INFO: task kworker/1:2:781 blocked for more than 143 seconds. Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:23088 pid:781 tgid:781 ppid:2 flags:0x00004000 Workqueue: events_long flush_old_commits Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x1961/0x4ab0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x149/0x260 kernel/sched/core.c:6778 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747 reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 reiserfs_sync_fs fs/reiserfs/super.c:76 [inline] flush_old_commits+0x1e3/0x2f0 fs/reiserfs/super.c:111 process_one_work kernel/workqueue.c:2630 [inline] process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2703 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2784 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 INFO: task syz-executor.0:21072 blocked for more than 144 seconds. Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:24016 pid:21072 tgid:21071 ppid:5089 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x1961/0x4ab0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x149/0x260 kernel/sched/core.c:6778 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747 reiserfs_write_lock_nested+0x5f/0xd0 fs/reiserfs/lock.c:78 let_transaction_grow fs/reiserfs/journal.c:3004 [inline] __commit_trans_jl fs/reiserfs/journal.c:3860 [inline] reiserfs_commit_for_inode+0x39b/0x9e0 fs/reiserfs/journal.c:3921 reiserfs_sync_file+0x124/0x270 fs/reiserfs/file.c:159 generic_write_sync include/linux/fs.h:2653 [inline] generic_file_write_iter+0x2a1/0x310 mm/filemap.c:4043 call_write_iter include/linux/fs.h:2020 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x792/0xb20 fs/read_write.c:584 ksys_write+0x1a0/0x2c0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fdf2147cae9 RSP: 002b:00007fdf1fffe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fdf2159bf80 RCX: 00007fdf2147cae9 RDX: 0000000000000012 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 00007fdf214c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fdf2159bf80 R15: 00007ffef7e15e88 INFO: task syz-executor.0:21107 blocked for more than 144 seconds. Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:28016 pid:21107 tgid:21071 ppid:5089 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x1961/0x4ab0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x149/0x260 kernel/sched/core.c:6778 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835 rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178 __down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306 inode_lock include/linux/fs.h:802 [inline] process_measurement+0x450/0x21c0 security/integrity/ima/ima_main.c:248 ima_file_mmap+0x13c/0x2b0 security/integrity/ima/ima_main.c:442 vm_mmap_pgoff+0x148/0x420 mm/util.c:552 ksys_mmap_pgoff+0x4ff/0x6d0 mm/mmap.c:1425 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fdf2147cae9 RSP: 002b:00007fdf1ffbc0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fdf2159c120 RCX: 00007fdf2147cae9 RDX: 0000000002000005 RSI: 0000000000400000 RDI: 0000000020000000 RBP: 00007fdf214c847a R08: 0000000000000006 R09: 0000000000000000 R10: 0000000000010012 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fdf2159c120 R15: 00007ffef7e15e88 INFO: task syz-executor.2:21131 blocked for more than 145 seconds. Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:24816 pid:21131 tgid:21129 ppid:5091 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x1961/0x4ab0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x149/0x260 kernel/sched/core.c:6778 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747 reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 reiserfs_sync_fs+0xa0/0x150 fs/reiserfs/super.c:76 iterate_supers+0xc2/0x180 fs/super.c:971 ksys_sync+0xcc/0x1c0 fs/sync.c:103 __do_sys_sync+0xe/0x20 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f976167cae9 RSP: 002b:00007f97624520c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f976179bf80 RCX: 00007f976167cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f97616c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f976179bf80 R15: 00007ffd07e9f6c8 INFO: task syz-executor.2:21186 blocked for more than 145 seconds. Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:28496 pid:21186 tgid:21129 ppid:5091 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x1961/0x4ab0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x149/0x260 kernel/sched/core.c:6778 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:747 reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 reiserfs_sync_fs+0xa0/0x150 fs/reiserfs/super.c:76 iterate_supers+0xc2/0x180 fs/super.c:971 ksys_sync+0xcc/0x1c0 fs/sync.c:103 __do_sys_sync+0xe/0x20 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f976167cae9 RSP: 002b:00007f97624310c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f976179c050 RCX: 00007f976167cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f97616c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f976179c050 R15: 