loop1: detected capacity change from 0 to 32768 ocfs2: Slot 0 on device (7,1) was already allocated to this node! ocfs2: Mounting device (7,1) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.1.1160/9896 is trying to acquire lock: ffff88807f4f6618 (sb_internal#3){.+.+}-{0:0}, at: ocfs2_setattr+0x11c3/0x2560 fs/ocfs2/file.c:1263 but task is already holding lock: ffff8880573a14a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}, at: ocfs2_setattr+0x11b2/0x2560 fs/ocfs2/file.c:1262 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}: down_write+0x92/0x200 kernel/locking/rwsem.c:1590 ocfs2_try_remove_refcount_tree+0xa7/0x320 fs/ocfs2/refcounttree.c:932 ocfs2_xattr_set+0x1043/0x2a80 fs/ocfs2/xattr.c:3669 ocfs2_set_acl+0x46d/0x550 fs/ocfs2/acl.c:254 ocfs2_iop_set_acl+0x224/0x2d0 fs/ocfs2/acl.c:286 set_posix_acl+0x25f/0x320 fs/posix_acl.c:954 vfs_set_acl+0x5a7/0x930 fs/posix_acl.c:1133 do_set_acl+0x14c/0x1a0 fs/posix_acl.c:1278 do_setxattr+0xeb/0x180 fs/xattr.c:633 filename_setxattr+0x16b/0x1d0 fs/xattr.c:665 path_setxattrat+0x1de/0x2a0 fs/xattr.c:713 __do_sys_setxattr fs/xattr.c:747 [inline] __se_sys_setxattr fs/xattr.c:743 [inline] __x64_sys_setxattr+0xc6/0x140 fs/xattr.c:743 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: down_read+0x9b/0x480 kernel/locking/rwsem.c:1537 ocfs2_init_acl+0x2fc/0x7d0 fs/ocfs2/acl.c:366 ocfs2_mknod+0xd5c/0x2540 fs/ocfs2/namei.c:413 vfs_mknod+0x5da/0x8e0 fs/namei.c:4235 unix_bind_bsd net/unix/af_unix.c:1402 [inline] unix_bind+0x30a/0x1680 net/unix/af_unix.c:1495 __sys_bind_socket net/socket.c:1858 [inline] __sys_bind_socket net/socket.c:1850 [inline] __sys_bind+0x1a7/0x260 net/socket.c:1889 __do_sys_bind net/socket.c:1894 [inline] __se_sys_bind net/socket.c:1892 [inline] __x64_sys_bind+0x72/0xb0 net/socket.c:1892 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (jbd2_handle){++++}-{0:0}: start_this_handle+0x5ea/0x1410 fs/jbd2/transaction.c:444 jbd2__journal_start+0x394/0x6a0 fs/jbd2/transaction.c:501 jbd2_journal_start+0x29/0x40 fs/jbd2/transaction.c:540 ocfs2_start_trans+0x3b9/0x970 fs/ocfs2/journal.c:374 ocfs2_mknod+0xc19/0x2540 fs/ocfs2/namei.c:364 vfs_mknod+0x5da/0x8e0 fs/namei.c:4235 unix_bind_bsd net/unix/af_unix.c:1402 [inline] unix_bind+0x30a/0x1680 net/unix/af_unix.c:1495 __sys_bind_socket net/socket.c:1858 [inline] __sys_bind_socket net/socket.c:1850 [inline] __sys_bind+0x1a7/0x260 net/socket.c:1889 __do_sys_bind net/socket.c:1894 [inline] __se_sys_bind net/socket.c:1892 [inline] __x64_sys_bind+0x72/0xb0 net/socket.c:1892 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: down_read+0x9b/0x480 kernel/locking/rwsem.c:1537 ocfs2_start_trans+0x3ae/0x970 fs/ocfs2/journal.c:372 ocfs2_mknod+0xc19/0x2540 fs/ocfs2/namei.c:364 vfs_mknod+0x5da/0x8e0 fs/namei.c:4235 unix_bind_bsd net/unix/af_unix.c:1402 [inline] unix_bind+0x30a/0x1680 net/unix/af_unix.c:1495 __sys_bind_socket net/socket.c:1858 [inline] __sys_bind_socket net/socket.c:1850 [inline] __sys_bind+0x1a7/0x260 net/socket.c:1889 __do_sys_bind net/socket.c:1894 [inline] __se_sys_bind net/socket.c:1892 [inline] __x64_sys_bind+0x72/0xb0 net/socket.c:1892 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (sb_internal#3){.+.