Warning: Permanently added '10.128.0.242' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 433.994478][ T28] audit: type=1400 audit(1693112927.592:66): avc: denied { execmem } for pid=699 comm="syz-executor127" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 534.030785][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 534.037613][ C0] (detected by 0, t=10002 jiffies, g=3777, q=171 ncpus=2) [ 534.044639][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294990622-4294980619), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 534.057833][ C0] rcu: rcu_preempt kthread starved for 10004 jiffies! g3777 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 534.068779][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 534.078573][ C0] rcu: RCU grace-period kthread stack dump: [ 534.084303][ C0] task:rcu_preempt state:R running task stack:27864 pid:14 ppid:2 flags:0x00004000 [ 534.094891][ C0] Call Trace: [ 534.098014][ C0] [ 534.100794][ C0] __schedule+0xc99/0x1540 [ 534.105044][ C0] ? xfd_validate_state+0x6f/0x170 [ 534.109996][ C0] ? __sched_text_start+0x8/0x8 [ 534.114682][ C0] schedule+0xc3/0x180 [ 534.118583][ C0] schedule_timeout+0x18c/0x380 [ 534.123272][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 534.128307][ C0] ? console_conditional_schedule+0x10/0x10 [ 534.134032][ C0] ? update_process_times+0x1b0/0x1b0 [ 534.139242][ C0] ? prepare_to_swait_event+0x308/0x320 [ 534.144622][ C0] rcu_gp_fqs_loop+0x2dd/0xf40 [ 534.149336][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 534.154359][ C0] ? rcu_gp_init+0xc75/0xf70 [ 534.158787][ C0] ? rcu_gp_init+0xf70/0xf70 [ 534.163211][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 534.168850][ C0] ? finish_swait+0x17d/0x1b0 [ 534.173366][ C0] rcu_gp_kthread+0xa3/0x390 [ 534.177794][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 534.183258][ C0] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 534.188294][ C0] ? __kasan_check_read+0x11/0x20 [ 534.193153][ C0] ? __kthread_parkme+0x12d/0x180 [ 534.198014][ C0] kthread+0x26d/0x300 [ 534.201919][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 534.207385][ C0] ? kthread_blkcg+0xd0/0xd0 [ 534.211816][ C0] ret_from_fork+0x1f/0x30 [ 534.216070][ C0] [ 534.218926][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 534.225091][ C0] Sending NMI from CPU 0 to CPUs 1: [ 534.230139][ C1] NMI backtrace for cpu 1 [ 534.230149][ C1] CPU: 1 PID: 709 Comm: syz-executor127 Not tainted 6.1.25-syzkaller-00069-g5ef132d5643b #0 [ 534.230167][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 534.230177][ C1] RIP: 0010:recalc_sigpending+0x169/0x1c0 [ 534.230208][ C1] Code: 00 00 31 ff e8 48 61 2d 00 81 e3 80 00 00 00 75 1b 66 90 e8 19 5e 2d 00 4c 89 f7 be 08 00 00 00 e8 0c af 73 00 f0 41 80 26 fb 17 e8 00 5e 2d 00 4c 89 f7 be 08 00 00 00 e8 f3 ae 73 00 f0 41 [ 534.230231][ C1] RSP: 0018:ffffc90001877a28 EFLAGS: 00000046 [ 534.230244][ C1] RAX: ffffffff81479501 RBX: 0000000000000000 RCX: ffffffff81479514 [ 534.230255][ C1] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88810eb59440 [ 534.230264][ C1] RBP: ffffc90001877a50 R08: dffffc0000000000 R09: ffffed1021d6b289 [ 534.230275][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 534.230285][ C1] R13: 0000000000000000 R14: ffff88810eb59440 R15: ffff88812111ad50 [ 534.230295][ C1] FS: 00007f810a24d6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 534.230308][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 534.230318][ C1] CR2: 00007f810a24ce40 CR3: 000000010d0f9000 CR4: 00000000003506a0 [ 534.230331][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 534.230353][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 534.230362][ C1] Call Trace: [ 534.230366][ C1] [ 