INFO: task syz-executor.4:13679 blocked for more than 143 seconds. Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:26824 pid:13679 ppid:5123 flags:0x20004004 Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xcce/0x5b20 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 io_schedule+0xbe/0x130 kernel/sched/core.c:8884 folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301 folio_lock include/linux/pagemap.h:952 [inline] write_cache_pages+0x5e5/0xe70 mm/page-writeback.c:2440 fuse_writepages+0x29f/0x410 fs/fuse/file.c:2309 do_writepages+0x1a8/0x640 mm/page-writeback.c:2551 __writeback_single_inode+0x159/0x14d0 fs/fs-writeback.c:1600 writeback_single_inode+0x2ad/0x590 fs/fs-writeback.c:1721 write_inode_now+0x16e/0x1e0 fs/fs-writeback.c:2757 fuse_flush+0x24f/0x6b0 fs/fuse/file.c:496 filp_close+0xb8/0x1a0 fs/open.c:1423 close_fd+0x7a/0xa0 fs/file.c:664 __do_sys_close fs/open.c:1442 [inline] __se_sys_close fs/open.c:1440 [inline] __ia32_sys_close+0x33/0xa0 fs/open.c:1440 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fcd579 RSP: 002b:00000000f749fb10 EFLAGS: 00000286 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 00000000f734d000 RDI: 0000000000098fdf RBP: 00000000f737c0c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.4:13680 blocked for more than 144 seconds. Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:26064 pid:13680 ppid:5123 flags:0x20004004 Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xcce/0x5b20 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 io_schedule+0xbe/0x130 kernel/sched/core.c:8884 folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301 folio_lock include/linux/pagemap.h:952 [inline] write_cache_pages+0x5e5/0xe70 mm/page-writeback.c:2440 fuse_writepages+0x29f/0x410 fs/fuse/file.c:2309 do_writepages+0x1a8/0x640 mm/page-writeback.c:2551 filemap_fdatawrite_wbc mm/filemap.c:390 [inline] filemap_fdatawrite_wbc+0x147/0x1b0 mm/filemap.c:380 __filemap_fdatawrite_range+0xb8/0xf0 mm/filemap.c:423 file_write_and_wait_range+0xce/0x140 mm/filemap.c:781 fuse_fsync+0x14b/0x340 fs/fuse/file.c:575 vfs_fsync_range+0x13e/0x230 fs/sync.c:188 generic_write_sync include/linux/fs.h:2452 [inline] generic_file_write_iter+0x25a/0x350 mm/filemap.c:4090 fuse_cache_write_iter fs/fuse/file.c:1322 [inline] fuse_file_write_iter+0x4d6/0xbf0 fs/fuse/file.c:1658 call_write_iter include/linux/fs.h:1851 [inline] aio_write+0x34a/0x7c0 fs/aio.c:1604 __io_submit_one fs/aio.c:1976 [inline] io_submit_one+0xf42/0x1d10 fs/aio.c:2023 __do_compat_sys_io_submit fs/aio.c:2124 [inline] __se_compat_sys_io_submit fs/aio.c:2094 [inline] __ia32_compat_sys_io_submit+0x19b/0x370 fs/aio.c:2094 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fcd579 RSP: 002b:00000000f7fc85cc EFLAGS: 00000296 ORIG_RAX: 00000000000000f8 RAX: ffffffffffffffda RBX: 00000000f7f7e000 RCX: 0000000020001781 RDX: 0000000020000700 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.2:13693 blocked for more than 145 seconds. Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27832 pid:13693 ppid:5124 flags:0x20004000 Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xcce/0x5b20 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 io_schedule+0xbe/0x130 kernel/sched/core.c:8884 migration_entry_wait_on_locked+0x7c9/0xc50 mm/filemap.c:1428 __migration_entry_wait+0x179/0x1a0 mm/migrate.c:320 do_swap_page+0x275c/0x3600 mm/memory.c:3690 handle_pte_fault mm/memory.c:4913 [inline] __handle_mm_fault+0x1623/0x3e60 mm/memory.c:5051 handle_mm_fault+0x2ba/0x9c0 mm/memory.c:5197 do_user_addr_fault+0x475/0x1230 arch/x86/mm/fault.c:1407 handle_page_fault arch/x86/mm/fault.c:1498 [inline] exc_page_fault+0x98/0x170 arch/x86/mm/fault.c:1554 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0010:__get_user_4+0x20/0x30 arch/x86/lib/getuser.S:85 Code: 01 ca c3 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 ba fd ef ff ff ff 7f 00 00 48 39 d0 0f 