loop1: detected capacity change from 0 to 1024 ====================================================== WARNING: possible circular locking dependency detected 5.15.157-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.1/12872 is trying to acquire lock: ffff88804328a0b0 (&tree->tree_lock#2/2){+.+.}-{3:3}, at: hfsplus_find_init+0x146/0x1c0 but task is already holding lock: ffff8880432880b0 (&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:5623 __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_write_begin+0xce/0xd0 fs/hfsplus/inode.c:57 cont_expand_zero fs/buffer.c:2398 [inline] cont_write_begin+0x2ad/0x840 fs/buffer.c:2461 hfsplus_write_begin+0x92/0xd0 fs/hfsplus/inode.c:53 generic_cont_expand_simple+0x144/0x230 fs/buffer.c:2362 hfsplus_setattr+0x169/0x280 fs/hfsplus/inode.c:261 notify_change+0xc6d/0xf50 fs/attr.c:505 do_truncate+0x21c/0x300 fs/open.c:65 vfs_truncate+0x2dd/0x3a0 fs/open.c:111 do_sys_truncate+0xda/0x190 fs/open.c:134 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 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __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_get_block+0x37f/0x14e0 fs/hfsplus/extents.c:260 block_read_full_page+0x2f9/0xde0 fs/buffer.c:2290 do_read_cache_page+0x752/0x1040 read_mapping_page include/linux/pagemap.h:515 [inline] __hfs_bnode_create+0x4f2/0xbb0 fs/hfsplus/bnode.c:447 hfsplus_bnode_find+0x22e/0xe80 fs/hfsplus/bnode.c:497 hfsplus_brec_find+0x17f/0x570 fs/hfsplus/bfind.c:183 __hfsplus_getxattr+0x360/0xb10 fs/hfsplus/xattr.c:522 hfsplus_getxattr+0x98/0xd0 fs/hfsplus/xattr.c:590 vfs_getxattr_alloc+0x449/0x590 fs/xattr.c:374 ima_read_xattr+0x35/0x60 security/integrity/ima/ima_appraise.c:221 process_measurement+0x117d/0x21c0 security/integrity/ima/ima_main.c:333 ima_file_check+0xf3/0x180 security/integrity/ima/ima_main.c:533 do_open fs/namei.c:3610 [inline] path_openat+0x2748/0x2f20 fs/namei.c:3742 do_filp_open+0x21c/0x460 fs/namei.c:3769 do_sys_openat2+0x13b/0x500 fs/open.c:1253 do_sys_open fs/open.c:1269 [inline] __do_sys_openat fs/open.c:1285 [inline] __se_sys_openat fs/open.c:1280 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1280 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 (&tree->tree_lock#2/2){+.+.}-{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 __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 __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_setxattr fs/xattr.c:646 [inline] __se_sys_setxattr fs/xattr.c:642 [inline] __x64_sys_setxattr+0xb7/0xd0 fs/xattr.c:642 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: &tree->tree_lock#2/2 --> &HFSPLUS_I(inode)->extents_lock --> &tree->tree_lock#2 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&tree->tree_lock#2); lock(&HFSPLUS_I(inode)->extents_lock); lock(&tree->tree_lock#2); lock(&tree->tree_lock#2/2); *** DEADLOCK *** 3 locks held by syz-executor.1/12872: #0: ffff888043284460 (sb_writers#28){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377 #1: ffff88807d15dac0 (&type->i_mutex_dir_key#21){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #1: ffff88807d15dac0 (&type->i_mutex_dir_key#21){++++}-{3:3}, at: vfs_setxattr+0x1dd/0x420 fs/xattr.c:302 #2: ffff8880432880b0 (&tree->tree_lock#2){+.+.}-{3:3}, at: hfsplus_find_init+0x146/0x1c0 stack backtrace: CPU: 1 PID: 12872 Comm: syz-executor.1 Not tainted 5.15.157-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 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 __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 __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_setxattr fs/xattr.c:646 [inline] __se_sys_setxattr fs/xattr.c:642 [inline] __x64_sys_setxattr+0xb7/0xd0 fs/xattr.c:642 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: 0033:0x7f16a4cdaea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f16a324d0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007f16a4e08f80 RCX: 00007f16a4cdaea9 RDX: 0000000000000000 RSI: 0000000020000380 RDI: 0000000020000040 RBP: 00007f16a4d274a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f16a4e08f80 R15: 00007ffc83e08c48