program: socket$inet6_tcp(0xa, 0x1, 0x0) r0 = socket$inet6_sctp(0xa, 0x5, 0x84) setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000ac0)=@filter={'filter\x00', 0xe, 0x4, 0x358, 0xffffffff, 0x1e8, 0x1e8, 0xd0, 0xffffffff, 0xffffffff, 0x320, 0x320, 0x320, 0xffffffff, 0x4, 0x0, {[{{@uncond, 0x0, 0xa8, 0x320}, @common=@inet=@SET1={0x28, 'SET\x00', 0x1, {{0x3, 0x3, 0x4}, {0x0, 0x4, 0x3}}}}, {{@ipv6={@mcast2, @private0={0xfc, 0x0, '\x00', 0x1}, [0x0, 0xff, 0xffffff00, 0xffffffff], [0xff, 0xffffff00, 0xffffffff, 0xff], 'wlan0\x00', 'bridge_slave_0\x00', {}, {0xff}, 0x0, 0x4, 0x6, 0x1}, 0x0, 0xa8, 0xd0}, @common=@unspec=@NFQUEUE1={0x28, 'NFQUEUE\x00', 0x1, {0x0, 0x8000}}}, {{@ipv6={@private1={0xfc, 0x1, '\x00', 0x1}, @mcast2, [0xffffffff, 0xffffff00, 0xffffff, 0x3cfa071f66be0dd3], [0xff000000, 0xff000000, 0xffffff00, 0xff], 'veth1_to_hsr\x00', 'vlan0\x00', {0xff}, {}, 0x3b, 0x78, 0x2, 0x1}, 0x0, 0xa8, 0xe8}, @common=@unspec=@ERROR={0x40, 'ERROR\x00', 0x0, "9847fdc1479cca6e850542bb97e4096e345c9f1a70b1d8501618472b17cd"}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x3b8) setsockopt$inet_opts(0xffffffffffffffff, 0x0, 0x4, 0x0, 0x0) connect$inet(0xffffffffffffffff, 0x0, 0x0) syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$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") r1 = creat(&(0x7f0000000000)='./bus\x00', 0x0) io_setup(0x202, &(0x7f0000000200)=0x0) io_submit(r2, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r1, &(0x7f0000000000), 0x70000}]) r3 = geteuid() syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file0\x00', 0x0, &(0x7f0000000240)={[{@delalloc}, {@nodioread_nolock}, {@nodelalloc}], [{@subj_user}, {@uid_eq={'uid', 0x3d, r3}}]}, 0x3, 0x4a3, &(0x7f00000017c0)="$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") unlinkat(0xffffffffffffff9c, &(0x7f0000000140)='./file1\x00', 0x0) r4 = openat$cgroup_ro(0xffffffffffffffff, &(0x7f0000000000)='freezer.parent_freezing\x00', 0x275a, 0x0) write$binfmt_script(r4, &(0x7f0000000200), 0xfea7) [ 73.926742][ T4662] Bluetooth: hci0: command tx timeout [ 74.008137][ T5315] loop0: detected capacity change from 0 to 1024 [ 74.130519][ T5315] [ 74.131601][ T5315] ====================================================== [ 74.134532][ T5315] WARNING: possible circular locking dependency detected [ 74.137439][ T5315] syzkaller #0 Not tainted [ 74.139387][ T5315] ------------------------------------------------------ [ 74.142518][ T5315] syz.0.0/5315 is trying to acquire lock: [ 74.145503][ T5315] ffff88803dbb40b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x168/0x2d0 [ 74.149741][ T5315] [ 74.149741][ T5315] but task is already holding lock: [ 74.153063][ T5315] ffff888042a51c08 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x2b3/0xc30 [ 74.157676][ T5315] [ 74.157676][ T5315] which lock already depends on the new lock. [ 74.157676][ T5315] [ 74.162061][ T5315] [ 74.162061][ T5315] the existing dependency chain (in reverse