[ 3.011649][ T101] udevd[101]: starting version 3.2.11 [ 3.036840][ T102] udevd[102]: starting eudev-3.2.11 [ 3.038851][ T101] udevd (101) used greatest stack depth: 22320 bytes left [ 6.630225][ T104] udevd (104) used greatest stack depth: 21744 bytes left [ 12.936484][ T28] kauditd_printk_skb: 50 callbacks suppressed [ 12.936496][ T28] audit: type=1400 audit(1714249332.818:61): avc: denied { transition } for pid=227 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 [ 12.940737][ T28] audit: type=1400 audit(1714249332.818:62): avc: denied { noatsecure } for pid=227 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.943657][ T28] audit: type=1400 audit(1714249332.828:63): avc: denied { write } for pid=227 comm="sh" path="pipe:[13410]" dev="pipefs" ino=13410 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 12.947143][ T28] audit: type=1400 audit(1714249332.828:64): avc: denied { rlimitinh } for pid=227 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.950042][ T28] audit: type=1400 audit(1714249332.828:65): avc: denied { siginh } for pid=227 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.2' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 426.730471][ T28] audit: type=1400 audit(1714249746.618:66): avc: denied { execmem } for pid=696 comm="syz-executor313" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 526.756554][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 526.763346][ C0] (detected by 0, t=10002 jiffies, g=3545, q=176 ncpus=2) [ 526.770353][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294989895-4294979892), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 526.783556][ C0] rcu: rcu_preempt kthread starved for 10004 jiffies! g3545 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 526.794481][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 526.804294][ C0] rcu: RCU grace-period kthread stack dump: [ 526.810024][ C0] task:rcu_preempt state:R running task stack:28040 pid:14 ppid:2 flags:0x00004000 [ 526.820616][ C0] Call Trace: [ 526.823730][ C0] [ 526.826506][ C0] __schedule+0xca7/0x1550 [ 526.830765][ C0] ? __sched_text_start+0x8/0x8 [ 526.835448][ C0] ? __kasan_check_write+0x14/0x20 [ 526.840591][ C0] schedule+0xc3/0x180 [ 526.844492][ C0] schedule_timeout+0x18c/0x380 [ 526.849177][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 526.854212][ C0] ? console_conditional_schedule+0x10/0x10 [ 526.859939][ C0] ? update_process_times+0x1b0/0x1b0 [ 526.865148][ C0] ? prepare_to_swait_event+0x308/0x320 [ 526.870532][ C0] rcu_gp_fqs_loop+0x2ed/0x1060 [ 526.875215][ C0] ? _raw_spin_unlock_irq+0x4d/0x70 [ 526.880247][ C0] ? rcu_gp_init+0xc7f/0xf80 [ 526.884677][ C0] ? rcu_gp_init+0xf80/0xf80 [ 526.889102][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 526.894743][ C0] ? finish_swait+0x17d/0x1b0 [ 526.899257][ C0] rcu_gp_kthread+0xa3/0x390 [ 526.903681][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 526.909149][ C0] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 526.914186][ C0] ? __kasan_check_read+0x11/0x20 [ 526.919043][ C0] ? __kthread_parkme+0x12d/0x180 [ 526.923913][ C0] kthread+0x26d/0x300 [ 526.927808][ C0] ? queued_spin_lock_slowpath+0x50/0x50 [ 526.933277][ C0] ? kthread_blkcg+0xd0/0xd0 [ 526.937705][ C0] ret_from_fork+0x1f/0x30 [ 526.941958][ C0] [ 526.944820][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 526.950997][ C0] CPU: 0 PID: 709 Comm: syz-executor313 Not tainted 6.1.75-syzkaller-00069-gfa87a072a7fc #0 [ 526.960879][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 526.970772][ C0] RIP: 0010:do_softirq+0x11d/0x150 [ 526.975720][ C0] Code: 11 da 03 5c 48 c7 c7 40 05 49 85 e8 4d 9c b3 03 65 c6 05 d5 7e bc 7e 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 04 24 0e 36 e0 45 <49> c7 04 1f 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 48 [ 526.995160][ C0] RSP: 0018:ffffc90001d679e0 EFLAGS: 00000206 [ 527.001067][ C0] RAX: 0000000000000000 RBX: 1ffff920003acf3c RCX: ffff88810f1a5100 [ 527.008874][ C0] RDX: 1ffff11021e34a25 RSI: ffffffff85490540 RDI: ffffffff85a9c820 [ 527.016684][ C0] RBP: ffffc90001d67a60 R08: ffffffff8772d000 R09: ffffffff8772d008 [ 527.024494][ C0] R10: ffffffff8772d018 R11: ffffffff8772d010 R12: 1ffff920003acf40 [ 527.032308][ C0] R13: 0000000000000000 R14: 0000000000000246 R15: dffffc0000000000 [ 527.040118][ C0] FS: 00007f5ccb1716c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 527.048883][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 527.055309][ C0] CR2: 00007f5ccb170e40 CR3: 0000000122dc3000 CR4: 00000000003506b0 [ 527.063130][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 527.070929][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 527.078741][ C0] Call Trace: [ 527.081873][ C0] [ 527.084557][ C0] ? show_regs+0x58/0x60 [ 527.088635][ C0] ? dump_cpu_task+0x3c/0x70 [ 527.093068][ C0] ? rcu_check_gp_kthread_starvation+0x1d1/0x240 [ 527.099226][ C0] ? _find_next_bit+0x126/0x130 [ 527.103916][ C0] ? print_other_cpu_stall+0x1140/0x1300 [ 527.109380][ C0] ? print_cpu_stall+0x590/0x590 [ 527.114156][ C0] ? acct_account_cputime+0x1c2/0x2c0 [ 527.119366][ C0] ? rcu_sched_clock_irq+0xaeb/0x1330 [ 527.124569][ C0] ? rcu_boost_kthread_setaffinity+0x5a0/0x5a0 [ 527.130556][ C0] ? hrtimer_run_queues+0x15f/0x440 [ 527.135591][ C0] ? tick_setup_sched_timer+0x490/0x490 [ 527.140971][ C0] ? update_process_times+0x149/0x1b0 [ 527.146178][ C0] ? tick_sched_timer+0x188/0x240 [ 527.151160][ C0] ? tick_setup_sched_timer+0x490/0x490 [ 527.156544][ C0] ? __hrtimer_run_queues+0x41a/0xad0 [ 527.161748][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 527.166690][ C0] ? try_to_wake_up+0x670/0x1220 [ 527.171462][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 527.177365][ C0] ? hrtimer_interrupt+0x40c/0xaa0 [ 527.182317][ C0] ? __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 527.188217][ C0] ? sysvec_apic_timer_interrupt+0x95/0xc0 [ 527.193856][ C0] [ 527.196644][ C0] [ 527.199411][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 527.205403][ C0] ? do_softirq+0x11d/0x150 [ 527.209740][ C0] ? __local_bh_enable_ip+0x80/0x80 [ 527.214774][ C0] __local_bh_enable_ip+0x75/0x80 [ 527.219635][ C0] fpu__restore_sig+0x89d/0x1100 [ 527.224408][ C0] ? fpu__restore_sig+0x3d8/0x1100 [ 527.229354][ C0] ? copy_fpstate_to_sigframe+0xba0/0xba0 [ 527.234909][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 527.240290][ C0] ? __kasan_check_write+0x14/0x20 [ 527.245238][ C0] restore_sigcontext+0x633/0x700 [ 527.250097][ C0] ? fpu__clear_user_states+0x171/0x200 [ 527.255480][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 527.261725][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 527.266679][ C0] __do_sys_rt_sigreturn+0x153/0x1e0 [ 527.271795][ C0] ? x32_copy_siginfo_to_user+0x270/0x270 [ 527.277351][ C0] ? debug_smp_processor_id+0x17/0x20 [ 527.282555][ C0] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 527.288461][ C0] ? exit_to_user_mode_prepare+0x39/0xa0 [ 527.293941][ C0] do_syscall_64+0x3d/0xb0 [ 527.298178][ C0] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 527.303823][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 527.309550][ C0] RIP: 0033:0x7f5ccb1b0417 [ 527.313804][ 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 [ 527.333245][ C0] RSP: 002b:00007f5ccb171238 EFLAGS: 00000246 [ 527.339149][ C0] RAX: 00000000000000ca RBX: 00007f5ccb23a308 RCX: 00007f5ccb1b0419 [ 527.346955][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5ccb23a308 [ 527.354768][ C0] RBP: 00007f5ccb23a300 R08: 00007f5ccb1716c0 R09: 00007f5ccb1716c0 [ 527.362578][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5ccb23a30c [ 527.370398][ C0] R13: 0000000000000000 R14: 00007ffec0114110 R15: 00007ffec01141f8 [ 527.378208][ C0] [ 527.381072][ C0] sched: RT throttling activated [ 572.136573][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 145s! [ 572.145298][ C0] Showing busy workqueues and worker pools: [ 572.151034][ C0] workqueue events: flags=0x0 [ 572.155548][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 572.155588][ C0] pending: vmstat_shepherd, psi_avgs_work [ 572.155648][ C0] workqueue events_unbound: flags=0x2 [ 572.174108][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 572.174144][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 572.174183][ C0] workqueue events_power_efficient: flags=0x80 [ 572.194503][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=5/256 refcnt=6 [ 572.194543][ C0] pending: neigh_managed_work, neigh_periodic_work, neigh_managed_work, neigh_periodic_work, gc_worker [ 572.194751][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.194787][ C0] pending: check_lifetime [ 572.194824][ C0] workqueue mm_percpu_wq: flags=0x8 [ 572.230470][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.230512][ C0] pending: vmstat_update [ 572.230548][ C0] workqueue writeback: flags=0x4a [ 572.247216][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 572.247251][ C0] pending: wb_workfn [ 572.247276][ C0] workqueue kblockd: flags=0x18 [ 572.263003][ C0] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 572.263040][ C0] pending: blk_mq_timeout_work [ 572.263164][ C0] workqueue dm_bufio_cache: flags=0x8 [ 572.280929][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.280967][ C0] pending: work_fn [ 572.280991][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 572.297766][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 572.297805][ C0] pending: addrconf_verify_work