BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1576
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7427, name: syz.0.19
preempt_count: 101, expected: 0
RCU nest depth: 0, expected: 0
no locks held by syz.0.19/7427.
Preemption disabled at:
[<ffff8000801fbef4>] local_bh_disable+0x28/0x34 include/linux/bottom_half.h:20
CPU: 1 UID: 0 PID: 7427 Comm: syz.0.19 Not tainted 6.15.0-rc6-syzkaller-gc919f08732cc #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 __might_resched+0x348/0x4c4 kernel/sched/core.c:8818
 __might_sleep+0x94/0x110 kernel/sched/core.c:8747
 down_write+0x28/0xc0 kernel/locking/rwsem.c:1576
 inode_lock include/linux/fs.h:867 [inline]
 jfs_fsync+0x9c/0x1d0 fs/jfs/file.c:28
 vfs_fsync_range+0x160/0x19c fs/sync.c:187
 generic_write_sync include/linux/fs.h:2976 [inline]
 dio_complete+0x510/0x6bc fs/direct-io.c:313
 dio_bio_end_aio+0x474/0x544 fs/direct-io.c:368
 bio_endio+0x81c/0x858 block/bio.c:1551
 blk_update_request+0x4a4/0xbcc block/blk-mq.c:983
 blk_mq_end_request+0x54/0x88 block/blk-mq.c:1145
 lo_complete_rq+0x124/0x274 drivers/block/loop.c:304
 blk_complete_reqs block/blk-mq.c:1220 [inline]
 blk_done_softirq+0x11c/0x168 block/blk-mq.c:1225
 handle_softirqs+0x328/0xc88 kernel/softirq.c:579
 __do_softirq+0x14/0x20 kernel/softirq.c:613
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81
 call_on_irq_stack+0x24/0x30 arch/arm64/kernel/entry.S:891
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86
 do_softirq+0x90/0xf8 kernel/softirq.c:480
 __local_bh_enable_ip+0x240/0x35c kernel/softirq.c:407
 local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33
 put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:244 [inline]
 fpsimd_restore_current_state+0x1d4/0x708 arch/arm64/kernel/fpsimd.c:1749
 do_notify_resume+0x144/0x1ec arch/arm64/kernel/entry-common.c:154
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xb4/0x17c arch/arm64/kernel/entry-common.c:768
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

=============================
[ BUG: Invalid wait context ]
6.15.0-rc6-syzkaller-gc919f08732cc #0 Tainted: G        W          
-----------------------------
syz.0.19/7427 is trying to lock:
ffff0000e77e17e8 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline]
ffff0000e77e17e8 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: jfs_fsync+0x9c/0x1d0 fs/jfs/file.c:28
other info that might help us debug this:
context-{3:3}
no locks held by syz.0.19/7427.
stack backtrace:
CPU: 1 UID: 0 PID: 7427 Comm: syz.0.19 Tainted: G        W           6.15.0-rc6-syzkaller-gc919f08732cc #0 PREEMPT 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 print_lock_invalid_wait_context kernel/locking/lockdep.c:4831 [inline]
 check_wait_context kernel/locking/lockdep.c:4903 [inline]
 __lock_acquire+0xaa0/0x3058 kernel/locking/lockdep.c:5185
 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5866
 down_write+0x50/0xc0 kernel/locking/rwsem.c:1577
 inode_lock include/linux/fs.h:867 [inline]
 jfs_fsync+0x9c/0x1d0 fs/jfs/file.c:28
 vfs_fsync_range+0x160/0x19c fs/sync.c:187
 generic_write_sync include/linux/fs.h:2976 [inline]
 dio_complete+0x510/0x6bc fs/direct-io.c:313
 dio_bio_end_aio+0x474/0x544 fs/direct-io.c:368
 bio_endio+0x81c/0x858 block/bio.c:1551
 blk_update_request+0x4a4/0xbcc block/blk-mq.c:983
 blk_mq_end_request+0x54/0x88 block/blk-mq.c:1145
 lo_complete_rq+0x124/0x274 drivers/block/loop.c:304
 blk_complete_reqs block/blk-mq.c:1220 [inline]
 blk_done_softirq+0x11c/0x168 block/blk-mq.c:1225
 handle_softirqs+0x328/0xc88 kernel/softirq.c:579