00007ffd07e9f6c8 Showing all locks held in the system: 2 locks held by kworker/1:0/23: 1 lock held by khungtaskd/29: #0: ffffffff8d92cf60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline] ffffffff8d92cf60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline] ffffffff8d92cf60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 4 locks held by kworker/1:2/781: #0: ffff888012c71538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline] #0: ffff888012c71538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703 #1: ffffc9000355fd20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline] #1: ffffc9000355fd20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703 #2: ffff88803b8960e0 (&type->s_umount_key#24){++++}-{3:3}, at: flush_old_commits+0xcb/0x2f0 fs/reiserfs/super.c:97 #3: ffff888039a29090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 2 locks held by kworker/0:3/4801: #0: ffff888012c72938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline] #0: ffff888012c72938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703 #1: ffffc90003c1fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline] #1: ffffc90003c1fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2703 2 locks held by getty/4812: #0: ffff88814b2ba0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201 1 lock held by syz-executor.5/5090: 1 lock held by syz-executor.1/5113: #0: ffffffff8d932938 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline] #0: ffffffff8d932938 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:996 4 locks held by syz-executor.0/21072: #0: ffff888018b5d4c8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x2b0/0x340 fs/file.c:1177 #1: ffff88803b896418 (sb_writers#18){.+.+}-{0:0}, at: vfs_write+0x223/0xb20 fs/read_write.c:580 #2: ffff88803ea43140 (&sb->s_type->i_mutex_key#24){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline] #2: ffff88803ea43140 (&sb->s_type->i_mutex_key#24){+.+.}-{3:3}, at: reiserfs_sync_file+0x98/0x270 fs/reiserfs/file.c:155 #3: ffff888039a29090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock_nested+0x5f/0xd0 fs/reiserfs/lock.c:78 8 locks held by syz-executor.0/21100: 1 lock held by syz-executor.0/21107: #0: ffff88803ae6a400 (&sb->s_type->i_mutex_key#24){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline] #0: ffff88803ae6a400 (&sb->s_type->i_mutex_key#24){+.+.}-{3:3}, at: process_measurement+0x450/0x21c0 security/integrity/ima/ima_main.c:248 2 locks held by syz-executor.2/21131: #0: ffff88803b8960e0 (&type->s_umount_key#24){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff88803b8960e0 (&type->s_umount_key#24){++++}-{3:3}, at: super_lock+0x176/0x3a0 fs/super.c:117 #1: ffff888039a29090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 2 locks held by syz-executor.2/21186: #0: ffff88803b8960e0 (&type->s_umount_key#24){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff88803b8960e0 (&type->s_umount_key#24){++++}-{3:3}, at: super_lock+0x176/0x3a0 fs/super.c:117 #1: ffff888039a29090 ( &sbi->lock ){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 2 locks held by syz-executor.3/23487: #0: ffff88803b8960e0 (&type->s_umount_key#24){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff88803b8960e0 (&type->s_umount_key#24){++++}-{3:3}, at: super_lock+0x176/0x3a0 fs/super.c:117 #1: ffff888039a29090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xfaf/0xff0 kernel/hung_task.c:379 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 48 Comm: kworker/u4:3 Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Workqueue: bat_events batadv_nc_worker RIP: 0010:kasan_check_range+0x1b8/0x290 mm/kasan/generic.c:187 Code: 4d 01 fb 48 8d 5d 07 48 85 ed 48 0f 49 dd 48 83 e3 f8 48 29 dd 74 12 41 80 3b 00 0f 85 a2 00 00 00 49 ff c3 48 ff cd 75 ee 5b <41> 5c 41 5e 41 5f 5d c3 40 84 ed 75 5f f7 c5 00 ff 00 00 75 5c f7 RSP: 0018:ffffc90000b8fa38 EFLAGS: 00000256 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff816d4bc0 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8f00b8e8 RBP: 0000000000000000 R08: ffffffff8f00b8ef R09: 1ffffffff1e0171d R10: dffffc0000000000 R11: fffffbfff1e0171e R12: 1ffff92000171f58 R13: ffffffff8ae5b1bb R14: dffffc0000000001 R15: fffffbfff1e0171e FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff351ebfc0 CR3: 0000000034699000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] cpumask_test_cpu include/linux/cpumask.h:504 [inline] cpu_online include/linux/cpumask.h:1104 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0xb0/0x9c0 kernel/locking/lockdep.c:5765 rcu_lock_release include/linux/rcupdate.h:306 [inline] rcu_read_unlock include/linux/rcupdate.h:780 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline] batadv_nc_worker+0x290/0x610 net/batman-adv/network-coding.c:719 process_one_work kernel/workqueue.c:2630 [inline] process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2703 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2784 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242