program: syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000100)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$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") r0 = creat(&(0x7f0000000000)='./bus\x00', 0x0) openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x140) mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file2\x00', 0x0) mount$overlay(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000000), 0x0, &(0x7f0000000180)={[{@workdir={'workdir', 0x3d, './file0'}}, {@lowerdir={'lowerdir', 0x3d, '.'}}, {@upperdir={'upperdir', 0x3d, './file2'}}], [], 0x2c}) openat$dir(0xffffffffffffff9c, &(0x7f0000000400)='./file0/file1\x00', 0x40, 0x83) openat$dir(0xffffffffffffff9c, &(0x7f0000000000)='./file0/file1\x00', 0x121542, 0x60) io_setup(0x202, &(0x7f0000000200)=0x0) io_submit(r1, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x70000}]) [ 85.032527][ T45] Bluetooth: hci0: command tx timeout [ 85.092110][ T5323] loop0: detected capacity change from 0 to 1024 [ 85.224557][ T24] audit: type=1800 audit(1775898277.427:2): pid=5323 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed comm="syz.0.0" name="file1" dev="loop0" ino=20 res=0 errno=0 [ 85.244952][ T5323] overlay: filesystem on ./file0 not supported [ 85.261089][ T24] audit: type=1804 audit(1775898277.457:3): pid=5323 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=invalid_pcr cause=ToMToU comm="syz.0.0" name="/newroot/0/file1/file0/file1" dev="loop0" ino=29 res=1 errno=0 [ 85.278921][ T5323] [ 85.279959][ T5323] ====================================================== [ 85.283026][ T5323] WARNING: possible circular locking dependency detected [ 85.286039][ T5323] syzkaller #0 Not tainted [ 85.288088][ T5323] ------------------------------------------------------ [ 85.291344][ T5323] syz.0.0/5323 is trying to acquire lock: [ 85.293394][ T5323] ffff888041e74e88 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x215/0x1d70 [ 85.297778][ T5323] [ 85.297778][ T5323] but task is already holding lock: [ 85.301732][ T5323] ffff888040bd60b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x168/0x2d0 [ 85.306812][ T5323] [ 85.306812][ T5323] which lock already depends on the new lock. [ 85.306812][ T5323] [ 85.311898][ T5323] [ 85.311898][ T5323] the existing dependency chain (in reverse order) is: [ 85.316394][ T5323] [ 85.316394][ T5323] -> #1 (&tree->tree_lock/1){+.+.}-{4:4}: [ 85.321173][ T5323] __mutex_lock+0x19f/0x1300 [ 85.323714][ T5323] hfsplus_find_init+0x168/0x2d0 [ 85.326167][ T5323] hfsplus_get_block+0x91e/0x1670 [ 85.328497][ T5323] block_read_full_folio+0x29f/0x830 [ 85.331130][ T5323] read_pages+0x373/0x5a0 [ 85.333478][ T5323] page_cache_ra_unbounded+0x79c/0xa50 [ 85.336481][ T5323] page_cache_ra_order+0xaf2/0xeb0 [ 85.339615][ T5323] filemap_get_pages+0x4c0/0x1f10 [ 85.342148][ T5323] filemap_read+0x447/0x1230 [ 85.344327][ T5323] __kernel_read+0x504/0x9b0 [ 85.346870][ T5323] integrity_kernel_read+0x89/0xd0 [ 85.350166][ T5323] ima_calc_file_hash+0x12c3/0x17f0 [ 85.353335][ T5323] ima_collect_measurement+0x48b/0x930 [ 85.356292][ T5323] process_measurement+0x12cd/0x1c80 [ 85.358916][ T5323] ima_file_check+0xe1/0x130 [ 85.361280][ T5323] security_file_post_open+0xb3/0x260 [ 85.364030][ T5323] path_openat+0x2e4d/0x3860 [ 85.366390][ T5323] do_file_open+0x23e/0x4a0 [ 85.368883][ T5323] do_sys_openat2+0x113/0x200 [ 85.371708][ T5323] __x64_sys_openat+0x138/0x170 [ 85.374788][ T5323] do_syscall_64+0x14d/0xf80 [ 85.377040][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.379836][ T5323] [ 85.379836][ T5323] -> #0 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}: [ 85.384168][ T5323] __lock_acquire+0x15a5/0x2cf0 [ 85.387371][ T5323] lock_acquire+0xf0/0x2e0 [ 85.390096][ T5323] __mutex_lock+0x19f/0x1300 [ 85.393007][ T5323] hfsplus_file_extend+0x215/0x1d70 [ 85.395771][ T5323] hfsplus_bmap_reserve+0x125/0x510 [ 85.398362][ T5323] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 85.401141][ T5323] __hfsplus_ext_cache_extent+0x89/0xe30 [ 85.404080][ T5323] hfsplus_file_extend+0x4af/0x1d70 [ 85.406720][ T5323] hfsplus_get_block+0x42c/0x1670 [ 85.409294][ T5323] __block_write_begin_int+0x6c6/0x1910 [ 85.412313][ T5323] cont_write_begin+0x737/0xae0 [ 85.414897][ T5323] hfsplus_write_begin+0x66/0xb0 [ 85.417501][ T5323] generic_perform_write+0x2e2/0x8f0 [ 85.420112][ T5323] generic_file_write_iter+0x14a/0x680 [ 85.422697][ T5323] aio_write+0x5cd/0x870 [ 85.425372][ T5323] io_submit_one+0x7bb/0x14c0 [ 85.427835][ T5323] __se_sys_io_submit+0x195/0x340 [ 85.430342][ T5323] do_syscall_64+0x14d/0xf80 [ 85.432668][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.435402][ T5323] [ 85.435402][ T5323] other info that might help us debug this: [ 85.435402][ T5323] [ 85.440294][ T5323] Possible unsafe locking scenario: [ 85.440294][ T5323] [ 85.444856][ T5323] CPU0 CPU1 [ 85.447278][ T5323] ---- ---- [ 85.449733][ T5323] lock(&tree->tree_lock/1); [ 85.451867][ T5323] lock(&HFSPLUS_I(inode)->extents_lock); [ 85.455410][ T5323] lock(&tree->tree_lock/1); [ 85.458475][ T5323] lock(&HFSPLUS_I(inode)->extents_lock); [ 85.461442][ T5323] [ 85.461442][ T5323] *** DEADLOCK *** [ 85.461442][ T5323] [ 85.465688][ T5323] 3 locks held by syz.0.0/5323: [ 85.467921][ T5323] #0: ffff888041e4e4b8 (&sb->s_type->i_mutex_key#25){+.+.}-{4:4}, at: generic_file_write_iter+0x11e/0x680 [ 85.472467][ T5323] #1: ffff888041e4e2c8 (&hip->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x215/0x1d70 [ 85.478588][ T5323] #2: ffff888040bd60b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x168/0x2d0 [ 85.483670][ T5323] [ 85.483670][ T5323] stack backtrace: [ 85.486269][ T5323] CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 85.486289][ T5323] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 85.486297][ T5323] Call Trace: [ 85.486306][ T5323] [ 85.486312][ T5323] dump_stack_lvl+0xe8/0x150 [ 85.486363][ T5323] print_circular_bug+0x2e1/0x300 [ 85.486389][ T5323] check_noncircular+0x12e/0x150 [ 85.486413][ T5323] __lock_acquire+0x15a5/0x2cf0 [ 85.486430][ T5323] ? rcu_is_watching+0x15/0xb0 [ 85.486453][ T5323] ? lock_release+0x4b/0x3d0 [ 85.486465][ T5323] ? lock_release+0x4b/0x3d0 [ 85.486480][ T5323] lock_acquire+0xf0/0x2e0 [ 85.486493][ T5323] ? hfsplus_file_extend+0x215/0x1d70 [ 85.486507][ T5323] __mutex_lock+0x19f/0x1300 [ 85.486522][ T5323] ? hfsplus_file_extend+0x215/0x1d70 [ 85.486533][ T5323] ? stack_trace_save+0xa9/0x100 [ 85.486560][ T5323] ? __pfx_stack_trace_save+0x10/0x10 [ 85.486567][ T5323] ? hfsplus_file_extend+0x215/0x1d70 [ 85.486576][ T5323] ? __pfx___mutex_lock+0x10/0x10 [ 85.486591][ T5323] ? lockdep_unlock+0x5d/0xd0 [ 85.486602][ T5323] ? __lock_acquire+0x146e/0x2cf0 [ 85.486616][ T5323] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 85.486629][ T5323] hfsplus_file_extend+0x215/0x1d70 [ 85.486641][ T5323] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 