order) is: [ 74.165728][ T5315] [ 74.165728][ T5315] -> #1 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}: [ 74.169378][ T5315] __mutex_lock+0x19f/0x1300 [ 74.171831][ T5315] hfsplus_file_extend+0x215/0x1d70 [ 74.174290][ T5315] hfsplus_bmap_reserve+0x125/0x510 [ 74.176534][ T5315] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 74.179158][ T5315] __hfsplus_ext_cache_extent+0x89/0xe30 [ 74.181686][ T5315] hfsplus_file_extend+0x4af/0x1d70 [ 74.184104][ T5315] hfsplus_get_block+0x42c/0x1670 [ 74.186503][ T5315] __block_write_begin_int+0x6c6/0x1910 [ 74.188953][ T5315] cont_write_begin+0x737/0xae0 [ 74.191223][ T5315] hfsplus_write_begin+0x66/0xb0 [ 74.193510][ T5315] generic_perform_write+0x2e2/0x8f0 [ 74.196070][ T5315] generic_file_write_iter+0x14a/0x680 [ 74.198592][ T5315] aio_write+0x5cd/0x870 [ 74.200615][ T5315] io_submit_one+0x7bb/0x14c0 [ 74.202898][ T5315] __se_sys_io_submit+0x195/0x340 [ 74.205282][ T5315] do_syscall_64+0x14d/0xf80 [ 74.207584][ T5315] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.210287][ T5315] [ 74.210287][ T5315] -> #0 (&tree->tree_lock/1){+.+.}-{4:4}: [ 74.213688][ T5315] __lock_acquire+0x15a5/0x2cf0 [ 74.215993][ T5315] lock_acquire+0xf0/0x2e0 [ 74.218615][ T5315] __mutex_lock+0x19f/0x1300 [ 74.221026][ T5315] hfsplus_find_init+0x168/0x2d0 [ 74.223205][ T5315] hfsplus_file_truncate+0x39b/0xc30 [ 74.226040][ T5315] hfsplus_delete_inode+0x180/0x230 [ 74.228958][ T5315] hfsplus_unlink+0x4ee/0x930 [ 74.231339][ T5315] vfs_unlink+0x272/0x6c0 [ 74.233304][ T5315] filename_unlinkat+0x3cd/0x610 [ 74.235642][ T5315] __se_sys_unlinkat+0x83/0x1a0 [ 74.237903][ T5315] do_syscall_64+0x14d/0xf80 [ 74.240147][ T5315] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.243019][ T5315] [ 74.243019][ T5315] other info that might help us debug this: [ 74.243019][ T5315] [ 74.247349][ T5315] Possible unsafe locking scenario: [ 74.247349][ T5315] [ 74.250479][ T5315] CPU0 CPU1 [ 74.252767][ T5315] ---- ---- [ 74.255079][ T5315] lock(&HFSPLUS_I(inode)->extents_lock); [ 74.257535][ T5315] lock(&tree->tree_lock/1); [ 74.260743][ T5315] lock(&HFSPLUS_I(inode)->extents_lock); [ 74.264391][ T5315] lock(&tree->tree_lock/1); [ 74.266459][ T5315] [ 74.266459][ T5315] *** DEADLOCK *** [ 74.266459][ T5315] [ 74.269817][ T5315] 5 locks held by syz.0.0/5315: [ 74.271878][ T5315] #0: ffff8880374e8420 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 74.275941][ T5315] #1: ffff888042a53238 (&type->i_mutex_dir_key#8/1){+.+.}-{4:4}, at: filename_unlinkat+0x2a7/0x610 [ 74.280610][ T5315] #2: ffff888042a51df8 (&sb->s_type->i_mutex_key#25){+.+.}-{4:4}, at: vfs_unlink+0xed/0x6c0 [ 74.285184][ T5315] #3: ffff888011aa6198 (&sbi->vh_mutex){+.+.