[ 8.442398][ T30] audit: type=1400 audit(1709056272.699:28): avc: denied { write open } for pid=120 comm="dbus-daemon" path="/run/messagebus.pid" dev="tmpfs" ino=287 scontext=system_u:system_r:system_dbusd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 8.451814][ T30] audit: type=1400 audit(1709056272.699:29): avc: denied { getattr } for pid=120 comm="dbus-daemon" path="/run/messagebus.pid" dev="tmpfs" ino=287 scontext=system_u:system_r:system_dbusd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 8.763180][ T30] audit: type=1400 audit(1709056273.049:30): avc: denied { search } for pid=134 comm="dhcpcd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 11.174935][ T109] udevd (109) used greatest stack depth: 20848 bytes left [ 18.057930][ T30] kauditd_printk_skb: 30 callbacks suppressed [ 18.057963][ T30] audit: type=1400 audit(1709056282.339:61): avc: denied { transition } for pid=224 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 18.070873][ T30] audit: type=1400 audit(1709056282.349:62): avc: denied { noatsecure } for pid=224 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 18.077499][ T30] audit: type=1400 audit(1709056282.349:63): avc: denied { write } for pid=224 comm="sh" path="pipe:[12370]" dev="pipefs" ino=12370 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 18.099618][ T30] audit: type=1400 audit(1709056282.349:64): avc: denied { rlimitinh } for pid=224 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 18.119037][ T30] audit: type=1400 audit(1709056282.349:65): avc: denied { siginh } for pid=224 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.93' (ED25519) to the list of known hosts. executing program [ 496.810654][ T30] audit: type=1400 audit(1709056761.099:66): avc: denied { execmem } for pid=755 comm="syz-executor288" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 596.857364][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 596.864188][ C0] (detected by 0, t=10002 jiffies, g=5429, q=8) [ 596.870432][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294996896-4294986893), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 596.883632][ C0] rcu: rcu_preempt kthread starved for 10004 jiffies! g5429 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 596.894831][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 596.905324][ C0] rcu: RCU grace-period kthread stack dump: [ 596.911318][ C0] task:rcu_preempt state:R running task stack:28328 pid: 14 ppid: 2 flags:0x00004000 [ 596.922808][ C0] Call Trace: [ 596.926178][ C0] [ 596.928963][ C0] __schedule+0xccc/0x1590 [ 596.934030][ C0] ? __sched_text_start+0x8/0x8 [ 596.939239][ C0] ? __kasan_check_write+0x14/0x20 [ 596.944928][ C0] schedule+0x11f/0x1e0 [ 596.949094][ C0] schedule_timeout+0x18c/0x370 [ 596.954122][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 596.959239][ C0] ? console_conditional_schedule+0x30/0x30 [ 596.965678][ C0] ? update_process_times+0x200/0x200 [ 596.971058][ C0] ? prepare_to_swait_event+0x308/0x320 [ 596.976620][ C0] rcu_gp_fqs_loop+0x2af/0xf80 [ 596.981512][ C0] ? debug_smp_processor_id+0x17/0x20 [ 596.986825][ C0] ? __note_gp_changes+0x4ab/0x920 [ 596.991773][ C0] ? rcu_gp_init+0xc30/0xc30 [ 596.996282][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 597.001864][ C0] ? rcu_gp_init+0x9cf/0xc30 [ 597.006570][ C0] rcu_gp_kthread+0xa4/0x350 [ 597.011051][ C0] ? _raw_spin_lock+0x1b0/0x1b0 [ 597.016831][ C0] ? rcu_barrier_callback+0x50/0x50 [ 597.022215][ C0] ? __kasan_check_read+0x11/0x20 [ 597.028089][ C0] ? __kthread_parkme+0xb2/0x200 [ 597.033391][ C0] kthread+0x421/0x510 [ 597.037485][ C0] ? rcu_barrier_callback+0x50/0x50 [ 597.042528][ C0] ? kthread_blkcg+0xd0/0xd0 [ 597.047215][ C0] ret_from_fork+0x1f/0x30 [ 597.051752][ C0] [ 597.054699][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 597.061376][ C0] NMI backtrace for cpu 0 [ 597.065917][ C0] CPU: 0 PID: 768 Comm: syz-executor288 Not tainted 5.15.148-syzkaller-00718-g993bed180178 #0 [ 597.076948][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 597.087197][ C0] Call Trace: [ 597.090400][ C0] [ 597.093085][ C0] dump_stack_lvl+0x151/0x1b7 [ 597.097601][ C0] ? io_uring_drop_tctx_refs+0x190/0x190 [ 597.103067][ C0] dump_stack+0x15/0x17 [ 597.107056][ C0] nmi_cpu_backtrace+0x2f7/0x300 [ 597.111986][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 597.117964][ C0] ? panic+0x751/0x751 [ 597.122061][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 597.128831][ C0] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 597.134764][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 597.141538][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 597.147645][ C0] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 597.153701][ C0] print_other_cpu_stall+0x112d/0x1340 [ 597.158986][ C0] ? try_invoke_on_locked_down_task+0x2a0/0x2a0 [ 597.165260][ C0] ? print_cpu_stall+0x5f0/0x5f0 [ 597.170543][ C0] ? __kasan_check_write+0x14/0x20 [ 597.175496][ C0] rcu_sched_clock_irq+0xaec/0x12f0 [ 597.180617][ C0] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 597.186702][ C0] ? hrtimer_run_queues+0x15f/0x440 [ 597.192098][ C0] update_process_times+0x198/0x200 [ 597.197554][ C0] tick_sched_timer+0x188/0x240 [ 597.202543][ C0] ? tick_setup_sched_timer+0x480/0x480 [ 597.207927][ C0] __hrtimer_run_queues+0x41a/0xad0 [ 597.213842][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 597.218773][ C0] ? clockevents_program_event+0x22f/0x300 [ 597.224458][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 597.230413][ C0] hrtimer_interrupt+0x40c/0xaa0 [ 597.235198][ C0] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 597.241004][ C0] sysvec_apic_timer_interrupt+0x95/0xc0 [ 597.246642][ C0] [ 597.249433][ C0] [ 597.252192][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 597.258511][ C0] RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 [ 597.264150][ C0] Code: 08 00 74 0c 48 c7 c7 d8 54 8d 86 e8 e1 75 e9 fc 48 83 3d 91 98 c4 01 00 74 2a 48 89 df e8 13 28 8c fc 66 90 fb bf 01 00 00 00 d2 6b 83 fc 65 8b 05 23 b1 39 7b 85 c0 74 03 5b 5d c3 e8 23 c5 [ 597.284285][ C0] RSP: 0018:ffffc90000a37bb8 EFLAGS: 00000246 [ 597.292180][ C0] RAX: 0000000000000001 RBX: ffff8881185ce040 RCX: dffffc0000000000 [ 597.300096][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 597.308671][ C0] RBP: ffffc90000a37bc0 R08: ffffffff81456d3a R09: fffff52000146fc0 [ 597.316590][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881185ce040 [ 597.324589][ C0] R13: ffff8881185ce460 R14: 0000000000000021 R15: dffffc0000000000 [ 597.332779][ C0] ? get_signal+0x151a/0x1630 [ 597.337878][ C0] ? _raw_spin_unlock_irq+0x41/0x70 [ 597.342891][ C0] get_signal+0x1562/0x1630 [ 597.347243][ C0] arch_do_signal_or_restart+0xbd/0x1680 [ 597.352829][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 597.359074][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 597.364025][ C0] ? __kasan_check_write+0x14/0x20 [ 597.369140][ C0] ? _copy_from_user+0x96/0xd0 [ 597.373875][ C0] ? restore_altstack+0x274/0x400 [ 597.378735][ C0] ? get_sigframe_size+0x10/0x10 [ 597.383506][ C0] ? __ia32_sys_sigaltstack+0x70/0x70 [ 597.389510][ C0] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 597.394793][ C0] exit_to_user_mode_loop+0xa0/0xe0 [ 597.399912][ C0] exit_to_user_mode_prepare+0x5a/0xa0 [ 597.405211][ C0] syscall_exit_to_user_mode+0x26/0x160 [ 597.410590][ C0] do_syscall_64+0x49/0xb0 [ 597.414843][ C0] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 597.420586][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 597.426499][ C0] RIP: 0033:0x7f08aec4d417 [ 597.430745][ 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 [ 597.450631][ C0] RSP: 002b:00007f08aec0e238 EFLAGS: 00000246 [ 597.456524][ C0] RAX: 00000000000000ca RBX: 00007f08aecd7308 RCX: 00007f08aec4d419 [ 597.464422][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f08aecd7308 [ 597.472952][ C0] RBP: 00007f08aecd7300 R08: 00007f08aec0e6c0 R09: 00007f08aec0e6c0 [ 597.481701][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f08aecd730c [ 597.489646][ C0] R13: 0000000000000000 R14: 00007ffdf751a140 R15: 00007ffdf751a228 [ 597.497451][ C0] [ 715.587326][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 218s! [ 715.596145][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 212s! [ 715.605029][ C0] Showing busy workqueues and worker pools: [ 715.610845][ C0] workqueue events: flags=0x0 [ 715.615332][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.615441][ C0] pending: psi_avgs_work [ 715.615491][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.615580][ C0] pending: vmstat_shepherd [ 715.615745][ C0] workqueue events_unbound: flags=0x2 [ 715.644924][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 715.645017][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 715.645188][ C0] workqueue events_power_efficient: flags=0x80 [ 715.665600][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 715.665702][ C0] pending: neigh_periodic_work, check_lifetime [ 715.665909][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 715.666004][ C0] pending: gc_worker, neigh_periodic_work [ 715.666165][ C0] workqueue writeback: flags=0x4a [ 715.698429][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 715.698522][ C0] pending: wb_workfn [ 715.698666][ C0] workqueue kblockd: flags=0x18 [ 715.714476][ C0] pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 715.714583][ C0] pending: blk_mq_timeout_work [ 715.714777][ C0] workqueue dm_bufio_cache: flags=0x8 [ 715.732896][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.733006][ C0] pending: work_fn [ 715.733142][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 715.750022][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 715.750123][ C0] pending: addrconf_verify_work