INFO: task kworker/0:10:5328 blocked for more than 143 seconds. Not tainted 5.15.164-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:10 state:D stack:24824 pid: 5328 ppid: 2 flags:0x00004000 Workqueue: gfs_recovery gfs2_recover_func Call Trace: context_switch kernel/sched/core.c:5030 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376 schedule+0x11b/0x1f0 kernel/sched/core.c:6459 io_schedule+0x88/0x100 kernel/sched/core.c:8484 wait_on_page_bit_common+0xa13/0x1180 mm/filemap.c:1356 wait_on_page_locked include/linux/pagemap.h:688 [inline] gfs2_jhead_process_page+0x25e/0xbf0 fs/gfs2/lops.c:476 gfs2_find_jhead+0xa5c/0x10c0 fs/gfs2/lops.c:586 gfs2_recover_func+0x6ce/0x1f00 fs/gfs2/recovery.c:462 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 INFO: task syz.2.466:5455 blocked for more than 144 seconds. Not tainted 5.15.164-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.466 state:D stack:22264 pid: 5455 ppid: 5266 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5030 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376 schedule+0x11b/0x1f0 kernel/sched/core.c:6459 bit_wait+0xe/0xc0 kernel/sched/wait_bit.c:199 __wait_on_bit+0xb9/0x180 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x1d0/0x250 kernel/sched/wait_bit.c:64 wait_on_bit include/linux/wait_bit.h:76 [inline] gfs2_recover_journal+0x110/0x160 fs/gfs2/recovery.c:579 init_journal+0x1804/0x23c0 fs/gfs2/ops_fstype.c:837 init_inodes+0xdc/0x310 fs/gfs2/ops_fstype.c:891 gfs2_fill_super+0x1c2c/0x2750 fs/gfs2/ops_fstype.c:1249 get_tree_bdev+0x3fe/0x620 fs/super.c:1312 gfs2_get_tree+0x50/0x210 fs/gfs2/ops_fstype.c:1332 vfs_get_tree+0x88/0x270 fs/super.c:1517 do_new_mount+0x2ba/0xb40 fs/namespace.c:3005 do_mount fs/namespace.c:3348 [inline] __do_sys_mount fs/namespace.c:3556 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3533 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f576d465aba RSP: 002b:00007f576b8e2e78 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f576b8e2f00 RCX: 00007f576d465aba RDX: 000000002001f680 RSI: 000000002001f6c0 RDI: 00007f576b8e2ec0 RBP: 000000002001f680 R08: 00007f576b8e2f00 R09: 0000000000800009 R10: 0000000000800009 R11: 0000000000000202 R12: 000000002001f6c0 R13: 00007f576b8e2ec0 R14: 000000000001f749 R15: 000000002001f700 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 1 lock held by udevd/3026: #0: ffff88801b51d918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x14d/0xa50 block/bdev.c:817 2 locks held by getty/3332: #0: ffff88802474f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252 #1: ffffc90002bab2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158 2 locks held by kworker/1:5/3612: #0: ffff888011c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90002ee7d20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 6 locks held by kworker/u4:8/3881: #0: ffff888011dd5138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc9000130fd20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffffffff8da24d10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf1/0xb60 net/core/net_namespace.c:561 #3: ffffffff8da55f68 (devlink_mutex){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0xb1/0x350 net/core/devlink.c:11534 #4: ffff88801e512658 (&nsim_bus_dev->nsim_bus_reload_lock){+.+.}-{3:3}, at: nsim_dev_reload_up+0xbe/0x970 drivers/net/netdevsim/dev.c:897 #5: ffffffff8da308c8 (rtnl_mutex){+.+.}-{3:3}, at: register_nexthop_notifier+0x80/0x270 net/ipv4/nexthop.c:3606 3 locks held by kworker/u4:13/4420: 2 locks held by kworker/0:8/5326: #0: ffff888011c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90002d07d20 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 2 locks held by kworker/0:10/5328: #0: ffff888146145538 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc900030e7d20 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 1 lock held by syz.2.466/5455: #0: ffff88807e23e0e0 (&type->s_umount_key#61/1){+.+.}-{3:3}, at: alloc_super+0x210/0x940 fs/super.c:229 3 locks held by syz-executor/5569: #0: ffff88807b9ecff0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x63/0x1070 net/bluetooth/hci_core.c:1737 #1: ffff88807b9ec078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_do_close+0x431/0x1070 net/bluetooth/hci_core.c:1782 #2: ffffffff8c9240e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #2: ffffffff8c9240e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x350/0x740 kernel/rcu/tree_exp.h:845 3 locks held by kworker/1:18/6773: #0: ffff888011c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90003e2fd20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffffffff8da308c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:251 3 locks held by syz.0.978/7890: #0: ffff8880552acff0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x63/0x1070 net/bluetooth/hci_core.c:1737 #1: ffff8880552ac078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_do_close+0x431/0x1070 net/bluetooth/hci_core.c:1782 #2: ffffffff8db79ea8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1522 [inline] #2: ffffffff8db79ea8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x220 net/bluetooth/hci_conn.c:1622 1 lock held by syz.3.979/7892: #0: ffffffff8c9240e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #0: ffffffff8c9240e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x350/0x740 kernel/rcu/tree_exp.h:845 2 locks held by syz-executor/7896: #0: ffffffff8da24d10 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x378/0x5d0 net/core/net_namespace.c:472 #1: ffffffff8da308c8 (rtnl_mutex){+.