ocfs2: Mounting device (7,4) on (node local, slot 0) with writeback data mode.
======================================================
WARNING: possible circular locking dependency detected
6.12.0-syzkaller-07749-g28eb75e178d3 #0 Not tainted
------------------------------------------------------
syz.4.3075/15267 is trying to acquire lock:
ffff8880588b32a8 (&oi->ip_io_mutex){+.+.}-{4:4}, at: __ocfs2_journal_access+0x3f1/0x8b0 fs/ocfs2/journal.c:684
but task is already holding lock:
ffff88807ff56958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #6 (jbd2_handle){++++}-{0:0}:
start_this_handle+0xf92/0x1430 fs/jbd2/transaction.c:448
jbd2__journal_start+0x394/0x6a0 fs/jbd2/transaction.c:505
__ext4_journal_start_sb+0x358/0x660 fs/ext4/ext4_jbd2.c:112
__ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
ext4_dirty_inode+0xa1/0x130 fs/ext4/inode.c:6038
__mark_inode_dirty+0x1f9/0xe60 fs/fs-writeback.c:2515
generic_update_time+0xcf/0xf0 fs/inode.c:2113
inode_update_time fs/inode.c:2126 [inline]
touch_atime+0x4ee/0x5d0 fs/inode.c:2198
file_accessed include/linux/fs.h:2539 [inline]
ext4_file_mmap+0x4fc/0x6b0 fs/ext4/file.c:816
call_mmap include/linux/fs.h:2183 [inline]
mmap_file mm/internal.h:123 [inline]
__mmap_region+0x1280/0x21c0 mm/mmap.c:1453
mmap_region+0x270/0x320 mm/mmap.c:1603
do_mmap+0xc00/0xfc0 mm/mmap.c:496
vm_mmap_pgoff+0x1ba/0x360 mm/util.c:588
ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:542
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:79
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #5 (&mm->mmap_lock){++++}-{4:4}:
__might_fault mm/memory.c:6716 [inline]
__might_fault+0x11b/0x190 mm/memory.c:6709
_inline_copy_from_user include/linux/uaccess.h:162 [inline]
_copy_from_user+0x29/0xd0 lib/usercopy.c:18
copy_from_user include/linux/uaccess.h:212 [inline]
__blk_trace_setup+0xa8/0x180 kernel/trace/blktrace.c:626
blk_trace_setup+0x47/0x70 kernel/trace/blktrace.c:648
sg_ioctl_common drivers/scsi/sg.c:1121 [inline]
sg_ioctl+0x65e/0x2750 drivers/scsi/sg.c:1163
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #4 (&q->debugfs_mutex){+.+.}-{4:4}:
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
blk_mq_init_sched+0x42b/0x640 block/blk-mq-sched.c:473
elevator_init_mq+0x2cd/0x420 block/elevator.c:610
add_disk_fwnode+0x113/0x1300 block/genhd.c:413
sd_probe+0xa86/0x1000 drivers/scsi/sd.c:4024
call_driver_probe drivers/base/dd.c:579 [inline]
really_probe+0x241/0xa90 drivers/base/dd.c:658
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
bus_for_each_drv+0x15a/0x1e0 drivers/base/bus.c:459
__device_attach_async_helper+0x1d3/0x290 drivers/base/dd.c:987
async_run_entry_fn+0x9f/0x530 kernel/async.c:129
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
-> #3 (&q->q_usage_counter(queue)#50){++++}-{0:0}:
blk_queue_enter+0x50f/0x640 block/blk-core.c:328
blk_mq_alloc_request+0x59b/0x950 block/blk-mq.c:652
scsi_alloc_request drivers/scsi/scsi_lib.c:1222 [inline]
scsi_execute_cmd+0x1eb/0xf40 drivers/scsi/scsi_lib.c:304
read_capacity_16+0x213/0xe10 drivers/scsi/sd.c:2655
sd_read_capacity drivers/scsi/sd.c:2824 [inline]
sd_revalidate_disk.isra.0+0x1a06/0xa8d0 drivers/scsi/sd.c:3734
sd_probe+0x904/0x1000 drivers/scsi/sd.c:4010
call_driver_probe drivers/base/dd.c:579 [inline]
really_probe+0x241/0xa90 drivers/base/dd.c:658
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
bus_for_each_drv+0x15a/0x1e0 drivers/base/bus.c:459
__device_attach_async_helper+0x1d3/0x290 drivers/base/dd.c:987
async_run_entry_fn+0x9f/0x530 kernel/async.c:129
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
-> #2 (&q->limits_lock){+.+.}-{4:4}:
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
queue_limits_start_update include/linux/blkdev.h:945 [inline]
loop_reconfigure_limits+0x2da/0x8d0 drivers/block/loop.c:1003
loop_set_block_size drivers/block/loop.c:1473 [inline]
lo_simple_ioctl drivers/block/loop.c:1496 [inline]
lo_ioctl+0x901/0x18b0 drivers/block/loop.c:1559
blkdev_ioctl+0x279/0x6d0 block/ioctl.c:693
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #1 (&q->q_usage_counter(io)#17){++++}-{0:0}:
bio_queue_enter block/blk.h:75 [inline]
blk_mq_submit_bio+0x1fc4/0x24c0 block/blk-mq.c:3092
__submit_bio+0x384/0x540 block/blk-core.c:629
__submit_bio_noacct_mq block/blk-core.c:710 [inline]
submit_bio_noacct_nocheck+0x6fb/0xd70 block/blk-core.c:739
submit_bio_noacct+0x93a/0x1e10 block/blk-core.c:868
