exfat: Deprecated parameter 'utf8' exFAT-fs (loop3): failed to load upcase table (idx : 0x00010000, chksum : 0x207d53fc, utbl_chksum : 0xe619d30d) ====================================================== WARNING: possible circular locking dependency detected 6.1.0-rc6-syzkaller-00012-g4312098baf37 #0 Not tainted ------------------------------------------------------ syz-executor.3/10562 is trying to acquire lock: ffff888031041e50 (mapping.invalidate_lock#7){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] ffff888031041e50 (mapping.invalidate_lock#7){.+.+}-{3:3}, at: filemap_fault+0x2fb/0x1060 mm/filemap.c:3127 but task is already holding lock: ffff888077d8e0e0 (&sbi->s_lock){+.+.}-{3:3}, at: exfat_iterate+0x1c1/0x3190 fs/exfat/dir.c:228 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&sbi->s_lock){+.+.}-{3:3}: lock_acquire+0x182/0x3c0 kernel/locking/lockdep.c:5668 __mutex_lock_common+0x1bd/0x26e0 kernel/locking/mutex.c:603 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799 exfat_get_block+0x191/0x1e20 fs/exfat/inode.c:282 do_mpage_readpage+0x970/0x1c50 fs/mpage.c:208 mpage_readahead+0x210/0x380 fs/mpage.c:361 read_pages+0x169/0x9c0 mm/readahead.c:161 page_cache_ra_unbounded+0x703/0x820 mm/readahead.c:270 page_cache_sync_readahead include/linux/pagemap.h:1213 [inline] filemap_get_pages+0x465/0x10d0 mm/filemap.c:2581 filemap_read+0x3cf/0xea0 mm/filemap.c:2675 __kernel_read+0x3fc/0x830 fs/read_write.c:428 integrity_kernel_read+0xac/0xf0 security/integrity/iint.c:199 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+0x178f/0x1ca0 security/integrity/ima/ima_crypto.c:573 ima_collect_measurement+0x444/0x8c0 security/integrity/ima/ima_api.c:292 process_measurement+0xf4b/0x1bd0 security/integrity/ima/ima_main.c:337 ima_file_check+0xd8/0x130 security/integrity/ima/ima_main.c:517 do_open fs/namei.c:3559 [inline] path_openat+0x2642/0x2df0 fs/namei.c:3713 do_filp_open+0x264/0x4f0 fs/namei.c:3740 do_sys_openat2+0x124/0x4e0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_open fs/open.c:1334 [inline] __se_sys_open fs/open.c:1330 [inline] __x64_sys_open+0x221/0x270 fs/open.c:1330 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd -> #0 (mapping.invalidate_lock#7){.+.+}-{3:3}: check_prev_add kernel/locking/lockdep.c:3097 [inline] check_prevs_add kernel/locking/lockdep.c:3216 [inline] validate_chain+0x1898/0x6ae0 kernel/locking/lockdep.c:3831 __lock_acquire+0x1292/0x1f60 kernel/locking/lockdep.c:5055 lock_acquire+0x182/0x3c0 kernel/locking/lockdep.c:5668 down_read+0x39/0x50 kernel/locking/rwsem.c:1509 filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] filemap_fault+0x2fb/0x1060 mm/filemap.c:3127 __do_fault+0x136/0x4f0 mm/memory.c:4203 do_shared_fault mm/memory.c:4609 [inline] do_fault mm/memory.c:4687 [inline] handle_pte_fault mm/memory.c:4955 [inline] __handle_mm_fault mm/memory.c:5097 [inline] handle_mm_fault+0x1bca/0x3630 mm/memory.c:5218 do_user_addr_fault+0x69b/0xcb0 arch/x86/mm/fault.c:1428 handle_page_fault arch/x86/mm/fault.c:1519 [inline] exc_page_fault+0x7a/0x110 arch/x86/mm/fault.c:1575 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 filldir+0x2e8/0x670 fs/readdir.c:249 dir_emit_dot include/linux/fs.h:3561 [inline] dir_emit_dots include/linux/fs.h:3572 [inline] exfat_iterate+0x2d3/0x3190 fs/exfat/dir.c:231 iterate_dir+0x257/0x5f0 __do_sys_getdents fs/readdir.c:286 [inline] __se_sys_getdents+0x1db/0x4d0 fs/readdir.c:271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sbi->s_lock); lock(mapping.invalidate_lock#7); lock(&sbi->s_lock); lock(mapping.invalidate_lock#7); *** DEADLOCK *** 4 locks held by syz-executor.3/10562: #0: ffff8880221a5268 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x242/0x2e0 fs/file.c:1037 #1: ffff888031045db0 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: iterate_dir+0x147/0x5f0 fs/readdir.c:57 #2: ffff888077d8e0e0 (&sbi->s_lock){+.