Warning: Permanently added '10.128.1.171' (ED25519) to the list of known hosts. executing program executing program executing program [ 436.258042][ T28] audit: type=1400 audit(1716767399.894:66): avc: denied { execmem } for pid=702 comm="syz-executor268" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 536.289490][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 536.296286][ C1] (detected by 1, t=10002 jiffies, g=3909, q=134 ncpus=2) [ 536.303385][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294990844-4294980841), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 536.316675][ C1] rcu: rcu_preempt kthread starved for 10004 jiffies! g3909 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 536.327608][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 536.337417][ C1] rcu: RCU grace-period kthread stack dump: [ 536.343151][ C1] task:rcu_preempt state:R running task stack:28040 pid:14 ppid:2 flags:0x00004000 [ 536.353737][ C1] Call Trace: [ 536.356849][ C1] [ 536.359632][ C1] __schedule+0xca7/0x1550 [ 536.363885][ C1] ? __sched_text_start+0x8/0x8 [ 536.368568][ C1] ? __kasan_check_write+0x14/0x20 [ 536.373513][ C1] schedule+0xc3/0x180 [ 536.377423][ C1] schedule_timeout+0x18c/0x380 [ 536.382104][ C1] ? _raw_spin_unlock_irq+0x4d/0x70 [ 536.387141][ C1] ? console_conditional_schedule+0x10/0x10 [ 536.392872][ C1] ? update_process_times+0x1b0/0x1b0 [ 536.398077][ C1] ? prepare_to_swait_event+0x308/0x320 [ 536.403460][ C1] rcu_gp_fqs_loop+0x2ed/0x1060 [ 536.408142][ C1] ? _raw_spin_unlock_irq+0x4d/0x70 [ 536.413180][ C1] ? rcu_gp_init+0xc7f/0xf80 [ 536.417603][ C1] ? rcu_gp_init+0xf80/0xf80 [ 536.422030][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 536.427677][ C1] ? finish_swait+0x17d/0x1b0 [ 536.432185][ C1] rcu_gp_kthread+0xa3/0x390 [ 536.436609][ C1] ? queued_spin_lock_slowpath+0x50/0x50 [ 536.442074][ C1] ? set_cpus_allowed_ptr+0xa4/0xe0 [ 536.447116][ C1] ? __kasan_check_read+0x11/0x20 [ 536.451973][ C1] ? __kthread_parkme+0x12d/0x180 [ 536.456837][ C1] kthread+0x26d/0x300 [ 536.460770][ C1] ? queued_spin_lock_slowpath+0x50/0x50 [ 536.466292][ C1] ? kthread_blkcg+0xd0/0xd0 [ 536.470722][ C1] ret_from_fork+0x1f/0x30 [ 536.474978][ C1] [ 536.477835][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 536.484017][ C1] Sending NMI from CPU 1 to CPUs 0: [ 536.489058][ C0] NMI backtrace for cpu 0 [ 536.489070][ C0] CPU: 0 PID: 714 Comm: syz-executor268 Not tainted 6.1.75-syzkaller-00026-g68c821783c76 #0 [ 536.489088][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 536.489097][ C0] RIP: 0010:kasan_check_range+0x51/0x2a0 [ 536.489125][ C0] Code: 48 c1 eb 2f 81 fb ff ff 01 00 0f 82 55 02 00 00 49 89 fc 49 c1 ec 03 49 b8 00 00 00 00 00 fc ff df 4f 8d 0c 04 4c 8d 54 37 ff <49> c1 ea 03 49 bb 01 00 00 00 00 fc ff df 4f 8d 34 1a 4d 89 f5 4d [ 536.489139][ C0] RSP: 0018:ffffc900018a7a38 EFLAGS: 00000a02 [ 536.489154][ C0] RAX: ffffc900018a7b01 RBX: 000000000001ffff RCX: ffffffff81314a36 [ 536.489167][ C0] RDX: 0000000000000001 RSI: 0000000000000030 RDI: ffffc900018a7bb0 [ 536.489178][ C0] RBP: ffffc900018a7a60 R08: dffffc0000000000 R09: fffff52000314f76 [ 536.489191][ C0] R10: ffffc900018a7bdf R11: dffffc0000000001 R12: 1ffff92000314f76 [ 536.489203][ C0] R13: 00007f01c65a9e40 R14: 0000000000000000 R15: ffffc900018a7bb0 [ 536.489215][ C0] FS: 00007f01c65aa6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 536.489230][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 536.489242][ C0] CR2: 00007f01c65a9e40 CR3: 0000000120c44000 CR4: 00000000003506b0 [ 536.489257][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 536.489267][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 536.489277][ C0] Call Trace: [ 536.489282][ C0] [ 536.489288][ C0] ? show_regs+0x58/0x60 [ 536.489305][ C0] ? nmi_cpu_backtrace+0x285/0x2f0 [ 536.489328][ C0] ? nmi_trigger_cpumask_backtrace+0x3c0/0x3c0 [ 536.489351][ C0] ? kasan_check_range+0x51/0x2a0 [ 536.489374][ C0] ? kasan_check_range+0x51/0x2a0 [ 536.489397][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 536.489416][ C0] ? nmi_handle+0xa7/0x280 [ 536.489440][ C0] ? kasan_check_range+0x51/0x2a0 [ 536.489463][ C0] ? default_do_nmi+0x69/0x160 [ 536.489485][ C0] ? exc_nmi+0xaf/0x120 [ 536.489503][ C0] ? end_repeat_nmi+0x16/0x31 [ 536.489521][ C0] ? fpu__restore_sig+0x196/0x1100 [ 536.489542][ C0] ? kasan_check_range+0x51/0x2a0 [ 536.489565][ C0] ? kasan_check_range+0x51/0x2a0 [ 536.489588][ C0] ? kasan_check_range+0x51/0x2a0 [ 536.489611][ C0] [ 536.489616][ C0] [ 536.489621][ C0] __kasan_check_write+0x14/0x20 [ 536.489636][ C0] fpu__restore_sig+0x196/0x1100 [ 536.489658][ C0] ? copy_fpstate_to_sigframe+0xba0/0xba0 [ 536.489682][ C0] ? __this_cpu_preempt_check+0x13/0x20 [ 536.489706][ C0] ? __kasan_check_write+0x14/0x20 [ 536.489722][ C0] restore_sigcontext+0x633/0x700 [ 536.489745][ C0] ? fpu__clear_user_states+0x171/0x200 [ 536.489765][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 536.489790][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 536.489820][ C0] ? sched_clock_cpu+0x71/0x2b0 [ 536.489839][ C0] __do_sys_rt_sigreturn+0x153/0x1e0 [ 536.489863][ C0] ? x32_copy_siginfo_to_user+0x270/0x270 [ 536.489887][ C0] ? debug_smp_processor_id+0x17/0x20 [ 536.489907][ C0] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 536.489928][ C0] ? exit_to_user_mode_prepare+0x39/0xa0 [ 536.489950][ C0] do_syscall_64+0x3d/0xb0 [ 536.489965][ C0] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 536.489986][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 536.490013][ C0] RIP: 0033:0x7f01c65e9417 [ 536.490035][ 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 [ 536.490048][ C0] RSP: 002b:00007f01c65aa238 EFLAGS: 00000246 [ 536.490061][ C0] RAX: 00000000000000ca RBX: 00007f01c6673308 RCX: 00007f01c65e9419 [ 536.490073][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f01c6673308 [ 536.490083][ C0] RBP: 00007f01c6673300 R08: 00007f01c65aa6c0 R09: 00007f01c65aa6c0 [ 536.490095][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f01c667330c [ 536.490106][ C0] R13: 0000000000000000 R14: 00007fffd343d7b0 R15: 00007fffd343d898 [ 536.490121][ C0] [ 536.490128][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.071 msecs [ 715.539432][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 278s! [ 715.548172][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 273s! [ 715.557042][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 278s! [ 715.565720][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 279s! [ 715.573967][ C0] Showing busy workqueues and worker pools: [ 715.579691][ C0] workqueue events: flags=0x0 [ 715.584203][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 715.584260][ C0] pending: vmstat_shepherd, psi_avgs_work [ 715.584325][ C0] workqueue events_unbound: flags=0x2 [ 715.602887][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 715.602928][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 715.602989][ C0] workqueue events_power_efficient: flags=0x80 [ 715.623296][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=4/256 refcnt=5 [ 715.623342][ C0] pending: neigh_managed_work, neigh_periodic_work, gc_worker, check_lifetime [ 715.623422][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 715.623461][ C0] pending: neigh_managed_work, neigh_periodic_work [ 715.623515][ C0] workqueue mm_percpu_wq: flags=0x8 [ 715.659156][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.659200][ C0] pending: vmstat_update [ 715.659246][ C0] workqueue writeback: flags=0x4a [ 715.675905][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 715.675944][ C0] pending: wb_workfn [ 715.675974][ C0] workqueue kblockd: flags=0x18 [ 715.691814][ C0] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 715.691858][ C0] pending: blk_mq_timeout_work [ 715.691898][ C0] workqueue dm_bufio_cache: flags=0x8 [ 715.709607][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.709654][ C0] pending: work_fn [ 715.709682][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 715.726515][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 715.726559][ C0] pending: addrconf_verify_work