program: syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$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") r0 = creat(&(0x7f0000000100)='./file1\x00', 0x20) io_setup(0x202, &(0x7f0000000200)=0x0) io_submit(r1, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x70000}]) ioctl$SNDRV_PCM_IOCTL_RESUME(r0, 0x4147, 0x0) setsockopt$sock_void(r0, 0x1, 0x0, 0x0, 0x0) ioctl$TCSETS(r0, 0x5402, &(0x7f0000000000)={0x401, 0x6, 0x3, 0x2, 0x10, "07254a17d5304af9ac4e2332d39529040394ec"}) [ 94.073615][ T5349] loop0: detected capacity change from 0 to 1024 [ 94.180077][ T5349] [ 94.181466][ T5349] ============================================ [ 94.185373][ T5349] WARNING: possible recursive locking detected [ 94.189015][ T5349] syzkaller #0 Not tainted [ 94.191041][ T5349] -------------------------------------------- [ 94.193638][ T5349] syz.0.0/5349 is trying to acquire lock: [ 94.196077][ T5349] ffff888052370108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1ba0 [ 94.200879][ T5349] [ 94.200879][ T5349] but task is already holding lock: [ 94.204002][ T5349] ffff888052372988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1ba0 [ 94.208620][ T5349] [ 94.208620][ T5349] other info that might help us debug this: [ 94.211955][ T5349] Possible unsafe locking scenario: [ 94.211955][ T5349] [ 94.215281][ T5349] CPU0 [ 94.217084][ T5349] ---- [ 94.218793][ T5349] lock(&HFSPLUS_I(inode)->extents_lock); [ 94.221702][ T5349] lock(&HFSPLUS_I(inode)->extents_lock); [ 94.224381][ T5349] [ 94.224381][ T5349] *** DEADLOCK *** [ 94.224381][ T5349] [ 94.227764][ T5349] May be due to missing lock nesting notation [ 94.227764][ T5349] [ 94.231398][ T5349] 3 locks held by syz.0.0/5349: [ 94.233476][ T5349] #0: ffff888052372b78 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: generic_file_write_iter+0xeb/0x550 [ 94.238044][ T5349] #1: ffff888052372988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1ba0 [ 94.242868][ T5349] #2: ffff8880112de0b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x168/0x290 [ 94.247643][ T5349] [ 94.247643][ T5349] stack backtrace: [ 94.250000][ T5349] CPU: 0 UID: 0 PID: 5349 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 94.250014][ T5349] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 94.250019][ T5349] Call Trace: [ 94.250025][ T5349] [ 94.250029][ T5349] dump_stack_lvl+0x189/0x250 [ 94.250044][ T5349] ? __pfx_dump_stack_lvl+0x10/0x10 [ 94.250053][ T5349] ? __pfx__printk+0x10/0x10 [ 94.250069][ T5349] ? print_lock_name+0xde/0x100 [ 94.250081][ T5349] print_deadlock_bug+0x279/0x290 [ 94.250091][ T5349] __lock_acquire+0x2540/0x2cf0 [ 94.250102][ T5349] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 94.250113][ T5349] lock_acquire+0x117/0x340 [ 94.250121][ T5349] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 94.250134][ T5349] __mutex_lock+0x187/0x1350 [ 94.250201][ T5349] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 94.250219][ T5349] ? __bfs+0x154/0x290 [ 94.250231][ T5349] ? __pfx_hlock_conflict+0x10/0x10 [ 94.250242][ T5349] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 94.250252][ T5349] ? check_noncircular+0xda/0x150 [ 94.250261][ T5349] ? __pfx___mutex_lock+0x10/0x10 [ 94.250270][ T5349] ? lockdep_unlock+0x89/0x120 [ 94.250278][ T5349] hfsplus_file_extend+0x1f8/0x1ba0 [ 94.250291][ T5349] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 94.250301][ T5349] ? __pfx___mutex_trylock_common+0x10/0x10 [ 94.250310][ T5349] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.250319][ T5349] ? rcu_is_watching+0x15/0xb0 [ 94.250328][ T5349] ? trace_contention_end+0x39/0x100 [ 94.250337][ T5349] ? __asan_memset+0x22/0x50 [ 94.250345][ T5349] ? hfsplus_brec_find+0x1a9/0x510 [ 94.250355][ T5349] hfsplus_bmap_reserve+0x125/0x510 [ 94.250364][ T5349] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 94.250376][ T5349] __hfsplus_ext_cache_extent+0x89/0xe30 [ 94.250388][ T5349] hfsplus_file_extend+0x437/0x1ba0 [ 94.250400][ T5349] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 94.250411][ T5349] ? clean_bdev_aliases+0x5c9/0x6b0 [ 94.250421][ T5349] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 94.250430][ T5349] hfsplus_get_block+0x40a/0x15d0 [ 94.250442][ T5349] ? __pfx_hfsplus_get_block+0x10/0x10 [ 94.250452][ T5349] ? do_raw_spin_unlock+0x4d/0x240 [ 94.250462][ T5349] ? _raw_spin_unlock+0x28/0x50 [ 94.250471][ T5349] __block_write_begin_int+0x6b5/0x1900 [ 94.250479][ T5349] ? __pfx_workingset_update_node+0x10/0x10 [ 94.250495][ T5349] ? __pfx_hfsplus_get_block+0x10/0x10 [ 94.250511][ T5349] ? __pfx___block_write_begin_int+0x10/0x10 [ 94.250524][ T5349] cont_write_begin+0x789/0xb50 [ 94.250534][ T5349] ? __pfx_cont_write_begin+0x10/0x10 [ 94.250543][ T5349] ? __pfx___might_resched+0x10/0x10 [ 94.250551][ T5349] ? folio_unlock+0x101/0x160 [ 94.250560][ T5349] hfsplus_write_begin+0x66/0xb0 [ 94.250570][ T5349] ? __pfx_hfsplus_get_block+0x10/0x10 [ 94.250580][ T5349] generic_perform_write+0x2c5/0x900 [ 94.250593][ T5349] ? __pfx_generic_perform_write+0x10/0x10 [ 94.250604][ T5349] ? file_update_time_flags+0x2cb/0x4e0 [ 94.250612][ T5349] ? __generic_file_write_iter+0xf9/0x230 [ 94.250622][ T5349] ? generic_file_write_iter+0x103/0x550 [ 94.250633][ T5349] generic_file_write_iter+0x117/0x550 [ 94.250643][ T5349] ? __pfx_generic_file_write_iter+0x10/0x10 [ 94.250654][ T5349] ? __lock_acquire+0x6b6/0x2cf0 [ 94.250666][ T5349] ? aio_write+0x4c4/0x7a0 [ 94.250674][ T5349] aio_write+0x535/0x7a0 [ 94.250682][ T5349] ? __pfx_aio_write+0x10/0x10 [ 94.250691][ T5349] ? __might_fault+0xb0/0x130 [ 94.250702][ T5349] io_submit_one+0x78b/0x1310 [ 94.250711][ T5349] ? __pfx_io_submit_one+0x10/0x10 [ 94.250718][ T5349] ? __might_fault+0xb0/0x130 [ 94.250727][ T5349] ? __might_fault+0xb0/0x130 [ 94.250735][ T5349] __se_sys_io_submit+0x185/0x2f0 [ 94.250742][ T5349] ? __pfx___se_sys_io_submit+0x10/0x10 [ 94.250750][ T5349] ? do_syscall_64+0xbe/0xf80 [ 94.250760][ T5349] do_syscall_64+0xfa/0xf80 [ 94.250768][ T5349] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.250775][ T5349] ? clear_bhb_loop+0x60/0xb0 [ 94.250783][ T5349] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.250790][ T5349] RIP: 0033:0x7fafab38f7c9 [ 94.250798][ T5349] 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 [ 94.250804][ T5349] RSP: 002b:00007fafac301038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 94.250813][ T5349] RAX: ffffffffffffffda RBX: 00007fafab5e5fa0 RCX: 00007fafab38f7c9 [ 94.250818][ T5349] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007fafac2b7000 [ 94.250823][ T5349] RBP: 00007fafab413f91 R08: 0000000000000000 R09: 0000000000000000 [ 94.250828][ T5349] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 94.250834][ T5349] R13: 00007fafab5e6038 R14: 00007fafab5e5fa0 R15: 00007fffcc1ec248 [ 94.250845][ T5349] [ 94.455730][ T47] Bluetooth: hci0: command tx timeout