ntfs: volume version 3.1. ====================================================== WARNING: possible circular locking dependency detected 6.7.0-rc8-syzkaller-00024-gac865f00af29 #0 Not tainted ------------------------------------------------------ syz-executor.1/16522 is trying to acquire lock: ffff8880240009d0 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4a/0x730 fs/ntfs/mft.c:154 but task is already holding lock: ffff888024000940 (&rl->lock){++++}-{3:3}, at: ntfs_map_runlist+0x24/0xa0 fs/ntfs/attrib.c:288 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&rl->lock){++++}-{3:3}: down_read+0x9a/0x330 kernel/locking/rwsem.c:1526 ntfs_read_block fs/ntfs/aops.c:242 [inline] ntfs_read_folio+0x1a98/0x2430 fs/ntfs/aops.c:430 filemap_read_folio+0xe9/0x2c0 mm/filemap.c:2323 do_read_cache_folio+0x205/0x540 mm/filemap.c:3700 do_read_cache_page mm/filemap.c:3766 [inline] read_cache_page+0x5b/0x160 mm/filemap.c:3775 read_mapping_page include/linux/pagemap.h:871 [inline] ntfs_map_page fs/ntfs/aops.h:75 [inline] ntfs_sync_mft_mirror+0x242/0x1ed0 fs/ntfs/mft.c:480 write_mft_record_nolock+0x1977/0x1da0 fs/ntfs/mft.c:787 write_mft_record+0x14b/0x380 fs/ntfs/mft.h:95 __ntfs_write_inode+0x91b/0xc30 fs/ntfs/inode.c:3052 write_inode fs/fs-writeback.c:1473 [inline] __writeback_single_inode+0xa91/0xe90 fs/fs-writeback.c:1690 writeback_sb_inodes+0x599/0x1080 fs/fs-writeback.c:1916 wb_writeback+0x2a5/0xaa0 fs/fs-writeback.c:2092 wb_do_writeback fs/fs-writeback.c:2239 [inline] wb_workfn+0x29c/0xfe0 fs/fs-writeback.c:2279 process_one_work+0x886/0x15d0 kernel/workqueue.c:2627 process_scheduled_works kernel/workqueue.c:2700 [inline] worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781 kthread+0x2c6/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 -> #0 (&ni->mrec_lock){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x2433/0x3b20 kernel/locking/lockdep.c:5137 lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1ae/0x520 kernel/locking/lockdep.c:5719 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x175/0x9d0 kernel/locking/mutex.c:747 map_mft_record+0x4a/0x730 fs/ntfs/mft.c:154 ntfs_map_runlist_nolock+0xbbe/0x17a0 fs/ntfs/attrib.c:91 ntfs_map_runlist+0x7b/0xa0 fs/ntfs/attrib.c:292 ntfs_read_block fs/ntfs/aops.c:277 [inline] ntfs_read_folio+0x1aea/0x2430 fs/ntfs/aops.c:430 read_pages+0xa76/0xdc0 mm/readahead.c:180 page_cache_ra_unbounded+0x457/0x5f0 mm/readahead.c:269 do_page_cache_ra mm/readahead.c:299 [inline] page_cache_ra_order+0x72b/0xa80 mm/readahead.c:546 ondemand_readahead+0x493/0x1130 mm/readahead.c:668 page_cache_sync_ra+0x174/0x1d0 mm/readahead.c:695 page_cache_sync_readahead include/linux/pagemap.h:1283 [inline] filemap_get_pages+0xc06/0x1830 mm/filemap.c:2497 filemap_read+0x39b/0xcf0 mm/filemap.c:2593 generic_file_read_iter+0x346/0x450 mm/filemap.c:2781 __kernel_read+0x301/0x870 fs/read_write.c:428 integrity_kernel_read+0x7f/0xb0 security/integrity/iint.c:221 ima_calc_file_hash_tfm+0x2c5/0x3d0 security/integrity/ima/ima_crypto.c:485 ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline] ima_calc_file_hash+0x1c6/0x4a0 security/integrity/ima/ima_crypto.c:573 ima_collect_measurement+0x85e/0xa20 security/integrity/ima/ima_api.c:290 process_measurement+0xe92/0x2260 security/integrity/ima/ima_main.c:359 ima_file_check+0xc2/0x110 security/integrity/ima/ima_main.c:557 do_open fs/namei.c:3624 [inline] path_openat+0x1821/0x2c50 fs/namei.c:3779 do_filp_open+0x1de/0x430 fs/namei.c:3809 