INFO: task kworker/u4:5:1009 blocked for more than 143 seconds.
Not tainted 6.2.0-rc5-next-20230123-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:5 state:D stack:23008 pid:1009 ppid:2 flags:0x00004000
Workqueue: loop1 loop_workfn
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1a0 kernel/sched/core.c:6695
io_schedule+0xbe/0x130 kernel/sched/core.c:8881
folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1299
__folio_lock mm/filemap.c:1662 [inline]
folio_lock include/linux/pagemap.h:950 [inline]
folio_lock include/linux/pagemap.h:946 [inline]
__filemap_get_folio+0xbab/0xdc0 mm/filemap.c:1934
shmem_get_folio_gfp+0x422/0x1950 mm/shmem.c:1877
shmem_get_folio mm/shmem.c:2068 [inline]
shmem_write_begin+0x14a/0x380 mm/shmem.c:2561
generic_perform_write+0x256/0x570 mm/filemap.c:3770
__generic_file_write_iter+0x2ae/0x500 mm/filemap.c:3898
generic_file_write_iter+0xe3/0x350 mm/filemap.c:3930
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_iter_write+0x74/0xa0 fs/read_write.c:902
lo_write_bvec drivers/block/loop.c:249 [inline]
lo_write_simple drivers/block/loop.c:271 [inline]
do_req_filebacked drivers/block/loop.c:495 [inline]
loop_handle_cmd drivers/block/loop.c:1873 [inline]
loop_process_work+0xdac/0x20e0 drivers/block/loop.c:1908
process_one_work+0x9bf/0x1750 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.0:5114 blocked for more than 143 seconds.
Not tainted 6.2.0-rc5-next-20230123-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:23624 pid:5114 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1a0 kernel/sched/core.c:6695
io_schedule+0xbe/0x130 kernel/sched/core.c:8881
migration_entry_wait_on_locked+0x7c9/0xc50 mm/filemap.c:1426
__migration_entry_wait+0x179/0x1a0 mm/migrate.c:317
do_swap_page+0x27aa/0x36b0 mm/memory.c:3691
handle_pte_fault mm/memory.c:4914 [inline]
__handle_mm_fault+0x1623/0x3e60 mm/memory.c:5052
handle_mm_fault+0x1b6/0x850 mm/memory.c:5198
do_user_addr_fault+0x475/0x1210 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:__put_user_4+0x16/0x20 arch/x86/lib/putuser.S:95
Code: 89 01 31 c9 0f 01 ca c3 66 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 bb fd ef ff ff ff 7f 00 00 48 39 d9 73 70 0f 01 cb <89> 01 31 c9 0f 01 ca c3 66 90 f3 0f 1e fa f3 0f 1e fa 0f 01 cb 89
RSP: 0018:ffffc9000407fd30 EFLAGS: 00050297
RAX: 00000000000003e0 RBX: 00007fffffffeffd RCX: 00007ffe48cd48cc
RDX: ffff888075abba80 RSI: ffffffff884b7b0a RDI: 0000000000000000
RBP: ffffc9000407fdd8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000094001 R12: 0000000000000000
R13: 1ffff9200080ffa9 R14: 0000000000000061 R15: ffff88807a883d40
ip_getsockopt+0x1c9/0x1e0 net/ipv4/ip_sockglue.c:1799
tcp_getsockopt+0x99/0x100 net/ipv4/tcp.c:4409
__sys_getsockopt+0x21a/0x6a0 net/socket.c:2315
__do_sys_getsockopt net/socket.c:2330 [inline]
__se_sys_getsockopt net/socket.c:2327 [inline]
__x64_sys_getsockopt+0xbe/0x160 net/socket.c:2327
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: 0033:0x7f3a3f08d6ea
RSP: 002b:00007ffe48cd48b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007ffe48cd48cc RCX: 00007f3a3f08d6ea
RDX: 0000000000000061 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007ffe48cd48cc R09: ffffffffff000000
R10: 00007ffe48cd4920 R11: 0000000000000212 R12: 00007ffe48cd4920
R13: 0000000000067ce3 R14: 0000000000000002 R15: 00007ffe48cd5030
INFO: task syz-executor.2:5119 blocked for more than 144 seconds.