ocfs2_read_blocks+0x6b0/0x1530 fs/ocfs2/buffer_head_io.c:330
ocfs2_read_inode_block_full fs/ocfs2/inode.c:1593 [inline]
ocfs2_read_inode_block+0xc6/0x170 fs/ocfs2/inode.c:1605
ocfs2_get_clusters+0x22b/0xc40 fs/ocfs2/extent_map.c:615
ocfs2_extent_map_get_blocks+0x1ac/0x640 fs/ocfs2/extent_map.c:668
ocfs2_read_virt_blocks+0x285/0x9c0 fs/ocfs2/extent_map.c:983
ocfs2_read_dir_block+0xb6/0x520 fs/ocfs2/dir.c:508
ocfs2_find_entry_el fs/ocfs2/dir.c:715 [inline]
ocfs2_find_entry+0xc3b/0x17b0 fs/ocfs2/dir.c:1080
ocfs2_find_files_on_disk fs/ocfs2/dir.c:1981 [inline]
ocfs2_lookup_ino_from_name+0xd5/0x1e0 fs/ocfs2/dir.c:2003
_ocfs2_get_system_file_inode fs/ocfs2/sysfile.c:136 [inline]
ocfs2_get_system_file_inode+0x443/0x940 fs/ocfs2/sysfile.c:112
ocfs2_init_global_system_inodes fs/ocfs2/super.c:457 [inline]
ocfs2_initialize_super.isra.0+0x1f48/0x32f0 fs/ocfs2/super.c:2248
ocfs2_fill_super+0xb1a/0x41d0 fs/ocfs2/super.c:994
mount_bdev+0x1e6/0x2d0 fs/super.c:1693
legacy_get_tree+0x10c/0x220 fs/fs_context.c:662
vfs_get_tree+0x92/0x380 fs/super.c:1814
do_new_mount fs/namespace.c:3507 [inline]
path_mount+0x14e6/0x1f20 fs/namespace.c:3834
do_mount fs/namespace.c:3847 [inline]
__do_sys_mount fs/namespace.c:4057 [inline]
__se_sys_mount fs/namespace.c:4034 [inline]
__x64_sys_mount+0x294/0x320 fs/namespace.c:4034
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (&oi->ip_io_mutex){+.+.}-{4:4}:
check_prev_add kernel/locking/lockdep.c:3161 [inline]
check_prevs_add kernel/locking/lockdep.c:3280 [inline]
validate_chain kernel/locking/lockdep.c:3904 [inline]
__lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226
lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
__ocfs2_journal_access+0x3f1/0x8b0 fs/ocfs2/journal.c:684
ocfs2_mark_inode_dirty+0x14a/0xd60 fs/ocfs2/inode.c:1296
ocfs2_fileattr_set+0x3e8/0x760 fs/ocfs2/ioctl.c:130
vfs_fileattr_set+0x7cf/0xc00 fs/ioctl.c:696
ioctl_fssetxattr fs/ioctl.c:758 [inline]
do_vfs_ioctl+0x24b/0x1990 fs/ioctl.c:875
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0x11d/0x200 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
other info that might help us debug this:
Chain exists of:
&oi->ip_io_mutex --> &mm->mmap_lock --> jbd2_handle
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
rlock(jbd2_handle);
lock(&mm->mmap_lock);
lock(jbd2_handle);
lock(&oi->ip_io_mutex);
*** DEADLOCK ***
5 locks held by syz.4.3075/15267:
#0: ffff88806a362420 (sb_writers#16){.+.+}-{0:0}, at: ioctl_fssetxattr fs/ioctl.c:756 [inline]
#0: ffff88806a362420 (sb_writers#16){.+.+}-{0:0}, at: do_vfs_ioctl+0x12b5/0x1990 fs/ioctl.c:875
#1: ffff8880588b3480 (&type->i_mutex_dir_key#11){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff8880588b3480 (&type->i_mutex_dir_key#11){++++}-{4:4}, at: vfs_fileattr_set+0x153/0xc00 fs/ioctl.c:681
#2: ffff88806a362610 (sb_internal#3){.+.+}-{0:0}, at: ocfs2_fileattr_set+0x376/0x760 fs/ocfs2/ioctl.c:119
#3: ffff8880319340e8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x3ae/0x970 fs/ocfs2/journal.c:350
#4: ffff88807ff56958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
stack backtrace:
CPU: 0 UID: 0 PID: 15267 Comm: syz.4.3075 Not tainted 6.12.0-syzkaller-07749-g28eb75e178d3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_circular_bug+0x419/0x5d0 kernel/locking/lockdep.c:2074
check_noncircular+0x31a/0x400 kernel/locking/lockdep.c:2206
check_prev_add kernel/locking/lockdep.c:3161 [inline]
check_prevs_add kernel/locking/lockdep.c:3280 [inline]
validate_chain kernel/locking/lockdep.c:3904 [inline]
__lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226
lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
__ocfs2_journal_access+0x3f1/0x8b0 fs/ocfs2/journal.c:684
ocfs2_mark_inode_dirty+0x14a/0xd60 fs/ocfs2/inode.c:1296
ocfs2_fileattr_set+0x3e8/0x760 fs/ocfs2/ioctl.c:130
vfs_fileattr_set+0x7cf/0xc00 fs/ioctl.c:696
ioctl_fssetxattr fs/ioctl.c:758 [inline]
do_vfs_ioctl+0x24b/0x1990 fs/ioctl.c:875
__do_sys_ioctl fs/ioctl.c:904 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0x11d/0x200 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fee1477e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fee15632038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fee14935fa0 RCX: 00007fee1477e819
RDX: 0000000020000080 RSI: 00000000401c5820 RDI: 0000000000000004
RBP: 00007fee147f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fee14935fa0 R15: 00007ffd3eb1b0c8
</TASK>