[ 10.691604][ T28] audit: type=1400 audit(1696743358.407:64): avc: denied { rlimitinh } for pid=222 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 10.694492][ T28] audit: type=1400 audit(1696743358.407:65): avc: denied { siginh } for pid=222 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 11.908275][ T226] sftp-server (226) used greatest stack depth: 22512 bytes left [ 12.274691][ T229] sshd (229) used greatest stack depth: 22192 bytes left Warning: Permanently added '10.128.1.189' (ED25519) to the list of known hosts. [ 505.435359][ T28] audit: type=1400 audit(1696743853.157:66): avc: denied { execmem } for pid=772 comm="syz-executor318" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 505.439851][ T28] audit: type=1400 audit(1696743853.157:67): avc: denied { mounton } for pid=781 comm="syz-executor318" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [ 505.443375][ T28] audit: type=1400 audit(1696743853.157:68): avc: denied { mount } for pid=780 comm="syz-executor318" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 505.446755][ T28] audit: type=1400 audit(1696743853.157:69): avc: denied { mounton } for pid=781 comm="syz-executor318" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 executing program executing program executing program executing program [ 505.492232][ T28] audit: type=1400 audit(1696743853.207:70): avc: denied { mounton } for pid=781 comm="syz-executor318" path="/dev/binderfs" dev="devtmpfs" ino=370 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 505.515228][ T28] audit: type=1400 audit(1696743853.207:71): avc: denied { mount } for pid=781 comm="syz-executor318" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 605.553798][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 605.560578][ C0] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P792/1:b..l [ 605.568209][ C0] (detected by 0, t=10003 jiffies, g=4261, q=13 ncpus=2) [ 605.575156][ C0] task:syz-executor318 state:R running task stack:28720 pid:792 ppid:782 flags:0x00004000 [ 605.585831][ C0] Call Trace: [ 605.588954][ C0] [ 605.591732][ C0] __schedule+0xc99/0x1540 [ 605.595993][ C0] ? __sched_text_start+0x8/0x8 [ 605.600673][ C0] ? unlock_page_memcg+0x146/0x160 [ 605.605618][ C0] ? page_add_file_rmap+0x22c/0x580 [ 605.610651][ C0] ? preempt_schedule+0xd9/0xe0 [ 605.615775][ C0] preempt_schedule_common+0x9b/0xf0 [ 605.620896][ C0] preempt_schedule+0xd9/0xe0 [ 605.625418][ C0] ? schedule_preempt_disabled+0x20/0x20 [ 605.630874][ C0] ? do_set_pte+0x497/0x5f0 [ 605.635215][ C0] preempt_schedule_thunk+0x16/0x18 [ 605.640249][ C0] ? xas_find+0x104/0x820 [ 605.644413][ C0] ? xas_find+0x347/0x820 [ 605.648583][ C0] _raw_spin_unlock+0x5f/0x70 [ 605.653094][ C0] filemap_map_pages+0x11ad/0x12e0 [ 605.658049][ C0] ? filemap_read_folio+0x2a0/0x2a0 [ 605.663078][ C0] ? pgd_free+0x190/0x190 [ 605.667241][ C0] do_fault+0xc67/0x1820 [ 605.671322][ C0] ? pte_marker_clear+0x2f0/0x2f0 [ 605.676186][ C0] ? mas_state_walk+0x732/0x980 [ 605.680868][ C0] handle_mm_fault+0x184a/0x2f40 [ 605.685645][ C0] ? numa_migrate_prep+0xe0/0xe0 [ 605.690426][ C0] ? lock_mm_and_find_vma+0x9c/0x310 [ 605.695539][ C0] exc_page_fault+0x243/0x6e0 [ 605.700049][ C0] asm_exc_page_fault+0x27/0x30 [ 605.704737][ C0] RIP: 0033:0x7f8984c71260 [ 605.708984][ C0] RSP: 002b:00007ffe4d1fb1e8 EFLAGS: 00010246 [ 605.714887][ C0] RAX: 0000000000000000 RBX: 00007ffe4d1fb290 RCX: 00007f8984c45a4d [ 605.722701][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 605.730508][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007f8984cd3ec0 [ 605.738320][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240 [ 605.746135][ C0] R13: 0000000000000000 R14: 00007ffe4d1fb250 R15: 00007f8984cce300 [ 605.753953][ C0] [ 605.756815][ C0] rcu: rcu_preempt kthread starved for 10022 jiffies! g4261 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 605.767748][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 605.777552][ C0] rcu: RCU grace-period kthread stack dump: [ 605.783281][ C0] task:rcu_preempt state:R running task stack:28200 