Not tainted 6.2.0-rc5-next-20230123-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:22936 pid:5119 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1a0 kernel/sched/core.c:6695
io_schedule+0xbe/0x130 kernel/sched/core.c:8881
migration_entry_wait_on_locked+0x7c9/0xc50 mm/filemap.c:1426
__migration_entry_wait+0x179/0x1a0 mm/migrate.c:317
do_swap_page+0x27aa/0x36b0 mm/memory.c:3691
handle_pte_fault mm/memory.c:4914 [inline]
__handle_mm_fault+0x1623/0x3e60 mm/memory.c:5052
handle_mm_fault+0x1b6/0x850 mm/memory.c:5198
do_user_addr_fault+0x475/0x1210 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: 0033:0x7fb1fbab0df4
RSP: 002b:00007ffeda42fa10 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000000001f6 RCX: 00007fb1fbab0df1
RDX: 00007ffeda42fa50 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffeda42fadc R08: 0000000000000000 R09: 00007ffeda577080
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 0000000000067c00 R14: 0000000000000009 R15: 00007ffeda42fb40
INFO: task syz-executor.1:5125 blocked for more than 144 seconds.
Not tainted 6.2.0-rc5-next-20230123-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:24512 pid:5125 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1a0 kernel/sched/core.c:6695
io_schedule+0xbe/0x130 kernel/sched/core.c:8881
migration_entry_wait_on_locked+0x7c9/0xc50 mm/filemap.c:1426
__migration_entry_wait+0x179/0x1a0 mm/migrate.c:317
do_swap_page+0x27aa/0x36b0 mm/memory.c:3691
handle_pte_fault mm/memory.c:4914 [inline]
__handle_mm_fault+0x1623/0x3e60 mm/memory.c:5052
handle_mm_fault+0x1b6/0x850 mm/memory.c:5198
do_user_addr_fault+0x475/0x1210 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: 0033:0x7f3157eb0df4
RSP: 002b:00007ffde46c8ea0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 000000000000021f RCX: 00007f3157eb0df1
RDX: 00007ffde46c8ee0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffde46c8f6c R08: 0000000000000000 R09: 00007ffde46e7080
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 0000000000067ba6 R14: 0000000000000000 R15: 00007ffde46c8fd0
INFO: task syz-executor.5:5126 blocked for more than 144 seconds.
Not tainted 6.2.0-rc5-next-20230123-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24304 pid:5126 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1a0 kernel/sched/core.c:6695
io_schedule+0xbe/0x130 kernel/sched/core.c:8881
folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1299
folio_lock include/linux/pagemap.h:950 [inline]
shmem_undo_range+0x10b7/0x1340 mm/shmem.c:1014
shmem_truncate_range mm/shmem.c:1041 [inline]
shmem_evict_inode+0x32f/0xb60 mm/shmem.c:1156
evict+0x2ed/0x6b0 fs/inode.c:665
iput_final fs/inode.c:1748 [inline]
iput fs/inode.c:1774 [inline]
iput+0x52b/0x8e0 fs/inode.c:1760
dentry_unlink_inode+0x2b1/0x460 fs/dcache.c:401
__dentry_kill+0x3c0/0x640 fs/dcache.c:607
dentry_kill fs/dcache.c:733 [inline]
dput+0x865/0xe10 fs/dcache.c:913
__fput+0x3cc/0xa90 fs/file_table.c:329
task_work_run+0x16f/0x270 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+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff291a8d537
RSP: 002b:00007ffebbba1cd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff291a8d537
RDX: 00007ffebbba1dab RSI: 000000000000000a RDI: 00007ffebbba1da0
RBP: 00007ffebbba1da0 R08: 00000000ffffffff R09: 00007ffebbba1b70
R10: 00005555557a28b3 R11: 0000000000000246 R12: 00007ff291ae6b24
R13: 00007ffebbba2e60 R14: 00005555557a2810 R15: 00007ffebbba2ea0
INFO: task syz-executor.4:5129 blocked for more than 145 seconds.
