Warning: Permanently added '10.128.0.55' (ED25519) to the list of known hosts. [ 116.810803][ T30] audit: type=1400 audit(1748556876.228:64): avc: denied { execmem } for pid=282 comm="syz-executor136" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 116.847401][ T30] audit: type=1400 audit(1748556876.238:65): avc: denied { mounton } for pid=288 comm="syz-executor136" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 116.869462][ T30] audit: type=1400 audit(1748556876.268:66): avc: denied { mounton } for pid=289 comm="syz-executor136" path="/root/syzkaller.TXSUBX/syz-tmp" dev="sda1" ino=2028 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 116.871067][ T289] request_module fs-gadgetfs succeeded, but still no fs? [ 116.894803][ T30] audit: type=1400 audit(1748556876.268:67): avc: denied { mount } for pid=289 comm="syz-executor136" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1 [ 116.923525][ T30] audit: type=1400 audit(1748556876.268:68): avc: denied { mounton } for pid=289 comm="syz-executor136" path="/root/syzkaller.TXSUBX/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 [ 116.949263][ T30] audit: type=1400 audit(1748556876.268:69): avc: denied { mount } for pid=289 comm="syz-executor136" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1 [ 116.972757][ T30] audit: type=1400 audit(1748556876.268:70): avc: denied { mounton } for pid=289 comm="syz-executor136" path="/root/syzkaller.TXSUBX/syz-tmp/newroot/sys/kernel/debug" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=dir permissive=1 [ 116.999762][ T30] audit: type=1400 audit(1748556876.268:71): avc: denied { mounton } for pid=289 comm="syz-executor136" path="/root/syzkaller.TXSUBX/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14153 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1 [ 117.027816][ T30] audit: type=1400 audit(1748556876.268:72): avc: denied { unmount } for pid=289 comm="syz-executor136" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 217.063918][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 217.071175][ C0] (detected by 0, t=10002 jiffies, g=525, q=210) [ 217.077593][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10002 (4294958933-4294948931), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 217.091042][ C0] rcu: rcu_preempt kthread starved for 10002 jiffies! g525 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 217.102063][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 217.112222][ C0] rcu: RCU grace-period kthread stack dump: [ 217.118105][ C0] task:rcu_preempt state:R running task stack:28752 pid: 14 ppid: 2 flags:0x00004000 [ 217.128982][ C0] Call Trace: [ 217.132262][ C0] [ 217.135193][ C0] __schedule+0xb6e/0x14c0 [ 217.139634][ C0] ? release_firmware_map_entry+0x190/0x190 [ 217.145527][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 217.151337][ C0] ? __mod_timer+0x7ae/0xb30 [ 217.155930][ C0] schedule+0x11e/0x1e0 [ 217.160090][ C0] schedule_timeout+0x12c/0x2e0 [ 217.164942][ C0] ? console_conditional_schedule+0x30/0x30 [ 217.170849][ C0] ? update_process_times+0x200/0x200 [ 217.176227][ C0] ? prepare_to_swait_event+0x308/0x320 [ 217.181778][ C0] rcu_gp_fqs_loop+0x293/0xf60 [ 217.186543][ C0] ? debug_smp_processor_id+0x17/0x20 [ 217.191916][ C0] ? __note_gp_changes+0x4e2/0x9e0 [ 217.197028][ C0] ? rcu_gp_init+0xc00/0xc00 [ 217.201619][ C0] ? _raw_spin_unlock_irq+0x4e/0x70 [ 217.206817][ C0] ? rcu_gp_init+0x9a7/0xc00 [ 217.211433][ C0] rcu_gp_kthread+0x98/0x330 [ 217.216029][ C0] ? wake_nocb_gp+0x1d0/0x1d0 [ 217.220704][ C0] ? __kasan_check_read+0x11/0x20 [ 217.225735][ C0] ? __kthread_parkme+0xac/0x200 [ 217.230676][ C0] ? preempt_count_add+0x90/0x1b0 [ 