pid:14 ppid:2 flags:0x00004000 [ 605.793871][ C0] Call Trace: [ 605.796993][ C0] [ 605.799773][ C0] __schedule+0xc99/0x1540 [ 605.804025][ C0] ? update_load_avg+0x513/0x1530 [ 605.808888][ C0] ? __sched_text_start+0x8/0x8 [ 605.813571][ C0] ? __kasan_check_write+0x14/0x20 [ 605.818533][ C0] schedule+0xc3/0x180 [ 605.822427][ C0] schedule_timeout+0x18c/0x380 [ 605.827114][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 605.832147][ C0] ? console_conditional_schedule+0x10/0x10 [ 605.837873][ C0] ? update_process_times+0x1b0/0x1b0 [ 605.843080][ C0] ? prepare_to_swait_event+0x308/0x320 [ 605.848462][ C0] rcu_gp_fqs_loop+0x2dd/0xf40 [ 605.853060][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 605.858099][ C0] ? rcu_gp_init+0xc75/0xf70 [ 605.862529][ C0] ? rcu_gp_init+0xf70/0xf70 [ 605.866948][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 605.872591][ C0] ? finish_swait+0x17d/0x1b0 [ 605.877103][ C0] rcu_gp_kthread+0xa3/0x390 [ 605.881533][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 605.886996][ C0] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 605.892033][ C0] ? __kasan_check_read+0x11/0x20 [ 605.896890][ C0] ? __kthread_parkme+0x12d/0x180 [ 605.901756][ C0] kthread+0x26d/0x300 [ 605.905661][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 605.911136][ C0] ? kthread_blkcg+0xd0/0xd0 [ 605.915904][ C0] ret_from_fork+0x1f/0x30 [ 605.920156][ C0] [ 605.923014][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 605.929181][ C0] CPU: 0 PID: 791 Comm: syz-executor318 Not tainted 6.1.25-syzkaller-00065-g1fe248991f96 #0 [ 605.939072][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 605.948971][ C0] RIP: 0033:0x7f8984c42e07 [ 605.953218][ C0] Code: 0b e9 68 fe ff ff 48 83 c4 18 48 8d 3d f2 05 09 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 a3 d9 fd ff 0f 1f 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 31 f6 31 ff e9 47 e4 02 00 0f 1f 80 00 [ 605.972660][ C0] RSP: 002b:00007f8984c04c48 EFLAGS: 00000206 [ 605.978562][ C0] RAX: 0000000000000002 RBX: 00007f8984c04db0 RCX: 00007f8984c42e07 [ 605.986372][ C0] RDX: 00007f8984c04c80 RSI: 00007f8984c04db0 RDI: 0000000000000021 [ 605.994186][ C0] RBP: 0000000000000000 R08: 00007f8984c056c0 R09: 00007f8984c056c0 [ 606.001994][ C0] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f8984cce30c [ 606.009811][ C0] R13: 0000000000000011 R14: 00007ffe4d1fb020 R15: 00007ffe4d1fb108 [ 606.017877][ C0] FS: 00007f8984c056c0 GS: 0000000000000000 [ 715.503819][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 208s! [ 715.512541][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 203s! [ 715.521411][ C0] Showing busy workqueues and worker pools: [ 715.527291][ C0] workqueue events: flags=0x0 [ 715.531788][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 715.531830][ C0] pending: vmstat_shepherd, psi_avgs_work [ 715.531878][ C0] workqueue events_unbound: flags=0x2 [ 715.550363][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 715.550400][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 715.550452][ C0] workqueue events_power_efficient: flags=0x80 [ 715.570769][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=5/256 refcnt=6 [ 715.570812][ C0] pending: neigh_managed_work, neigh_managed_work, neigh_periodic_work, neigh_periodic_work, gc_worker [ 715.570897][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.570930][ C0] pending: check_lifetime [ 715.570968][ C0] workqueue writeback: flags=0x4a [ 715.606442][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 715.606484][ C0] pending: wb_workfn [ 715.606515][ C0] workqueue kblockd: flags=0x18 [ 715.622231][ C0] pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 715.622272][ C0] pending: blk_mq_timeout_work [ 715.622312][ C0] workqueue dm_bufio_cache: flags=0x8 [ 715.640019][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.640068][ C0] pending: work_fn [ 715.640096][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 715.656865][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 715.656906][ C0] pending: addrconf_verify_work