Not tainted 6.2.0-rc5-next-20230123-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24328 pid:5129 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1a0 kernel/sched/core.c:6695
io_schedule+0xbe/0x130 kernel/sched/core.c:8881
migration_entry_wait_on_locked+0x7c9/0xc50 mm/filemap.c:1426
__migration_entry_wait+0x179/0x1a0 mm/migrate.c:317
do_swap_page+0x27aa/0x36b0 mm/memory.c:3691
handle_pte_fault mm/memory.c:4914 [inline]
__handle_mm_fault+0x1623/0x3e60 mm/memory.c:5052
handle_mm_fault+0x1b6/0x850 mm/memory.c:5198
do_user_addr_fault+0x475/0x1210 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:copy_user_enhanced_fast_string+0xe/0x40 arch/x86/lib/copy_user_64.S:166
Code: d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 2c 66 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 0f 01 cb 83 fa 40 72 34 89 d1 a4 31 c0 0f 01 ca c3 89 ca eb 06 66 0f 1f 44 00 00 83 f8 12 74
RSP: 0018:ffffc9000416fa48 EFLAGS: 00050246
RAX: 0000000000000001 RBX: 0000000000000040 RCX: 0000000000000040
RDX: 0000000000000040 RSI: ffffc9000ba5b000 RDI: 00007fff31555800
RBP: 00007fff31555800 R08: 0000000000000000 R09: ffffc9000ba5b03f
R10: fffff5200174b607 R11: 0000000000000000 R12: 00007fffffffefc0
R13: ffffc9000ba5b000 R14: ffff888020b53040 R15: ffff888081a41cc0
copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:58 [inline]
_copy_to_user lib/usercopy.c:34 [inline]
_copy_to_user+0x127/0x150 lib/usercopy.c:27
copy_to_user include/linux/uaccess.h:169 [inline]
__do_replace+0x728/0x900 net/ipv4/netfilter/arp_tables.c:934
do_replace net/ipv6/netfilter/ip6_tables.c:1157 [inline]
do_ip6t_set_ctl+0x8a9/0xb30 net/ipv6/netfilter/ip6_tables.c:1639
nf_setsockopt+0x87/0xe0 net/netfilter/nf_sockopt.c:101
ipv6_setsockopt+0x12b/0x190 net/ipv6/ipv6_sockglue.c:1028
tcp_setsockopt+0x9f/0x100 net/ipv4/tcp.c:3804
__sys_setsockopt+0x2c6/0x5b0 net/socket.c:2271
__do_sys_setsockopt net/socket.c:2282 [inline]
__se_sys_setsockopt net/socket.c:2279 [inline]
__x64_sys_setsockopt+0xbe/0x160 net/socket.c:2279
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: 0033:0x7fbd7c28d71a
RSP: 002b:00007fff31555778 EFLAGS: 00000206 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000029 RCX: 00007fbd7c28d71a
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007fff315557a0 R08: 00000000000003b8 R09: ffffffffff000000
R10: 00007fbd7c383bc0 R11: 0000000000000206 R12: 00007fff31555800
R13: 0000000000000003 R14: 00007fff3155579c R15: 00007fbd7c383b60
INFO: task syz-executor.1:8393 blocked for more than 145 seconds.
Not tainted 6.2.0-rc5-next-20230123-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25032 pid:8393 ppid:5125 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1a0 kernel/sched/core.c:6695
io_schedule+0xbe/0x130 kernel/sched/core.c:8881
bit_wait_io+0x16/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit+0x64/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xd9/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:101 [inline]
__wait_on_buffer fs/buffer.c:123 [inline]
wait_on_buffer include/linux/buffer_head.h:388 [inline]
__sync_dirty_buffer+0x299/0x380 fs/buffer.c:2793
nilfs_sync_super fs/nilfs2/super.c:214 [inline]
nilfs_commit_super+0x73d/0x970 fs/nilfs2/super.c:297
nilfs_setup_super.isra.0+0x29d/0x3c0 fs/nilfs2/super.c:832
nilfs_fill_super fs/nilfs2/super.c:1086 [inline]
nilfs_mount+0xe3f/0xfc0 fs/nilfs2/super.c:1315
legacy_get_tree+0x109/0x220 fs/fs_context.c:610
vfs_get_tree+0x8d/0x2f0 fs/super.c:1489
do_new_mount fs/namespace.c:3031 [inline]
path_mount+0x132a/0x1e20 fs/namespace.c:3361
do_mount fs/namespace.c:3374 [inline]
__do_sys_mount fs/namespace.c:3583 [inline]
__se_sys_mount fs/namespace.c:3560 [inline]
__x64_sys_mount+0x283/0x300 fs/namespace.c:3560
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: 0033:0x7f3157e8d5fa
RSP: 002b:00007f3158c44f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000eb1 RCX: 00007f3157e8d5fa
RDX: 0000000020000ec0 RSI: 0000000020000f00 RDI: 00007f3158c44fe0
RBP: 00007f3158c45020 R08: 00007f3158c45020 R09: 0000000000000010
R10: 0000000000000010 R11: 0000000000000202 R12: 0000000020000ec0
R13: 0000000020000f00 R14: 00007f3158c44fe0 R15: 0000000020000100
INFO: task syz-executor.2:8387 blocked for more than 145 seconds.
