loop4: detected capacity change from 0 to 32768 ocfs2: Mounting device (7,4) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.13.0-rc2-syzkaller-00159-gf932fb9b4074 #0 Not tainted ------------------------------------------------------ syz.4.901/11041 is trying to acquire lock: ffff888024fe2610 (sb_internal#5){.+.+}-{0:0}, at: ocfs2_setattr+0x11d6/0x2570 fs/ocfs2/file.c:1263 but task is already holding lock: ffff8880551f94a0 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x11c5/0x2570 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}: down_write+0x93/0x200 kernel/locking/rwsem.c:1577 ocfs2_try_remove_refcount_tree+0xa8/0x320 fs/ocfs2/refcounttree.c:932 ocfs2_xattr_set+0x103c/0x2a30 fs/ocfs2/xattr.c:3669 ocfs2_set_acl+0x46c/0x550 fs/ocfs2/acl.c:254 ocfs2_iop_set_acl+0x225/0x2d0 fs/ocfs2/acl.c:286 set_posix_acl+0x25f/0x320 fs/posix_acl.c:954 vfs_remove_acl+0x33f/0x650 fs/posix_acl.c:1241 ovl_do_remove_acl fs/overlayfs/overlayfs.h:352 [inline] ovl_workdir_create+0x4a5/0x820 fs/overlayfs/super.c:334 ovl_make_workdir fs/overlayfs/super.c:650 [inline] ovl_get_workdir fs/overlayfs/super.c:808 [inline] ovl_fill_super+0xe6b/0x6720 fs/overlayfs/super.c:1376 vfs_get_super fs/super.c:1280 [inline] get_tree_nodev+0xdd/0x190 fs/super.c:1299 vfs_get_tree+0x92/0x380 fs/super.c:1814 do_new_mount fs/namespace.c:3507 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3834 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount fs/namespace.c:4034 [inline] __x64_sys_mount+0x294/0x320 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: down_read+0x9a/0x330 kernel/locking/rwsem.c:1524 ocfs2_init_acl+0x2fd/0x7d0 fs/ocfs2/acl.c:366 ocfs2_mknod+0xd0a/0x2440 fs/ocfs2/namei.c:410 ocfs2_mkdir+0x185/0x450 fs/ocfs2/namei.c:657 vfs_mkdir+0x580/0x860 fs/namei.c:4311 do_mkdirat+0x301/0x3a0 fs/namei.c:4334 __do_sys_mkdirat fs/namei.c:4349 [inline] __se_sys_mkdirat fs/namei.c:4347 [inline] __x64_sys_mkdirat+0x83/0xb0 fs/namei.c:4347 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (jbd2_handle){++++}-{0:0}: start_this_handle+0xf92/0x1430 fs/jbd2/transaction.c:448 jbd2__journal_start+0x394/0x6a0 fs/jbd2/transaction.c:505 jbd2_journal_start+0x29/0x40 fs/jbd2/transaction.c:544 ocfs2_start_trans+0x3b9/0x970 fs/ocfs2/journal.c:352 ocfs2_mknod+0xbcf/0x2440 fs/ocfs2/namei.c:361 ocfs2_mkdir+0x185/0x450 fs/ocfs2/namei.c:657 vfs_mkdir+0x580/0x860 fs/namei.c:4311 do_mkdirat+0x301/0x3a0 fs/namei.c:4334 __do_sys_mkdirat fs/namei.c:4349 [inline] __se_sys_mkdirat fs/namei.c:4347 [inline] __x64_sys_mkdirat+0x83/0xb0 fs/namei.c:4347 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: down_read+0x9a/0x330 kernel/locking/rwsem.c:1524 ocfs2_start_trans+0x3ae/0x970 fs/ocfs2/journal.c:350 ocfs2_mknod+0xbcf/0x2440 fs/ocfs2/namei.c:361 ocfs2_mkdir+0x185/0x450 fs/ocfs2/namei.c:657 vfs_mkdir+0x580/0x860 fs/namei.c:4311 do_mkdirat+0x301/0x3a0 fs/namei.c:4334 __do_sys_mkdirat fs/namei.c:4349 [inline] __se_sys_mkdirat fs/namei.c:4347 [inline] __x64_sys_mkdirat+0x83/0xb0 fs/namei.c:4347 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (sb_internal#5){.+.