ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.14.0-rc2-syzkaller-00039-g09fbf3d50205 #0 Not tainted ------------------------------------------------------ syz-executor288/5826 is trying to acquire lock: ffff88807b892610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_setattr+0x9dd/0x1ef0 fs/ocfs2/file.c:1263 but task is already holding lock: ffff88807ab7dbe0 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x9d0/0x1ef0 fs/ocfs2/file.c:1262 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&oi->ip_alloc_sem){+.+.}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 ocfs2_try_remove_refcount_tree+0xb6/0x330 fs/ocfs2/refcounttree.c:932 ocfs2_xattr_set+0xa4f/0x1930 fs/ocfs2/xattr.c:3669 ocfs2_set_acl+0x4cb/0x580 fs/ocfs2/acl.c:254 ocfs2_iop_set_acl+0x24a/0x3c0 fs/ocfs2/acl.c:286 set_posix_acl fs/posix_acl.c:954 [inline] vfs_remove_acl+0x4cb/0x770 fs/posix_acl.c:1241 ovl_do_remove_acl fs/overlayfs/overlayfs.h:352 [inline] ovl_workdir_create+0x52f/0x980 fs/overlayfs/super.c:352 ovl_make_workdir fs/overlayfs/super.c:668 [inline] ovl_get_workdir+0x311/0x1930 fs/overlayfs/super.c:826 ovl_fill_super+0x12a8/0x3560 fs/overlayfs/super.c:1394 vfs_get_super fs/super.c:1280 [inline] get_tree_nodev+0xb7/0x140 fs/super.c:1299 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3560 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 ocfs2_init_acl+0x397/0x930 fs/ocfs2/acl.c:366 ocfs2_mknod+0x1c05/0x2b30 fs/ocfs2/namei.c:410 ocfs2_mkdir+0x1ab/0x470 fs/ocfs2/namei.c:656 vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4313 do_mkdirat+0x264/0x3a0 fs/namei.c:4336 __do_sys_mkdir fs/namei.c:4356 [inline] __se_sys_mkdir fs/namei.c:4354 [inline] __x64_sys_mkdir+0x6c/0x80 fs/namei.c:4354 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (jbd2_handle){.+.+}-{0:0}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 start_this_handle+0x1eb4/0x2110 fs/jbd2/transaction.c:448 jbd2__journal_start+0x2da/0x5d0 fs/jbd2/transaction.c:505 jbd2_journal_start+0x29/0x40 fs/jbd2/transaction.c:544 ocfs2_start_trans+0x3c9/0x700 fs/ocfs2/journal.c:352 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:685 [inline] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 fs/ocfs2/suballoc.c:832 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_mknod+0x143a/0x2b30 fs/ocfs2/namei.c:347 ocfs2_mkdir+0x1ab/0x470 fs/ocfs2/namei.c:656 vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4313 do_mkdirat+0x264/0x3a0 fs/namei.c:4336 __do_sys_mkdir fs/namei.c:4356 [inline] __se_sys_mkdir fs/namei.c:4354 [inline] __x64_sys_mkdir+0x6c/0x80 fs/namei.c:4354 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 ocfs2_start_trans+0x3be/0x700 fs/ocfs2/journal.c:350 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:685 [inline] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 fs/ocfs2/suballoc.c:832 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_mknod+0x143a/0x2b30 fs/ocfs2/namei.c:347 ocfs2_mkdir+0x1ab/0x470 fs/ocfs2/namei.c:656 vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4313 do_mkdirat+0x264/0x3a0 fs/namei.c:4336 __do_sys_mkdir fs/namei.c:4356 [inline] __se_sys_mkdir fs/namei.c:4354 [inline] __x64_sys_mkdir+0x6c/0x80 fs/namei.c:4354 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (sb_internal#2){.+.+}-{0:0}: check_prev_add kernel/locking/lockdep.c:3163 [inline] check_prevs_add kernel/locking/lockdep.c:3282 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1785 [inline] sb_start_intwrite include/linux/fs.h:1968 [inline] ocfs2_start_trans+0x2b9/0x700 fs/ocfs2/journal.c:348 ocfs2_setattr+0x9dd/0x1ef0 fs/ocfs2/file.c:1263 notify_change+0xbca/0xe90 fs/attr.c:552 ovl_do_notify_change fs/overlayfs/overlayfs.h:203 [inline] ovl_workdir_create+0x782/0x980 fs/overlayfs/super.c:362 ovl_make_workdir fs/overlayfs/super.c:668 [inline] ovl_get_workdir+0x311/0x1930 fs/overlayfs/super.c:826 ovl_fill_super+0x12a8/0x3560 fs/overlayfs/super.c:1394 vfs_get_super fs/super.c:1280 [inline] get_tree_nodev+0xb7/0x140 fs/super.c:1299 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3560 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: sb_internal#2 --> &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); rlock(sb_internal#2); *** DEADLOCK *** 5 locks held by syz-executor288/5826: #0: ffff88806e3ce0e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 fs/super.c:344 #1: ffff88807b892420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:547 #2: ffff888074816d80 (&sb->s_type->i_mutex_key#14/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:912 [inline] #2: ffff888074816d80 (&sb->s_type->i_mutex_key#14/1){+.+.}-{4:4}, at: ovl_workdir_create+0x160/0x980 fs/overlayfs/super.c:302 #3: ffff88807ab7df40 (&sb->s_type->i_mutex_key#16){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline] #3: ffff88807ab7df40 (&sb->s_type->i_mutex_key#16){+.+.}-{4:4}, at: ovl_workdir_create+0x6e3/0x980 fs/overlayfs/super.c:361 #4: ffff88807ab7dbe0 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x9d0/0x1ef0 fs/ocfs2/file.c:1262 stack backtrace: CPU: 0 UID: 0 PID: 5826 Comm: syz-executor288 Not tainted 6.14.0-rc2-syzkaller-00039-g09fbf3d50205 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2076 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2208 check_prev_add kernel/locking/lockdep.c:3163 [inline] check_prevs_add kernel/locking/lockdep.c:3282 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1785 [inline] sb_start_intwrite include/linux/fs.h:1968 [inline] ocfs2_start_trans+0x2b9/0x700 fs/ocfs2/journal.c:348 ocfs2_setattr+0x9dd/0x1ef0 fs/ocfs2/file.c:1263 notify_change+0xbca/0xe90 fs/attr.c:552 ovl_do_notify_change fs/overlayfs/overlayfs.h:203 [inline] ovl_workdir_create+0x782/0x980 fs/overlayfs/super.c:362 ovl_make_workdir fs/overlayfs/super.c:668 [inline] ovl_get_workdir+0x311/0x1930 fs/overlayfs/super.c:826 ovl_fill_super+0x12a8/0x3560 fs/overlayfs/super.c:1394 vfs_get_super fs/super.c:1280 [inline] get_tree_nodev+0xb7/0x140 fs/super.c:1299 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3560 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd6cb99a559 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd8a756fd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd6cb99a559 RDX: 0000400000000000 RSI: 0000400000000040 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000400000000100 R09: 00007ffd8a757010 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd8a757010 R13: 00007ffd8a757298 R14: 431bde82d7b634db R15: 00007fd6cb9e303b overlayfs: upper fs does not support tmpfile. overlayfs: upper fs does not support RENAME_WHITEOUT. overlayfs: upper fs missing required features.