+.}-{3:3}, at: exfat_iterate+0x1c1/0x3190 fs/exfat/dir.c:228 #3: ffff8880195ba598 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #3: ffff8880195ba598 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x2e2/0xcb0 arch/x86/mm/fault.c:1369 stack backtrace: CPU: 1 PID: 10562 Comm: syz-executor.3 Not tainted 6.1.0-rc6-syzkaller-00012-g4312098baf37 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 check_noncircular+0x2cc/0x390 kernel/locking/lockdep.c:2177 check_prev_add kernel/locking/lockdep.c:3097 [inline] check_prevs_add kernel/locking/lockdep.c:3216 [inline] validate_chain+0x1898/0x6ae0 kernel/locking/lockdep.c:3831 __lock_acquire+0x1292/0x1f60 kernel/locking/lockdep.c:5055 lock_acquire+0x182/0x3c0 kernel/locking/lockdep.c:5668 down_read+0x39/0x50 kernel/locking/rwsem.c:1509 filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] filemap_fault+0x2fb/0x1060 mm/filemap.c:3127 __do_fault+0x136/0x4f0 mm/memory.c:4203 do_shared_fault mm/memory.c:4609 [inline] do_fault mm/memory.c:4687 [inline] handle_pte_fault mm/memory.c:4955 [inline] __handle_mm_fault mm/memory.c:5097 [inline] handle_mm_fault+0x1bca/0x3630 mm/memory.c:5218 do_user_addr_fault+0x69b/0xcb0 arch/x86/mm/fault.c:1428 handle_page_fault arch/x86/mm/fault.c:1519 [inline] exc_page_fault+0x7a/0x110 arch/x86/mm/fault.c:1575 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0010:filldir+0x2e8/0x670 fs/readdir.c:253 Code: 24 10 e8 5b 98 97 ff 48 8b 4c 24 10 83 3c 24 00 0f 88 4c 02 00 00 48 39 cd 0f 82 43 02 00 00 0f 01 cb 0f ae e8 48 8b 44 24 60 <48> 89 41 08 e8 ef 95 97 ff 48 8b 44 24 20 49 89 45 00 e8 e1 95 97 RSP: 0018:ffffc90015807760 EFLAGS: 00050206 RAX: 0000000000000000 RBX: ffffffff8b06fe80 RCX: 0000000020000500 RDX: ffff888027081d40 RSI: 0000000020000500 RDI: 00007fffffffefe8 RBP: 00007fffffffefe8 R08: ffffffff81f30255 R09: 0000000000000004 R10: 0000000000000003 R11: ffff888027081d40 R12: dffffc0000000000 R13: 0000000020000500 R14: 0000000000000001 R15: ffffc90015807e70 dir_emit_dot include/linux/fs.h:3561 [inline] dir_emit_dots include/linux/fs.h:3572 [inline] exfat_iterate+0x2d3/0x3190 fs/exfat/dir.c:231 iterate_dir+0x257/0x5f0 __do_sys_getdents fs/readdir.c:286 [inline] __se_sys_getdents+0x1db/0x4d0 fs/readdir.c:271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa486c8c0d9 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:00007fa48799f168 EFLAGS: 00000246 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007fa486dabf80 RCX: 00007fa486c8c0d9 RDX: 000000000000e807 RSI: 0000000020000500 RDI: 0000000000000004 RBP: 00007fa486ce7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffde6b35aff R14: 00007fa48799f300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 24 10 and $0x10,%al 2: e8 5b 98 97 ff callq 0xff979862 7: 48 8b 4c 24 10 mov 0x10(%rsp),%rcx c: 83 3c 24 00 cmpl $0x0,(%rsp) 10: 0f 88 4c 02 00 00 js 0x262 16: 48 39 cd cmp %rcx,%rbp 19: 0f 82 43 02 00 00 jb 0x262 1f: 0f 01 cb stac 22: 0f ae e8 lfence 25: 48 8b 44 24 60 mov 0x60(%rsp),%rax * 2a: 48 89 41 08 mov %rax,0x8(%rcx) <-- trapping instruction 2e: e8 ef 95 97 ff callq 0xff979622 33: 48 8b 44 24 20 mov 0x20(%rsp),%rax 38: 49 89 45 00 mov %rax,0x0(%r13) 3c: e8 .byte 0xe8 3d: e1 95 loope 0xffffffd4 3f: 97 xchg %eax,%edi