+}-{0:0}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1725 [inline] sb_start_intwrite include/linux/fs.h:1908 [inline] ocfs2_start_trans+0x29d/0x970 fs/ocfs2/journal.c:348 ocfs2_setattr+0x11d6/0x2570 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+0x663/0x820 fs/overlayfs/super.c:344 ovl_make_workdir fs/overlayfs/super.c:650 [inline] ovl_get_workdir fs/overlayfs/super.c:808 [inline] ovl_fill_super+0xe6b/0x6720 fs/overlayfs/super.c:1376 vfs_get_super fs/super.c:1280 [inline] get_tree_nodev+0xdd/0x190 fs/super.c:1299 vfs_get_tree+0x92/0x380 fs/super.c:1814 do_new_mount fs/namespace.c:3507 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3834 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount fs/namespace.c:4034 [inline] __x64_sys_mount+0x294/0x320 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 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#5 --> &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#5); *** DEADLOCK *** 5 locks held by syz.4.901/11041: #0: ffff88805b9a00e0 (&type->s_umount_key#48/1){+.+.}-{4:4}, at: alloc_super+0x23d/0xbd0 fs/super.c:344 #1: ffff888024fe2420 (sb_writers#32){.+.+}-{0:0}, at: ovl_make_workdir fs/overlayfs/super.c:646 [inline] #1: ffff888024fe2420 (sb_writers#32){.+.+}-{0:0}, at: ovl_get_workdir fs/overlayfs/super.c:808 [inline] #1: ffff888024fe2420 (sb_writers#32){.+.+}-{0:0}, at: ovl_fill_super+0xe3c/0x6720 fs/overlayfs/super.c:1376 #2: ffff888055265100 (&sb->s_type->i_mutex_key#36/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:853 [inline] #2: ffff888055265100 (&sb->s_type->i_mutex_key#36/1){+.+.}-{4:4}, at: ovl_workdir_create+0x13e/0x820 fs/overlayfs/super.c:284 #3: ffff8880551f9800 (&sb->s_type->i_mutex_key#38){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #3: ffff8880551f9800 (&sb->s_type->i_mutex_key#38){+.+.}-{4:4}, at: ovl_workdir_create+0x5e8/0x820 fs/overlayfs/super.c:343 #4: ffff8880551f94a0 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x11c5/0x2570 fs/ocfs2/file.c:1262 stack backtrace: CPU: 0 UID: 0 PID: 11041 Comm: syz.4.901 Not tainted 6.13.0-rc2-syzkaller-00159-gf932fb9b4074 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_circular_bug+0x419/0x5d0 kernel/locking/lockdep.c:2074 check_noncircular+0x31a/0x400 kernel/locking/lockdep.c:2206 check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1725 [inline] sb_start_intwrite include/linux/fs.h:1908 [inline] ocfs2_start_trans+0x29d/0x970 fs/ocfs2/journal.c:348 ocfs2_setattr+0x11d6/0x2570 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+0x663/0x820 fs/overlayfs/super.c:344 ovl_make_workdir fs/overlayfs/super.c:650 [inline] ovl_get_workdir fs/overlayfs/super.c:808 [inline] ovl_fill_super+0xe6b/0x6720 fs/overlayfs/super.c:1376 vfs_get_super fs/super.c:1280 [inline] get_tree_nodev+0xdd/0x190 fs/super.c:1299 vfs_get_tree+0x92/0x380 fs/super.c:1814 do_new_mount fs/namespace.c:3507 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3834 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount fs/namespace.c:4034 [inline] __x64_sys_mount+0x294/0x320 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f37ce185d19 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:00007f37cef4b038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f37ce375fa0 RCX: 00007f37ce185d19 RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000 RBP: 00007f37ce201a20 R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f37ce375fa0 R15: 00007ffec4660988 overlayfs: upper fs does not support tmpfile. overlayfs: upper fs does not support RENAME_WHITEOUT. overlayfs: upper fs missing required features. ocfs2: Unmounting device (7,4) on (node local)