INFO: task udevd:4431 blocked for more than 143 seconds. Not tainted 6.2.0-syzkaller-12485-gf3a2439f20d9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:25712 pid:4431 ppid:1 flags:0x00000000 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: 0033:0x7f819d6c2e0f RSP: 002b:00007ffdb1c9b490 EFLAGS: 00010246 RAX: 000055fcb2071a40 RBX: 0000000000008030 RCX: 000055fcb2069a00 RDX: 00007f819d7f5a60 RSI: 000000007f230a2a RDI: 000055fcb2069a00 RBP: 0000000000008040 R08: 0000000000000003 R09: 00007f819d7f5a60 R10: 0000000001000000 R11: 0000000000000000 R12: 00007f819d7f5a00 R13: 000000000000abd0 R14: 0000000000002b90 R15: 000055fcb2069a00 INFO: task kworker/0:5:5169 blocked for more than 143 seconds. Not tainted 6.2.0-syzkaller-12485-gf3a2439f20d9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:5 state:D stack:25624 pid:5169 ppid:2 flags:0x00004000 Workqueue: events_long delayed_sync_fs 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 do_writepages+0x2b1/0x640 mm/page-writeback.c:2556 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 filemap_write_and_wait_range mm/filemap.c:678 [inline] filemap_write_and_wait_range+0xa1/0x120 mm/filemap.c:669 filemap_write_and_wait include/linux/pagemap.h:60 [inline] hfsplus_sync_fs+0x190/0xb10 fs/hfsplus/super.c:197 delayed_sync_fs+0x9f/0xf0 fs/hfsplus/super.c:258 process_one_work+0x9bf/0x1820 kernel/workqueue.c:2390 worker_thread+0x669/0x1090 kernel/workqueue.c:2537 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task syz-executor.3:17019 blocked for more than 144 seconds. Not tainted 6.2.0-syzkaller-12485-gf3a2439f20d9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:24352 pid:17019 ppid:5099 flags:0x00004004 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 mpage_writepages+0xc6/0x170 fs/mpage.c:653 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 hfsplus_file_fsync+0xc3/0x5d0 fs/hfsplus/inode.c:313 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 call_write_iter include/linux/fs.h:1851 [inline] do_iter_readv_writev+0x20b/0x3b0 fs/read_write.c:735 do_iter_write+0x182/0x700 fs/read_write.c:861 vfs_writev+0x1aa/0x670 fs/read_write.c:934 do_pwritev+0x1b6/0x270 fs/read_write.c:1031 __do_sys_pwritev2 fs/read_write.c:1090 [inline] __se_sys_pwritev2 fs/read_write.c:1081 [inline] __x64_sys_pwritev2+0xef/0x150 fs/read_write.c:1081 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7ed508c0f9 RSP: 002b:00007f7ed5dbb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007f7ed51abf80 RCX: 00007f7ed508c0f9 RDX: 0000000000000001 RSI: 0000000020000680 RDI: 0000000000000004 RBP: 00007f7ed50e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000007400 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffde612c23f R14: 00007f7ed5dbb300 R15: 0000000000022000 INFO: task syz-executor.3:17022 blocked for more than 144 seconds. Not tainted 6.2.0-syzkaller-12485-gf3a2439f20d9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:27264 pid:17022 ppid:5099 flags:0x00004000 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_8+0x20/0x30 arch/x86/lib/getuser.S:100 Code: ca c3 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 ba f9 ef ff ff ff 7f 00 00 48 39 d0 0f 83 9c 00 00 00 48 19 d2 48 21 d0 0f 01 cb <48> 8b 10 31 c0 0f 01 ca c3 0f 1f 80 00 00 00 00 f3 0f 1e fa 0f 01 RSP: 0018:ffffc90008c2fb50 EFLAGS: 00050202 RAX: 00007f7ed5d9a9e0 RBX: 00007f7ed5d9a9e0 RCX: 0000000000000000 RDX: ffffffffffffffff RSI: ffffffff8177f9bd RDI: 0000000000000000 RBP: ffff88807d9293b8 R08: 0000000000000001 R09: ffffffff8e779717 R10: fffffbfff1cef2e2 R11: 0000000000000000 R12: ffff88807d929300 R13: ffff88807d929328 R14: 0000000000000000 R15: 0000000000000000 fetch_robust_entry kernel/futex/core.c:758 [inline] exit_robust_list+0x6a/0x2c0 kernel/futex/core.c:786 futex_cleanup kernel/futex/core.c:1018 [inline] futex_exit_release+0x187/0x220 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_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7ed508c0f9 RSP: 002b:00007f7ed5d9a218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f7ed51ac058 RCX: 00007f7ed508c0f9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7ed51ac058 RBP: 00007f7ed51ac050 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7ed51ac05c R13: 00007ffde612c23f R14: 00007f7ed5d9a300 R15: 0000000000022000 INFO: task syz-executor.0:17021 blocked for more than 145 seconds. Not tainted 6.2.0-syzkaller-12485-gf3a2439f20d9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:25968 pid:17021 ppid:5096 flags:0x00004004 