INFO: task syz-executor.0:29306 blocked for more than 143 seconds.
      Not tainted 6.7.0-syzkaller-01727-gab27740f7665 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:23728 pid:29306 tgid:29305 ppid:5089   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5399 [inline]
 __schedule+0x177f/0x4960 kernel/sched/core.c:6726
 __schedule_loop kernel/sched/core.c:6801 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6816
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6873
 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]
 btrfs_inode_lock+0x4d/0xd0 fs/btrfs/inode.c:378
 btrfs_buffered_write+0x230/0x1380 fs/btrfs/file.c:1204
 btrfs_do_write_iter+0x2bb/0x1190 fs/btrfs/file.c:1687
 call_write_iter include/linux/fs.h:2085 [inline]
 iter_file_splice_write+0xa64/0x1320 fs/splice.c:743
 do_splice_from fs/splice.c:941 [inline]
 direct_splice_actor+0xf6/0x1e0 fs/splice.c:1164
 splice_direct_to_actor+0x54e/0xc80 fs/splice.c:1108
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x28c/0x3e0 fs/splice.c:1233
 do_sendfile+0x56d/0xdb0 fs/read_write.c:1295
 __do_sys_sendfile64 fs/read_write.c:1362 [inline]
 __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1348
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fa22787cd29
RSP: 002b:00007fa2286110c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fa2279abf80 RCX: 00007fa22787cd29
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007fa2278c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201008 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa2279abf80 R15: 00007ffdb90bed28
 </TASK>
INFO: task syz-executor.0:29414 blocked for more than 144 seconds.
      Not tainted 6.7.0-syzkaller-01727-gab27740f7665 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:25840 pid:29414 tgid:29305 ppid:5089   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5399 [inline]
 __schedule+0x177f/0x4960 kernel/sched/core.c:6726
 __schedule_loop kernel/sched/core.c:6801 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6816
 io_schedule+0x8c/0x100 kernel/sched/core.c:9022
 folio_wait_bit_common+0x881/0x12b0 mm/filemap.c:1273
 btrfs_page_mkwrite+0x4a4/0xd10 fs/btrfs/inode.c:8148
 do_page_mkwrite+0x197/0x470 mm/memory.c:2966
 wp_page_shared mm/memory.c:3353 [inline]
 do_wp_page+0x20e3/0x4c80 mm/memory.c:3493
 handle_pte_fault mm/memory.c:5160 [inline]
 __handle_mm_fault+0x26a3/0x72b0 mm/memory.c:5285
 handle_mm_fault+0x27e/0x770 mm/memory.c:5450
 do_user_addr_fault arch/x86/mm/fault.c:1415 [inline]
 handle_page_fault arch/x86/mm/fault.c:1507 [inline]
 exc_page_fault+0x2ad/0x870 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:rep_movs_alternative+0x4a/0x70 arch/x86/lib/copy_user_64.S:71
Code: 75 f1 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 c9 <f3> a4 c3 48 89 c8 48 c1 e9 03 83 e0 07 f3 48 a5 89 c1 85 c9 75 b3
RSP: 0018:ffffc90015dafbd0 EFLAGS: 00050206
RAX: ffffffff84857301 RBX: 0000000020000250 RCX: 0000000000000090
RDX: 0000000000000000 RSI: ffffc90015dafc40 RDI: 00000000200001c0
RBP: ffffc90015dafd70 R08: ffffc90015dafccf R09: 1ffff92002bb5f99
R10: dffffc0000000000 R11: fffff52002bb5f9a R12: 0000000000000090
R13: ffffc90015dafdcc R14: 00000000200001c0 R15: ffffc90015dafc40
 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+0x86/0xa0 lib/usercopy.c:41
 copy_to_user include/linux/uaccess.h:191 [inline]
 cp_new_stat+0x544/0x6d0 fs/stat.c:434
 __do_sys_newfstat fs/stat.c:481 [inline]
 __se_sys_newfstat fs/stat.c:475 [inline]
 __x64_sys_newfstat+0x165/0x1b0 fs/stat.c:475
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fa22787cd29
RSP: 002b:00007fa2285f00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000005
RAX: ffffffffffffffda RBX: 00007fa2279ac050 RCX: 00007fa22787cd29
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000008
RBP: 00007fa2278c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fa2279ac050 R15: 00007ffdb90bed28
 </TASK>
INFO: task syz-executor.0:29416 blocked for more than 145 seconds.
