ntfs3: loop5: Different NTFS sector size (4096) and media sector size (512). ====================================================== WARNING: possible circular locking dependency detected 6.4.0-rc7-syzkaller-ge40939bbfc68 #0 Not tainted ------------------------------------------------------ syz-executor.5/11888 is trying to acquire lock: ffff00011efc0100 (&ni->ni_lock#2/4){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1121 [inline] ffff00011efc0100 (&ni->ni_lock#2/4){+.+.}-{3:3}, at: ntfs_fallocate+0x644/0xe38 fs/ntfs3/file.c:547 but task is already holding lock: ffff00011efc0540 (mapping.invalidate_lock#5){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline] ffff00011efc0540 (mapping.invalidate_lock#5){++++}-{3:3}, at: ntfs_fallocate+0x35c/0xe38 fs/ntfs3/file.c:483 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (mapping.invalidate_lock#5){++++}-{3:3}: down_read+0x58/0x2fc kernel/locking/rwsem.c:1520 filemap_invalidate_lock_shared include/linux/fs.h:830 [inline] filemap_fault+0x54c/0x1154 mm/filemap.c:3277 __do_fault+0x11c/0x3d8 mm/memory.c:4176 do_read_fault mm/memory.c:4530 [inline] do_fault mm/memory.c:4659 [inline] do_pte_missing mm/memory.c:3647 [inline] handle_pte_fault mm/memory.c:4947 [inline] __handle_mm_fault mm/memory.c:5089 [inline] handle_mm_fault+0x32cc/0x48ec mm/memory.c:5243 __do_page_fault arch/arm64/mm/fault.c:523 [inline] do_page_fault+0x81c/0xcbc arch/arm64/mm/fault.c:655 do_translation_fault+0x94/0xc8 arch/arm64/mm/fault.c:741 do_mem_abort+0x74/0x200 arch/arm64/mm/fault.c:877 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:369 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:429 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:586 do_strncpy_from_user lib/strncpy_from_user.c:41 [inline] strncpy_from_user+0x224/0x54c lib/strncpy_from_user.c:139 getname_flags+0x104/0x480 fs/namei.c:151 getname+0x28/0x38 fs/namei.c:219 do_sys_openat2+0xd4/0x3d8 fs/open.c:1350 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1383 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 -> #2 (&mm->mmap_lock){++++}-{3:3}: __might_fault+0xc4/0x124 mm/memory.c:5732 _copy_to_user include/linux/uaccess.h:165 [inline] copy_to_user include/linux/uaccess.h:191 [inline] fiemap_fill_next_extent+0x1b4/0x424 fs/ioctl.c:144 ni_fiemap+0x744/0xe10 fs/ntfs3/frecord.c:2040 ntfs_fiemap+0x110/0x168 fs/ntfs3/file.c:1137 ioctl_fiemap fs/ioctl.c:219 [inline] do_vfs_ioctl+0x194c/0x26f8 fs/ioctl.c:810 __do_sys_ioctl fs/ioctl.c:868 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 -> #1 (&ni->file.run_lock){.+.+}-{3:3}: down_read+0x58/0x2fc kernel/locking/rwsem.c:1520 ni_fiemap+0x2c4/0xe10 fs/ntfs3/frecord.c:1957 ntfs_fiemap+0x110/0x168 fs/ntfs3/file.c:1137 ioctl_fiemap fs/ioctl.c:219 [inline] do_vfs_ioctl+0x194c/0x26f8 fs/ioctl.c:810 __do_sys_ioctl fs/ioctl.c:868 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 -> #0 (&ni->ni_lock#2/4){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3113 [inline] check_prevs_add kernel/locking/lockdep.c:3232 [inline] validate_chain kernel/locking/lockdep.c:3847 [inline] __lock_acquire+0x3308/0x7604 kernel/locking/lockdep.c:5088 lock_acquire+0x23c/0x71c kernel/locking/lockdep.c:5705 __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:603 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 ni_lock fs/ntfs3/ntfs_fs.h:1121 [inline] ntfs_fallocate+0x644/0xe38 fs/ntfs3/file.c:547 vfs_fallocate+0x478/0x5b4 fs/open.c:324 ksys_fallocate fs/open.c:347 [inline] __do_sys_fallocate fs/open.c:355 [inline] __se_sys_fallocate fs/open.c:353 [inline] __arm64_sys_fallocate+0xc0/0x110 fs/open.c:353 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 other info that might help us debug this: Chain exists of: &ni->ni_lock#2/4 --> &mm->mmap_lock --> mapping.invalidate_lock#5 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(mapping.invalidate_lock#5); lock(&mm->mmap_lock); lock(mapping.invalidate_lock#5); lock(&ni->ni_lock#2/4); *** DEADLOCK *** 3 locks held by syz-executor.5/11888: #0: ffff00012499e460 (sb_writers#20){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2522 [inline] #0: ffff00012499e460 (sb_writers#20){.+.+}-{0:0}, at: vfs_fallocate+0x404/0x5b4 fs/open.c:323 #1: ffff00011efc03a0 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline] #1: ffff00011efc03a0 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: ntfs_fallocate+0x2a8/0xe38 fs/ntfs3/file.c:469 #2: ffff00011efc0540 (mapping.invalidate_lock#5){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline] #2: ffff00011efc0540 (mapping.invalidate_lock#5){++++}-{3:3}, at: ntfs_fallocate+0x35c/0xe38 fs/ntfs3/file.c:483 stack backtrace: CPU: 1 PID: 11888 Comm: syz-executor.5 Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2066 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2188 check_prev_add kernel/locking/lockdep.c:3113 [inline] check_prevs_add kernel/locking/lockdep.c:3232 [inline] validate_chain kernel/locking/lockdep.c:3847 [inline] __lock_acquire+0x3308/0x7604 kernel/locking/lockdep.c:5088 lock_acquire+0x23c/0x71c kernel/locking/lockdep.c:5705 __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:603 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 ni_lock fs/ntfs3/ntfs_fs.h:1121 [inline] ntfs_fallocate+0x644/0xe38 fs/ntfs3/file.c:547 vfs_fallocate+0x478/0x5b4 fs/open.c:324 ksys_fallocate fs/open.c:347 [inline] __do_sys_fallocate fs/open.c:355 [inline] __se_sys_fallocate fs/open.c:353 [inline] __arm64_sys_fallocate+0xc0/0x110 fs/open.c:353 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591