====================================================== WARNING: possible circular locking dependency detected 5.15.175-syzkaller #0 Not tainted ------------------------------------------------------ syz.2.543/7328 is trying to acquire lock: ffff888051a7ed88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] ffff888051a7ed88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}, at: ocfs2_del_inode_from_orphan+0x155/0x7f0 fs/ocfs2/namei.c:2713 but task is already holding lock: ffff888051b994a0 (&oi->ip_alloc_sem){++++}-{3:3}, at: ocfs2_dio_end_io_write fs/ocfs2/aops.c:2325 [inline] ffff888051b994a0 (&oi->ip_alloc_sem){++++}-{3:3}, at: ocfs2_dio_end_io+0x446/0x1250 fs/ocfs2/aops.c:2431 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&oi->ip_alloc_sem){++++}-{3:3}: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 down_write+0x38/0x60 kernel/locking/rwsem.c:1551 ocfs2_try_remove_refcount_tree+0xb2/0x330 fs/ocfs2/refcounttree.c:932 ocfs2_truncate_file+0xe3c/0x14f0 fs/ocfs2/file.c:517 ocfs2_setattr+0x16dd/0x1ce0 fs/ocfs2/file.c:1215 notify_change+0xc6d/0xf50 fs/attr.c:505 do_truncate+0x21c/0x300 fs/open.c:65 handle_truncate fs/namei.c:3265 [inline] do_open fs/namei.c:3612 [inline] path_openat+0x28a3/0x2f20 fs/namei.c:3742 do_filp_open+0x21c/0x460 fs/namei.c:3769 do_sys_openat2+0x13b/0x4f0 fs/open.c:1253 do_sys_open fs/open.c:1269 [inline] __do_sys_open fs/open.c:1277 [inline] __se_sys_open fs/open.c:1273 [inline] __x64_sys_open+0x221/0x270 fs/open.c:1273 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 -> #2 (&oi->ip_xattr_sem){++++}-{3:3}: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 down_read+0x45/0x2e0 kernel/locking/rwsem.c:1498 ocfs2_calc_xattr_init+0x204/0xd60 fs/ocfs2/xattr.c:631 ocfs2_mknod+0x1303/0x2cd0 fs/ocfs2/namei.c:330 vfs_mknod+0x444/0x4d0 fs/namei.c:3944 unix_bind_bsd net/unix/af_unix.c:1076 [inline] unix_bind+0x4fd/0x920 net/unix/af_unix.c:1164 __sys_bind+0x388/0x400 net/socket.c:1720 __do_sys_bind net/socket.c:1731 [inline] __se_sys_bind net/socket.c:1729 [inline] __x64_sys_bind+0x76/0x80 net/socket.c:1729 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 down_write+0x38/0x60 kernel/locking/rwsem.c:1551 inode_lock include/linux/fs.h:789 [inline] ocfs2_remove_inode fs/ocfs2/inode.c:655 [inline] ocfs2_wipe_inode fs/ocfs2/inode.c:818 [inline] ocfs2_delete_inode fs/ocfs2/inode.c:1079 [inline] ocfs2_evict_inode+0x2023/0x4500 fs/ocfs2/inode.c:1216 evict+0x529/0x930 fs/inode.c:622 d_delete_notify include/linux/fsnotify.h:267 [inline] vfs_rmdir+0x33c/0x460 fs/namei.c:4162 do_rmdir+0x368/0x670 fs/namei.c:4210 __do_sys_rmdir fs/namei.c:4229 [inline] __se_sys_rmdir fs/namei.c:4227 [inline] __x64_sys_rmdir+0x45/0x50 fs/namei.c:4227 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 down_write+0x38/0x60 kernel/locking/rwsem.c:1551 inode_lock include/linux/fs.h:789 [inline] ocfs2_del_inode_from_orphan+0x155/0x7f0 fs/ocfs2/namei.c:2713 ocfs2_dio_end_io_write fs/ocfs2/aops.c:2333 [inline] ocfs2_dio_end_io+0x556/0x1250 fs/ocfs2/aops.c:2431 dio_complete+0x25b/0x6e0 