Not tainted 6.2.0-rc5-next-20230123-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28064 pid:8387 ppid:5119 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1a0 kernel/sched/core.c:6695
io_schedule+0xbe/0x130 kernel/sched/core.c:8881
migration_entry_wait_on_locked+0x7c9/0xc50 mm/filemap.c:1426
__migration_entry_wait+0x179/0x1a0 mm/migrate.c:317
do_swap_page+0x27aa/0x36b0 mm/memory.c:3691
handle_pte_fault mm/memory.c:4914 [inline]
__handle_mm_fault+0x1623/0x3e60 mm/memory.c:5052
handle_mm_fault+0x1b6/0x850 mm/memory.c:5198
do_user_addr_fault+0x475/0x1210 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: 0033:0x7fb1fba3768c
RSP: 002b:00007ffeda42f8a0 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 00007fb1fbbabf80 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fb1fbbad980 R08: 0000000000000000 R09: 00007ffeda577080
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000067f0a
R13: 00007ffeda42f980 R14: 00007ffeda42f9a0 R15: 0000000000000032
INFO: task syz-executor.2:8391 blocked for more than 146 seconds.
Not tainted 6.2.0-rc5-next-20230123-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:25904 pid:8391 ppid:5119 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5301 [inline]
__schedule+0x25d0/0x5a70 kernel/sched/core.c:6619
schedule+0xde/0x1a0 kernel/sched/core.c:6695
io_schedule+0xbe/0x130 kernel/sched/core.c:8881
bit_wait_io+0x16/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0x11f/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0xd9/0x110 kernel/sched/wait_bit.c:117
wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
__lock_buffer+0x66/0x70 fs/buffer.c:70
lock_buffer include/linux/buffer_head.h:400 [inline]
buffer_migrate_lock_buffers mm/migrate.c:702 [inline]
__buffer_migrate_folio+0x6bb/0x830 mm/migrate.c:748
move_to_new_folio+0x17a/0x6e0 mm/migrate.c:975
migrate_folio_move mm/migrate.c:1284 [inline]
migrate_pages_batch+0xe95/0x3620 mm/migrate.c:1809
migrate_pages+0x1b73/0x2300 mm/migrate.c:1961
compact_zone+0x1cc1/0x3ac0 mm/compaction.c:2412
compact_node+0x12a/0x1c0 mm/compaction.c:2696
compact_nodes mm/compaction.c:2709 [inline]
sysctl_compaction_handler+0x9f/0xf0 mm/compaction.c:2753
proc_sys_call_handler+0x49c/0x6d0 fs/proc/proc_sysctl.c:604
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_iter_write+0x74/0xa0 fs/read_write.c:902
iter_file_splice_write+0x745/0xc90 fs/splice.c:686
do_splice_from fs/splice.c:764 [inline]
direct_splice_actor+0x114/0x180 fs/splice.c:931
splice_direct_to_actor+0x335/0x8a0 fs/splice.c:886
do_splice_direct+0x1ab/0x280 fs/splice.c:974
do_sendfile+0xb19/0x12c0 fs/read_write.c:1255
__do_sys_sendfile64 fs/read_write.c:1323 [inline]
__se_sys_sendfile64 fs/read_write.c:1309 [inline]
__x64_sys_sendfile64+0x1d0/0x210 fs/read_write.c:1309
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: 0033:0x7fb1fba8c0c9
RSP: 002b:00007fb1fc70c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fb1fbbabf80 RCX: 00007fb1fba8c0c9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000007
RBP: 00007fb1fbae7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000264 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeda42f81f R14: 00007fb1fc70c300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8c793cb0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xcd0 kernel/rcu/tasks.h:516
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8c7939b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xcd0 kernel/rcu/tasks.h:516
1 lock held by khungtaskd/28:
#0: ffffffff8c794880 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x2d4 kernel/locking/lockdep.c:6544
4 locks held by kworker/u4:5/1009:
#0: ffff88807ea1a938 ((wq_completion)loop1){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88807ea1a938 ((wq_completion)loop1){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88807ea1a938 ((wq_completion)loop1){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88807ea1a938 ((wq_completion)loop1){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline]