      Not tainted 6.7.0-syzkaller-01727-gab27740f7665 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:24752 pid:29416 tgid:29305 ppid:5089   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5399 [inline]
 __schedule+0x177f/0x4960 kernel/sched/core.c:6726
 __schedule_loop kernel/sched/core.c:6801 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6816
 wait_extent_bit fs/btrfs/extent-io-tree.c:799 [inline]
 lock_extent+0x69d/0x850 fs/btrfs/extent-io-tree.c:1843
 btrfs_page_mkwrite+0x5bd/0xd10 fs/btrfs/inode.c:8158
 do_page_mkwrite+0x197/0x470 mm/memory.c:2966
 wp_page_shared mm/memory.c:3353 [inline]
 do_wp_page+0x20e3/0x4c80 mm/memory.c:3493
 handle_pte_fault mm/memory.c:5160 [inline]
 __handle_mm_fault+0x26a3/0x72b0 mm/memory.c:5285
 handle_mm_fault+0x27e/0x770 mm/memory.c:5450
 do_user_addr_fault arch/x86/mm/fault.c:1415 [inline]
 handle_page_fault arch/x86/mm/fault.c:1507 [inline]
 exc_page_fault+0x2ad/0x870 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:rep_movs_alternative+0x33/0x70 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 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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:ffffc90015d4f530 EFLAGS: 00050206
RAX: 0000000000000000 RBX: 0000000020000298 RCX: 0000000000000038
RDX: 0000000000000000 RSI: ffffc90015d4f5e0 RDI: 0000000020000260
RBP: ffffc90015d4f690 R08: ffffc90015d4f617 R09: 1ffff92002ba9ec2
R10: dffffc0000000000 R11: fffff52002ba9ec3 R12: 0000000000000038
R13: ffffc90015d4f5e0 R14: 0000000020000260 R15: ffffc90015d4f5e0
 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+0x86/0xa0 lib/usercopy.c:41
 copy_to_user include/linux/uaccess.h:191 [inline]
 fiemap_fill_next_extent+0x235/0x410 fs/ioctl.c:145
 emit_last_fiemap_cache fs/btrfs/extent_io.c:2511 [inline]
 extent_fiemap+0x1b9c/0x1fe0 fs/btrfs/extent_io.c:3038
 btrfs_fiemap+0x178/0x1e0 fs/btrfs/inode.c:7830
 ioctl_fiemap fs/ioctl.c:220 [inline]
 do_vfs_ioctl+0x19ea/0x2b40 fs/ioctl.c:811
 __do_sys_ioctl fs/ioctl.c:869 [inline]
 __se_sys_ioctl+0x81/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fa22787cd29
RSP: 002b:00007fa2285cf0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa2279ac120 RCX: 00007fa22787cd29
RDX: 0000000020000240 RSI: 00000000c020660b RDI: 0000000000000007
RBP: 00007fa2278c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fa2279ac120 R15: 00007ffdb90bed28
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-01727-gab27740f7665 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <TASK>
 __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
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 30249 Comm: kworker/1:4 Not tainted 6.7.0-syzkaller-01727-gab27740f7665 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:chacha_block_generic+0x5b6/0x1340 lib/crypto/chacha.c:86
Code: e8 03 42 0f b6 04 38 84 c0 0f 85 cd 09 00 00 44 89 33 48 8d 7e 30 48 89 f8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 df 09 00 00 <44> 8b 74 24 70 4c 8d 42 30 4d 89 c1 49 c1 e9 03 43 0f b6 04 39 84
RSP: 0018:ffffc9000afa7700 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffc9000afa788c RCX: 000000003523be3a
RDX: ffffc9000afa7a00 RSI: ffffc9000afa7740 RDI: ffffc9000afa7770
RBP: ffffc9000afa77f0 R08: 00000000b9092d8e R09: ffffc9000afa777c
R10: 00000000b15b6874 R11: 00000000e9311532 R12: ffffc9000afa788f
R13: ffffc9000afa7860 R14: 000000004ceb6067 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055cc88d0cc20 CR3: 000000005af15000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 chacha20_block include/crypto/chacha.h:36 [inline]
 crng_fast_key_erasure drivers/char/random.c:305 [inline]
 crng_make_state+0x37f/0xa80 drivers/char/random.c:371
 _get_random_bytes+0xd7/0x2b0 drivers/char/random.c:385
 eth_random_addr include/linux/etherdevice.h:232 [inline]
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:756 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:805 [inline]
 nsim_dev_trap_report_work+0x32b/0xa90 drivers/net/netdevsim/dev.c:850
 process_one_work kernel/workqueue.c:2633 [inline]
 process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2706
 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
 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
 </TASK>