program: syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$eJzs3U1sHGf9B/DvbnbX3vz/Sp02SQOqRNRIBRGROLGSYi4NCKFIVKgqB8TRSpzGyiatHBc5EYLwfuDCoXeKRG5cQOIeVM7AqVcfKyFx6SmAxKKZnbXXr9l1Yq8tPp9odp5nnpd5nt/M7OzOKnKA/1nXzqXxOLVcO/fmcpFfeTTTWXk0c6efTjKRpJ40eqvU7ia1j5Kr6S35TLGx6q623X4+WJh9++NPVz7p5RrVUtav79Rukyv1LTY+rJacSXKkWj+Ddf1d39Bfa+TuaqszLAJ2th84GLdmku463z21VvJUw1+3wIFVK++bm6/5qeRoksnqc0Dvrti7Zx9qD8c9AAAAANgHL/yy/Ap/bNzjAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgMOk9/f/i1W51PvpM6n1//5/q9qWKn2oPR73AAAAAAAAAABgdN/8/w0bPvckT7KcY/18t1b+5v9qmTlRvv5f3s+9zGcx57OcuSxlKYu5mGSqLG+Wr63luaWlxYtDtLy02jIDLS8NOYP27icPAAAAAAAAAIdFY/QmP861td//AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADgIKglR3qrcjnRT0+l3kgymaRV1HuY/LWfPpB+/afBXPff3dKmao/3c0wAAAAwJi88yZMs51g/362V3/lPld/7J/N+7mYpC1lKJ/O5UT4L6H3rr688mumsPJq5Uyyb+/3qP0YaRtljes8ett7z6bJGOzezUG45n+t5N53cSL1sWTjdH8/W4/pRMabaG5UhR3ajWhcz/1WaI81qN2pD15wqI1KMqBeR6aptEY3jO0dixKPT31M/9hdTX33yc+J5xny5t3r9t711MZ+fjxSTvbYxEpcGzr5TK6ntEInk83/83Xdude7enrh579zBmdIIJgaeoG2MxMxAJF7e+ZxIM1Ukbh3WSAyaLiNxcjV/Ld/It3MuZ/JWFrOQ72UuS5nPmXw9czmSuep8Ll6ndo7U1XW5t542klZ5XJrVu+jwY1rKXF4t2x7LQr6Vd3Mj87lS/ruUi3m96jGrR/jkEFd9fbR32rNfGHiY/Isk7eHa7YNiYMdX706DZ/10eR0cX7dl7Tp48fnfjxqfrRLFPn4ycETGb2MkLg5E4qWdI/Gb8m3lXufu7cVbc+8Nub/XqnVxHf3sQN0livPlxeJglbn1Z0dR9tLGsslevFrVLy69svV33KLs5GrZ9lfq5VzObFn71JY9XSrLXt6ybKYsOz1Qtu7z1tXe5y0ADryjXzzaav+9/Zf2h+2ftm+135z82sSXJ15ppfnn5lca00deq79S+0M+zA/Wvv8DAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAC7d+/+g9tznc784oZEt9v94TZFe5hoJ+lvSZ7Wqpmn19mbRCtJmWj0E6P1MzFU5dba0Xnj988y5uaorZLnEqhGdZLdf3D7n91ud98P0xaJ5g7n/FqiW9lU1B2q+dgS/+o+vw7H/MYE7LkLS3feu3Dv/oMvLdyZe2f+nfm7s5cvz07PXr7ytws3Fzrz073XcY8S2AtrN/1xjwQAAAAAAAAAAAAY1n78t4Rtdv2ffZ4qAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAcEhdOzdRpc5PF68rj2Y6xdJPr1Ysq9WT1L6f1D5Krqa3ZGqgu9p2+/lgYfbtjz9d+aSXa1RLWb++rl1zN7N4WC05k+RItR40+Qz9Xa/WuxpZqbY6wyJgZ/uBg3H7bwAAAP//2wMQAg==") r0 = creat(&(0x7f0000000100)='./file1\x00', 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NL80211_CMD_SET_BEACON(r1, &(0x7f00000016c0)={0x0, 0x0, &(0x7f0000001680)={&(0x7f0000000840)=ANY=[@ANYBLOB='P\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000002000000000000e0000000c00990000000000000000002f000e008429060300080211000000000000803f000008021100000100d30000000000ffffffffffffb4ff455c430000"], 0x50}}, 0x2000) openat$cachefiles(0xffffffffffffff9c, &(0x7f0000000300), 0x20400, 0x0) syz_kvm_setup_cpu$x86(r0, r0, &(0x7f0000fe5000/0x18000)=nil, &(0x7f0000000140)=[@textreal={0x8, &(0x7f0000000000)="660ffc130f790c0f20d2b87f018ed0660f72f20d0f01cbe90090366dab67640fa500", 0x22}], 0x1, 0x10, &(0x7f0000000180), 0x0) io_setup(0x202, &(0x7f0000000200)=0x0) r4 = syz_genetlink_get_family_id$batadv(&(0x7f00000001c0), r1) sendmsg$BATADV_CMD_SET_MESH(r1, &(0x7f00000002c0)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x38, r4, 0x1, 0x70bd2d, 0x25dfdbfd, {}, [@BATADV_ATTR_VLANID={0x6}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @random="f717c505c6be"}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x10001}]}, 0x38}}, 0x4040) io_submit(r3, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x70000}]) [ 67.954071][ T4669] Bluetooth: hci0: command tx timeout [ 68.042583][ T5314] loop0: detected capacity change from 0 to 1024 [ 68.112344][ T5314] [ 68.113462][ T5314] ============================================ [ 