Warning: Permanently added '10.128.1.81' (ED25519) to the list of known hosts. executing program executing program [ 282.473057][ T30] audit: type=1400 audit(1744143736.360:66): avc: denied { execmem } for pid=547 comm="syz-executor254" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 382.519691][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 382.526481][ C0] (detected by 0, t=10002 jiffies, g=2961, q=105) [ 382.532821][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10002 (4294975466-4294965464), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 382.546022][ C0] rcu: rcu_preempt kthread starved for 10002 jiffies! g2961 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 382.556943][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 382.566747][ C0] rcu: RCU grace-period kthread stack dump: [ 382.572490][ C0] task:rcu_preempt state:R running task stack:28264 pid: 14 ppid: 2 flags:0x00004000 [ 382.583079][ C0] Call Trace: [ 382.586195][ C0] [ 382.588985][ C0] __schedule+0xccc/0x1590 [ 382.593231][ C0] ? release_firmware_map_entry+0x190/0x190 [ 382.598956][ C0] schedule+0x11f/0x1e0 [ 382.602944][ C0] schedule_timeout+0x18c/0x370 [ 382.607637][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 382.612667][ C0] ? console_conditional_schedule+0x30/0x30 [ 382.618395][ C0] ? update_process_times+0x200/0x200 [ 382.623611][ C0] ? prepare_to_swait_event+0x308/0x320 [ 382.628983][ C0] rcu_gp_fqs_loop+0x2af/0xf80 [ 382.633592][ C0] ? debug_smp_processor_id+0x17/0x20 [ 382.638793][ C0] ? __note_gp_changes+0x4ab/0x920 [ 382.643732][ C0] ? rcu_gp_init+0xc30/0xc30 [ 382.648354][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 382.653470][ C0] ? rcu_gp_init+0x9cf/0xc30 [ 382.657900][ C0] rcu_gp_kthread+0xa4/0x350 [ 382.662333][ C0] ? _raw_spin_lock+0x1b0/0x1b0 [ 382.667015][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 382.671533][ C0] ? __kasan_check_read+0x11/0x20 [ 382.676384][ C0] ? __kthread_parkme+0xb2/0x200 [ 382.681164][ C0] kthread+0x421/0x510 [ 382.685069][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 382.689580][ C0] ? kthread_blkcg+0xd0/0xd0 [ 382.694006][ C0] ret_from_fork+0x1f/0x30 [ 382.698260][ C0] [ 382.701124][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 382.707295][ C0] Sending NMI from CPU 0 to CPUs 1: [ 382.712338][ C1] NMI backtrace for cpu 1 [ 382.712348][ C1] CPU: 1 PID: 560 Comm: syz-executor254 Not tainted 5.15.178-syzkaller-00255-g8b377d8dcfe4 #0 [ 382.712366][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 382.712378][ C1] RIP: 0010:tick_program_event+0x49/0x120 [ 382.712406][ C1] Code: 0e 0c 00 48 c7 c7 a0 24 4a 85 e8 72 b3 7d 03 65 48 8b 1d 9a 41 9e 7e 49 89 df 4c 89 ef 4c 89 e6 e8 9c 12 0c 00 4d 39 ec 74 61 <48> 83 c3 38 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f [ 382.712423][ C1] RSP: 0018:ffffc900001d0e70 EFLAGS: 00000093 [ 382.712438][ C1] RAX: 0000000000010000 RBX: ffff8881f7126e80 RCX: ffff88810e8013c0 [ 382.712451][ C1] RDX: 0000000000010000 RSI: 000000591ab29300 RDI: 7fffffffffffffff [ 382.712463][ C1] RBP: ffffc900001d0e98 R08: ffffffff81645e24 R09: 0000000000000003 [ 382.712478][ C1] R10: fffff5200003a19c R11: dffffc0000000001 R12: 000000591ab29300 [ 382.712490][ C1] R13: 7fffffffffffffff R14: 0000000000000000 R15: ffff8881f7126e80 [ 382.712502][ C1] FS: 00007f408846b6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 382.712517][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 382.712528][ C1] CR2: 00007f408846ad80 CR3: 000000010cdec000 CR4: 00000000003506a0 [ 382.712543][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 382.712552][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 382.712563][ C1] Call Trace: [ 382.712568][ C1] [ 382.712573][ C1] ? show_regs+0x58/0x60 [ 382.712591][ C1] ? nmi_cpu_backtrace+0x29f/0x300 [ 382.712607][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 382.712624][ C1] ? tick_program_event+0x49/0x120 [ 382.712641][ C1] ? tick_program_event+0x49/0x120 [ 382.712670][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 382.712688][ C1] ? nmi_handle+0xa8/0x280 [ 382.712704][ C1] ? tick_program_event+0x49/0x120 [ 382.712721][ C1] ? default_do_nmi+0x69/0x160 [ 382.712738][ C1] ? exc_nmi+0xad/0x100 [ 382.712752][ C1] ? end_repeat_nmi+0x16/0x31 [ 382.712770][ C1] ? tick_program_event+0x44/0x120 [ 382.712787][ C1] ? tick_program_event+0x49/0x120 [ 382.712803][ C1] ? tick_program_event+0x49/0x120 [ 382.712820][ C1] ? tick_program_event+0x49/0x120 [ 382.712837][ C1] [ 382.712841][ C1] [ 382.712846][ C1] hrtimer_interrupt+0x625/0xaa0 [ 382.712866][ C1] __sysvec_apic_timer_interrupt+0xfb/0x3f0 [ 382.712883][ C1] sysvec_apic_timer_interrupt+0xa4/0xc0 [ 382.712900][ C1] [ 382.712904][ C1] [ 382.712909][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 382.712926][ C1] RIP: 0010:_raw_spin_unlock_irq+0x49/0x70 [ 382.712942][ C1] Code: 08 00 74 0c 48 c7 c7 58 5a ad 86 e8 a1 a4 ca fc 48 83 3d 21 27 c5 01 00 74 2a 48 89 df e8 e3 f4 6c fc 66 90 fb bf 01 00 00 00 62 3e 64 fc 65 8b 05 33 3a 1a 7b 85 c0 74 03 5b 5d c3 e8 63 54 [ 382.712955][ C1] RSP: 0018:ffffc90000a57bb8 EFLAGS: 00000246 [ 382.712967][ C1] RAX: 0000000000000001 RBX: ffff88810e7f08c0 RCX: dffffc0000000000 [ 382.712979][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 382.712988][ C1] RBP: ffffc90000a57bc0 R08: ffffffff8145b13a R09: fffff5200014afc0 [ 382.713000][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810e7f08c0 [ 382.713011][ C1] R13: ffff88810e7f0ce0 R14: 0000000000000021 R15: dffffc0000000000 [ 382.713023][ C1] ? get_signal+0x151a/0x1630 [ 382.713041][ C1] ? _raw_spin_unlock_irq+0x41/0x70 [ 382.713056][ C1] get_signal+0x1562/0x1630 [ 382.713074][ C1] arch_do_signal_or_restart+0xbd/0x1680 [ 382.713090][ C1] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 382.713107][ C1] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 382.713122][ C1] ? __kasan_check_write+0x14/0x20 [ 382.713146][ C1] ? _copy_from_user+0x96/0xd0 [ 382.713162][ C1] ? restore_altstack+0x274/0x400 [ 382.713180][ C1] ? get_sigframe_size+0x10/0x10 [ 382.713194][ C1] ? __ia32_sys_sigaltstack+0x70/0x70 [ 382.713214][ C1] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 382.713230][ C1] exit_to_user_mode_loop+0xa0/0xe0 [ 382.713247][ C1] exit_to_user_mode_prepare+0x5a/0xa0 [ 382.713264][ C1] syscall_exit_to_user_mode+0x26/0x160 [ 382.713281][ C1] do_syscall_64+0x47/0xb0 [ 382.713295][ C1] ? clear_bhb_loop+0x35/0x90 [ 382.713311][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 382.713327][ C1] RIP: 0033:0x7f40884ab6c7 [ 382.713348][ C1] Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 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 [ 382.713360][ C1] RSP: 002b:00007f408846b178 EFLAGS: 00000246 [ 382.713372][ C1] RAX: 00000000000000ca RBX: 00007f40885353c8 RCX: 00007f40884ab6c9 [ 382.713384][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f40885353c8 [ 382.713394][ C1] RBP: 00007f40885353c0 R08: 00007f408846b6c0 R09: 00007f408846b6c0 [ 382.713406][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f40885353cc [ 382.713416][ C1] R13: 0000000000000000 R14: 00007ffd2442b2a0 R15: 00007ffd2442b388 [ 382.713429][ C1] [ 383.190013][ C0] sched: RT throttling activated [ 572.179613][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 288s! [ 572.188353][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 286s! [ 572.197050][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 289s! [ 572.205296][ C0] Showing busy workqueues and worker pools: [ 572.211017][ C0] workqueue events: flags=0x0 [ 572.215647][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 572.215703][ C0] pending: vmstat_shepherd, psi_avgs_work [ 572.215753][ C0] workqueue events_unbound: flags=0x2 [ 572.234323][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 572.234370][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 572.234423][ C0] workqueue events_power_efficient: flags=0x80 [ 572.254823][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 572.254880][ C0] pending: neigh_periodic_work, neigh_periodic_work, gc_worker [ 572.254940][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.254982][ C0] pending: check_lifetime [ 572.255011][ C0] workqueue writeback: flags=0x4a [ 572.287010][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 572.287057][ C0] pending: wb_workfn [ 572.287168][ C0] workqueue dm_bufio_cache: flags=0x8 [ 572.303480][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 572.303531][ C0] pending: work_fn [ 572.303605][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 572.320433][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 572.320481][ C0] pending: addrconf_verify_work