do_sys_openat2+0x176/0x1e0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_compat_sys_openat fs/open.c:1512 [inline] __se_compat_sys_openat fs/open.c:1510 [inline] __ia32_compat_sys_openat+0x16e/0x200 fs/open.c:1510 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x62/0xe0 arch/x86/entry/common.c:321 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x70/0x7a other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&rl->lock); lock(&ni->mrec_lock); lock(&rl->lock); lock(&ni->mrec_lock); *** DEADLOCK *** 3 locks held by syz-executor.1/16522: #0: ffff8880228d09c0 (&iint_mutex_key[depth]){+.+.}-{3:3}, at: process_measurement+0x896/0x2260 security/integrity/ima/ima_main.c:267 #1: ffff888024000e50 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:857 [inline] #1: ffff888024000e50 (mapping.invalidate_lock#12){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x13a/0x5f0 mm/readahead.c:225 #2: ffff888024000940 (&rl->lock){++++}-{3:3}, at: ntfs_map_runlist+0x24/0xa0 fs/ntfs/attrib.c:288 stack backtrace: CPU: 2 PID: 16522 Comm: syz-executor.1 Not tainted 6.7.0-rc8-syzkaller-00024-gac865f00af29 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 check_noncircular+0x317/0x400 kernel/locking/lockdep.c:2187 check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x2433/0x3b20 kernel/locking/lockdep.c:5137 lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1ae/0x520 kernel/locking/lockdep.c:5719 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x175/0x9d0 kernel/locking/mutex.c:747 map_mft_record+0x4a/0x730 fs/ntfs/mft.c:154 ntfs_map_runlist_nolock+0xbbe/0x17a0 fs/ntfs/attrib.c:91 ntfs_map_runlist+0x7b/0xa0 fs/ntfs/attrib.c:292 ntfs_read_block fs/ntfs/aops.c:277 [inline] ntfs_read_folio+0x1aea/0x2430 fs/ntfs/aops.c:430 read_pages+0xa76/0xdc0 mm/readahead.c:180 page_cache_ra_unbounded+0x457/0x5f0 mm/readahead.c:269 do_page_cache_ra mm/readahead.c:299 [inline] page_cache_ra_order+0x72b/0xa80 mm/readahead.c:546 ondemand_readahead+0x493/0x1130 mm/readahead.c:668 page_cache_sync_ra+0x174/0x1d0 mm/readahead.c:695 page_cache_sync_readahead include/linux/pagemap.h:1283 [inline] filemap_get_pages+0xc06/0x1830 mm/filemap.c:2497 filemap_read+0x39b/0xcf0 mm/filemap.c:2593 generic_file_read_iter+0x346/0x450 mm/filemap.c:2781 __kernel_read+0x301/0x870 fs/read_write.c:428 integrity_kernel_read+0x7f/0xb0 security/integrity/iint.c:221 ima_calc_file_hash_tfm+0x2c5/0x3d0 security/integrity/ima/ima_crypto.c:485 ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline] ima_calc_file_hash+0x1c6/0x4a0 security/integrity/ima/ima_crypto.c:573 ima_collect_measurement+0x85e/0xa20 security/integrity/ima/ima_api.c:290 process_measurement+0xe92/0x2260 security/integrity/ima/ima_main.c:359 ima_file_check+0xc2/0x110 security/integrity/ima/ima_main.c:557 do_open fs/namei.c:3624 [inline] path_openat+0x1821/0x2c50 fs/namei.c:3779 do_filp_open+0x1de/0x430 fs/namei.c:3809 do_sys_openat2+0x176/0x1e0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_compat_sys_openat fs/open.c:1512 [inline] __se_compat_sys_openat fs/open.c:1510 [inline] __ia32_compat_sys_openat+0x16e/0x200 fs/open.c:1510 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x62/0xe0 arch/x86/entry/common.c:321 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x70/0x7a RIP: 0023:0xf7fb1579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7fac5ac EFLAGS: 00000292 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 0000000020000200 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi