loop1: detected capacity change from 0 to 1024
======================================================
WARNING: possible circular locking dependency detected
5.15.119-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.1/7971 is trying to acquire lock:
ffff0001215a1fa0 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:842 [inline]
ffff0001215a1fa0 (mapping.invalidate_lock#4){.+.+}-{3:3}, at: filemap_fault+0x52c/0xf5c mm/filemap.c:3072

but task is already holding lock:
ffff0000d819d758 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
ffff0000d819d758 (&mm->mmap_lock){++++}-{3:3}, at: do_page_fault+0x380/0xb60 arch/arm64/mm/fault.c:586

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (&mm->mmap_lock){++++}-{3:3}:
       __might_fault+0xc8/0x128 mm/memory.c:5311
       filldir64+0x2bc/0x9e4 fs/readdir.c:335
       dir_emit_dot include/linux/fs.h:3605 [inline]
       hfsplus_readdir+0x398/0xf68 fs/hfsplus/dir.c:159
       iterate_dir+0x1f4/0x4e4
       __do_sys_getdents64 fs/readdir.c:369 [inline]
       __se_sys_getdents64 fs/readdir.c:354 [inline]
       __arm64_sys_getdents64+0x1c4/0x4c4 fs/readdir.c:354
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
       el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #2 (&tree->tree_lock){+.+.}-{3:3}:
       __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
       hfsplus_file_truncate+0x6d4/0x9cc fs/hfsplus/extents.c:595
       hfsplus_setattr+0x18c/0x25c fs/hfsplus/inode.c:267
       notify_change+0xac4/0xd60 fs/attr.c:488
       do_truncate+0x1c0/0x28c fs/open.c:65
       vfs_truncate+0x2e0/0x388 fs/open.c:111
       do_sys_truncate+0xec/0x1b4 fs/open.c:134
       __do_sys_truncate fs/open.c:146 [inline]
       __se_sys_truncate fs/open.c:144 [inline]
       __arm64_sys_truncate+0x5c/0x70 fs/open.c:144
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
       el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #1 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}:
       __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
       hfsplus_get_block+0x2c4/0x1194 fs/hfsplus/extents.c:260
       block_read_full_page+0x2a0/0xc4c fs/buffer.c:2290
       hfsplus_readpage+0x28/0x38 fs/hfsplus/inode.c:28
       read_pages+0x298/0x420 mm/readahead.c:145
       page_cache_ra_unbounded+0x534/0x654 mm/readahead.c:239
       do_page_cache_ra mm/readahead.c:269 [inline]
       ondemand_readahead+0x62c/0xd0c mm/readahead.c:552
       page_cache_sync_ra+0x130/0x180 mm/readahead.c:580
       page_cache_sync_readahead include/linux/pagemap.h:833 [inline]
       filemap_get_pages mm/filemap.c:2551 [inline]
       filemap_read+0x52c/0x1bd4 mm/filemap.c:2634
       generic_file_read_iter+0xa0/0x3c4 mm/filemap.c:2785
       __kernel_read+0x488/0x8b0 fs/read_write.c:443
       kernel_read+0xd8/0x1d4 fs/read_write.c:461
       prepare_binprm fs/exec.c:1664 [inline]
       search_binary_handler fs/exec.c:1718 [inline]
       exec_binprm fs/exec.c:1775 [inline]
       bprm_execve+0x740/0x1578 fs/exec.c:1844
       do_execveat_common+0x668/0x814 fs/exec.c:1949
       do_execve fs/exec.c:2019 [inline]
       __do_sys_execve fs/exec.c:2095 [inline]
       __se_sys_execve fs/exec.c:2090 [inline]
       __arm64_sys_execve+0x98/0xb0 fs/exec.c:2090
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
       el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #0 (mapping.invalidate_lock#4){.+.+}-{3:3}:
       check_prev_add kernel/locking/lockdep.c:3053 [inline]
       check_prevs_add kernel/locking/lockdep.c:3172 [inline]
       validate_chain kernel/locking/lockdep.c:3787 [inline]
       __lock_acquire+0x32cc/0x7620 kernel/locking/lockdep.c:5011
       lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5622
       down_read+0xc0/0x398 kernel/locking/rwsem.c:1488
       filemap_invalidate_lock_shared include/linux/fs.h:842 [inline]
       filemap_fault+0x52c/0xf5c mm/filemap.c:3072
       __do_fault+0x120/0x5d0 mm/memory.c:3885
       do_read_fault mm/memory.c:4221 [inline]
       do_fault mm/memory.c:4349 [inline]
       handle_pte_fault mm/memory.c:4608 [inline]
       __handle_mm_fault mm/memory.c:4743 [inline]
       handle_mm_fault+0x21ec/0x33c4 mm/memory.c:4841
       __do_page_fault arch/arm64/mm/fault.c:505 [inline]
       do_page_fault+0x700/0xb60 arch/arm64/mm/fault.c:605
       do_translation_fault+0xe8/0x138 arch/arm64/mm/fault.c:686
       do_mem_abort+0x70/0x1d8 arch/arm64/mm/fault.c:819
       el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:358
       el1h_64_sync_handler+0x5c/0x98 arch/arm64/kernel/entry-common.c:409
       el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:579
       do_strncpy_from_user lib/strncpy_from_user.c:41 [inline]
       strncpy_from_user+0x240/0x580 lib/strncpy_from_user.c:139
       getname_flags+0x104/0x480 fs/namei.c:149
       getname+0x28/0x38 fs/namei.c:217
       do_sys_openat2+0xd4/0x3d8 fs/open.c:1205
       do_sys_open fs/open.c:1227 [inline]
       __do_sys_openat fs/open.c:1243 [inline]
       __se_sys_openat fs/open.c:1238 [inline]
       __arm64_sys_openat+0x1f0/0x240 fs/open.c:1238
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
       el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

