R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc9f9727bf R14: 00007f5a103a1300 R15: 0000000000022000 ====================================================== WARNING: possible circular locking dependency detected 6.4.0-syzkaller-10173-ga901a3568fd2 #0 Not tainted ------------------------------------------------------ syz-executor.1/10449 is trying to acquire lock: ffff88807ed773e0 (mapping.invalidate_lock#5){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:826 [inline] ffff88807ed773e0 (mapping.invalidate_lock#5){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:225 but task is already holding lock: ffff888015e94420 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:161 [inline] ffff888015e94420 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5254 [inline] ffff888015e94420 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x32/0x2f0 mm/memory.c:5316 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&mm->mmap_lock){++++}-{3:3}: __might_fault+0xba/0x120 mm/memory.c:5845 _copy_to_user+0x2a/0xa0 lib/usercopy.c:36 copy_to_user include/linux/uaccess.h:191 [inline] fiemap_fill_next_extent+0x235/0x410 fs/ioctl.c:144 ni_fiemap+0x9b2/0x1230 fs/ntfs3/frecord.c:2040 ntfs_fiemap+0x132/0x180 fs/ntfs3/file.c:1163 ioctl_fiemap fs/ioctl.c:219 [inline] do_vfs_ioctl+0x19db/0x2b30 fs/ioctl.c:810 __do_sys_ioctl fs/ioctl.c:868 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd -> #1 (&ni->file.run_lock){++++}-{3:3}: down_read+0x47/0x2f0 kernel/locking/rwsem.c:1520 attr_data_get_block+0x2e7/0x2da0 fs/ntfs3/attrib.c:902 ntfs_get_block_vbo+0x36a/0xd00 fs/ntfs3/inode.c:585 do_mpage_readpage+0x911/0x1fa0 fs/mpage.c:234 mpage_readahead+0x454/0x930 fs/mpage.c:382 read_pages+0x183/0x830 mm/readahead.c:160 page_cache_ra_unbounded+0x697/0x7c0 mm/readahead.c:269 page_cache_sync_readahead include/linux/pagemap.h:1213 [inline] filemap_get_pages+0x49c/0x20c0 mm/filemap.c:2563 filemap_read+0x3d9/0x10d0 mm/filemap.c:2658 __kernel_read+0x422/0x8e0 fs/read_write.c:428 integrity_kernel_read+0xb0/0xf0 security/integrity/iint.c:195 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:485 [inline] ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline] ima_calc_file_hash+0x164c/0x1d20 security/integrity/ima/ima_crypto.c:573 ima_collect_measurement+0x4a5/0x890 security/integrity/ima/ima_api.c:289 process_measurement+0xfea/0x1cf0 security/integrity/ima/ima_main.c:345 ima_file_check+0xf1/0x170 security/integrity/ima/ima_main.c:543 do_open fs/namei.c:3638 [inline] path_openat+0x2812/0x3180 fs/namei.c:3793 do_filp_open+0x234/0x490 fs/namei.c:3820 do_sys_openat2+0x13e/0x1d0 fs/open.c:1407 do_sys_open fs/open.c:1422 [inline] __do_sys_openat fs/open.c:1438 [inline] __se_sys_openat fs/open.c:1433 [inline] __x64_sys_openat+0x247/0x290 fs/open.c:1433 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd -> #0 (mapping.invalidate_lock#5){.+.+}-{3:3}: check_prev_add kernel/locking/lockdep.c:3142 [inline] check_prevs_add kernel/locking/lockdep.c:3261 [inline] validate_chain kernel/locking/lockdep.c:3876 [inline] __lock_acquire+0x39ff/0x7f70 kernel/locking/lockdep.c:5144 lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5761 down_read+0x47/0x2f0 kernel/locking/rwsem.c:1520 filemap_invalidate_lock_shared include/linux/fs.h:826 [inline] page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:225 do_sync_mmap_readahead+0x7b6/0x9a0 mm/filemap.c:3205 filemap_fault+0x81b/0x1810 mm/filemap.c:3297 __do_fault+0x136/0x500 mm/memory.c:4191 do_shared_fault mm/memory.c:4595 [inline] do_fault mm/memory.c:4667 [inline] do_pte_missing mm/memory.c:3664 [inline] handle_pte_fault mm/memory.c:4932 [inline] __handle_mm_fault mm/memory.c:5072 [inline] handle_mm_fault+0x1f7b/0x5410 mm/memory.c:5226 do_user_addr_fault arch/x86/mm/fault.c:1392 [inline] handle_page_fault arch/x86/mm/fault.c:1486 [inline] exc_page_fault+0x266/0x7c0 arch/x86/mm/fault.c:1542 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 filldir+0x2a1/0x6a0 fs/readdir.c:249 dir_emit_dot include/linux/fs.h:3180 [inline] dir_emit_dots include/linux/fs.h:3191 [inline] ntfs_readdir+0x2ee/0xf30 fs/ntfs3/dir.c:390 