 __do_softirq+0x14/0x20 kernel/softirq.c:613
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81
 call_on_irq_stack+0x24/0x30 arch/arm64/kernel/entry.S:891
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86
 do_softirq+0x90/0xf8 kernel/softirq.c:480
 __local_bh_enable_ip+0x240/0x35c kernel/softirq.c:407
 local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33
 put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:244 [inline]
 fpsimd_restore_current_state+0x1d4/0x708 arch/arm64/kernel/fpsimd.c:1749
 do_notify_resume+0x144/0x1ec arch/arm64/kernel/entry-common.c:154
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xb4/0x17c arch/arm64/kernel/entry-common.c:768
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1576
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 23, name: ksoftirqd/1
preempt_count: 100, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
Preemption disabled at:
[<ffff8000803ce50c>] softirq_handle_begin kernel/softirq.c:420 [inline]
[<ffff8000803ce50c>] handle_softirqs+0xe8/0xc88 kernel/softirq.c:555
CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Tainted: G        W           6.15.0-rc6-syzkaller-gc919f08732cc #0 PREEMPT 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 __might_resched+0x348/0x4c4 kernel/sched/core.c:8818
 __might_sleep+0x94/0x110 kernel/sched/core.c:8747
 down_write+0x28/0xc0 kernel/locking/rwsem.c:1576
 inode_lock include/linux/fs.h:867 [inline]
 jfs_fsync+0x9c/0x1d0 fs/jfs/file.c:28
 vfs_fsync_range+0x160/0x19c fs/sync.c:187
 generic_write_sync include/linux/fs.h:2976 [inline]
 dio_complete+0x510/0x6bc fs/direct-io.c:313
 dio_bio_end_aio+0x474/0x544 fs/direct-io.c:368
 bio_endio+0x81c/0x858 block/bio.c:1551
 blk_update_request+0x4a4/0xbcc block/blk-mq.c:983
 blk_mq_end_request+0x54/0x88 block/blk-mq.c:1145
 lo_complete_rq+0x124/0x274 drivers/block/loop.c:304
 blk_complete_reqs block/blk-mq.c:1220 [inline]
 blk_done_softirq+0x11c/0x168 block/blk-mq.c:1225
 handle_softirqs+0x328/0xc88 kernel/softirq.c:579
 run_ksoftirqd+0x70/0xc0 kernel/softirq.c:968
 smpboot_thread_fn+0x4d8/0x9cc kernel/smpboot.c:164
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847
BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1576
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 23, name: ksoftirqd/1
preempt_count: 100, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
Preemption disabled at:
[<ffff8000803ce50c>] softirq_handle_begin kernel/softirq.c:420 [inline]
[<ffff8000803ce50c>] handle_softirqs+0xe8/0xc88 kernel/softirq.c:555
CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Tainted: G        W           6.15.0-rc6-syzkaller-gc919f08732cc #0 PREEMPT 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 __might_resched+0x348/0x4c4 kernel/sched/core.c:8818
 __might_sleep+0x94/0x110 kernel/sched/core.c:8747
 down_write+0x28/0xc0 kernel/locking/rwsem.c:1576
 inode_lock include/linux/fs.h:867 [inline]
 jfs_fsync+0x9c/0x1d0 fs/jfs/file.c:28
 vfs_fsync_range+0x160/0x19c fs/sync.c:187
 generic_write_sync include/linux/fs.h:2976 [inline]
 dio_complete+0x510/0x6bc fs/direct-io.c:313
 dio_bio_end_aio+0x474/0x544 fs/direct-io.c:368
 bio_endio+0x81c/0x858 block/bio.c:1551
 blk_update_request+0x4a4/0xbcc block/blk-mq.c:983
 blk_mq_end_request+0x54/0x88 block/blk-mq.c:1145
 lo_complete_rq+0x124/0x274 drivers/block/loop.c:304
 blk_complete_reqs block/blk-mq.c:1220 [inline]
 blk_done_softirq+0x11c/0x168 block/blk-mq.c:1225
 handle_softirqs+0x328/0xc88 kernel/softirq.c:579
 run_ksoftirqd+0x70/0xc0 kernel/softirq.c:968
 smpboot_thread_fn+0x4d8/0x9cc kernel/smpboot.c:164
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847