83 cc 00 00 00 48 19 d2 48 21 d0 0f 01 cb <8b> 10 31 c0 0f 01 ca c3 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 ba RSP: 0018:ffffc90005037b38 EFLAGS: 00050202 RAX: 00000000f5bddbb0 RBX: 00000000f5bddbb0 RCX: 0000000000000000 RDX: ffffffffffffffff RSI: ffffffff81789abb RDI: 0000000000000000 RBP: ffff88807741cdf8 R08: 0000000000000001 R09: ffffffff8e784c57 R10: fffffbfff1cf098a R11: 0000000000000000 R12: ffff88807741cd48 R13: ffff88807741cd68 R14: 0000000000000000 R15: 0000000000000000 compat_fetch_robust_entry kernel/futex/core.c:852 [inline] compat_exit_robust_list+0x68/0x2c0 kernel/futex/core.c:881 futex_cleanup kernel/futex/core.c:1024 [inline] futex_exit_release+0x14f/0x220 kernel/futex/core.c:1119 exit_mm_release+0x1a/0x30 kernel/fork.c:1515 exit_mm kernel/exit.c:535 [inline] do_exit+0x891/0x2a40 kernel/exit.c:856 do_group_exit+0xd4/0x2a0 kernel/exit.c:1019 get_signal+0x2315/0x25b0 kernel/signal.c:2859 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296 __do_fast_syscall_32+0x72/0xf0 arch/x86/entry/common.c:181 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f02579 RSP: 002b:00000000f5bdd67c EFLAGS: 00000296 ORIG_RAX: 00000000000000f0 RAX: fffffffffffffe00 RBX: 00000000f737b160 RCX: 0000000000000080 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000f737b164 RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.1:13691 blocked for more than 146 seconds. Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:26648 pid:13691 ppid:5122 flags:0x20004004 Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xcce/0x5b20 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 io_schedule+0xbe/0x130 kernel/sched/core.c:8884 folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301 folio_lock include/linux/pagemap.h:952 [inline] write_cache_pages+0x5e5/0xe70 mm/page-writeback.c:2440 fuse_writepages+0x29f/0x410 fs/fuse/file.c:2309 do_writepages+0x1a8/0x640 mm/page-writeback.c:2551 __writeback_single_inode+0x159/0x14d0 fs/fs-writeback.c:1600 writeback_single_inode+0x2ad/0x590 fs/fs-writeback.c:1721 write_inode_now+0x16e/0x1e0 fs/fs-writeback.c:2757 fuse_flush+0x24f/0x6b0 fs/fuse/file.c:496 filp_close+0xb8/0x1a0 fs/open.c:1423 close_fd+0x7a/0xa0 fs/file.c:664 __do_sys_close fs/open.c:1442 [inline] __se_sys_close fs/open.c:1440 [inline] __ia32_sys_close+0x33/0xa0 fs/open.c:1440 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fec579 RSP: 002b:00000000f749fb10 EFLAGS: 00000286 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 00000000f734d000 RDI: 000000000009914d RBP: 00000000f737c0c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.1:13692 blocked for more than 147 seconds. Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:26792 pid:13692 ppid:5122 flags:0x20004004 Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xcce/0x5b20 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 io_schedule+0xbe/0x130 kernel/sched/core.c:8884 folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301 folio_lock include/linux/pagemap.h:952 [inline] write_cache_pages+0x5e5/0xe70 mm/page-writeback.c:2440 fuse_writepages+0x29f/0x410 fs/fuse/file.c:2309 do_writepages+0x1a8/0x640 mm/page-writeback.c:2551 filemap_fdatawrite_wbc mm/filemap.c:390 [inline] filemap_fdatawrite_wbc+0x147/0x1b0 mm/filemap.c:380 __filemap_fdatawrite_range+0xb8/0xf0 mm/filemap.c:423 file_write_and_wait_range+0xce/0x140 mm/filemap.c:781 fuse_fsync+0x14b/0x340 fs/fuse/file.c:575 vfs_fsync_range+0x13e/0x230 fs/sync.c:188 generic_write_sync include/linux/fs.h:2452 [inline] generic_file_write_iter+0x25a/0x350 mm/filemap.c:4090 fuse_cache_write_iter fs/fuse/file.c:1322 [inline] fuse_file_write_iter+0x4d6/0xbf0 fs/fuse/file.c:1658 call_write_iter include/linux/fs.h:1851 [inline] aio_write+0x34a/0x7c0 fs/aio.c:1604 __io_submit_one fs/aio.c:1976 [inline] io_submit_one+0xf42/0x1d10 fs/aio.c:2023 __do_compat_sys_io_submit fs/aio.c:2124 [inline] __se_compat_sys_io_submit fs/aio.c:2094 [inline] __ia32_compat_sys_io_submit+0x19b/0x370 fs/aio.c:2094 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fec579 RSP: 002b:00000000f7fe75cc EFLAGS: 00000296 ORIG_RAX: 00000000000000f8 RAX: ffffffffffffffda RBX: 00000000f7f9d000 RCX: 0000000020001781 RDX: 0000000020000700 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.5:13697 blocked for more than 147 seconds. Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:28136 pid:13697 ppid:5121 flags:0x20000004 Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xcce/0x5b20 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 io_schedule+0xbe/0x130 kernel/sched/core.c:8884 migration_entry_wait_on_locked+0x7c9/0xc50 mm/filemap.c:1428 __migration_entry_wait+0x179/0x1a0 mm/migrate.c:320 do_swap_page+0x275c/0x3600 mm/memory.c:3690 handle_pte_fault mm/memory.c:4913 [inline] __handle_mm_fault+0x1623/0x3e60 mm/memory.c:5051 handle_mm_fault+0x2ba/0x9c0 mm/memory.c:5197 do_user_addr_fault+0x475/0x1230 arch/x86/mm/fault.c:1407 handle_page_fault arch/x86/mm/fault.c:1498 [inline] exc_page_fault+0x98/0x170 arch/x86/mm/fault.c:1554 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0023:0xf721cd0b RSP: 002b:00000000f749fb10 EFLAGS: 00010282 RAX: 0000000032629bd4 RBX: 0000000032629bd0 RCX: 000000003262e410 RDX: 00000000f734d000 RSI: 00000000f734d000 RDI: 00000000000993fa RBP: 00000000f737b0b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.3:13703 blocked for more than 147 seconds. Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:25992 pid:13703 ppid:5120 flags:0x20004004 Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xcce/0x5b20 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 io_schedule+0xbe/0x130 kernel/sched/core.c:8884 folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301 folio_wait_writeback+0x47/0x3b0 mm/page-writeback.c:3127 migrate_folio_unmap mm/migrate.c:1192 [inline] migrate_pages_batch+0x1281/0x3660 mm/migrate.c:1685 migrate_pages+0x1b73/0x2300 mm/migrate.c:1973 compact_zone+0x1d3c/0x3ea0 mm/compaction.c:2420 compact_node+0x12a/0x1c0 mm/compaction.c:2717 compact_nodes mm/compaction.c:2730 [inline] sysctl_compaction_handler+0x117/0x160 mm/compaction.c:2774 proc_sys_call_handler+0x49c/0x6d0 fs/proc/proc_sysctl.c:604 call_write_iter include/linux/fs.h:1851 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x9ed/0xe10 fs/read_write.c:584 ksys_write+0x12b/0x250 fs/read_write.c:637 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f5e579 RSP: 002b:00000000f7f595cc EFLAGS: 00000296 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.0:13706 blocked for more than 148 seconds. Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:26048 pid:13706 ppid:5113 flags:0x20004004 Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xcce/0x5b20 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 io_schedule+0xbe/0x130 kernel/sched/core.c:8884 folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301 folio_wait_writeback+0x47/0x3b0 mm/page-writeback.c:3127 migrate_folio_unmap mm/migrate.c:1192 [inline] migrate_pages_batch+0x1281/0x3660 mm/migrate.c:1685 migrate_pages+0x1b73/0x2300 mm/migrate.c:1973 compact_zone+0x1d3c/0x3ea0 mm/compaction.c:2420 compact_node+0x12a/0x1c0 mm/compaction.c:2717 compact_nodes mm/compaction.c:2730 [inline] sysctl_compaction_handler+0x117/0x160 mm/compaction.c:2774 proc_sys_call_handler+0x49c/0x6d0 fs/proc/proc_sysctl.c:604 call_write_iter include/linux/fs.h:1851 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x9ed/0xe10 fs/read_write.c:584 ksys_write+0x12b/0x250 fs/read_write.c:637 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f8a579 RSP: 002b:00000000f7f855cc EFLAGS: 00000296 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8c796830 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510 1 lock held by rcu_tasks_trace/13: #0: ffffffff8c796530 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510 