other info that might help us debug this:

Chain exists of:
  mapping.invalidate_lock#4 --> &tree->tree_lock --> &mm->mmap_lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&mm->mmap_lock);
                               lock(&tree->tree_lock);
                               lock(&mm->mmap_lock);
  lock(mapping.invalidate_lock#4);

 *** DEADLOCK ***

1 lock held by syz-executor.1/7971:
 #0: ffff0000d819d758 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
 #0: ffff0000d819d758 (&mm->mmap_lock){++++}-{3:3}, at: do_page_fault+0x380/0xb60 arch/arm64/mm/fault.c:586

stack backtrace:
CPU: 1 PID: 7971 Comm: syz-executor.1 Not tainted 5.15.119-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2011
 check_noncircular+0x2cc/0x378 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 kernel/locking/lockdep.c:3787 [inline]
 __lock_acquire+0x32cc/0x7620 kernel/locking/lockdep.c:5011
 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5622
 down_read+0xc0/0x398 kernel/locking/rwsem.c:1488
 filemap_invalidate_lock_shared include/linux/fs.h:842 [inline]
 filemap_fault+0x52c/0xf5c mm/filemap.c:3072
 __do_fault+0x120/0x5d0 mm/memory.c:3885
 do_read_fault mm/memory.c:4221 [inline]
 do_fault mm/memory.c:4349 [inline]
 handle_pte_fault mm/memory.c:4608 [inline]
 __handle_mm_fault mm/memory.c:4743 [inline]
 handle_mm_fault+0x21ec/0x33c4 mm/memory.c:4841
 __do_page_fault arch/arm64/mm/fault.c:505 [inline]
 do_page_fault+0x700/0xb60 arch/arm64/mm/fault.c:605
 do_translation_fault+0xe8/0x138 arch/arm64/mm/fault.c:686
 do_mem_abort+0x70/0x1d8 arch/arm64/mm/fault.c:819
 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:358
 el1h_64_sync_handler+0x5c/0x98 arch/arm64/kernel/entry-common.c:409
 el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:579
 do_strncpy_from_user lib/strncpy_from_user.c:41 [inline]
 strncpy_from_user+0x240/0x580 lib/strncpy_from_user.c:139
 getname_flags+0x104/0x480 fs/namei.c:149
 getname+0x28/0x38 fs/namei.c:217
 do_sys_openat2+0xd4/0x3d8 fs/open.c:1205
 do_sys_open fs/open.c:1227 [inline]
 __do_sys_openat fs/open.c:1243 [inline]
 __se_sys_openat fs/open.c:1238 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1238
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584