+.}-{3:3}, at: register_nexthop_notifier+0x80/0x270 net/ipv4/nexthop.c:3606 3 locks held by syz.4.982/7901: #0: ffff88807ae58ff0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x63/0x1070 net/bluetooth/hci_core.c:1737 #1: ffff88807ae58078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_do_close+0x431/0x1070 net/bluetooth/hci_core.c:1782 #2: ffffffff8db79ea8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1522 [inline] #2: ffffffff8db79ea8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x220 net/bluetooth/hci_conn.c:1622 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.164-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xe72/0xeb0 kernel/hung_task.c:295 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7892 Comm: syz.3.979 Not tainted 5.15.164-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:memset+0x23/0x40 mm/kasan/shadow.c:47 Code: 00 00 e9 50 ef ff ff 55 41 56 53 48 89 d3 41 89 f6 48 89 fd 48 8b 4c 24 18 48 89 d6 ba 01 00 00 00 e8 31 ef ff ff 84 c0 74 12 <48> 89 ef 44 89 f6 48 89 da 5b 41 5e 5d e9 9b 6b 67 02 31 c0 5b 41 RSP: 0018:ffffc90000dd0668 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000010 RCX: ffffffff813893b8 RDX: 0000000000000001 RSI: 0000000000000010 RDI: ffffc90000dd0790 RBP: ffffc90000dd0790 R08: dffffc0000000000 R09: fffff520001ba0f4 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1cd4b76 R13: 1ffffffff1cd4b76 R14: 0000000000000000 R15: ffffc90000dd0740 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f45d12df20 CR3: 000000007daf7000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unwind_next_frame+0xbc8/0x1fa0 arch/x86/kernel/unwind_orc.c:547 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x80 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kmem_cache_free+0x91/0x1f0 mm/slub.c:3515 rcu_do_batch kernel/rcu/tree.c:2523 [inline] rcu_core+0xa15/0x1650 kernel/rcu/tree.c:2763 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline] RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:331 [inline] RIP: 0010:rcu_is_watching+0x56/0xa0 kernel/rcu/tree.c:1123 Code: f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 d0 1c 5f 00 48 c7 c3 08 b3 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 75 1a 8b 03 65 ff 0d 35 57 97 7e 74 08 24 01 5b 41 5e 41 5f RSP: 0018:ffffc90002f27040 EFLAGS: 00000a02 RAX: 0000000000000000 RBX: ffff8880b9b3b308 RCX: ffffffff8162ad0c RDX: 0000000000000000 RSI: ffffffff8ad8f7e0 RDI: ffffffff8ad8f7a0 RBP: ffffc90002f271c0 R08: dffffc0000000000 R09: fffffbfff1bd2986 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920005e4e14 R13: dffffc0000000000 R14: ffffffff8c3b2808 R15: dffffc0000000000 trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0xdd/0x4f0 kernel/locking/lockdep.c:5594 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:312 rcu_read_lock include/linux/rcupdate.h:739 [inline] is_bpf_text_address+0x1d/0x260 kernel/bpf/core.c:721 kernel_text_address kernel/extable.c:151 [inline] __kernel_text_address+0x94/0x100 kernel/extable.c:105 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x80 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kmem_cache_free+0x91/0x1f0 mm/slub.c:3515 merge_or_add_vmap_area mm/vmalloc.c:1111 [inline] merge_or_add_vmap_area_augment mm/vmalloc.c:1161 [inline] __purge_vmap_area_lazy+0x548/0x1740 mm/vmalloc.c:1697 try_purge_vmap_area_lazy+0x34/0x50 mm/vmalloc.c:1723 free_unmap_vmap_area mm/vmalloc.c:1778 [inline] remove_vm_area+0x1ae/0x1d0 mm/vmalloc.c:2517 vm_remove_mappings mm/vmalloc.c:2546 [inline] __vunmap+0x325/0xa20 mm/vmalloc.c:2611 kcov_put kernel/kcov.c:408 [inline] kcov_close+0x27/0x50 kernel/kcov.c:510 __fput+0x3fe/0x8e0 fs/file_table.c:280 task_work_run+0x129/0x1a0 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0x6a3/0x2480 kernel/exit.c:874 do_group_exit+0x144/0x310 kernel/exit.c:996 get_signal+0xc66/0x14e0 kernel/signal.c:2889 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:154 [inline] exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f33299d304a Code: Unable to access opcode bytes at RIP 0x7f33299d3020. RSP: 002b:00007f3327e52e60 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 00007f3327e52f00 RCX: 00007f33299d304a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007 RBP: 0000000020000100 R08: 0000000000000000 R09: 0000000000001262 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000020000640 R13: 00007f3327e52ec0 R14: 0000000000001268 R15: 0000000020000080