============================================ WARNING: possible recursive locking detected 6.12.0-syzkaller-09073-g9f16d5e6f220 #0 Not tainted -------------------------------------------- syz-executor150/5835 is trying to acquire lock: ffff88807e169548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_get_block+0x383/0x14f0 fs/hfsplus/extents.c:260 but task is already holding lock: ffff88805f0b07c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x30a/0xc70 fs/hfsplus/extents.c:577 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&HFSPLUS_I(inode)->extents_lock); lock(&HFSPLUS_I(inode)->extents_lock); *** DEADLOCK *** May be due to missing lock nesting notation 6 locks held by syz-executor150/5835: #0: ffff888031344420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515 #1: ffff88807e16ab78 (&type->i_mutex_dir_key#6/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:853 [inline] #1: ffff88807e16ab78 (&type->i_mutex_dir_key#6/1){+.+.}-{4:4}, at: do_unlinkat+0x26a/0x830 fs/namei.c:4574 #2: ffff88805f0b09b8 (&sb->s_type->i_mutex_key#14){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #2: ffff88805f0b09b8 (&sb->s_type->i_mutex_key#14){+.+.}-{4:4}, at: vfs_unlink+0xe4/0x650 fs/namei.c:4512 #3: ffff888028358998 (&sbi->vh_mutex){+.+.}-{4:4}, at: hfsplus_unlink+0x161/0x790 fs/hfsplus/dir.c:370 #4: ffff88805f0b07c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x30a/0xc70 fs/hfsplus/extents.c:577 #5: ffff8880283588f8 (&sbi->alloc_mutex){+.+.}-{4:4}, at: hfsplus_block_free+0xbb/0x4e0 fs/hfsplus/bitmap.c:182 stack backtrace: CPU: 1 UID: 0 PID: 5835 Comm: syz-executor150 Not tainted 6.12.0-syzkaller-09073-g9f16d5e6f220 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_deadlock_bug+0x483/0x620 kernel/locking/lockdep.c:3037 check_deadlock kernel/locking/lockdep.c:3089 [inline] validate_chain+0x15e2/0x5920 kernel/locking/lockdep.c:3891 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735 hfsplus_get_block+0x383/0x14f0 fs/hfsplus/extents.c:260 block_read_full_folio+0x418/0xcd0 fs/buffer.c:2396 filemap_read_folio+0x14b/0x630 mm/filemap.c:2366 do_read_cache_folio+0x3f5/0x850 mm/filemap.c:3826 do_read_cache_page+0x30/0x200 mm/filemap.c:3892 read_mapping_page include/linux/pagemap.h:1005 [inline] hfsplus_block_free+0x128/0x4e0 fs/hfsplus/bitmap.c:185 hfsplus_free_extents+0x17a/0xae0 fs/hfsplus/extents.c:363 hfsplus_file_truncate+0x86c/0xc70 fs/hfsplus/extents.c:592 hfsplus_delete_inode+0x174/0x220 hfsplus_unlink+0x512/0x790 fs/hfsplus/dir.c:405 vfs_unlink+0x365/0x650 fs/namei.c:4523 do_unlinkat+0x4ae/0x830 fs/namei.c:4587 __do_sys_unlink fs/namei.c:4635 [inline] __se_sys_unlink fs/namei.c:4633 [inline] __x64_sys_unlink+0x47/0x50 fs/namei.c:4633 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: 0033:0x7f4d1a2b9b57 Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 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:00007fff085c4f78 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4d1a2b9b57 RDX: 00007fff085c4fa0 RSI: 00007fff085c5030 RDI: 00007fff085c5030 RBP: 00007fff085c5030 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff085c6120 R13: 0000555578e93740 R14: 0000000000000001 R15: 431bde82d7b634db hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent hfsplus: unable to mark blocks free: error -5 hfsplus: can't free extent