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_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f707688c0f9 RSP: 002b:00007f707761c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f70769abf80 RCX: 00007f707688c0f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f70768e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff3e812fff R14: 00007f707761c300 R15: 0000000000022000 INFO: task syz-executor.4:17025 blocked for more than 145 seconds. Not tainted 6.2.0-syzkaller-12485-gf3a2439f20d9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:28488 pid:17025 ppid:5097 flags:0x00000004 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: 0033:0x7fbf1c237198 RSP: 002b:00007fffdcc51ba0 EFLAGS: 00010286 RAX: ffffffffffffffff RBX: 00007fbf1c3abf8c RCX: ffffffffffffffb8 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fbf1c3abf8c RBP: 00007fbf1c3abf80 R08: 00007fffdcd33080 R09: 0000000000000000 R10: 00007fffdcc51c80 R11: 0000000000000246 R12: 00000000000d422c R13: 00007fffdcc51c80 R14: 00007fffdcc51ca0 R15: 0000000000000032 INFO: task syz-executor.4:17026 blocked for more than 146 seconds. Not tainted 6.2.0-syzkaller-12485-gf3a2439f20d9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:28488 pid:17026 ppid:5097 flags:0x00000004 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: 0033:0x7fbf1c28c101 RSP: 002b:00007fbf1cfc0218 EFLAGS: 00010207 RAX: 0000000000000001 RBX: 00007fbf1c3abf88 RCX: 00007fbf1c28c0f9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fbf1c3abf8c RBP: 00007fbf1c3abf80 R08: 00007fffdcd33080 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbf1c3abf8c R13: 00007fffdcc51b1f R14: 00007fbf1cfc0300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/11: #0: ffffffff8c792830 (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/12: #0: ffffffff8c792530 (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/27: #0: ffffffff8c793380 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6495 1 lock held by udevd/4431: #0: ffff88807c7c3798 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #0: ffff88807c7c3798 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1230 arch/x86/mm/fault.c:1348 2 locks held by getty/4748: #0: ffff88802d27b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc900020182f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177 2 locks held by kworker/0:5/5169: #0: ffff888012476538 ((wq_completion)events_long){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888012476538 ((wq_completion)events_long){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888012476538 ((wq_completion)events_long){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888012476538 ((wq_completion)events_long){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888012476538 ((wq_completion)events_long){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888012476538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361 #1: ffffc9000446fda8 ((work_completion)(&(&sbi->sync_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365 4 locks held by kworker/u4:11/5742: #0: ffff888140059938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888140059938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888140059938 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888140059938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888140059938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888140059938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361 #1: ffffc900048efda8 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365 #2: ffffffff8e0e70d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9f/0xb10 net/core/net_namespace.c:575 #3: ffffffff8e0faa88 (rtnl_mutex){+.+.}-{3:3}, at: wg_netns_pre_exit+0x1b/0x210 drivers/net/wireguard/device.c:420 2 locks held by kworker/u4:15/5766: 3 locks held by kworker/u4:16/5767: #0: ffff888144f9c138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888144f9c138 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888144f9c138 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888144f9c138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888144f9c138 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888144f9c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361 #1: ffffc90004b47da8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365 #2: ffff88807ac780e0 (&type->s_umount_key#90){++++}-{3:3}, at: trylock_super+0x21/0x110 fs/super.c:414 2 locks held by kworker/0:9/9098: #0: ffff88801247a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff88801247a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff88801247a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff88801247a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff88801247a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff88801247a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x86d/0x1820 kernel/workqueue.c:2361 #1: ffffc9000487fda8 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1820 kernel/workqueue.c:2365 1 lock held by syz-executor.3/17019: #0: ffff88807ac78460 (sb_writers#26){.