Warning: Permanently added '10.128.1.15' (ED25519) to the list of known hosts. executing program executing program [ 278.254811][ T28] audit: type=1400 audit(1732276319.185:66): avc: denied { execmem } for pid=547 comm="syz-executor289" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 378.286971][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 378.293803][ C0] (detected by 0, t=10002 jiffies, g=2769, q=172 ncpus=2) [ 378.300824][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294975048-4294965045), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 378.314017][ C0] rcu: rcu_preempt kthread starved for 10004 jiffies! g2769 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 378.324947][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 378.334759][ C0] rcu: RCU grace-period kthread stack dump: [ 378.340503][ C0] task:rcu_preempt state:R running task stack:27688 pid:14 ppid:2 flags:0x00004000 [ 378.351205][ C0] Call Trace: [ 378.354289][ C0] [ 378.357065][ C0] __schedule+0xcb5/0x1560 [ 378.361319][ C0] ? __sched_text_start+0x8/0x8 [ 378.366005][ C0] ? __kasan_check_write+0x14/0x20 [ 378.370949][ C0] schedule+0xc3/0x180 [ 378.374855][ C0] schedule_timeout+0x18c/0x380 [ 378.379540][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 378.384576][ C0] ? console_conditional_schedule+0x10/0x10 [ 378.390309][ C0] ? update_process_times+0x1b0/0x1b0 [ 378.395516][ C0] ? prepare_to_swait_event+0x308/0x320 [ 378.400895][ C0] rcu_gp_fqs_loop+0x2ed/0x10a0 [ 378.405591][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 378.410612][ C0] ? rcu_gp_init+0xc7f/0xfa0 [ 378.415041][ C0] ? rcu_gp_init+0xfa0/0xfa0 [ 378.419472][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 378.425118][ C0] ? finish_swait+0x17d/0x1b0 [ 378.429620][ C0] rcu_gp_kthread+0xa3/0x3a0 [ 378.434047][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 378.439515][ C0] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 378.444548][ C0] ? __kasan_check_read+0x11/0x20 [ 378.449408][ C0] ? __kthread_parkme+0x12d/0x180 [ 378.454281][ C0] kthread+0x26d/0x300 [ 378.458176][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 378.463642][ C0] ? kthread_blkcg+0xd0/0xd0 [ 378.468070][ C0] ret_from_fork+0x1f/0x30 [ 378.472325][ C0] [ 378.475205][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 378.481363][ C0] CPU: 0 PID: 560 Comm: syz-executor289 Not tainted 6.1.112-syzkaller-00028-g1ca5db7e29a7 #0 [ 378.491328][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 378.501232][ C0] RIP: 0033:0x7f744c330b30 [ 378.505485][ C0] Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d fa 2a 03 00 e8 35 12 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 [ 378.524918][ C0] RSP: 002b:00007f744c2cabb8 EFLAGS: 00000246 [ 378.530824][ C0] RAX: 0000000000000000 RBX: 00007f744c395308 RCX: 00007f744c30ae99 [ 378.538628][ C0] RDX: 00007f744c2cabc0 RSI: 00007f744c2cacf0 RDI: 0000000000000021 [ 378.546444][ C0] RBP: 00007f744c395300 R08: 00007f744c2cb6c0 R09: 00007f744c2cb6c0 [ 378.554263][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f744c39530c [ 378.562062][ C0] R13: 0000000000000000 R14: 00007ffe6a5c3bb0 R15: 00007ffe6a5c3c98 [ 378.569876][ C0] FS: 00007f744c2cb6c0 GS: 0000000000000000 [ 428.776951][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 149s! [ 428.785698][ C0] Showing busy workqueues and worker pools: [ 428.791444][ C0] workqueue events: flags=0x0 [ 428.795936][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.795984][ C0] pending: psi_avgs_work [ 428.796021][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.796062][ C0] pending: vmstat_shepherd [ 428.796098][ C0] workqueue events_unbound: flags=0x2 [ 428.825232][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 428.825275][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 428.825324][ C0] workqueue events_power_efficient: flags=0x80 [ 428.845626][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 428.845671][ C0] pending: neigh_managed_work, neigh_periodic_work, gc_worker [ 428.845734][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 428.845774][ C0] pending: neigh_managed_work, neigh_periodic_work, check_lifetime [ 428.845835][ C0] workqueue mm_percpu_wq: flags=0x8 [ 428.881578][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.881625][ C0] pending: vmstat_update [ 428.881661][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.881700][ C0] pending: vmstat_update [ 428.881736][ C0] workqueue writeback: flags=0x4a [ 428.910362][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 428.910403][ C0] pending: wb_workfn [ 428.910446][ C0] workqueue dm_bufio_cache: flags=0x8 [ 428.926669][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.926715][ C0] pending: work_fn [ 428.926819][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 428.943717][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 428.943763][ C0] pending: addrconf_verify_work