------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 0 PID: 75 at kernel/locking/mutex.c:582 __mutex_lock_common+0x1a3e/0x2530 kernel/locking/mutex.c:582 Modules linked in: CPU: 0 PID: 75 Comm: kworker/u4:4 Not tainted 6.2.0-syzkaller-13115-gee3f96b16468 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Workqueue: writeback wb_workfn (flush-7:2) RIP: 0010:__mutex_lock_common+0x1a3e/0x2530 kernel/locking/mutex.c:582 Code: 04 28 84 c0 0f 85 82 08 00 00 83 3d e3 e9 b3 03 00 0f 85 00 e7 ff ff 48 c7 c7 80 74 0a 8b 48 c7 c6 20 75 0a 8b e8 42 ef 92 f6 <0f> 0b e9 e6 e6 ff ff e8 56 e1 3f f6 e9 59 fb ff ff 0f 0b e9 bd f0 RSP: 0018:ffffc900015e7200 EFLAGS: 00010246 RAX: ee0bec7a0ef11200 RBX: 0000000000000000 RCX: ffff888018960000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900015e7380 R08: ffffffff8153a9f2 R09: ffffed101730515b R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc80af15829 CR3: 0000000027c70000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799 hfsplus_ext_write_extent+0x8e/0x1f0 fs/hfsplus/extents.c:149 hfsplus_write_inode+0x22/0x5e0 fs/hfsplus/super.c:154 write_inode fs/fs-writeback.c:1453 [inline] __writeback_single_inode+0x84d/0x15e0 fs/fs-writeback.c:1665 writeback_sb_inodes+0x92c/0x1360 fs/fs-writeback.c:1891 wb_writeback+0x508/0x1080 fs/fs-writeback.c:2065 wb_do_writeback fs/fs-writeback.c:2208 [inline] wb_workfn+0x48b/0x1100 fs/fs-writeback.c:2248 process_one_work+0x915/0x13a0 kernel/workqueue.c:2390 worker_thread+0xa63/0x1210 kernel/workqueue.c:2537 kthread+0x270/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308