217.235705][ C0] kthread+0x411/0x500 [ 217.239774][ C0] ? wake_nocb_gp+0x1d0/0x1d0 [ 217.244456][ C0] ? kthread_blkcg+0xd0/0xd0 [ 217.249047][ C0] ret_from_fork+0x1f/0x30 [ 217.253466][ C0] [ 217.256482][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 217.262797][ C0] Sending NMI from CPU 0 to CPUs 1: [ 217.268012][ C1] NMI backtrace for cpu 1 [ 217.268027][ C1] CPU: 1 PID: 301 Comm: syz-executor136 Not tainted 5.15.184-syzkaller-00129-g4032a894ccb2 #0 [ 217.268044][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 217.268051][ C1] RIP: 0010:entry_SYSCALL_64_after_hwframe+0x19/0xd0 [ 217.268076][ C1] Code: 02 00 6a 2b 65 ff 34 25 14 a0 00 00 41 53 6a 33 51 50 57 56 52 51 6a da 41 50 41 51 41 52 41 53 53 55 41 54 41 55 41 56 41 57 <31> d2 31 c9 45 31 c0 45 31 c9 45 31 d2 45 31 db 31 db 31 ed 45 31 [ 217.268087][ C1] RSP: 0018:ffffc90000b57f58 EFLAGS: 00000002 [ 217.268102][ C1] RAX: 000000000000000f RBX: 00007fcff0e3b188 RCX: 00007fcff0d7c039 [ 217.268113][ C1] RDX: 00007fcff0d67bc0 RSI: 00007fcff0d67cf0 RDI: 0000000000000021 [ 217.268123][ C1] RBP: 00007fcff0e3b180 R08: 00007fcff0d686c0 R09: 00007fcff0d686c0 [ 217.268133][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fcff0e3b18c [ 217.268143][ C1] R13: 000000000000000b R14: 00007ffc9d73aa30 R15: 00007ffc9d73ab18 [ 217.268153][ C1] FS: 00007fcff0d686c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 217.268166][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 217.268177][ C1] CR2: 00007fcff0d67d80 CR3: 000000011de62000 CR4: 00000000003506a0 [ 217.268192][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 217.268201][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 217.268221][ C1] Call Trace: [ 217.268226][ C1] [ 217.268233][ C1] [ 285.333901][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 168s! [ 285.342837][ C0] Showing busy workqueues and worker pools: [ 285.348743][ C0] workqueue events: flags=0x0 [ 285.353413][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.353448][ C0] pending: kfree_rcu_monitor [ 285.353471][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 285.353501][ C0] pending: psi_avgs_work, vmstat_shepherd [ 285.353532][ C0] workqueue events_unbound: flags=0x2 [ 285.385148][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 285.385178][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 285.385211][ C0] workqueue events_power_efficient: flags=0x80 [ 285.406100][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 285.406134][ C0] pending: neigh_periodic_work, gc_worker, check_lifetime [ 285.406176][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.406205][ C0] pending: neigh_periodic_work [ 285.406224][ C0] workqueue mm_percpu_wq: flags=0x8 [ 285.439206][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.439239][ C0] pending: vmstat_update [ 285.439256][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.439286][ C0] pending: vmstat_update [ 285.439305][ C0] workqueue writeback: flags=0x4a [ 285.468827][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 285.468857][ C0] pending: wb_workfn [ 285.469063][ C0] workqueue dm_bufio_cache: flags=0x8 [ 285.485876][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.485910][ C0] pending: work_fn [ 285.485998][ C0] workqueue mld: flags=0x40008 [ 285.502442][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=8 [ 285.502474][ C0] pending: mld_dad_work [ 285.502490][ C0] inactive: mld_ifc_work, mld_dad_work, mld_ifc_work, mld_ifc_work, mld_ifc_work, mld_ifc_work [ 285.502576][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 285.530832][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 285.530865][ C0] pending: addrconf_verify_work