program: r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0) perf_event_open(&(0x7f0000000500)={0x2, 0x80, 0x55, 0x1, 0x0, 0x10, 0x0, 0x7fef, 0x82, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x107b7b, 0x1, @perf_config_ext={0x407fff, 0xaea}, 0x4545, 0x432, 0x9, 0x1, 0x2, 0x0, 0x4, 0x0, 0x8, 0x0, 0x2007}, r0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9) perf_event_open(&(0x7f0000000480)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5d31, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffe, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_mount_image$hfsplus(&(0x7f0000000600), &(0x7f0000000040)='./file1\x00', 0x0, &(0x7f0000000300)={[{@part={'part', 0x3d, 0x40}}, {@nodecompose}, {@part={'part', 0x3d, 0x7}}, {@part={'part', 0x3d, 0xc}}, {@uid}, {@barrier}, {@nls={'nls', 0x3d, 'cp866'}}, {@gid={'gid', 0x3d, 0xee00}}, {@umask={'umask', 0x3d, 0x1}}]}, 0x3, 0x5f4, 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r1 = openat$dir(0xffffffffffffff9c, &(0x7f0000000200)='./file1\x00', 0x2000, 0x12) getdents64(r1, &(0x7f0000000100)=""/154, 0x9a) unlinkat(0xffffffffffffff9c, &(0x7f0000000240)='./file1\x00', 0x0) r2 = syz_open_dev$dri(&(0x7f0000000000), 0x2d1, 0x0) r3 = syz_open_dev$dri(&(0x7f0000000000), 0x2d1, 0x0) r4 = syz_open_dev$dri(&(0x7f0000000580), 0x2d1, 0x0) ioctl$DRM_IOCTL_MODE_GETRESOURCES(r4, 0xc04064a0, &(0x7f00000001c0)={0x0, &(0x7f0000000080)=[0x0], 0x0, 0x0, 0x0, 0x1}) ioctl$DRM_IOCTL_MODE_GETCRTC(r3, 0xc06864a1, &(0x7f0000000280)={0x0, 0xfffffffffffffe6c, r5, 0x0}) syz_open_dev$dri(&(0x7f0000000000), 0x2d1, 0x0) ioctl$DRM_IOCTL_MODE_GETFB2(r4, 0xc06864ce, &(0x7f0000000700)={r6, 0x0, 0x0, 0x0, 0x0, [0x0]}) ioctl$DRM_IOCTL_MODE_ADDFB2(r2, 0xc06864b8, &(0x7f0000000800)={0x0, 0x80, 0xa, 0x34325241, 0x2, [r7, 0x0, 0x0, r7], [0x401]}) bpf$MAP_CREATE_TAIL_CALL(0x0, &(0x7f0000000740)={0x3, 0x4, 0x4, 0xa, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) syz_mount_image$ocfs2(&(0x7f0000004440), &(0x7f0000000040)='./file2\x00', 0x8c0, &(0x7f0000000c40)=ANY=[@ANYBLOB="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"], 0x1, 0x4421, 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socket$nl_route(0x10, 0x3, 0x0) r8 = socket(0x3c, 0x0, 0x800000) r9 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$mptcp(&(0x7f00000000c0), r9) getsockname$packet(r9, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000003c0)=0x14) sendmsg$nl_route_sched(r8, &(0x7f0000005840)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000001240)=@newqdisc={0x2c, 0x24, 0x5820a61ca228651, 0x0, 0x0, {0x0, 0x0, 0x0, r10, {}, {0xffff, 0x9}}, [@qdisc_kind_options=@q_drr={0x8}]}, 0x2c}}, 0x0) r11 = creat(&(0x7f0000000740)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0) write$FUSE_NOTIFY_RETRIEVE(r11, &(0x7f0000000000)={0x30, 0x5, 0x0, {0x0, 0x6, 0x0, 0x4}}, 0x30) openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x100) open(&(0x7f0000000180)='./bus\x00', 0x14937e, 0x111) mount(&(0x7f0000000280)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x5000, 0x0) r12 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0) ioctl$LOOP_SET_STATUS64(r12, 0x4c04, &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x1, 0x8005, 0x0, 0x0, 0x19, 0xd, "ef359f413bb93852f7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e737ff0edf110ff4117639c2eb4b78c660e677df701905b9aafab4afaaf755a3f6a004", "036c47c6780820d1cbf7966d61fdcf335263bd9bffbcc2542ded71038259ca171ce1a311ef54ec32d71e14ef3dc177e9b48b00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x8]}) [ 84.989882][ T5300] Bluetooth: hci0: command tx timeout [ 85.196556][ T5323] loop0: