loop0: detected capacity change from 0 to 1024 hfsplus: inconsistency in B*Tree (1792,1,255,1,0) hfsplus: xattr searching failed hfsplus: inconsistency in B*Tree (1792,1,255,1,0) hfsplus: xattr searching failed hfsplus: inconsistency in B*Tree (1792,1,255,1,0) ====================================================== WARNING: possible circular locking dependency detected 5.15.131-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor139/3503 is trying to acquire lock: ffff8880745e0e88 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x1d2/0x1b10 fs/hfsplus/extents.c:457 but task is already holding lock: ffff8880745ea0b0 (&tree->tree_lock/2){+.+.}-{3:3}, at: hfsplus_find_init+0x146/0x1c0 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&tree->tree_lock/2){+.+.}-{3:3}: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622 __mutex_lock_common+0x1da/0x25a0 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743 hfsplus_find_init+0x146/0x1c0 hfsplus_attr_exists+0xfb/0x1c0 fs/hfsplus/attributes.c:178 __hfsplus_setxattr+0x453/0x22c0 fs/hfsplus/xattr.c:336 hfsplus_setxattr+0xac/0xe0 fs/hfsplus/xattr.c:434 hfsplus_trusted_setxattr+0x3c/0x50 fs/hfsplus/xattr_trusted.c:30 __vfs_setxattr+0x3e7/0x420 fs/xattr.c:182 __vfs_setxattr_noperm+0x12a/0x5e0 fs/xattr.c:216 vfs_setxattr+0x21d/0x420 fs/xattr.c:303 do_setxattr fs/xattr.c:588 [inline] setxattr+0x27e/0x2e0 fs/xattr.c:611 path_setxattr+0x1bc/0x2a0 fs/xattr.c:630 __do_sys_lsetxattr fs/xattr.c:653 [inline] __se_sys_lsetxattr fs/xattr.c:649 [inline] __x64_sys_lsetxattr+0xb4/0xd0 fs/xattr.c:649 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb -> #1 (&tree->tree_lock){+.+.}-{3:3}: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622 __mutex_lock_common+0x1da/0x25a0 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743 hfsplus_file_truncate+0x864/0xb80 fs/hfsplus/extents.c:595 hfsplus_setattr+0x1b9/0x280 fs/hfsplus/inode.c:267 notify_change+0xd4d/0x1000 fs/attr.c:489 do_truncate+0x21c/0x300 fs/open.c:65 handle_truncate fs/namei.c:3195 [inline] do_open fs/namei.c:3542 [inline] path_openat+0x28a0/0x2f20 fs/namei.c:3672 do_filp_open+0x21c/0x460 fs/namei.c:3699 do_sys_openat2+0x13b/0x500 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1238 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb -> #0 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain+0x1646/0x58b0 kernel/locking/lockdep.c:3787 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5011 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622 __mutex_lock_common+0x1da/0x25a0 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743 hfsplus_file_extend+0x1d2/0x1b10 fs/hfsplus/extents.c:457 hfsplus_bmap_reserve+0x101/0x4e0 fs/hfsplus/btree.c:357 hfsplus_create_attr+0x1c4/0x630 fs/hfsplus/attributes.c:221 __hfsplus_setxattr+0x6ed/0x22c0 fs/hfsplus/xattr.c:354 hfsplus_setxattr+0xac/0xe0 fs/hfsplus/xattr.c:434 hfsplus_trusted_setxattr+0x3c/0x50 fs/hfsplus/xattr_trusted.c:30 __vfs_setxattr+0x3e7/0x420 fs/xattr.c:182 __vfs_setxattr_noperm+0x12a/0x5e0 fs/xattr.c:216 vfs_setxattr+0x21d/0x420 fs/xattr.c:303 do_setxattr fs/xattr.c:588 [inline] setxattr+0x27e/0x2e0 fs/xattr.c:611 path_setxattr+0x1bc/0x2a0 fs/xattr.c:630 __do_sys_lsetxattr fs/xattr.c:653 [inline] __se_sys_lsetxattr fs/xattr.c:649 [inline] __x64_sys_lsetxattr+0xb4/0xd0 fs/xattr.c:649 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb other info that might help us debug this: Chain exists of: &HFSPLUS_I(inode)->extents_lock --> &tree->tree_lock --> &tree->tree_lock/2 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&tree->tree_lock/2); lock(&tree->tree_lock); lock(&tree->tree_lock/2); lock(&HFSPLUS_I(inode)->extents_lock); *** DEADLOCK *** 4 locks held by syz-executor139/3503: #0: ffff88807862e460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377 #1: ffff888078021080 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff888078021080 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}, at: vfs_setxattr+0x1dd/0x420 fs/xattr.c:302 #2: ffff88807800c0b0 (&tree->tree_lock){+.+.}-{3:3}, at: hfsplus_find_init+0x146/0x1c0 #3: ffff8880745ea0b0 (&tree->tree_lock/2){+.+.}-{3:3}, at: hfsplus_find_init+0x146/0x1c0 stack backtrace: CPU: 0 PID: 3503 Comm: syz-executor139 Not tainted 5.15.131-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb 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+0x1646/0x58b0 kernel/locking/lockdep.c:3787 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5011 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622 __mutex_lock_common+0x1da/0x25a0 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743 hfsplus_file_extend+0x1d2/0x1b10 fs/hfsplus/extents.c:457 hfsplus_bmap_reserve+0x101/0x4e0 fs/hfsplus/btree.c:357 hfsplus_create_attr+0x1c4/0x630 fs/hfsplus/attributes.c:221 __hfsplus_setxattr+0x6ed/0x22c0 fs/hfsplus/xattr.c:354 hfsplus_setxattr+0xac/0xe0 fs/hfsplus/xattr.c:434 hfsplus_trusted_setxattr+0x3c/0x50 fs/hfsplus/xattr_trusted.c:30 __vfs_setxattr+0x3e7/0x420 fs/xattr.c:182 __vfs_setxattr_noperm+0x12a/0x5e0 fs/xattr.c:216 vfs_setxattr+0x21d/0x420 fs/xattr.c:303 do_setxattr fs/xattr.c:588 [inline] setxattr+0x27e/0x2e0 fs/xattr.c:611 path_setxattr+0x1bc/0x2a0 fs/xattr.c:630 __do_sys_lsetxattr fs/xattr.c:653 [inline] __se_sys_lsetxattr fs/xattr.c:649 [inline] __x64_sys_lsetxattr+0xb4/0xd0 fs/xattr.c:649 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f8a88541a99 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:00007ffc6e8bb0d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f8a88541a99 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000020000040 RBP: 00007f8a885b55f0 R08: 0000000000000000 R09: 000055555634d4c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc6e8bb100 R13: 00007ffc6e8bb328 R14: 431bde82d7b634db R15: 00007f8a8858a03b hfsplus: inconsistency in B*Tree (2,0,1,0,1)