Warning: Permanently added '10.128.1.85' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 558.224923][ T28] audit: type=1400 audit(1708714765.888:66): avc: denied { execmem } for pid=824 comm="syz-executor304" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 658.259087][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 658.265871][ C1] (detected by 1, t=10002 jiffies, g=4713, q=39 ncpus=2) [ 658.272808][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10002 (4295003033-4294993031), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 658.286006][ C1] rcu: rcu_preempt kthread starved for 10002 jiffies! g4713 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 658.297114][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 658.306920][ C1] rcu: RCU grace-period kthread stack dump: [ 658.312653][ C1] task:rcu_preempt state:R running task stack:28040 pid:14 ppid:2 flags:0x00004000 [ 658.323239][ C1] Call Trace: [ 658.326364][ C1] [ 658.329147][ C1] __schedule+0xc99/0x1540 [ 658.333413][ C1] ? __sched_text_start+0x8/0x8 [ 658.338081][ C1] ? __kasan_check_write+0x14/0x20 [ 658.343029][ C1] schedule+0xc3/0x180 [ 658.346934][ C1] schedule_timeout+0x18c/0x380 [ 658.351619][ C1] ? _raw_spin_unlock_irq+0x4d/0x70 [ 658.356657][ C1] ? console_conditional_schedule+0x10/0x10 [ 658.362384][ C1] ? update_process_times+0x1b0/0x1b0 [ 658.367598][ C1] ? prepare_to_swait_event+0x308/0x320 [ 658.372973][ C1] rcu_gp_fqs_loop+0x2ed/0x1060 [ 658.377658][ C1] ? _raw_spin_unlock_irq+0x4d/0x70 [ 658.382692][ C1] ? rcu_gp_init+0xc7f/0xf80 [ 658.387121][ C1] ? rcu_gp_init+0xf80/0xf80 [ 658.391549][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 658.397189][ C1] ? finish_swait+0x17d/0x1b0 [ 658.401702][ C1] rcu_gp_kthread+0xa3/0x390 [ 658.406131][ C1] ? queued_spin_lock_slowpath+0x50/0x50 [ 658.411701][ C1] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 658.416911][ C1] ? __kasan_check_read+0x11/0x20 [ 658.421768][ C1] ? __kthread_parkme+0x12d/0x180 [ 658.426633][ C1] kthread+0x26d/0x300 [ 658.430542][ C1] ? queued_spin_lock_slowpath+0x50/0x50 [ 658.436006][ C1] ? kthread_blkcg+0xd0/0xd0 [ 658.440429][ C1] ret_from_fork+0x1f/0x30 [ 658.444687][ C1] [ 658.447551][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 658.453767][ C1] Sending NMI from CPU 1 to CPUs 0: [ 658.458754][ C0] NMI backtrace for cpu 0 [ 658.458763][ C0] CPU: 0 PID: 836 Comm: syz-executor304 Not tainted 6.1.68-syzkaller-00029-g8c0f9174731d #0 [ 658.458779][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 658.458788][ C0] RIP: 0010:__rcu_read_lock+0x1/0x80 [ 658.458811][ C0] Code: 75 bc fd ff 65 ff 0d 26 34 a1 7e 4d 89 fd 0f 85 e3 fb ff ff e8 2c 46 9f ff e9 d9 fb ff ff e8 b6 45 97 03 66 0f 1f 44 00 00 55 <48> 89 e5 41 57 41 56 41 54 53 49 be 00 00 00 00 00 fc ff df 65 4c [ 658.458822][ C0] RSP: 0018:ffffc90002057930 EFLAGS: 00000046 [ 658.458836][ C0] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88810f301440 [ 658.458847][ C0] RDX: ffff88810f301440 RSI: 0000000000000000 RDI: 0000000000000000 [ 658.458857][ C0] RBP: ffffc90002057990 R08: ffffffff81688954 R09: ffffed1021e60289 [ 658.458868][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90002057a00 [ 658.458878][ C0] R13: 1ffff9200040af3c R14: dffffc0000000000 R15: ffff88810f301c98 [ 658.458889][ C0] FS: 00007f93764da6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 658.458903][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 658.458914][ C0] CR2: 00007f93764d9e40 CR3: 000000010095d000 CR4: 00000000003506b0 [ 658.458927][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 658.458936][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 658.458945][ C0] Call Trace: [ 658.458950][ C0] [ 658.458956][ C0] ? show_regs+0x58/0x60 [ 658.458971][ C0] ? nmi_cpu_backtrace+0x285/0x2f0 [ 658.459015][ C0] ? nmi_trigger_cpumask_backtrace+0x3c0/0x3c0 [ 658.459031][ C0] ? __rcu_read_lock+0x1/0x80 [ 658.459053][ C0] ? __rcu_read_lock+0x1/0x80 [ 658.459071][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 658.459089][ C0] ? nmi_handle+0xa7/0x280 [ 658.459105][ C0] ? __rcu_read_lock+0x1/0x80 [ 658.459123][ C0] ? default_do_nmi+0x69/0x160 [ 658.459149][ C0] ? exc_nmi+0xaf/0x120 [ 658.459168][ C0] ? end_repeat_nmi+0x16/0x31 [ 658.459227][ C0] ? __lock_timer+0x24/0x260 [ 658.459243][ C0] ? __rcu_read_lock+0x1/0x80 [ 658.459261][ C0] ? __rcu_read_lock+0x1/0x80 [ 658.459278][ C0] ? __rcu_read_lock+0x1/0x80 [ 658.459296][ C0] [ 658.459301][ C0] [ 658.459305][ C0] ? __lock_timer+0x3e/0x260 [ 658.459321][ C0] posixtimer_rearm+0xbe/0x3f0 [ 658.459337][ C0] ? __dequeue_signal+0x3a5/0x650 [ 658.459352][ C0] ? alarmtimer_resume+0x60/0x60 [ 658.459369][ C0] ? __kasan_check_write+0x14/0x20 [ 658.459389][ C0] ? recalc_sigpending+0x164/0x1c0 [ 658.459404][ C0] dequeue_signal+0x245/0x590 [ 658.459418][ C0] ? unhandled_signal+0x1d0/0x1d0 [ 658.459433][ C0] ? uprobe_deny_signal+0x77/0x230 [ 658.459455][ C0] get_signal+0x54c/0x1820 [ 658.459473][ C0] ? ptrace_notify+0x350/0x350 [ 658.459487][ C0] ? __kasan_check_write+0x14/0x20 [ 658.459508][ C0] arch_do_signal_or_restart+0xb0/0x16f0 [ 658.459529][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 658.459549][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 658.459566][ C0] ? do_sigaltstack+0x3f9/0x630 [ 658.459586][ C0] ? get_sigframe_size+0x10/0x10 [ 658.459604][ C0] ? restore_altstack+0x107/0x150 [ 658.459622][ C0] ? __ia32_sys_sigaltstack+0x260/0x260 [ 658.459643][ C0] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 658.459664][ C0] exit_to_user_mode_loop+0x74/0xa0 [ 658.459681][ C0] exit_to_user_mode_prepare+0x5a/0xa0 [ 658.459698][ C0] syscall_exit_to_user_mode+0x26/0x140 [ 658.459712][ C0] do_syscall_64+0x49/0xb0 [ 658.459729][ C0] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 658.459751][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 658.459769][ C0] RIP: 0033:0x7f9376519417 [ 658.459782][ C0] 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 [ 658.459794][ C0] RSP: 002b:00007f93764da238 EFLAGS: 00000246 [ 658.459806][ C0] RAX: 00000000000000ca RBX: 00007f93765a3308 RCX: 00007f9376519419 [ 658.459816][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f93765a3308 [ 658.459825][ C0] RBP: 00007f93765a3300 R08: 00007f93764da6c0 R09: 00007f93764da6c0 [ 658.459836][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f93765a330c [ 658.459845][ C0] R13: 0000000000000000 R14: 00007ffe4555f600 R15: 00007ffe4555f6e8 [ 658.459858][ C0] [ 658.459863][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.110 msecs [ 858.969002][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 299s! [ 858.977729][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 299s! [ 858.986421][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 294s! [ 858.995273][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 300s! [ 859.003520][ C0] Showing busy workqueues and worker pools: [ 859.009247][ C0] workqueue events: flags=0x0 [ 859.013748][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 859.013787][ C0] pending: psi_avgs_work [ 859.013817][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 859.013849][ C0] pending: vmstat_shepherd [ 859.013878][ C0] workqueue events_unbound: flags=0x2 [ 859.042927][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 859.042967][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 859.043020][ C0] workqueue events_power_efficient: flags=0x80 [ 859.063319][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 859.063358][ C0] pending: neigh_managed_work, neigh_periodic_work [ 859.063465][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256 refcnt=5 [ 859.063498][ C0] pending: neigh_managed_work, neigh_periodic_work, gc_worker, check_lifetime [ 859.063625][ C0] workqueue writeback: flags=0x4a [ 859.099111][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 859.099151][ C0] pending: wb_workfn [ 859.099177][ C0] workqueue kblockd: flags=0x18 [ 859.114888][ C0] pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 859.114929][ C0] pending: blk_mq_timeout_work [ 859.114959][ C0] workqueue dm_bufio_cache: flags=0x8 [ 859.132693][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 859.132734][ C0] pending: work_fn [ 859.132764][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 859.149533][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 859.149567][ C0] pending: addrconf_verify_work