detected capacity change from 0 to 1024 [ 86.531804][ C0] hrtimer: interrupt took 52314 ns [ 86.678536][ T9] cfg80211: failed to load regulatory.db [ 86.997492][ T4667] Bluetooth: hci0: command tx timeout [ 87.039407][ T5323] netlink: 4 bytes leftover after parsing attributes in process `syz.0.0'. [ 87.125342][ T5323] loop0: detected capacity change from 1024 to 64 [ 87.191625][ T5322] hfsplus: invalid extended attribute record [ 87.195479][ T5322] [ 87.196573][ T5322] ====================================================== [ 87.199514][ T5322] WARNING: possible circular locking dependency detected [ 87.202588][ T5322] syzkaller #0 Not tainted [ 87.204610][ T5322] ------------------------------------------------------ [ 87.207676][ T5322] syz.0.0/5322 is trying to acquire lock: [ 87.209790][ T5322] ffff888051be28f8 (&sbi->alloc_mutex){+.+.}-{4:4}, at: hfsplus_block_free+0xc7/0x5f0 [ 87.213780][ T5322] [ 87.213780][ T5322] but task is already holding lock: [ 87.216876][ T5322] ffff888051be6988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x2a4/0xc70 [ 87.221316][ T5322] [ 87.221316][ T5322] which lock already depends on the new lock. [ 87.221316][ T5322] [ 87.225719][ T5322] [ 87.225719][ T5322] the existing dependency chain (in reverse order) is: [ 87.229416][ T5322] [ 87.229416][ T5322] -> #1 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}: [ 87.233232][ T5322] lock_acquire+0x120/0x360 [ 87.235462][ T5322] __mutex_lock+0x187/0x1350 [ 87.237735][ T5322] hfsplus_get_block+0x398/0x15d0 [ 87.240144][ T5322] block_read_full_folio+0x29f/0x830 [ 87.242676][ T5322] filemap_read_folio+0x117/0x380 [ 87.245280][ T5322] do_read_cache_folio+0x350/0x590 [ 87.247812][ T5322] read_cache_page+0x5d/0x170 [ 87.250046][ T5322] hfsplus_block_allocate+0xf3/0xc40 [ 87.252581][ T5322] hfsplus_file_extend+0xa9a/0x1ba0 [ 87.254860][ T5322] hfsplus_get_block+0x40a/0x15d0 [ 87.256992][ T5322] __block_write_begin_int+0x6b5/0x1900 [ 87.259379][ T5322] cont_write_begin+0x789/0xb50 [ 87.261484][ T5322] hfsplus_write_begin+0x66/0xb0 [ 87.263678][ T5322] generic_perform_write+0x2c5/0x900 [ 87.265959][ T5322] generic_file_write_iter+0x117/0x550 [ 87.268582][ T5322] vfs_write+0x5c9/0xb30 [ 87.270649][ T5322] ksys_write+0x145/0x250 [ 87.272783][ T5322] do_syscall_64+0xfa/0xfa0 [ 87.274997][ T5322] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.277774][ T5322] [ 87.277774][ T5322] -> #0 (&sbi->alloc_mutex){+.+.}-{4:4}: [ 87.281205][ T5322] validate_chain+0xb9b/0x2140 [ 87.283619][ T5322] __lock_acquire+0xab9/0xd20 [ 87.285751][ T5322] lock_acquire+0x120/0x360 [ 87.287926][ T5322] __mutex_lock+0x187/0x1350 [ 87.290117][ T5322] hfsplus_block_free+0xc7/0x5f0 [ 87.292502][ T5322] hfsplus_free_extents+0x121/0xa50 [ 87.295041][ T5322] hfsplus_file_truncate+0x754/0xc70 [ 87.297509][ T5322] hfsplus_file_release+0x303/0x3e0 [ 87.299948][ T5322] __fput+0x44c/0xa70 [ 87.301924][ T5322] task_work_run+0x1d4/0x260 [ 87.304192][ T5322] exit_to_user_mode_loop+0xe9/0x130 [ 87.306624][ T5322] do_syscall_64+0x2bd/0xfa0 [ 87.308790][ T5322] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.311517][ T5322] [ 87.311517][ T5322] other info that might help us debug this: [ 87.311517][ T5322] [ 87.315844][ T5322] Possible unsafe locking scenario: [ 87.315844][ T5322] [ 87.319003][ T5322] CPU0 CPU1 [ 87.321281][ T5322] ---- ---- [ 87.323633][ T5322] lock(&HFSPLUS_I(inode)->extents_lock); [ 87.326218][ T5322] lock(&sbi->alloc_mutex); [ 87.329225][ T5322] lock(&HFSPLUS_I(inode)->extents_lock); [ 87.332643][ T5322] lock(&sbi->alloc_mutex); [ 87.334643][ T5322] [ 87.334643][ T5322] *** DEADLOCK *** [ 87.334643][ T5322] [ 87.338059][ T5322] 2 locks held by syz.0.0/5322: [ 87.340159][ T5322] #0: ffff888051be6b78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: hfsplus_file_release+0xe2/0x3e0 [ 87.344813][ T5322] #1: ffff888051be6988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x2a4/0xc70 [ 87.349695][ T5322] [ 87.349695][ T5322] stack backtrace: [ 87.352233][ T5322] CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 87.352246][ T5322] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 87.352255][ T5322] Call Trace: [ 87.352262][ T5322] [ 87.352267][ T5322] dump_stack_lvl+0x189/0x250 [ 87.352284][ T5322] ? __pfx_dump_stack_lvl+0x10/0x10 [ 87.352294][ T5322] ? __pfx__printk+0x10/0x10 [ 87.352305][ T5322] ? print_lock_name+0xde/0x100 [ 87.352314][ T5322] print_circular_bug+0x2ee/0x310 [ 87.352330][ T5322] check_noncircular+0x134/0x160 [ 87.352346][ T5322] validate_chain+0xb9b/0x2140 [ 87.352361][ T5322] ? lockdep_unlock+0x89/0x120 [ 87.352372][ T5322] ? validate_chain+0x897/0x2140 [ 87.352387][ T5322] __lock_acquire+0xab9/0xd20 [ 87.352402][ T5322] ? hfsplus_block_free+0xc7/0x5f0 [ 87.352414][ T5322] lock_acquire+0x120/0x360 [ 87.352426][ T5322] ? hfsplus_block_free+0xc7/0x5f0 [ 87.352441][ T5322] __mutex_lock+0x187/0x1350 [ 87.352452][ T5322] ? hfsplus_block_free+0xc7/0x5f0 [ 87.352463][ T5322] ? rcu_is_watching+0x15/0xb0 [ 87.352477][ T5322] ? trace_contention_end+0x39/0x120 [ 87.352491][ T5322] ? __mutex_lock+0x335/0x1350 [ 87.352500][ T5322] ? hfsplus_block_free+0xc7/0x5f0 [ 87.352513][ T5322] ? __pfx___mutex_lock+0x10/0x10 [ 87.352524][ T5322] ? __mutex_unlock_slowpath+0x1a1/0x740 [ 87.352535][ T5322] hfsplus_block_free+0xc7/0x5f0 [ 87.352548][ T5322] ? trace_kmalloc+0x1f/0xd0 [ 87.352562][ T5322] ? __kmalloc_noprof+0x432/0x7f0 [ 87.352575][ T5322] ? hfsplus_dump_extent+0x7d/0xce0 [ 87.352584][ T5322] hfsplus_free_extents+0x121/0xa50 [ 87.352601][ T5322] hfsplus_file_truncate+0x754/0xc70 [ 87.352614][ T5322] ? __pfx_hfsplus_file_truncate+0x10/0x10 [ 87.352624][ T5322] ? down_write+0x162/0x1f0 [ 87.352634][ T5322] ? __pfx_down_write+0x10/0x10 [ 87.352647][ T5322] hfsplus_file_release+0x303/0x3e0 [ 87.352661][ T5322] ? __pfx_hfsplus_file_release+0x10/0x10 [ 87.352674][ T5322] __fput+0x44c/0xa70 [ 87.352688][ T5322] task_work_run+0x1d4/0x260 [ 87.352700][ T5322] ? __pfx_task_work_run+0x10/0x10 [ 87.352712][ T5322] ? exit_to_user_mode_loop+0x40/0x130 [ 87.352724][ T5322] exit_to_user_mode_loop+0xe9/0x130 [ 87.352735][ T5322] do_syscall_64+0x2bd/0xfa0 [ 87.352745][ T5322] ? lockdep_hardirqs_on+0x9c/0x150 [ 87.352758][ T5322] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.352770][ T5322] ? clear_bhb_loop+0x60/0xb0 [ 87.352781][ T5322] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.352792][ T5322] RIP: 0033:0x7fee3ab8eec9 [ 87.352802][ T5322] 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 [ 87.352810][ T5322] RSP: 002b:00007ffddb2bfa68 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 87.352828][ T5322] RAX: 0000000000000000 RBX: 00007fee3ade7da0 RCX: 00007fee3ab8eec9 [ 87.352835][ T5322] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 87.352841][ T5322] RBP: 00007fee3ade7da0 R08: 000000000002cdfc R09: 0000001edb2bfd5f [ 87.352848][ T5322] R10: 0000000000dd2fd0 R11: 0000000000000246 R12: 000000000001542e [ 87.352854][ T5322] R13: 00007ffddb2bfb60 R14: ffffffffffffffff R15: 00007ffddb2bfb80 [ 87.352865][ T5322] [ 87.490142][ C0] vkms_vblank_simulate: vblank timer overrun [ 87.501422][ T5322] hfsplus: unable to mark blocks free: error -5 [ 87.504420][ T5322] hfsplus: can't free extent: start 134, count 1