+.+}-{0:0}, at: do_pwritev+0x1b6/0x270 fs/read_write.c:1031 2 locks held by syz-executor.3/17022: #0: ffff88807d929390 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_cleanup_begin kernel/futex/core.c:1066 [inline] #0: ffff88807d929390 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_exit_release+0x2a/0x220 kernel/futex/core.c:1118 #1: ffff8880489a7598 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #1: ffff8880489a7598 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1230 arch/x86/mm/fault.c:1348 2 locks held by syz-executor.0/17021: #0: ffff88807db54e28 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe7/0x100 fs/file.c:1046 #1: ffff888028138460 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12b/0x250 fs/read_write.c:637 1 lock held by syz-executor.4/17025: #0: ffff888043b3eb98 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #0: ffff888043b3eb98 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1230 arch/x86/mm/fault.c:1348 1 lock held by syz-executor.4/17026: #0: ffff888043b3eb98 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #0: ffff888043b3eb98 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1230 arch/x86/mm/fault.c:1348 1 lock held by vhost-17026/17027: 2 locks held by syz-executor.2/19007: #0: ffffffff8e0e70d0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4cb/0x8e0 net/core/net_namespace.c:486 #1: ffffffff8e0faa88 (rtnl_mutex){+.+.}-{3:3}, at: tc_action_net_exit include/net/act_api.h:172 [inline] #1: ffffffff8e0faa88 (rtnl_mutex){+.+.}-{3:3}, at: police_exit_net+0x24/0x130 net/sched/act_police.c:514 3 locks held by syz-executor.0/19073: #0: ffffffff8e0e70d0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4cb/0x8e0 net/core/net_namespace.c:486 #1: ffffffff8e0faa88 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_delete_nets+0x94/0x3a0 net/ipv4/ip_tunnel.c:1121 #2: ffffffff8c79e678 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline] #2: ffffffff8c79e678 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:989 1 lock held by syz-executor.4/19109: #0: ffffffff8e0faa88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline] #0: ffffffff8e0faa88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6171 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.2.0-syzkaller-12485-gf3a2439f20d9 #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: 5162 Comm: kworker/1:7 Not tainted 6.2.0-syzkaller-12485-gf3a2439f20d9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Workqueue: events_power_efficient wg_ratelimiter_gc_entries RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:60 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:178 [inline] RIP: 0010:kasan_check_range+0x56/0x190 mm/kasan/generic.c:187 Code: 39 c7 0f 86 05 01 00 00 49 83 e9 01 48 89 fd 48 b8 00 00 00 00 00 fc ff df 4d 89 ca 48 c1 ed 03 49 c1 ea 03 48 01 c5 49 01 c2 <48> 89 e8 49 8d 5a 01 48 89 da 48 29 ea 48 83 fa 10 7e 63 41 89 eb RSP: 0018:ffffc9000414fc18 EFLAGS: 00000282 RAX: dffffc0000000000 RBX: 1ffff92000829f88 RCX: ffffffff8165e3d5 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8d603400 RBP: fffffbfff1ac0680 R08: 0000000000000001 R09: ffffffff8d603403 R10: fffffbfff1ac0680 R11: 0000000000000000 R12: ffffffff8d603408 R13: ffffffff8d603410 R14: ffff88801d6aa600 R15: 0000000000001406 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c000ebd000 CR3: 000000000c571000 CR4: 00000000003506e0 DR0: 00000000ffff070c DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: instrument_atomic_read_write include/linux/instrumented.h:102 [inline] atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:541 [inline] queued_spin_lock include/asm-generic/qspinlock.h:111 [inline] do_raw_spin_lock+0x115/0x2b0 kernel/locking/spinlock_debug.c:115 spin_lock include/linux/spinlock.h:350 [inline] wg_ratelimiter_gc_entries+0x61/0x430 drivers/net/wireguard/ratelimiter.c:63 process_one_work+0x9bf/0x1820 kernel/workqueue.c:2390 worker_thread+0x669/0x1090 kernel/workqueue.c:2537 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308