1 lock held by khungtaskd/28: #0: ffffffff8c797380 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6495 2 locks held by kworker/u4:2/41: #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361 #1: ffffc90000b27da8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365 2 locks held by kworker/u4:6/2811: #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888145044138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361 #1: ffffc9000d0efda8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365 2 locks held by getty/4764: #0: ffff88802c30a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177 5 locks held by kworker/0:6/5165: #0: ffff8881451ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8881451ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8881451ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8881451ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff8881451ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff8881451ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361 #1: ffffc90004f07da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365 #2: ffff888022445190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #2: ffff888022445190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c0/0x4e40 drivers/usb/core/hub.c:5739 #3: ffff888146e034f8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3147 [inline] #3: ffff888146e034f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5303 [inline] #3: ffff888146e034f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5551 [inline] #3: ffff888146e034f8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5711 [inline] #3: ffff888146e034f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x278e/0x4e40 drivers/usb/core/hub.c:5793 #4: ffff888146e38168 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5304 [inline] #4: ffff888146e38168 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5551 [inline] #4: ffff888146e38168 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5711 [inline] #4: ffff888146e38168 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x27c3/0x4e40 drivers/usb/core/hub.c:5793 3 locks held by kworker/0:8/5167: #0: ffff888027950538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888027950538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888027950538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888027950538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888027950538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888027950538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361 #1: ffffc90004f27da8 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365 #2: ffffffff8e104248 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa7/0x1390 net/ipv6/addrconf.c:4088 1 lock held by syz-executor.4/13680: #0: ffff88804ea71590 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff88804ea71590 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: fuse_fsync+0x13d/0x340 fs/fuse/file.c:568 2 locks held by syz-executor.2/13693: #0: ffff88807741cdd0 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_cleanup_begin kernel/futex/core.c:1066 [inline] #0: ffff88807741cdd0 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_exit_release+0x2a/0x220 kernel/futex/core.c:1118 #1: ffff88801246cb98 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #1: ffff88801246cb98 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1230 arch/x86/mm/fault.c:1348 1 lock held by syz-executor.1/13692: #0: ffff88804ebce690 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff88804ebce690 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: fuse_fsync+0x13d/0x340 fs/fuse/file.c:568 1 lock held by syz-executor.5/13697: #0: ffff8880821c0198 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #0: ffff8880821c0198 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1230 arch/x86/mm/fault.c:1348 2 locks held