program: syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$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") r0 = creat(&(0x7f00000001c0)='./file1\x00', 0x0) io_setup(0x202, &(0x7f0000000200)=0x0) socket$packet(0x11, 0x2, 0x300) r2 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) r3 = openat$tun(0xffffffffffffff9c, &(0x7f0000000140), 0x40241, 0x0) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) r4 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r4, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) ioctl$PERF_EVENT_IOC_ID(r4, 0x80082407, &(0x7f0000000100)) ioctl$SIOCGSTAMPNS(r2, 0x8907, 0x0) recvfrom$inet6(r2, 0x0, 0x0, 0x10000, 0x0, 0x0) write$tun(r3, &(0x7f0000000240)=ANY=[@ANYBLOB="000086dd0500560008001400000060ec970001983a00fc000018c6ba35000000000000000700ff020000000000000000000000000001"], 0xfdef) io_submit(r1, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x70000}]) [ 86.246659][ T4704] Bluetooth: hci0: command tx timeout [ 86.392918][ T5360] loop0: detected capacity change from 0 to 1024 [ 86.447749][ T5360] syz.0.0 uses obsolete (PF_INET,SOCK_PACKET) [ 86.479971][ T10] cfg80211: failed to load regulatory.db [ 86.510162][ T5360] [ 86.511275][ T5360] ============================================ [ 86.513881][ T5360] WARNING: possible recursive locking detected [ 86.516351][ T5360] syzkaller #0 Not tainted [ 86.518194][ T5360] -------------------------------------------- [ 86.520777][ T5360] syz.0.0/5360 is trying to acquire lock: [ 86.523286][ T5360] ffff8880530b8108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 86.528134][ T5360] [ 86.528134][ T5360] but task is already holding lock: [ 86.531290][ T5360] ffff8880530ba988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 86.536820][ T5360] [ 86.536820][ T5360] other info that might help us debug this: [ 86.540232][ T5360] Possible unsafe locking scenario: [ 86.540232][ T5360] [ 86.543450][ T5360] CPU0 [ 86.545349][ T5360] ---- [ 86.546860][ T5360] lock(&HFSPLUS_I(inode)->extents_lock); [ 86.549476][ T5360] lock(&HFSPLUS_I(inode)->extents_lock); [ 86.551969][ T5360] [ 86.551969][ T5360] *** DEADLOCK *** [ 86.551969][ T5360] [ 86.555282][ T5360] May be due to missing lock nesting notation [ 86.555282][ T5360] [ 86.558668][ T5360] 3 locks held by syz.0.0/5360: [ 86.560640][ T5360] #0: ffff8880530bab78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: generic_file_write_iter+0xeb/0x550 [ 86.565307][ T5360] #1: ffff8880530ba988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 86.570125][ T5360] #2: ffff888011c8a0b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0 [ 86.574395][ T5360] [ 86.574395][ T5360] stack backtrace: [ 86.576933][ T5360] CPU: 0 UID: 0 PID: 5360 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 86.576951][ T5360] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 86.576959][ T5360] Call Trace: [ 86.576967][ T5360] [ 86.576972][ T5360] dump_stack_lvl+0x189/0x250 [ 86.576991][ T5360] ? __pfx_dump_stack_lvl+0x10/0x10 [ 86.577005][ T5360] ? __pfx__printk+0x10/0x10 [ 86.577022][ T5360] ? print_lock_name+0xde/0x100 [ 86.577038][ T5360] print_deadlock_bug+0x28b/0x2a0 [ 86.577050][ T5360] validate_chain+0x1a3f/0x2140 [ 86.577062][ T5360] ? __bfs+0x154/0x2a0 [ 86.577073][ T5360] ? check_path+0x21/0x40 [ 86.577084][ T5360] ? look_up_lock_class+0x74/0x170 [ 86.577143][ T5360] ? register_lock_class+0x51/0x320 [ 86.577160][ T5360] __lock_acquire+0xab9/0xd20 [ 86.577177][ T5360] ? hfsplus_file_extend+0x1fc/0x1990 [ 86.577189][ T5360] lock_acquire+0x120/0x360 [ 86.577204][ T5360] ? hfsplus_file_extend+0x1fc/0x1990 [ 86.577218][ T5360] __mutex_lock+0x187/0x1350 [ 86.577233][ T5360] ? hfsplus_file_extend+0x1fc/0x1990 [ 86.577243][ T5360] ? check_path+0x21/0x40 [ 86.577252][ T5360] ? check_noncircular+0xe0/0x160 [ 86.577263][ T5360] ? hfsplus_file_extend+0x1fc/0x1990 [ 86.577273][ T5360] ? lockdep_unlock+0x89/0x120 [ 86.577288][ T5360] ? __pfx___mutex_lock+0x10/0x10 [ 86.577307][ T5360] hfsplus_file_extend+0x1fc/0x1990 [ 86.577317][ T5360] ? __lock_acquire+0xab9/0xd20 [ 86.577333][ T5360] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 86.577344][ T5360] ? __pfx___mutex_trylock_common+0x10/0x10 [ 86.577355][ T5360] ? __se_sys_io_submit+0x185/0x2f0 [ 86.577369][ T5360] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.577380][ T5360] ? rcu_is_watching+0x15/0xb0 [ 86.577390][ T5360] ? trace_contention_end+0x39/0x120 [ 86.577397][ T5360] ? __mutex_lock+0x335/0x1350 [ 86.577406][ T5360] ? hfsplus_brec_find+0x191/0x500 [ 86.577417][ T5360] hfsplus_bmap_reserve+0x122/0x500 [ 86.577427][ T5360] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 86.577436][ T5360] __hfsplus_ext_cache_extent+0x89/0xe30 [ 86.577448][ T5360] hfsplus_file_extend+0x444/0x1990 [ 86.577460][ T5360] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 86.577472][ T5360] ? clean_bdev_aliases+0x5c9/0x6b0 [ 86.577490][ T5360] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 86.577508][ T5360] hfsplus_get_block+0x411/0x1530 [ 86.577522][ T5360] ? __pfx_hfsplus_get_block+0x10/0x10 [ 86.577533][ T5360] ? do_raw_spin_unlock+0x4d/0x240 [ 86.577543][ T5360] ? _raw_spin_unlock+0x28/0x50 [ 86.577552][ T5360] __block_write_begin_int+0x6b5/0x1900 [ 86.577560][ T5360] ? folio_add_lru+0x1b2/0x3d0 [ 86.577571][ T5360] ? __pfx_hfsplus_get_block+0x10/0x10 [ 86.577578][ T5360] ? __pfx___block_write_begin_int+0x10/0x10 [ 86.577586][ T5360] cont_write_begin+0x789/0xb50 [ 86.577594][ T5360] ? __pfx_cont_write_begin+0x10/0x10 [ 86.577600][ T5360] ? __pfx___might_resched+0x10/0x10 [ 86.577607][ T5360] ? __mark_inode_dirty+0x3d2/0xe10 [ 86.577619][ T5360] ? folio_unlock+0x101/0x160 [ 86.577628][ T5360] hfsplus_write_begin+0x66/0xb0 [ 86.577635][ T5360] ? __pfx_hfsplus_get_block+0x10/0x10 [ 86.577642][ T5360] generic_perform_write+0x2c5/0x900 [ 86.577650][ T5360] ? __pfx_generic_perform_write+0x10/0x10 [ 86.577659][ T5360] ? file_update_time+0x2da/0x490 [ 86.577673][ T5360] ? __generic_file_write_iter+0xf9/0x230 [ 86.577682][ T5360] ? generic_file_write_iter+0x103/0x550 [ 86.577693][ T5360] generic_file_write_iter+0x117/0x550 [ 86.577704][ T5360] ? __pfx_generic_file_write_iter+0x10/0x10 [ 86.577714][ T5360] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.577728][ T5360] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 86.577750][ T5360] ? __pfx_aa_file_perm+0x10/0x10 [ 86.577772][ T5360] ? __lock_acquire+0xab9/0xd20 [ 86.577787][ T5360] ? aio_write+0x4c4/0x7a0 [ 86.577798][ T5360] aio_write+0x535/0x7a0 [ 86.577810][ T5360] ? __pfx_aio_write+0x10/0x10 [ 86.577822][ T5360] ? __might_fault+0xb0/0x130 [ 86.577834][ T5360] io_submit_one+0x78b/0x1310 [ 86.577846][ T5360] ? __pfx_io_submit_one+0x10/0x10 [ 86.577856][ T5360] ? __might_fault+0xb0/0x130 [ 86.577868][ T5360] ? __might_fault+0xb0/0x130 [ 86.577879][ T5360] __se_sys_io_submit+0x185/0x2f0 [ 86.577893][ T5360] ? __pfx___se_sys_io_submit+0x10/0x10 [ 86.577909][ T5360] ? do_syscall_64+0xbe/0x3b0 [ 86.577925][ T5360] do_syscall_64+0xfa/0x3b0 [ 86.577941][ T5360] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.577954][ T5360] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.577963][ T5360] ? clear_bhb_loop+0x60/0xb0 [ 86.577976][ T5360] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.577986][ T5360] RIP: 0033:0x7fc545d8ebe9 [ 86.577997][ T5360] 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 [ 86.578007][ T5360] RSP: 002b:00007fc546b8d038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 86.578023][ T5360] RAX: ffffffffffffffda RBX: 00007fc545fc5fa0 RCX: 00007fc545d8ebe9 [ 86.578031][ T5360] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007fc546b43000 [ 86.578039][ T5360] RBP: 00007fc545e11e19 R08: 0000000000000000 R09: 0000000000000000 [ 86.578045][ T5360] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.578055][ T5360] R13: 00007fc545fc6038 R14: 00007fc545fc5fa0 R15: 00007fff7ad48cf8 [ 86.578067][ T5360] [ 88.321390][ T4704] Bluetooth: hci0: command tx timeout