85.486649][ T5323] ? __pfx___mutex_trylock_common+0x10/0x10 [ 85.486694][ T5323] ? rcu_is_watching+0x15/0xb0 [ 85.486709][ T5323] ? trace_contention_end+0x3d/0x150 [ 85.486721][ T5323] ? __asan_memset+0x22/0x50 [ 85.486754][ T5323] ? hfsplus_brec_find+0x19d/0x520 [ 85.486771][ T5323] hfsplus_bmap_reserve+0x125/0x510 [ 85.486789][ T5323] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 85.486802][ T5323] __hfsplus_ext_cache_extent+0x89/0xe30 [ 85.486815][ T5323] hfsplus_file_extend+0x4af/0x1d70 [ 85.486825][ T5323] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 85.486832][ T5323] ? clean_bdev_aliases+0x62e/0x750 [ 85.486841][ T5323] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 85.486849][ T5323] hfsplus_get_block+0x42c/0x1670 [ 85.486857][ T5323] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.486864][ T5323] ? do_raw_spin_unlock+0x4d/0x210 [ 85.486875][ T5323] ? _raw_spin_unlock+0x28/0x50 [ 85.486895][ T5323] __block_write_begin_int+0x6c6/0x1910 [ 85.486913][ T5323] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.486924][ T5323] ? __pfx___block_write_begin_int+0x10/0x10 [ 85.486940][ T5323] cont_write_begin+0x737/0xae0 [ 85.486953][ T5323] ? irqentry_exit+0x59e/0x620 [ 85.486970][ T5323] ? __pfx_cont_write_begin+0x10/0x10 [ 85.486980][ T5323] hfsplus_write_begin+0x66/0xb0 [ 85.486992][ T5323] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.486999][ T5323] generic_perform_write+0x2e2/0x8f0 [ 85.487010][ T5323] ? __pfx_generic_perform_write+0x10/0x10 [ 85.487018][ T5323] ? file_update_time_flags+0x219/0x4a0 [ 85.487026][ T5323] ? __generic_file_write_iter+0xf9/0x230 [ 85.487035][ T5323] ? generic_file_write_iter+0x136/0x680 [ 85.487047][ T5323] generic_file_write_iter+0x14a/0x680 [ 85.487063][ T5323] ? __pfx_generic_file_write_iter+0x10/0x10 [ 85.487075][ T5323] ? do_raw_spin_lock+0x12b/0x2f0 [ 85.487087][ T5323] ? __lock_acquire+0x6b5/0x2cf0 [ 85.487102][ T5323] ? lockdep_hardirqs_on+0x7a/0x110 [ 85.487117][ T5323] ? kasan_save_track+0x4f/0x80 [ 85.487127][ T5323] ? aio_write+0x547/0x870 [ 85.487135][ T5323] aio_write+0x5cd/0x870 [ 85.487143][ T5323] ? __pfx_aio_write+0x10/0x10 [ 85.487154][ T5323] io_submit_one+0x7bb/0x14c0 [ 85.487165][ T5323] ? irqentry_exit+0x59e/0x620 [ 85.487178][ T5323] ? trace_irq_disable+0x3b/0x150 [ 85.487219][ T5323] ? __pfx_io_submit_one+0x10/0x10 [ 85.487234][ T5323] ? __might_fault+0xaf/0x130 [ 85.487267][ T5323] __se_sys_io_submit+0x195/0x340 [ 85.487281][ T5323] ? __pfx___se_sys_io_submit+0x10/0x10 [ 85.487294][ T5323] do_syscall_64+0x14d/0xf80 [ 85.487308][ T5323] ? trace_irq_disable+0x3b/0x150 [ 85.487316][ T5323] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.487326][ T5323] ? clear_bhb_loop+0x40/0x90 [ 85.487341][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.487353][ T5323] RIP: 0033:0x7f63e5b9c819 [ 85.487366][ T5323] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 85.487378][ T5323] RSP: 002b:00007f63e6a7ffe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 85.487391][ T5323] RAX: ffffffffffffffda RBX: 00007f63e5e15fa0 RCX: 00007f63e5b9c819 [ 85.487397][ T5323] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007f63e6a36000 [ 85.487402][ T5323] RBP: 00007f63e5c32c91 R08: 0000000000000000 R09: 0000000000000000 [ 85.487407][ T5323] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.487411][ T5323] R13: 00007f63e5e16038 R14: 00007f63e5e15fa0 R15: 00007ffcc1d4fb68 [ 85.487418][ T5323]