Warning: Permanently added '10.128.10.31' (ED25519) to the list of known hosts. [ 142.205227][ T30] audit: type=1400 audit(1740368362.963:66): avc: denied { execmem } for pid=408 comm="syz-executor354" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 142.207962][ T408] cgroup: Unknown subsys name 'net' [ 142.224617][ T30] audit: type=1400 audit(1740368362.963:67): avc: denied { mounton } for pid=408 comm="syz-executor354" path="/syzcgroup/unified" dev="sda1" ino=1926 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 142.252335][ T30] audit: type=1400 audit(1740368362.963:68): avc: denied { mount } for pid=408 comm="syz-executor354" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 142.252521][ T408] cgroup: Unknown subsys name 'devices' [ 142.274596][ T30] audit: type=1400 audit(1740368362.983:69): avc: denied { unmount } for pid=408 comm="syz-executor354" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 142.433032][ T408] cgroup: Unknown subsys name 'hugetlb' [ 142.438449][ T408] cgroup: Unknown subsys name 'rlimit' [ 142.595662][ T30] audit: type=1400 audit(1740368363.353:70): avc: denied { mounton } for pid=414 comm="syz-executor354" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 executing program [ 142.622847][ T30] audit: type=1400 audit(1740368363.373:71): avc: denied { mounton } for pid=417 comm="syz-executor354" path="/root/syzkaller.Jw71B8/syz-tmp" dev="sda1" ino=1934 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 142.649895][ T417] request_module fs-gadgetfs succeeded, but still no fs? [ 142.661446][ T30] audit: type=1400 audit(1740368363.373:72): avc: denied { mount } for pid=417 comm="syz-executor354" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1 executing program executing program [ 142.694188][ T30] audit: type=1400 audit(1740368363.373:73): avc: denied { mounton } for pid=417 comm="syz-executor354" path="/root/syzkaller.Jw71B8/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1 [ 242.750741][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 242.757697][ C0] (detected by 0, t=10002 jiffies, g=1801, q=80) [ 242.764067][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10002 (4294961488-4294951486), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 242.777967][ C0] rcu: rcu_preempt kthread starved for 10002 jiffies! g1801 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 242.789905][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 242.801640][ C0] rcu: RCU grace-period kthread stack dump: [ 242.807380][ C0] task:rcu_preempt state:R running task stack:28264 pid: 14 ppid: 2 flags:0x00004000 [ 242.817983][ C0] Call Trace: [ 242.821304][ C0] [ 242.824232][ C0] __schedule+0xccc/0x1590 [ 242.828455][ C0] ? release_firmware_map_entry+0x190/0x190 [ 242.834439][ C0] schedule+0x11f/0x1e0 [ 242.838984][ C0] schedule_timeout+0x18c/0x370 [ 242.843764][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 242.848882][ C0] ? console_conditional_schedule+0x30/0x30 [ 242.854618][ C0] ? update_process_times+0x200/0x200 [ 242.859839][ C0] ? prepare_to_swait_event+0x308/0x320 [ 242.865385][ C0] rcu_gp_fqs_loop+0x2af/0xf80 [ 242.869982][ C0] ? debug_smp_processor_id+0x17/0x20 [ 242.875190][ C0] ? __note_gp_changes+0x4ab/0x920 [ 242.880134][ C0] ? rcu_gp_init+0xc30/0xc30 [ 242.884705][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 242.889890][ C0] ? rcu_gp_init+0x9cf/0xc30 [ 242.894308][ C0] rcu_gp_kthread+0xa4/0x350 [ 242.898822][ C0] ? _raw_spin_lock+0x1b0/0x1b0 [ 242.903508][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 242.908449][ C0] ? __kasan_check_read+0x11/0x20 [ 242.913369][ C0] ? __kthread_parkme+0xb2/0x200 [ 242.918337][ C0] kthread+0x421/0x510 [ 242.922394][ C0] ? wake_nocb_gp+0x1e0/0x1e0 [ 242.927341][ C0] ? kthread_blkcg+0xd0/0xd0 [ 242.931767][ C0] ret_from_fork+0x1f/0x30 [ 242.936036][ C0] [ 242.938883][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 242.945060][ C0] Sending NMI from CPU 0 to CPUs 1: [ 242.950100][ C1] NMI backtrace for cpu 1 [ 242.950117][ C1] CPU: 1 PID: 424 Comm: syz-executor354 Not tainted 5.15.178-syzkaller-00013-g7d1f9b5c2ff5 #0 [ 242.950138][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 242.950150][ C1] RIP: 0010:restore_altstack+0x25a/0x400 [ 242.950179][ C1] Code: 00 eb 05 e8 d8 e9 29 00 4c 8b 74 24 20 44 89 f3 81 e3 ff ff ff 7f 48 89 df 48 c7 c6 00 4c af 86 e8 7b ee 29 00 48 85 db 74 34 <83> fb 02 74 10 83 fb 01 0f 85 c1 00 00 00 e8 a3 e9 29 00 eb 24 e8 [ 242.950196][ C1] RSP: 0018:ffffc90000a87d60 EFLAGS: 00000202 [ 242.950212][ C1] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 