iterate_dir+0x231/0x5a0 __do_sys_getdents fs/readdir.c:286 [inline] __se_sys_getdents+0x1ef/0x4c0 fs/readdir.c:271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd other info that might help us debug this: Chain exists of: mapping.invalidate_lock#5 --> &ni->file.run_lock --> &mm->mmap_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(&mm->mmap_lock); lock(&ni->file.run_lock); lock(&mm->mmap_lock); rlock(mapping.invalidate_lock#5); *** DEADLOCK *** 3 locks held by syz-executor.1/10449: #0: ffff88801f75a5c8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x254/0x2f0 fs/file.c:1047 #1: ffff88807ed75c20 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: iterate_dir+0x117/0x5a0 fs/readdir.c:55 #2: ffff888015e94420 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:161 [inline] #2: ffff888015e94420 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5254 [inline] #2: ffff888015e94420 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x32/0x2f0 mm/memory.c:5316 stack backtrace: CPU: 1 PID: 10449 Comm: syz-executor.1 Not tainted 6.4.0-syzkaller-10173-ga901a3568fd2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 check_noncircular+0x375/0x4a0 kernel/locking/lockdep.c:2195 check_prev_add kernel/locking/lockdep.c:3142 [inline] check_prevs_add kernel/locking/lockdep.c:3261 [inline] validate_chain kernel/locking/lockdep.c:3876 [inline] __lock_acquire+0x39ff/0x7f70 kernel/locking/lockdep.c:5144 lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5761 down_read+0x47/0x2f0 kernel/locking/rwsem.c:1520 filemap_invalidate_lock_shared include/linux/fs.h:826 [inline] page_cache_ra_unbounded+0xf1/0x7c0 mm/readahead.c:225 do_sync_mmap_readahead+0x7b6/0x9a0 mm/filemap.c:3205 filemap_fault+0x81b/0x1810 mm/filemap.c:3297 __do_fault+0x136/0x500 mm/memory.c:4191 do_shared_fault mm/memory.c:4595 [inline] do_fault mm/memory.c:4667 [inline] do_pte_missing mm/memory.c:3664 [inline] handle_pte_fault mm/memory.c:4932 [inline] __handle_mm_fault mm/memory.c:5072 [inline] handle_mm_fault+0x1f7b/0x5410 mm/memory.c:5226 do_user_addr_fault arch/x86/mm/fault.c:1392 [inline] handle_page_fault arch/x86/mm/fault.c:1486 [inline] exc_page_fault+0x266/0x7c0 arch/x86/mm/fault.c:1542 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0010:filldir+0x2a1/0x6a0 fs/readdir.c:253 Code: 92 ff 4c 89 f7 48 89 de e8 8c 5c 92 ff 49 01 df 0f 88 5e 02 00 00 49 39 df 0f 82 55 02 00 00 0f 01 cb 0f ae e8 48 8b 44 24 30 <48> 89 43 08 48 8b 4c 24 10 48 8b 44 24 60 48 89 01 48 8b 44 24 18 RSP: 0018:ffffc9000635fb80 EFLAGS: 00050206 RAX: 0000000000000000 RBX: 0000000020001fc0 RCX: ffff88807d660000 RDX: ffffc90012cfb000 RSI: 0000000020001fc0 RDI: 0000000020001fd8 RBP: 0000000000000000 R08: ffffffff81f99774 R09: 0000000000000004 R10: 0000000000000002 R11: ffff88807d660000 R12: ffffffff8b3b7d80 R13: 0000000000000001 R14: 0000000020001fd8 R15: 0000000020001fd8 dir_emit_dot include/linux/fs.h:3180 [inline] dir_emit_dots include/linux/fs.h:3191 [inline] ntfs_readdir+0x2ee/0xf30 fs/ntfs3/dir.c:390 iterate_dir+0x231/0x5a0 __do_sys_getdents fs/readdir.c:286 [inline] __se_sys_getdents+0x1ef/0x4c0 fs/readdir.c:271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f5a0f68c389 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5a103a1168 EFLAGS: 00000246 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007f5a0f7abf80 RCX: 00007f5a0f68c389 RDX: 00000000000000b8 RSI: 0000000020001fc0 RDI: 0000000000000006 RBP: 00007f5a103a11d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc9f9727bf R14: 00007f5a103a1300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 92 xchg %eax,%edx 1: ff 4c 89 f7 decl -0x9(%rcx,%rcx,4) 5: 48 89 de mov %rbx,%rsi 8: e8 8c 5c 92 ff callq 0xff925c99 d: 49 01 df add %rbx,%r15 10: 0f 88 5e 02 00 00 js 0x274 16: 49 39 df cmp %rbx,%r15 19: 0f 82 55 02 00 00 jb 0x274 1f: 0f 01 cb stac 22: 0f ae e8 lfence 25: 48 8b 44 24 30 mov 0x30(%rsp),%rax * 2a: 48 89 43 08 mov %rax,0x8(%rbx) <-- trapping instruction 2e: 48 8b 4c 24 10 mov 0x10(%rsp),%rcx 33: 48 8b 44 24 60 mov 0x60(%rsp),%rax 38: 48 89 01 mov %rax,(%rcx) 3b: 48 8b 44 24 18 mov 0x18(%rsp),%rax