INFO: task syz-executor.5:10188 blocked for more than 143 seconds.
      Not tainted 6.5.0-rc4-next-20230804-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:25376 pid:10188 ppid:5093   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6711
 schedule+0xe7/0x1b0 kernel/sched/core.c:6787
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6846
 rwsem_down_write_slowpath+0x53e/0x1290 kernel/locking/rwsem.c:1178
 __down_write_common kernel/locking/rwsem.c:1306 [inline]
 __down_write kernel/locking/rwsem.c:1315 [inline]
 down_write+0x1d3/0x200 kernel/locking/rwsem.c:1574
 inode_lock include/linux/fs.h:802 [inline]
 btrfs_inode_lock+0xc4/0x100 fs/btrfs/inode.c:377
 btrfs_buffered_write+0x1ed/0x12d0 fs/btrfs/file.c:1184
 btrfs_do_write_iter+0x9ba/0x1060 fs/btrfs/file.c:1655
 call_write_iter include/linux/fs.h:1976 [inline]
 do_iter_readv_writev+0x21e/0x3c0 fs/read_write.c:735
 do_iter_write+0x17f/0x830 fs/read_write.c:860
 vfs_iter_write+0x7a/0xb0 fs/read_write.c:901
 iter_file_splice_write+0x698/0xbf0 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0x118/0x180 fs/splice.c:1144
 splice_direct_to_actor+0x347/0xa30 fs/splice.c:1090
 do_splice_direct+0x1af/0x280 fs/splice.c:1196
 do_sendfile+0xb88/0x1390 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 __x64_sys_sendfile64+0x1d6/0x220 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0c1de7cae9
RSP: 002b:00007f0c1eb1c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f0c1df9bf80 RCX: 00007f0c1de7cae9
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 0000000000000008
RBP: 00007f0c1dec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0c1df9bf80 R15: 00007fff5fcebca8
 </TASK>
INFO: task syz-executor.5:10226 blocked for more than 144 seconds.
      Not tainted 6.5.0-rc4-next-20230804-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:24640 pid:10226 ppid:5093   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6711
 schedule+0xe7/0x1b0 kernel/sched/core.c:6787
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6846
 rwsem_down_read_slowpath+0x625/0xb20 kernel/locking/rwsem.c:1086
 __down_read_common kernel/locking/rwsem.c:1250 [inline]
 __down_read kernel/locking/rwsem.c:1263 [inline]
 down_read+0xf0/0x470 kernel/locking/rwsem.c:1522
 inode_lock_shared include/linux/fs.h:812 [inline]
 btrfs_inode_lock+0xf9/0x100 fs/btrfs/inode.c:369
 btrfs_direct_read fs/btrfs/file.c:3727 [inline]
 btrfs_file_read_iter+0x4bc/0x830 fs/btrfs/file.c:3785
 call_read_iter include/linux/fs.h:1970 [inline]
 copy_splice_read+0x418/0x8f0 fs/splice.c:366
 vfs_splice_read fs/splice.c:994 [inline]
 vfs_splice_read+0x2ea/0x3b0 fs/splice.c:964
 splice_direct_to_actor+0x2a5/0xa30 fs/splice.c:1071
 do_splice_direct+0x1af/0x280 fs/splice.c:1196
 do_sendfile+0xb88/0x1390 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 __x64_sys_sendfile64+0x1d6/0x220 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0c1de7cae9
RSP: 002b:00007f0c1eafb0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f0c1df9c050 RCX: 00007f0c1de7cae9
RDX: 0000000000000000 RSI: 000000000000000a RDI: 000000000000000a
RBP: 00007f0c1dec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000008001 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f0c1df9c050 R15: 00007fff5fcebca8
 </TASK>
INFO: task syz-executor.5:10232 blocked for more than 144 seconds.