000000000000008b [ 242.950223][ C1] RDX: 0000000000000003 RSI: ffffffff86af4c00 RDI: 0000000000000002 [ 242.950234][ C1] RBP: ffffc90000a87e50 R08: 0000000000000005 R09: ffffffff814682f5 [ 242.950247][ C1] R10: 0000000000000003 R11: ffff88811a33e2c0 R12: 1ffff92000150fb4 [ 242.950259][ C1] R13: ffff88811a33e2c0 R14: 0000000000000002 R15: 1ffff11023467d69 [ 242.950271][ C1] FS: 00007fc92bab36c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 242.950286][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 242.950298][ C1] CR2: 00007fc92bab2d80 CR3: 00000001225d7000 CR4: 00000000003506a0 [ 242.950313][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 242.950323][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 242.950334][ C1] Call Trace: [ 242.950340][ C1] [ 242.950346][ C1] ? show_regs+0x58/0x60 [ 242.950364][ C1] ? nmi_cpu_backtrace+0x29f/0x300 [ 242.950382][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 242.950399][ C1] ? restore_altstack+0x25a/0x400 [ 242.950418][ C1] ? restore_altstack+0x25a/0x400 [ 242.950436][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 242.950456][ C1] ? nmi_handle+0xa8/0x280 [ 242.950473][ C1] ? restore_altstack+0x25a/0x400 [ 242.950492][ C1] ? default_do_nmi+0x69/0x160 [ 242.950510][ C1] ? exc_nmi+0xad/0x100 [ 242.950526][ C1] ? end_repeat_nmi+0x16/0x31 [ 242.950544][ C1] ? restore_altstack+0x255/0x400 [ 242.950563][ C1] ? restore_altstack+0x25a/0x400 [ 242.950582][ C1] ? restore_altstack+0x25a/0x400 [ 242.950600][ C1] ? restore_altstack+0x25a/0x400 [ 242.950618][ C1] [ 242.950623][ C1] [ 242.950629][ C1] ? __ia32_sys_sigaltstack+0x70/0x70 [ 242.950651][ C1] __do_sys_rt_sigreturn+0x160/0x1e0 [ 242.950668][ C1] ? x32_copy_siginfo_to_user+0x270/0x270 [ 242.950685][ C1] ? debug_smp_processor_id+0x17/0x20 [ 242.950703][ C1] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 242.950727][ C1] ? exit_to_user_mode_prepare+0x39/0xa0 [ 242.950747][ C1] x64_sys_call+0x91/0x9a0 [ 242.950763][ C1] do_syscall_64+0x3b/0xb0 [ 242.950779][ C1] ? clear_bhb_loop+0x35/0x90 [ 242.950795][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 242.950813][ C1] RIP: 0033:0x7fc92baf4107 [ 242.950828][ C1] Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 242.950841][ C1] RSP: 002b:00007fc92bab3178 EFLAGS: 00000246 [ 242.950854][ C1] RAX: 00000000000000ca RBX: 00007fc92bb7e3c8 RCX: 00007fc92baf4109 [ 242.950866][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc92bb7e3c8 [ 242.950877][ C1] RBP: 00007fc92bb7e3c0 R08: 00007fc92bab36c0 R09: 00007fc92bab36c0 [ 242.950889][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc92bb7e3cc [ 242.950900][ C1] R13: 0000000000000010 R14: 00007ffd4588ec70 R15: 00007ffd4588ed58 [ 242.950915][ C1] [ 428.830717][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 285s! [ 428.839559][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 285s! [ 428.848869][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 285s! [ 428.857113][ C0] Showing busy workqueues and worker pools: [ 428.862920][ C0] workqueue events: flags=0x0 [ 428.867431][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 428.867481][ C0] pending: psi_avgs_work, kfree_rcu_monitor [ 428.867532][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 428.867573][ C0] pending: vmstat_shepherd, kfree_rcu_monitor [ 428.867618][ C0] workqueue events_unbound: flags=0x2 [ 428.900312][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 428.900357][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 428.900409][ C0] workqueue events_power_efficient: flags=0x80 [ 428.920730][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 428.920786][ C0] pending: neigh_periodic_work, gc_worker [ 428.920829][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 428.920878][ C0] pending: neigh_periodic_work, check_lifetime [ 428.920920][ C0] workqueue mm_percpu_wq: flags=0x8 [ 428.953112][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.953166][ C0] pending: vmstat_update [ 428.953198][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.953238][ C0] pending: vmstat_update [ 428.953267][ C0] workqueue writeback: flags=0x4a [ 428.982245][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 428.982292][ C0] pending: wb_workfn [ 428.982467][ C0] workqueue dm_bufio_cache: flags=0x8 [ 428.998954][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 428.999014][ C0] pending: work_fn [ 428.999152][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 429.015997][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 429.016048][ C0] pending: addrconf_verify_work