534.230372][ C1] __set_current_blocked+0x27f/0x2f0 [ 534.230388][ C1] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 534.230405][ C1] ? set_current_blocked+0x40/0x40 [ 534.230422][ C1] signal_setup_done+0x397/0x5f0 [ 534.230438][ C1] ? ptrace_signal+0x4c0/0x4c0 [ 534.230451][ C1] ? get_sigframe+0x378/0x4b0 [ 534.230474][ C1] ? local_bh_enable+0x1f/0x30 [ 534.230489][ C1] ? fpu__clear_user_states+0x159/0x1e0 [ 534.230506][ C1] arch_do_signal_or_restart+0x13a6/0x16f0 [ 534.230530][ C1] ? get_sigframe_size+0x10/0x10 [ 534.230549][ C1] ? restore_altstack+0x107/0x150 [ 534.230566][ C1] ? __ia32_sys_sigaltstack+0x260/0x260 [ 534.230587][ C1] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 534.230608][ C1] exit_to_user_mode_loop+0x6b/0xa0 [ 534.230623][ C1] exit_to_user_mode_prepare+0x5a/0xa0 [ 534.230638][ C1] syscall_exit_to_user_mode+0x26/0x130 [ 534.230652][ C1] do_syscall_64+0x49/0xb0 [ 534.230672][ C1] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 534.230687][ C1] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 534.230706][ C1] RIP: 0033:0x7f810a2b2350 [ 534.230717][ C1] Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d da 20 03 00 e8 15 11 fb ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48 [ 534.230728][ C1] RSP: 002b:00007f810a24cc78 EFLAGS: 00000246 [ 534.230739][ C1] RAX: 0000000000000000 RBX: 00007f810a316308 RCX: 00007f810a28c419 [ 534.230748][ C1] RDX: 00007f810a24cc80 RSI: 00007f810a24cdb0 RDI: 0000000000000021 [ 534.230758][ C1] RBP: 00007f810a316300 R08: 00007f810a24d6c0 R09: 00007f810a24d6c0 [ 534.230768][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f810a31630c [ 534.230793][ C1] R13: 0000000000000000 R14: 00007ffc74e2c2e0 R15: 00007ffc74e2c3c8 [ 534.230806][ C1] [ 715.510720][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 280s! [ 715.519624][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 280s! [ 715.528316][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 275s! [ 715.537160][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 281s! [ 715.545408][ C0] Showing busy workqueues and worker pools: [ 715.551136][ C0] workqueue events: flags=0x0 [ 715.555769][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 715.555810][ C0] pending: vmstat_shepherd, psi_avgs_work [ 715.555860][ C0] workqueue events_unbound: flags=0x2 [ 715.575038][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 715.575072][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 715.575142][ C0] workqueue events_power_efficient: flags=0x80 [ 715.595433][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 715.595470][ C0] pending: neigh_managed_work, neigh_periodic_work, check_lifetime [ 715.595520][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 715.595553][ C0] pending: neigh_managed_work, neigh_periodic_work, gc_worker [ 715.595610][ C0] workqueue mm_percpu_wq: flags=0x8 [ 715.631255][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.631293][ C0] pending: vmstat_update [ 715.631318][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.631350][ C0] pending: vmstat_update [ 715.631374][ C0] workqueue writeback: flags=0x4a [ 715.659890][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 715.659929][ C0] pending: wb_workfn [ 715.659962][ C0] workqueue kblockd: flags=0x18 [ 715.675683][ C0] pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 715.675722][ C0] pending: blk_mq_timeout_work [ 715.675758][ C0] workqueue dm_bufio_cache: flags=0x8 [ 715.693486][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.693529][ C0] pending: work_fn [ 715.693554][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 715.710315][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 715.710366][ C0] pending: addrconf_verify_work