}-{4:4}, at: hfsplus_unlink+0x182/0x930 [ 74.289362][ T5315] #4: ffff888042a51c08 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x2b3/0xc30 [ 74.294471][ T5315] [ 74.294471][ T5315] stack backtrace: [ 74.297170][ T5315] CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 74.297186][ T5315] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 74.297192][ T5315] Call Trace: [ 74.297201][ T5315] [ 74.297207][ T5315] dump_stack_lvl+0xe8/0x150 [ 74.297236][ T5315] print_circular_bug+0x2e1/0x300 [ 74.297253][ T5315] check_noncircular+0x12e/0x150 [ 74.297270][ T5315] __lock_acquire+0x15a5/0x2cf0 [ 74.297283][ T5315] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 74.297299][ T5315] ? kasan_save_track+0x4f/0x80 [ 74.297316][ T5315] ? kasan_save_track+0x3e/0x80 [ 74.297328][ T5315] ? __kasan_kmalloc+0x93/0xb0 [ 74.297342][ T5315] ? __kmalloc_noprof+0x35c/0x760 [ 74.297356][ T5315] ? hfsplus_find_init+0x8c/0x2d0 [ 74.297367][ T5315] ? hfsplus_file_truncate+0x39b/0xc30 [ 74.297380][ T5315] ? hfsplus_delete_inode+0x180/0x230 [ 74.297402][ T5315] lock_acquire+0xf0/0x2e0 [ 74.297417][ T5315] ? hfsplus_find_init+0x168/0x2d0 [ 74.297431][ T5315] __mutex_lock+0x19f/0x1300 [ 74.297445][ T5315] ? hfsplus_find_init+0x168/0x2d0 [ 74.297459][ T5315] ? hfsplus_find_init+0x168/0x2d0 [ 74.297471][ T5315] ? __pfx___mutex_lock+0x10/0x10 [ 74.297485][ T5315] ? rcu_is_watching+0x15/0xb0 [ 74.297501][ T5315] ? __kmalloc_noprof+0x37d/0x760 [ 74.297514][ T5315] ? hfsplus_find_init+0x8c/0x2d0 [ 74.297524][ T5315] ? __kmalloc_noprof+0x1b8/0x760 [ 74.297538][ T5315] hfsplus_find_init+0x168/0x2d0 [ 74.297549][ T5315] hfsplus_file_truncate+0x39b/0xc30 [ 74.297566][ T5315] ? hfsplus_delete_cat+0x860/0xe80 [ 74.297581][ T5315] ? __pfx_hfsplus_file_truncate+0x10/0x10 [ 74.297597][ T5315] ? __pfx___mutex_lock+0x10/0x10 [ 74.297614][ T5315] hfsplus_delete_inode+0x180/0x230 [ 74.297630][ T5315] hfsplus_unlink+0x4ee/0x930 [ 74.297645][ T5315] ? __pfx_hfsplus_unlink+0x10/0x10 [ 74.297662][ T5315] ? __pfx_down_write+0x10/0x10 [ 74.297672][ T5315] ? try_break_deleg+0x5b/0x180 [ 74.297686][ T5315] vfs_unlink+0x272/0x6c0 [ 74.297699][ T5315] filename_unlinkat+0x3cd/0x610 [ 74.297710][ T5315] ? __pfx_filename_unlinkat+0x10/0x10 [ 74.297721][ T5315] ? do_getname+0x151/0x250 [ 74.297732][ T5315] __se_sys_unlinkat+0x83/0x1a0 [ 74.297742][ T5315] do_syscall_64+0x14d/0xf80 [ 74.297757][ T5315] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.297766][ T5315] ? clear_bhb_loop+0x40/0x90 [ 74.297778][ T5315] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.297789][ T5315] RIP: 0033:0x7f780a79c629 [ 74.297800][ T5315] 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 [ 74.297808][ T5315] RSP: 002b:00007f780b597028 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 [ 74.297821][ T5315] RAX: ffffffffffffffda RBX: 00007f780aa15fa0 RCX: 00007f780a79c629 [ 74.297829][ T5315] RDX: 0000000000000000 RSI: 0000200000000140 RDI: ffffffffffffff9c [ 74.297836][ T5315] RBP: 00007f780a832b39 R08: 0000000000000000 R09: 0000000000000000 [ 74.297842][ T5315] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.297850][ T5315] R13: 00007f780aa16038 R14: 00007f780aa15fa0 R15: 00007fffcd879c68 [ 74.297859][ T5315]