Warning: Permanently added '10.128.0.223' (ED25519) to the list of known hosts. executing program executing program executing program [ 428.704180][ T28] audit: type=1400 audit(1714231549.364:66): avc: denied { execmem } for pid=695 comm="syz-executor321" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 528.737677][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 528.744465][ C1] (detected by 1, t=10002 jiffies, g=3589, q=168 ncpus=2) [ 528.751491][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294990096-4294980093), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 528.764682][ C1] rcu: rcu_preempt kthread starved for 10004 jiffies! g3589 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 528.775700][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 528.785512][ C1] rcu: RCU grace-period kthread stack dump: [ 528.791242][ C1] task:rcu_preempt state:R running task stack:27720 pid:14 ppid:2 flags:0x00004000 [ 528.801833][ C1] Call Trace: [ 528.804950][ C1] [ 528.807730][ C1] __schedule+0xca7/0x1550 [ 528.811983][ C1] ? __sched_text_start+0x8/0x8 [ 528.816680][ C1] schedule+0xc3/0x180 [ 528.820575][ C1] schedule_timeout+0x18c/0x380 [ 528.825258][ C1] ? _raw_spin_unlock_irq+0x4d/0x70 [ 528.830293][ C1] ? console_conditional_schedule+0x10/0x10 [ 528.836021][ C1] ? update_process_times+0x1b0/0x1b0 [ 528.841229][ C1] ? prepare_to_swait_event+0x308/0x320 [ 528.846614][ C1] rcu_gp_fqs_loop+0x2ed/0x1060 [ 528.851298][ C1] ? _raw_spin_unlock_irq+0x4d/0x70 [ 528.856330][ C1] ? rcu_gp_init+0xc7f/0xf80 [ 528.860758][ C1] ? rcu_gp_init+0xf80/0xf80 [ 528.865186][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 528.870825][ C1] ? finish_swait+0x17d/0x1b0 [ 528.875340][ C1] rcu_gp_kthread+0xa3/0x390 [ 528.879765][ C1] ? queued_spin_lock_slowpath+0x50/0x50 [ 528.885230][ C1] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 528.890267][ C1] ? __kasan_check_read+0x11/0x20 [ 528.895125][ C1] ? __kthread_parkme+0x12d/0x180 [ 528.899987][ C1] kthread+0x26d/0x300 [ 528.903893][ C1] ? queued_spin_lock_slowpath+0x50/0x50 [ 528.909362][ C1] ? kthread_blkcg+0xd0/0xd0 [ 528.913788][ C1] ret_from_fork+0x1f/0x30 [ 528.918054][ C1] [ 528.920953][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 528.927079][ C1] CPU: 1 PID: 703 Comm: syz-executor321 Not tainted 6.1.75-syzkaller-00069-gfa87a072a7fc #0 [ 528.936967][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 528.946859][ C1] RIP: 0033:0x7f5ac8065350 [ 528.951110][ C1] Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d da 20 03 00 e8 05 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 [ 528.970550][ C1] RSP: 002b:00007f5ac7fffc78 EFLAGS: 00000246 [ 528.976450][ C1] RAX: 0000000000000000 RBX: 00007f5ac80c9308 RCX: 00007f5ac803f419 [ 528.984296][ C1] RDX: 00007f5ac7fffc80 RSI: 00007f5ac7fffdb0 RDI: 0000000000000021 [ 528.992090][ C1] RBP: 00007f5ac80c9300 R08: 00007f5ac80006c0 R09: 00007f5ac80006c0 [ 528.999883][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5ac80c930c [ 529.007698][ C1] R13: 0000000000000000 R14: 00007ffec16c5200 R15: 00007ffec16c52e8 [ 529.015507][ C1] FS: 00007f5ac80006c0 GS: 0000000000000000 [ 572.107674][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 143s! [ 572.116407][ C0] Showing busy workqueues and worker pools: [ 572.122142][ C0] workqueue events: flags=0x0 [ 572.126644][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.126682][ C0] pending: psi_avgs_work [ 572.126716][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.126749][ C0] pending: vmstat_shepherd [ 572.126779][ C0] workqueue events_unbound: flags=0x2 [ 572.155904][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 572.155939][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 572.155978][ C0] workqueue events_power_efficient: flags=0x80 [ 572.176297][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=4/256 refcnt=5 [ 572.176335][ C0] pending: neigh_managed_work, gc_worker, neigh_periodic_work, check_lifetime [ 572.176419][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 572.176453][ C0] pending: neigh_managed_work, neigh_periodic_work [ 572.176497][ C0] workqueue writeback: flags=0x4a [ 572.211973][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 572.212013][ C0] pending: wb_workfn [ 572.212056][ C0] workqueue kblockd: flags=0x18 [ 572.227766][ C0] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 572.227804][ C0] pending: blk_mq_timeout_work [ 572.227893][ C0] workqueue dm_bufio_cache: flags=0x8 [ 572.245649][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.245687][ C0] pending: work_fn [ 572.245709][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 572.262501][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 572.262540][ C0] pending: addrconf_verify_work