[ 564.342974][ T30] audit: type=1400 audit(1715698464.339:66): avc: denied { remove_name } for pid=82 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 564.346410][ T30] audit: type=1400 audit(1715698464.339:67): avc: denied { rename } for pid=82 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 Warning: Permanently added '10.128.1.152' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 569.131173][ T30] audit: type=1400 audit(1715698469.119:68): avc: denied { execmem } for pid=835 comm="syz-executor296" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 669.167400][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 669.174202][ C1] (detected by 1, t=10002 jiffies, g=5265, q=66) [ 669.180431][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10002 (4295004134-4294994132), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 669.193629][ C1] rcu: rcu_preempt kthread starved for 10002 jiffies! g5265 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 669.204555][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 669.214365][ C1] rcu: RCU grace-period kthread stack dump: [ 669.220104][ C1] task:rcu_preempt state:R running task stack:28248 pid: 14 ppid: 2 flags:0x00004000 [ 669.230691][ C1] Call Trace: [ 669.233806][ C1] [ 669.236585][ C1] __schedule+0xccc/0x1590 [ 669.240839][ C1] ? __sched_text_start+0x8/0x8 [ 669.245531][ C1] ? __kasan_check_write+0x14/0x20 [ 669.250469][ C1] schedule+0x11f/0x1e0 [ 669.254463][ C1] schedule_timeout+0x18c/0x370 [ 669.259148][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 669.264189][ C1] ? console_conditional_schedule+0x30/0x30 [ 669.269911][ C1] ? update_process_times+0x200/0x200 [ 669.275120][ C1] ? prepare_to_swait_event+0x308/0x320 [ 669.280499][ C1] rcu_gp_fqs_loop+0x2af/0xf80 [ 669.285106][ C1] ? debug_smp_processor_id+0x17/0x20 [ 669.290306][ C1] ? __note_gp_changes+0x4ab/0x920 [ 669.295254][ C1] ? rcu_gp_init+0xc30/0xc30 [ 669.299681][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 669.304713][ C1] ? rcu_gp_init+0x9cf/0xc30 [ 669.309141][ C1] rcu_gp_kthread+0xa4/0x350 [ 669.313571][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 669.318253][ C1] ? rcu_barrier_callback+0x50/0x50 [ 669.323288][ C1] ? __kasan_check_read+0x11/0x20 [ 669.328148][ C1] ? __kthread_parkme+0xb2/0x200 [ 669.332924][ C1] kthread+0x421/0x510 [ 669.336829][ C1] ? rcu_barrier_callback+0x50/0x50 [ 669.341867][ C1] ? kthread_blkcg+0xd0/0xd0 [ 669.346294][ C1] ret_from_fork+0x1f/0x30 [ 669.350543][ C1] [ 669.353406][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 669.359582][ C1] Sending NMI from CPU 1 to CPUs 0: [ 669.364619][ C0] NMI backtrace for cpu 0 [ 669.364634][ C0] CPU: 0 PID: 849 Comm: syz-executor296 Not tainted 5.15.149-syzkaller-00490-g5d96939590c0 #0 [ 669.364650][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 669.364662][ C0] RIP: 0010:arch_do_signal_or_restart+0x809/0x1680 [ 669.364682][ C0] Code: 00 00 48 8b 84 24 b8 00 00 00 49 89 84 24 d8 00 00 00 48 8b 44 24 10 48 8d 98 e8 0e 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 6d 57 86 00 48 8b 03 49 89 84 24 e0 00 00 00 48 [ 669.364693][ C0] RSP: 0018:ffffc90000a57ca0 EFLAGS: 00040246 [ 669.364707][ C0] RAX: 1ffff110216f11dd RBX: ffff88810b788ee8 RCX: ffff88810b788000 [ 669.364718][ C0] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffc90000a57df0 [ 669.364727][ C0] RBP: ffffc90000a57eb0 R08: ffffffff812ea113 R09: fffffbfff0c05466 [ 669.364738][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: 00007ff53d813c78 [ 669.364748][ C0] R13: dffffc0000000000 R14: ffffc90000a57ff8 R15: ffffc90000a57f58 [ 669.364759][ C0] FS: 00007ff53d8146c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 669.364777][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 669.364788][ C0] CR2: 00007ff53d813e40 CR3: 000000011eab7000 CR4: 00000000003506b0 [ 669.364801][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 669.364809][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 669.364818][ C0] Call Trace: [ 669.364823][ C0] [ 669.364828][ C0] ? show_regs+0x58/0x60 [ 669.364843][ C0] ? nmi_cpu_backtrace+0x29f/0x300 [ 669.364861][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 669.364877][ C0] ? arch_do_signal_or_restart+0x809/0x1680 [ 669.364891][ C0] ? arch_do_signal_or_restart+0x809/0x1680 [ 669.364905][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 669.364920][ C0] ? nmi_handle+0xa8/0x280 [ 669.364935][ C0] ? arch_do_signal_or_restart+0x809/0x1680 [ 669.364949][ C0] ? default_do_nmi+0x69/0x160 [ 669.364964][ C0] ? exc_nmi+0xaf/0x120 [ 669.364977][ C0] ? end_repeat_nmi+0x16/0x31 [ 669.364992][ C0] ? copy_fpstate_to_sigframe+0x853/0x9a0 [ 669.365009][ C0] ? arch_do_signal_or_restart+0x809/0x1680 [ 669.365022][ C0] ? arch_do_signal_or_restart+0x809/0x1680 [ 669.365037][ C0] ? arch_do_signal_or_restart+0x809/0x1680 [ 669.365050][ C0] [ 669.365054][ C0] [ 669.365062][ C0] ? get_sigframe_size+0x10/0x10 [ 669.365074][ C0] ? __ia32_sys_sigaltstack+0x70/0x70 [ 669.365093][ C0] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 669.365108][ C0] exit_to_user_mode_loop+0xa0/0xe0 [ 669.365124][ C0] exit_to_user_mode_prepare+0x5a/0xa0 [ 669.365138][ C0] syscall_exit_to_user_mode+0x26/0x160 [ 669.365154][ C0] do_syscall_64+0x49/0xb0 [ 669.365167][ C0] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 669.365181][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 669.365198][ C0] RIP: 0033:0x7ff53d853417 [ 669.365216][ 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 [ 669.365226][ C0] RSP: 002b:00007ff53d814238 EFLAGS: 00000246 [ 669.365238][ C0] RAX: 00000000000000ca RBX: 00007ff53d8dd308 RCX: 00007ff53d853419 [ 669.365248][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff53d8dd308 [ 669.365257][ C0] RBP: 00007ff53d8dd300 R08: 00007ff53d8146c0 R09: 00007ff53d8146c0 [ 669.365267][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff53d8dd30c [ 669.365276][ C0] R13: 0000000000000000 R14: 00007ffe246b30e0 R15: 00007ffe246b31c8 [ 669.365288][ C0] [ 858.867420][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 289s! [ 858.876147][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 289s! [ 858.884841][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 283s! [ 858.893692][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 289s! [ 858.901936][ C0] Showing busy workqueues and worker pools: [ 858.907677][ C0] workqueue events: flags=0x0 [ 858.912168][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 858.912209][ C0] pending: psi_avgs_work, vmstat_shepherd [ 858.912250][ C0] workqueue events_unbound: flags=0x2 [ 858.930751][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 858.930791][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 858.930834][ C0] workqueue events_power_efficient: flags=0x80 [ 858.951146][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 858.951186][ C0] pending: neigh_periodic_work, neigh_periodic_work, gc_worker [ 858.951238][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 858.951273][ C0] pending: check_lifetime [ 858.951296][ C0] workqueue mm_percpu_wq: flags=0x8 [ 858.983457][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 858.983499][ C0] pending: vmstat_update [ 858.983523][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 858.983558][ C0] pending: vmstat_update [ 858.983581][ C0] workqueue writeback: flags=0x4a [ 859.012227][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 859.012265][ C0] pending: wb_workfn [ 859.012291][ C0] workqueue kblockd: flags=0x18 [ 859.028021][ C0] pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 859.028061][ C0] pending: blk_mq_timeout_work [ 859.028090][ C0] workqueue dm_bufio_cache: flags=0x8 [ 859.045893][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 859.045932][ C0] pending: work_fn [ 859.045954][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 859.062828][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 859.062868][ C0] pending: addrconf_verify_work