      Not tainted 6.5.0-rc4-next-20230804-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:27408 pid:10232 ppid:5093   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6711
 schedule+0xe7/0x1b0 kernel/sched/core.c:6787
 wait_on_state fs/btrfs/extent-io-tree.c:719 [inline]
 wait_extent_bit+0x578/0x670 fs/btrfs/extent-io-tree.c:763
 lock_extent+0x104/0x190 fs/btrfs/extent-io-tree.c:1755
 btrfs_page_mkwrite+0x653/0x11e0 fs/btrfs/inode.c:8060
 do_page_mkwrite+0x17a/0x380 mm/memory.c:2948
 wp_page_shared mm/memory.c:3308 [inline]
 do_wp_page+0xd04/0x3550 mm/memory.c:3393
 handle_pte_fault mm/memory.c:5029 [inline]
 __handle_mm_fault+0x180f/0x4180 mm/memory.c:5154
 handle_mm_fault+0x47a/0xa00 mm/memory.c:5319
 do_user_addr_fault+0x3ad/0xfe0 arch/x86/mm/fault.c:1391
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x5c/0xd0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:rep_movs_alternative+0x33/0xb0 arch/x86/lib/copy_user_64.S:58
Code: 40 83 f9 08 73 21 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8b 06 <48> 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb
RSP: 0018:ffffc90005c678d8 EFLAGS: 00050206

RAX: 0000000000000000 RBX: 0000000000000038 RCX: 0000000000000038
RDX: fffff52000b8cf32 RSI: ffffc90005c67958 RDI: 0000000020000220
RBP: 0000000020000220 R08: 0000000000000000 R09: fffff52000b8cf31
R10: ffffc90005c6798f R11: ffffffff81dbae15 R12: ffffc90005c67958
R13: 0000000020000258 R14: 0000000000000000 R15: 0000000000000000
 copy_user_generic arch/x86/include/asm/uaccess_64.h:112 [inline]
 raw_copy_to_user arch/x86/include/asm/uaccess_64.h:133 [inline]
 _copy_to_user lib/usercopy.c:41 [inline]
 _copy_to_user+0xa8/0xb0 lib/usercopy.c:34
 copy_to_user include/linux/uaccess.h:191 [inline]
 fiemap_fill_next_extent+0x232/0x380 fs/ioctl.c:144
 emit_last_fiemap_cache fs/btrfs/extent_io.c:2532 [inline]
 extent_fiemap+0x13e0/0x19f0 fs/btrfs/extent_io.c:3059
 btrfs_fiemap+0xe4/0x160 fs/btrfs/inode.c:7732
 ioctl_fiemap fs/ioctl.c:219 [inline]
 do_vfs_ioctl+0x339/0x1920 fs/ioctl.c:810
 __do_sys_ioctl fs/ioctl.c:868 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x112/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0c1de7cae9
RSP: 002b:00007f0c155fe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0c1df9c120 RCX: 00007f0c1de7cae9
RDX: 0000000020000200 RSI: 00000000c020660b RDI: 0000000000000005
RBP: 00007f0c1dec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f0c1df9c120 R15: 00007fff5fcebca8
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc4-next-20230804-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x2ac/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+0xfab/0x1230 kernel/hung_task.c:379
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 13760 Comm: syz-executor.5 Not tainted 6.5.0-rc4-next-20230804-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:133 [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+0xd4/0x190 mm/kasan/generic.c:187
Code: 83 38 00 74 ed 48 8d 50 08 eb 0d 48 83 c0 01 48 39 c2 0f 84 89 00 00 00 80 38 00 74 ee 48 89 c2 b8 01 00 00 00 48 85 d2 74 1e <41> 83 e2 07 49 39 d1 75 0a 45 3a 11 b8 01 00 00 00 7c 0b 44 89 c2
RSP: 0018:ffffc90015e8f818 EFLAGS: 00000286
RAX: 0000000000000001 RBX: fffff52002bd1f0d RCX: ffffffff8168115e
RDX: fffff52002bd1f0c RSI: 0000000000000004 RDI: ffffc90015e8f860
RBP: fffff52002bd1f0c R08: 0000000000000001 R09: fffff52002bd1f0c
R10: ffffc90015e8f863 R11: 0000000000007290 R12: ffff88807a55f2c0
R13: ffff88807a55f2c8 R14: 0000000000000000 R15: ffffc90015e8fa98
FS:  00007f480d5706c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc5fe72cfe4 CR3: 000000001f296000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1295 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]
 do_raw_spin_lock+0x12e/0x2b0 kernel/locking/spinlock_debug.c:115
 spin_lock include/linux/spinlock.h:351 [inline]
 filemap_remove_folio+0xb7/0x250 mm/filemap.c:258
 truncate_inode_folio+0x49/0x70 mm/truncate.c:195
 shmem_undo_range+0x363/0x1190 mm/shmem.c:1003
 shmem_truncate_range mm/shmem.c:1119 [inline]
 shmem_evict_inode+0x334/0xb00 mm/shmem.c:1249
 evict+0x2ed/0x6b0 fs/inode.c:665
 iput_final fs/inode.c:1791 [inline]
 iput.part.0+0x55e/0x7a0 fs/inode.c:1817
 iput+0x5c/0x80 fs/inode.c:1807
 dentry_unlink_inode+0x292/0x430 fs/dcache.c:401
 __dentry_kill+0x3b8/0x640 fs/dcache.c:607
 dentry_kill fs/dcache.c:733 [inline]
 dput+0x8dd/0xfd0 fs/dcache.c:913
 __fput+0x53c/0xac0 fs/file_table.c:392
 task_work_run+0x14d/0x240 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f480c87b9da
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007f480d56fe80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f480c87b9da
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000010 R08: 0000000000000000 R09: 00000000000050e7
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 00007f480d56ff3c R14: 00007f480d570670 R15: 00007f4802fff000
 </TASK>