#0: ffff88807ea1a938 ((wq_completion)loop1){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline]
#0: ffff88807ea1a938 ((wq_completion)loop1){+.+.}-{0:0}, at: process_one_work+0x86d/0x1750 kernel/workqueue.c:2361
#1: ffffc90004b3fda8 ((work_completion)(&worker->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1750 kernel/workqueue.c:2365
#2: ffff8880125fe460 (sb_writers#5){.+.+}-{0:0}, at: process_one_work+0x9bf/0x1750 kernel/workqueue.c:2390
#3: ffff8880854f9560 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#3: ffff8880854f9560 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: generic_file_write_iter+0x92/0x350 mm/filemap.c:3927
2 locks held by getty/4758:
#0: ffff888149bf4098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.0/5114:
#0: ffff88807873c098 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff88807873c098 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1210 arch/x86/mm/fault.c:1348
1 lock held by syz-executor.2/5119:
#0: ffff888078739398 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff888078739398 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1210 arch/x86/mm/fault.c:1348
1 lock held by syz-executor.1/5125:
#0: ffff888078738a98 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff888078738a98 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1210 arch/x86/mm/fault.c:1348
1 lock held by syz-executor.4/5129:
#0: ffff88807873ae98 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff88807873ae98 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1210 arch/x86/mm/fault.c:1348
1 lock held by syz-executor.1/8385:
#0: ffff88807e2cd298 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff88807e2cd298 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1210 arch/x86/mm/fault.c:1348
2 locks held by syz-executor.1/8393:
#0: ffff88802affc0e0 (&type->s_umount_key#52/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228
#1: ffff888076d81090 (&nilfs->ns_sem){++++}-{3:3}, at: nilfs_fill_super fs/nilfs2/super.c:1085 [inline]
#1: ffff888076d81090 (&nilfs->ns_sem){++++}-{3:3}, at: nilfs_mount+0xe32/0xfc0 fs/nilfs2/super.c:1315
1 lock held by syz-executor.2/8387:
#0: ffff88807e2c9c98 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff88807e2c9c98 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0x276/0x1210 arch/x86/mm/fault.c:1348
1 lock held by syz-executor.2/8391:
#0: ffff888027aa2460 (sb_writers#3){.+.+}-{0:0}, at: __do_sys_sendfile64 fs/read_write.c:1323 [inline]
#0: ffff888027aa2460 (sb_writers#3){.+.+}-{0:0}, at: __se_sys_sendfile64 fs/read_write.c:1309 [inline]
#0: ffff888027aa2460 (sb_writers#3){.+.+}-{0:0}, at: __x64_sys_sendfile64+0x1d0/0x210 fs/read_write.c:1309
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc5-next-20230123-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xcae/0x1050 kernel/hung_task.c:377
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: 6643 Comm: kworker/u4:8 Not tainted 6.2.0-rc5-next-20230123-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:write_comp_data+0x3c/0x90 kernel/kcov.c:236
Code: 01 00 00 49 89 f8 65 48 8b 14 25 40 b8 03 00 a9 00 01 ff 00 74 0e 85 f6 74 59 8b 82 74 15 00 00 85 c0 74 4f 8b 82 50 15 00 00 <83> f8 03 75 44 48 8b 82 58 15 00 00 8b 92 54 15 00 00 48 8b 38 48
RSP: 0018:ffffc9000beafc78 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888082c195a0 RCX: ffffffff89937101
RDX: ffff88807cf30000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: dffffc0000000000 R15: 00000000000002b4
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00079e9d8 CR3: 000000002babf000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock include/linux/rcupdate.h:774 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x141/0xfe0 net/batman-adv/network-coding.c:719
process_one_work+0x9bf/0x1750 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