loop0: detected capacity change from 0 to 4096 ntfs3: loop0: Different NTFS sector size (4096) and media sector size (512). ====================================================== WARNING: possible circular locking dependency detected 6.11.0-rc4-next-20240821-syzkaller #0 Not tainted ------------------------------------------------------ syz.0.920/9106 is trying to acquire lock: ffff888062b62298 (mapping.invalidate_lock#13){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:853 [inline] ffff888062b62298 (mapping.invalidate_lock#13){++++}-{3:3}, at: filemap_fault+0x6ee/0x1960 mm/filemap.c:3301 but task is already holding lock: ffff88806bf8d718 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:163 [inline] ffff88806bf8d718 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5870 [inline] ffff88806bf8d718 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x32/0x2f0 mm/memory.c:5930 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&mm->mmap_lock){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5762 __might_fault+0xc6/0x120 mm/memory.c:6394 _inline_copy_to_user include/linux/uaccess.h:176 [inline] _copy_to_user+0x2a/0xb0 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:209 [inline] ni_fiemap+0x5b4/0x1910 fs/ntfs3/frecord.c:2140 ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1278 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:841 __do_sys_ioctl fs/ioctl.c:905 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:893 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 -> #1 (&ni->ni_lock/4){+.+.}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5762 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 ni_lock fs/ntfs3/ntfs_fs.h:1109 [inline] ntfs_fallocate+0x81d/0x1280 fs/ntfs3/file.c:618 vfs_fallocate+0x553/0x6c0 fs/open.c:334 ksys_fallocate fs/open.c:357 [inline] __do_sys_fallocate fs/open.c:365 [inline] __se_sys_fallocate fs/open.c:363 [inline] __x64_sys_fallocate+0xbd/0x110 fs/open.c:363 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 -> #0 (mapping.invalidate_lock#13){++++}-{3:3}: check_prev_add kernel/locking/lockdep.c:3136 [inline] check_prevs_add kernel/locking/lockdep.c:3255 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3871 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5145 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5762 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:853 [inline] filemap_fault+0x6ee/0x1960 mm/filemap.c:3301 __do_fault+0x135/0x460 mm/memory.c:4651 do_read_fault mm/memory.c:5057 [inline] do_fault mm/memory.c:5187 [inline] do_pte_missing mm/memory.c:3947 [inline] handle_pte_fault+0x2cf4/0x67c0 mm/memory.c:5522 __handle_mm_fault mm/memory.c:5665 [inline] handle_mm_fault+0x1029/0x1980 mm/memory.c:5833 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 fault_in_readable+0x165/0x2b0 fault_in_iov_iter_readable+0x229/0x280 lib/iov_iter.c:94 generic_perform_write+0x29c/0x730 mm/filemap.c:4008 ntfs_file_write_iter+0x663/0x740 fs/ntfs3/file.c:1192 aio_write+0x575/0x7d0 fs/aio.c:1633 io_submit_one+0x8a7/0x18b0 fs/aio.c:2052 __do_sys_io_submit fs/aio.c:2111 [inline] __se_sys_io_submit+0x179/0x2f0 fs/aio.c:2081 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 other info that might help us debug this: Chain exists of: mapping.invalidate_lock#13 --> &ni->ni_lock/4 --> &mm->mmap_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(&mm->mmap_lock); lock(&ni->ni_lock/4); lock(&mm->mmap_lock); rlock(mapping.invalidate_lock#13); *** DEADLOCK *** 2 locks held by syz.0.920/9106: #0: ffff888079f499a0 (&sb->s_type->i_mutex_key#26){+.