+}-{0:0}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x12a6/0x1ce0 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825 percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline] __sb_start_write include/linux/fs.h:1798 [inline] sb_start_intwrite include/linux/fs.h:1981 [inline] ocfs2_start_trans+0x29d/0x970 fs/ocfs2/journal.c:370 ocfs2_setattr+0x11c3/0x2560 fs/ocfs2/file.c:1263 notify_change+0x6a9/0x1230 fs/attr.c:552 ovl_do_notify_change fs/overlayfs/overlayfs.h:203 [inline] ovl_workdir_create+0x732/0xa40 fs/overlayfs/super.c:364 ovl_make_workdir fs/overlayfs/super.c:669 [inline] ovl_get_workdir fs/overlayfs/super.c:827 [inline] ovl_fill_super+0xe7e/0x6820 fs/overlayfs/super.c:1406 vfs_get_super fs/super.c:1325 [inline] get_tree_nodev+0xdd/0x190 fs/super.c:1344 vfs_get_tree+0x8e/0x340 fs/super.c:1815 do_new_mount fs/namespace.c:3808 [inline] path_mount+0x1513/0x2000 fs/namespace.c:4123 do_mount fs/namespace.c:4136 [inline] __do_sys_mount fs/namespace.c:4347 [inline] __se_sys_mount fs/namespace.c:4324 [inline] __x64_sys_mount+0x28d/0x310 fs/namespace.c:4324 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: sb_internal#3 --> &oi->ip_xattr_sem --> &ocfs2_file_ip_alloc_sem_key Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_file_ip_alloc_sem_key); lock(&oi->ip_xattr_sem); lock(&ocfs2_file_ip_alloc_sem_key); rlock(sb_internal#3); *** DEADLOCK *** 4 locks held by syz.1.1160/9896: #0: ffff888063ec00e0 (&type->s_umount_key#57/1){+.+.}-{4:4}, at: alloc_super+0x235/0xbd0 fs/super.c:345 #1: ffff88807f4f6428 (sb_writers#13){.+.+}-{0:0}, at: ovl_make_workdir fs/overlayfs/super.c:665 [inline] #1: ffff88807f4f6428 (sb_writers#13){.+.+}-{0:0}, at: ovl_get_workdir fs/overlayfs/super.c:827 [inline] #1: ffff88807f4f6428 (sb_writers#13){.+.+}-{0:0}, at: ovl_fill_super+0xe4f/0x6820 fs/overlayfs/super.c:1406 #2: ffff8880573a1800 (&sb->s_type->i_mutex_key#43){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:869 [inline] #2: ffff8880573a1800 (&sb->s_type->i_mutex_key#43){+.+.}-{4:4}, at: ovl_workdir_create+0x6bc/0xa40 fs/overlayfs/super.c:363 #3: ffff8880573a14a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}, at: ocfs2_setattr+0x11b2/0x2560 fs/ocfs2/file.c:1262 stack backtrace: CPU: 0 UID: 0 PID: 9896 Comm: syz.1.1160 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_circular_bug+0x275/0x350 kernel/locking/lockdep.c:2043 check_noncircular+0x14c/0x170 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x12a6/0x1ce0 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825 percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline] __sb_start_write include/linux/fs.h:1798 [inline] sb_start_intwrite include/linux/fs.h:1981 [inline] ocfs2_start_trans+0x29d/0x970 fs/ocfs2/journal.c:370 ocfs2_setattr+0x11c3/0x2560 fs/ocfs2/file.c:1263 notify_change+0x6a9/0x1230 fs/attr.c:552 ovl_do_notify_change fs/overlayfs/overlayfs.h:203 [inline] ovl_workdir_create+0x732/0xa40 fs/overlayfs/super.c:364 ovl_make_workdir fs/overlayfs/super.c:669 [inline] ovl_get_workdir fs/overlayfs/super.c:827 [inline] ovl_fill_super+0xe7e/0x6820 fs/overlayfs/super.c:1406 vfs_get_super fs/super.c:1325 [inline] get_tree_nodev+0xdd/0x190 fs/super.c:1344 vfs_get_tree+0x8e/0x340 fs/super.c:1815 do_new_mount fs/namespace.c:3808 [inline] path_mount+0x1513/0x2000 fs/namespace.c:4123 do_mount fs/namespace.c:4136 [inline] __do_sys_mount fs/namespace.c:4347 [inline] __se_sys_mount fs/namespace.c:4324 [inline] __x64_sys_mount+0x28d/0x310 fs/namespace.c:4324 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6d2058ebe9 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:00007f6d213c7038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f6d207b5fa0 RCX: 00007f6d2058ebe9 RDX: 0000200000000b80 RSI: 0000200000000100 RDI: 0000000000000000 RBP: 00007f6d20611e19 R08: 0000200000000140 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6d207b6038 R14: 00007f6d207b5fa0 R15: 00007ffd35297808 overlayfs: upper fs does not support tmpfile. overlayfs: upper fs does not support RENAME_WHITEOUT. overlayfs: failed to set xattr on upper overlayfs: ...falling back to redirect_dir=nofollow. overlayfs: ...falling back to index=off. overlayfs: ...falling back to uuid=null. overlayfs: upper fs missing required features.