RCX: ffff88810fd99440 [ 660.287062][ C0] RDX: dffffc0000000000 RSI: 00007ff4ca905c90 RDI: 00007fffffffefe8 [ 660.294873][ C0] RBP: ffffc90001fa7d90 R08: ffffffff8275f041 R09: ffffc90001fa7dc0 [ 660.302685][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000018 [ 660.310498][ C0] R13: 1ffff920003f4fb4 R14: ffffc90001fa7dc0 R15: 00007ff4ca905c90 [ 660.318307][ C0] FS: 00007ff4ca9066c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 660.327076][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 660.333495][ C0] CR2: 00007ff4ca905e40 CR3: 0000000122580000 CR4: 00000000003506b0 [ 660.341313][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 660.349124][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 660.356931][ C0] Call Trace: [ 660.360058][ C0] [ 660.362749][ C0] ? show_regs+0x58/0x60 [ 660.366832][ C0] ? dump_cpu_task+0x3c/0x70 [ 660.371253][ C0] ? rcu_check_gp_kthread_starvation+0x1d1/0x240 [ 660.377418][ C0] ? _find_next_bit+0x126/0x130 [ 660.382106][ C0] ? print_other_cpu_stall+0x1140/0x1300 [ 660.387579][ C0] ? print_cpu_stall+0x590/0x590 [ 660.392346][ C0] ? acct_account_cputime+0xf7/0x2c0 [ 660.397465][ C0] ? rcu_sched_clock_irq+0xaeb/0x1330 [ 660.403283][ C0] ? rcu_boost_kthread_setaffinity+0x5a0/0x5a0 [ 660.409269][ C0] ? hrtimer_run_queues+0x15f/0x440 [ 660.414306][ C0] ? tick_setup_sched_timer+0x490/0x490 [ 660.419685][ C0] ? update_process_times+0x149/0x1b0 [ 660.424895][ C0] ? tick_sched_timer+0x188/0x240 [ 660.429755][ C0] ? tick_setup_sched_timer+0x490/0x490 [ 660.435135][ C0] ? __hrtimer_run_queues+0x41a/0xad0 [ 660.440345][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 660.445288][ C0] ? try_to_wake_up+0x670/0x1220 [ 660.450062][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 660.455962][ C0] ? hrtimer_interrupt+0x40c/0xaa0 [ 660.460916][ C0] ? __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 660.466812][ C0] ? sysvec_apic_timer_interrupt+0x95/0xc0 [ 660.472451][ C0] [ 660.475240][ C0] [ 660.478009][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 660.483995][ C0] ? _copy_from_user+0x41/0xc0 [ 660.488685][ C0] ? __sanitizer_cov_trace_cmp8+0x1/0x80 [ 660.494363][ C0] ? _copy_from_user+0x4f/0xc0 [ 660.498966][ C0] restore_altstack+0x95/0x150 [ 660.503657][ C0] ? __ia32_sys_sigaltstack+0x260/0x260 [ 660.509041][ C0] ? sched_clock_cpu+0x71/0x2b0 [ 660.513732][ C0] __do_sys_rt_sigreturn+0x160/0x1e0 [ 660.518853][ C0] ? x32_copy_siginfo_to_user+0x270/0x270 [ 660.524400][ C0] ? debug_smp_processor_id+0x17/0x20 [ 660.529612][ C0] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 660.535510][ C0] ? exit_to_user_mode_prepare+0x39/0xa0 [ 660.540984][ C0] do_syscall_64+0x3d/0xb0 [ 660.545243][ C0] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 660.550878][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 660.556615][ C0] RIP: 0033:0x7ff4ca94d147 [ 660.560856][ C0] Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 31 1b 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 [ 660.580395][ C0] RSP: 002b:00007ff4ca906238 EFLAGS: 00000246 [ 660.586296][ C0] RAX: 00000000000000ca RBX: 00007ff4ca9d0308 RCX: 00007ff4ca94d149 [ 660.594106][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff4ca9d0308 [ 660.601919][ C0] RBP: 00007ff4ca9d0300 R08: 00007ff4ca9066c0 R09: 00007ff4ca9066c0 [ 660.609741][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff4ca9d030c [ 660.617540][ C0] R13: 0000000000000000 R14: 00007ffec40d57e0 R15: 00007ffec40d58c8 [ 660.625356][ C0] [ 715.542449][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 155s! [ 715.551184][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 149s! [ 715.560054][ C0] Showing busy workqueues and worker pools: [ 715.565774][ C0] workqueue events: flags=0x0 [ 715.570289][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 715.570333][ C0] pending: vmstat_shepherd, psi_avgs_work [ 715.570394][ C0] workqueue events_unbound: flags=0x2 [ 715.588938][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 715.588979][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 715.589026][ C0] workqueue events_power_efficient: flags=0x80 [ 715.609337][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=5/256 refcnt=6 [ 715.609389][ C0] pending: neigh_managed_work, neigh_managed_work, neigh_periodic_work, neigh_periodic_work, check_lifetime [ 715.609512][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.609554][ C0] pending: gc_worker [ 715.609590][ C0] workqueue mm_percpu_wq: flags=0x8 [ 715.645265][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.645317][ C0] pending: vmstat_update [ 715.645356][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.645397][ C0] pending: vmstat_update [ 715.645433][ C0] workqueue writeback: flags=0x4a [ 715.674060][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 715.674110][ C0] pending: wb_workfn [ 715.674141][ C0] workqueue kblockd: flags=0x18 [ 715.689967][ C0] pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 715.690016][ C0] pending: blk_mq_timeout_work [ 715.690057][ C0] workqueue dm_bufio_cache: flags=0x8 [ 715.707757][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.707806][ C0] pending: work_fn [ 715.707833][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 715.724618][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 715.724664][ C0] pending: addrconf_verify_work