+.}-{3:3}, at: inode_trylock include/linux/fs.h:818 [inline] #0: ffff888079f499a0 (&sb->s_type->i_mutex_key#26){+.+.}-{3:3}, at: ntfs_file_write_iter+0x24a/0x740 fs/ntfs3/file.c:1165 #1: ffff88806bf8d718 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:163 [inline] #1: ffff88806bf8d718 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5870 [inline] #1: ffff88806bf8d718 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x32/0x2f0 mm/memory.c:5930 stack backtrace: CPU: 0 UID: 0 PID: 9106 Comm: syz.0.920 Not tainted 6.11.0-rc4-next-20240821-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2189 check_prev_add kernel/locking/lockdep.c:3136 [inline] check_prevs_add kernel/locking/lockdep.c:3255 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3871 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5145 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5762 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:853 [inline] filemap_fault+0x6ee/0x1960 mm/filemap.c:3301 __do_fault+0x135/0x460 mm/memory.c:4651 do_read_fault mm/memory.c:5057 [inline] do_fault mm/memory.c:5187 [inline] do_pte_missing mm/memory.c:3947 [inline] handle_pte_fault+0x2cf4/0x67c0 mm/memory.c:5522 __handle_mm_fault mm/memory.c:5665 [inline] handle_mm_fault+0x1029/0x1980 mm/memory.c:5833 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:fault_in_readable+0x165/0x2b0 mm/gup.c:2222 Code: b4 ff 4c 8d b3 ff 0f 00 00 48 89 d8 4d 01 e6 49 81 e6 00 f0 ff ff 49 39 c6 72 6b e8 e5 6f b4 ff 4c 39 f3 74 6e 4c 89 64 24 10 <44> 8a 23 43 0f b6 04 2f 84 c0 75 18 44 88 64 24 40 48 81 c3 00 10 RSP: 0018:ffffc90009b977a0 EFLAGS: 00050287 RAX: ffffffff81df509b RBX: 0000000020008000 RCX: 0000000000040000 RDX: ffffc9000bec6000 RSI: 00000000000028fe RDI: 00000000000028ff RBP: ffffc90009b97858 R08: ffffffff81df5038 R09: ffffffff84b29c19 R10: 0000000000000002 R11: ffff88801cbada00 R12: 0000000000001000 R13: dffffc0000000000 R14: 0000000020009000 R15: 1ffff92001372efc fault_in_iov_iter_readable+0x229/0x280 lib/iov_iter.c:94 generic_perform_write+0x29c/0x730 mm/filemap.c:4008 ntfs_file_write_iter+0x663/0x740 fs/ntfs3/file.c:1192 aio_write+0x575/0x7d0 fs/aio.c:1633 io_submit_one+0x8a7/0x18b0 fs/aio.c:2052 __do_sys_io_submit fs/aio.c:2111 [inline] __se_sys_io_submit+0x179/0x2f0 fs/aio.c:2081 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: 0033:0x7f7e2ad79e79 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7e2bbac038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f7e2af15f80 RCX: 00007f7e2ad79e79 RDX: 0000000020000540 RSI: 0000000000000008 RDI: 00007f7e2bb83000 RBP: 00007f7e2ade7916 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7e2af15f80 R15: 00007ffd26a4f878 ---------------- Code disassembly (best guess): 0: b4 ff mov $0xff,%ah 2: 4c 8d b3 ff 0f 00 00 lea 0xfff(%rbx),%r14 9: 48 89 d8 mov %rbx,%rax c: 4d 01 e6 add %r12,%r14 f: 49 81 e6 00 f0 ff ff and $0xfffffffffffff000,%r14 16: 49 39 c6 cmp %rax,%r14 19: 72 6b jb 0x86 1b: e8 e5 6f b4 ff call 0xffb47005 20: 4c 39 f3 cmp %r14,%rbx 23: 74 6e je 0x93 25: 4c 89 64 24 10 mov %r12,0x10(%rsp) * 2a: 44 8a 23 mov (%rbx),%r12b <-- trapping instruction 2d: 43 0f b6 04 2f movzbl (%r15,%r13,1),%eax 32: 84 c0 test %al,%al 34: 75 18 jne 0x4e 36: 44 88 64 24 40 mov %r12b,0x40(%rsp) 3b: 48 rex.W 3c: 81 .byte 0x81 3d: c3 ret 3e: 00 10 add %dl,(%rax)