by syz-executor.3/13703: #0: ffff88802733cae8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe7/0x100 fs/file.c:1046 #1: ffff8880206c0460 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:637 2 locks held by syz-executor.0/13706: #0: ffff88802733d268 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe7/0x100 fs/file.c:1046 #1: ffff88802389e460 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:637 2 locks held by kworker/0:1/13778: #0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361 #1: ffffc9000681fda8 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365 1 lock held by syz-executor.0/15270: #0: ffffffff8c7a2540 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6d0 kernel/rcu/tree.c:3945 2 locks held by syz-executor.2/15280: #0: ffffffff8e104248 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline] #0: ffffffff8e104248 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6171 #1: ffffffff8c7a2678 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline] #1: ffffffff8c7a2678 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:989 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 nmi_cpu_backtrace+0x316/0x3e0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x33f/0x460 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xe94/0x11e0 kernel/hung_task.c:379 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:122 [inline] RIP: 0010:lock_is_held_type+0x46/0x140 kernel/locking/lockdep.c:5705 Code: 61 04 85 c9 0f 84 d9 00 00 00 65 8b 05 73 8f eb 75 85 c0 0f 85 ca 00 00 00 65 4c 8b 24 25 80 b8 03 00 41 8b 94 24 34 0a 00 00 <85> d2 0f 85 b1 00 00 00 48 89 fd 41 89 f6 9c 8f 04 24 fa 48 c7 c7 RSP: 0018:ffffc900001e0bd0 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 1ffff9200003c187 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8c7972c0 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8e784c57 R10: fffffbfff1cf098a R11: 0000000000000000 R12: ffff8880172a9d40 R13: 00000000ffffffff R14: ffff888020b643f0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020503000 CR3: 00000000326fc000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_is_held include/linux/lockdep.h:283 [inline] rcu_read_lock_sched_held+0x3e/0x70 kernel/rcu/update.c:125 trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x537/0x670 kernel/locking/lockdep.c:5640 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162 try_to_wake_up+0xae/0x1fd0 kernel/sched/core.c:4159 hrtimer_wakeup+0x47/0x60 kernel/time/hrtimer.c:1939 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x690/0x1010 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x320/0x7b0 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline] __sysvec_apic_timer_interrupt+0x180/0x660 arch/x86/kernel/apic/apic.c:1113 sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline] RIP: 0010:acpi_safe_halt+0x40/0x50 drivers/acpi/processor_idle.c:113 Code: eb 03 83 e3 01 89 de 0f 1f 44 00 00 84 db 75 1b 0f 1f 44 00 00 66 90 0f 1f 44 00 00 0f 00 2d 47 f4 9a 00 0f 1f 44 00 00 fb f4 5b c3 cc 0f 1f 00 66 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 0f RSP: 0018:ffffc90000177d10 EFLAGS: 00000246 RAX: ffff8880172a9d40 RBX: 0000000000000000 RCX: ffffffff8a1704a5 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888145109864 R08: 0000000000000001 R09: ffff8880b9936cab R10: ffffed1017326d95 R11: 1ffffffff1822d21 R12: 0000000000000001 R13: ffff888145109800 R14: ffff888145109864 R15: 0000000000000000 acpi_idle_do_entry+0x53/0x70 drivers/acpi/processor_idle.c:573 acpi_idle_enter+0x173/0x290 drivers/acpi/processor_idle.c:711 cpuidle_enter_state+0xd3/0x6f0 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388 cpuidle_idle_call kernel/sched/idle.c:215 [inline] do_idle+0x348/0x440 kernel/sched/idle.c:282 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379 start_secondary+0x256/0x300 arch/x86/kernel/smpboot.c:264 secondary_startup_64_no_verify+0xce/0xdb