fs/direct-io.c:272 do_blockdev_direct_IO fs/direct-io.c:1336 [inline] __blockdev_direct_IO+0x41f2/0x4f40 fs/direct-io.c:1368 ocfs2_direct_IO+0x250/0x2c0 fs/ocfs2/aops.c:2468 generic_file_direct_write+0x204/0x460 mm/filemap.c:3687 __generic_file_write_iter+0x2a2/0x4f0 mm/filemap.c:3869 ocfs2_file_write_iter+0x1980/0x2120 fs/ocfs2/file.c:2472 do_iter_readv_writev+0x594/0x7a0 do_iter_write+0x1e6/0x760 fs/read_write.c:855 vfs_writev fs/read_write.c:928 [inline] do_pwritev+0x219/0x360 fs/read_write.c:1025 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 other info that might help us debug this: Chain exists of: &ocfs2_sysfile_lock_key[args->fi_sysfile_type] --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&oi->ip_alloc_sem); lock(&oi->ip_xattr_sem); lock(&oi->ip_alloc_sem); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]); *** DEADLOCK *** 3 locks held by syz.2.543/7328: #0: ffff88806106c460 (sb_writers#28){.+.+}-{0:0}, at: vfs_writev fs/read_write.c:927 [inline] #0: ffff88806106c460 (sb_writers#28){.+.+}-{0:0}, at: do_pwritev+0x1fd/0x360 fs/read_write.c:1025 #1: ffff888051b99808 (&sb->s_type->i_mutex_key#36){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #1: ffff888051b99808 (&sb->s_type->i_mutex_key#36){+.+.}-{3:3}, at: ocfs2_file_write_iter+0x41c/0x2120 fs/ocfs2/file.c:2402 #2: ffff888051b994a0 (&oi->ip_alloc_sem){++++}-{3:3}, at: ocfs2_dio_end_io_write fs/ocfs2/aops.c:2325 [inline] #2: ffff888051b994a0 (&oi->ip_alloc_sem){++++}-{3:3}, at: ocfs2_dio_end_io+0x446/0x1250 fs/ocfs2/aops.c:2431 stack backtrace: CPU: 1 PID: 7328 Comm: syz.2.543 Not tainted 5.15.175-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 check_noncircular+0x2f8/0x3b0 kernel/locking/lockdep.c:2133 check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 down_write+0x38/0x60 kernel/locking/rwsem.c:1551 inode_lock include/linux/fs.h:789 [inline] ocfs2_del_inode_from_orphan+0x155/0x7f0 fs/ocfs2/namei.c:2713 ocfs2_dio_end_io_write fs/ocfs2/aops.c:2333 [inline] ocfs2_dio_end_io+0x556/0x1250 fs/ocfs2/aops.c:2431 dio_complete+0x25b/0x6e0 fs/direct-io.c:272 do_blockdev_direct_IO fs/direct-io.c:1336 [inline] __blockdev_direct_IO+0x41f2/0x4f40 fs/direct-io.c:1368 ocfs2_direct_IO+0x250/0x2c0 fs/ocfs2/aops.c:2468 generic_file_direct_write+0x204/0x460 mm/filemap.c:3687 __generic_file_write_iter+0x2a2/0x4f0 mm/filemap.c:3869 ocfs2_file_write_iter+0x1980/0x2120 fs/ocfs2/file.c:2472 do_iter_readv_writev+0x594/0x7a0 do_iter_write+0x1e6/0x760 fs/read_write.c:855 vfs_writev fs/read_write.c:928 [inline] do_pwritev+0x219/0x360 fs/read_write.c:1025 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fba3b917d29 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:00007fba39788038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007fba3bb07fa0 RCX: 00007fba3b917d29 RDX: 0000000000000001 RSI: 0000000020000240 RDI: 000000000000000b RBP: 00007fba3b993b08 R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000007800 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fba3bb07fa0 R15: 00007fff156b02c8