loop5: detected capacity change from 0 to 4096 ====================================================== WARNING: possible circular locking dependency detected 6.12.0-rc7-syzkaller-g887407160d72 #0 Not tainted ------------------------------------------------------ syz.5.197/7623 is trying to acquire lock: ffff0000ee3f4ea8 (mapping.invalidate_lock#5){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] ffff0000ee3f4ea8 (mapping.invalidate_lock#5){++++}-{3:3}, at: filemap_fault+0x5c0/0x138c mm/filemap.c:3331 but task is already holding lock: ffff0000ce1dd988 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:144 [inline] ffff0000ce1dd988 (&mm->mmap_lock){++++}-{3:3}, at: __mm_populate+0x190/0x3d8 mm/gup.c:2005 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&mm->mmap_lock){++++}-{3:3}: __might_fault+0xc4/0x124 mm/memory.c:6716 _inline_copy_to_user include/linux/uaccess.h:192 [inline] copy_to_user include/linux/uaccess.h:223 [inline] ni_fiemap+0x1134/0x1444 fs/ntfs3/frecord.c:2139 ntfs_fiemap+0x110/0x168 fs/ntfs3/file.c:1352 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1de8/0x2aa8 fs/ioctl.c:841 __do_sys_ioctl fs/ioctl.c:905 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #1 (&ni->ni_lock#2/5){+.+.}-{3:3}: __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:608 __mutex_lock kernel/locking/mutex.c:752 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804 ni_lock fs/ntfs3/ntfs_fs.h:1109 [inline] ntfs_fallocate+0x4d4/0xfd0 fs/ntfs3/file.c:609 vfs_fallocate+0x484/0x5c0 fs/open.c:333 madvise_remove mm/madvise.c:1012 [inline] madvise_vma_behavior mm/madvise.c:1039 [inline] madvise_walk_vmas mm/madvise.c:1274 [inline] do_madvise+0x1a64/0x31dc mm/madvise.c:1461 __do_sys_madvise mm/madvise.c:1477 [inline] __se_sys_madvise mm/madvise.c:1475 [inline] __arm64_sys_madvise+0xa4/0xc0 mm/madvise.c:1475 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #0 (mapping.invalidate_lock#5){++++}-{3:3}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x33f8/0x77c8 kernel/locking/lockdep.c:5202 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 down_read+0x58/0x2fc kernel/locking/rwsem.c:1524 filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] filemap_fault+0x5c0/0x138c mm/filemap.c:3331 __do_fault+0x11c/0x374 mm/memory.c:4882 do_read_fault mm/memory.c:5297 [inline] do_fault mm/memory.c:5431 [inline] do_pte_missing mm/memory.c:3965 [inline] handle_pte_fault mm/memory.c:5766 [inline] __handle_mm_fault+0x3394/0x66e8 mm/memory.c:5909 handle_mm_fault+0x29c/0x8b4 mm/memory.c:6077 faultin_page mm/gup.c:1187 [inline] __get_user_pages+0x15e4/0x3134 mm/gup.c:1485 populate_vma_page_range+0x220/0x2f0 mm/gup.c:1923 __mm_populate+0x240/0x3d8 mm/gup.c:2026 mm_populate include/linux/mm.h:3383 [inline] vm_mmap_pgoff+0x284/0x38c mm/util.c:593 ksys_mmap_pgoff+0x3a4/0x5c8 mm/mmap.c:542 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline] __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline] __arm64_sys_mmap+0xf8/0x110 arch/arm64/kernel/sys.c:21 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 other info that might help us debug this: Chain exists of: mapping.invalidate_lock#5 --> &ni->ni_lock#2/5 --> &mm->mmap_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(&mm->mmap_lock); lock(&ni->ni_lock#2/5); lock(&mm->mmap_lock); rlock(mapping.invalidate_lock#5); *** DEADLOCK *** 1 lock held by syz.5.197/7623: #0: ffff0000ce1dd988 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:144 [inline] #0: ffff0000ce1dd988 (&mm->mmap_lock){++++}-{3:3}, at: __mm_populate+0x190/0x3d8 mm/gup.c:2005 stack backtrace: CPU: 1 UID: 0 PID: 7623 Comm: syz.5.197 Not tainted 6.12.0-rc7-syzkaller-g887407160d72 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:484 (C) __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 print_circular_bug+0x154/0x1c0 kernel/locking/lockdep.c:2074 check_noncircular+0x310/0x404 kernel/locking/lockdep.c:2206 check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x33f8/0x77c8 kernel/locking/lockdep.c:5202 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 down_read+0x58/0x2fc kernel/locking/rwsem.c:1524 filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] filemap_fault+0x5c0/0x138c mm/filemap.c:3331 __do_fault+0x11c/0x374 mm/memory.c:4882 do_read_fault mm/memory.c:5297 [inline] do_fault mm/memory.c:5431 [inline] do_pte_missing mm/memory.c:3965 [inline] handle_pte_fault mm/memory.c:5766 [inline] __handle_mm_fault+0x3394/0x66e8 mm/memory.c:5909 handle_mm_fault+0x29c/0x8b4 mm/memory.c:6077 faultin_page mm/gup.c:1187 [inline] __get_user_pages+0x15e4/0x3134 mm/gup.c:1485 populate_vma_page_range+0x220/0x2f0 mm/gup.c:1923 __mm_populate+0x240/0x3d8 mm/gup.c:2026 mm_populate include/linux/mm.h:3383 [inline] vm_mmap_pgoff+0x284/0x38c mm/util.c:593 ksys_mmap_pgoff+0x3a4/0x5c8 mm/mmap.c:542 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline] __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline] __arm64_sys_mmap+0xf8/0x110 arch/arm64/kernel/sys.c:21 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600