68.116019][ T5314] WARNING: possible recursive locking detected [ 68.118656][ T5314] 6.15.0-syzkaller-01599-gddddf9d64f73 #0 Not tainted [ 68.121495][ T5314] -------------------------------------------- [ 68.124047][ T5314] syz.0.0/5314 is trying to acquire lock: [ 68.126473][ T5314] ffff888052b8c108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 68.131210][ T5314] [ 68.131210][ T5314] but task is already holding lock: [ 68.134352][ T5314] ffff888052b8e988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 68.139062][ T5314] [ 68.139062][ T5314] other info that might help us debug this: [ 68.142456][ T5314] Possible unsafe locking scenario: [ 68.142456][ T5314] [ 68.145825][ T5314] CPU0 [ 68.147261][ T5314] ---- [ 68.148720][ T5314] lock(&HFSPLUS_I(inode)->extents_lock); [ 68.151205][ T5314] lock(&HFSPLUS_I(inode)->extents_lock); [ 68.153559][ T5314] [ 68.153559][ T5314] *** DEADLOCK *** [ 68.153559][ T5314] [ 68.156931][ T5314] May be due to missing lock nesting notation [ 68.156931][ T5314] [ 68.160770][ T5314] 3 locks held by syz.0.0/5314: [ 68.162790][ T5314] #0: ffff888052b8eb78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: generic_file_write_iter+0xe3/0x540 [ 68.167426][ T5314] #1: ffff888052b8e988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 68.172160][ T5314] #2: ffff88804331e0b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0 [ 68.176359][ T5314] [ 68.176359][ T5314] stack backtrace: [ 68.178830][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-01599-gddddf9d64f73 #0 PREEMPT(full) [ 68.178845][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.178853][ T5314] Call Trace: [ 68.178860][ T5314] [ 68.178867][ T5314] dump_stack_lvl+0x189/0x250 [ 68.178889][ T5314] ? __pfx_dump_stack_lvl+0x10/0x10 [ 68.178905][ T5314] ? __pfx__printk+0x10/0x10 [ 68.178915][ T5314] ? print_lock_name+0xde/0x100 [ 68.178925][ T5314] print_deadlock_bug+0x28b/0x2a0 [ 68.178938][ T5314] validate_chain+0x1a3f/0x2140 [ 68.178952][ T5314] ? check_path+0x21/0x40 [ 68.178963][ T5314] ? check_noncircular+0xe0/0x160 [ 68.178975][ T5314] ? look_up_lock_class+0x74/0x170 [ 68.179034][ T5314] ? register_lock_class+0x51/0x320 [ 68.179046][ T5314] __lock_acquire+0xab9/0xd20 [ 68.179060][ T5314] ? hfsplus_file_extend+0x1fc/0x1990 [ 68.179073][ T5314] lock_acquire+0x120/0x360 [ 68.179083][ T5314] ? hfsplus_file_extend+0x1fc/0x1990 [ 68.179097][ T5314] __mutex_lock+0x182/0xe80 [ 68.179107][ T5314] ? hfsplus_file_extend+0x1fc/0x1990 [ 68.179120][ T5314] ? check_path+0x21/0x40 [ 68.179131][ T5314] ? check_noncircular+0xe0/0x160 [ 68.179144][ T5314] ? hfsplus_file_extend+0x1fc/0x1990 [ 68.179156][ T5314] ? __pfx___mutex_lock+0x10/0x10 [ 68.179169][ T5314] hfsplus_file_extend+0x1fc/0x1990 [ 68.179183][ T5314] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 68.179195][ T5314] ? __mutex_trylock_common+0x153/0x260 [ 68.179208][ T5314] ? __pfx___mutex_trylock_common+0x10/0x10 [ 68.179221][ T5314] ? rcu_is_watching+0x15/0xb0 [ 68.179234][ T5314] ? trace_contention_end+0x39/0x120 [ 68.179247][ T5314] ? __mutex_lock+0x330/0xe80 [ 68.179256][ T5314] ? hfsplus_brec_find+0x191/0x500 [ 68.179266][ T5314] hfsplus_bmap_reserve+0x122/0x500 [ 68.179282][ T5314] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 68.179296][ T5314] __hfsplus_ext_cache_extent+0x89/0xe30 [ 68.179309][ T5314] hfsplus_file_extend+0x444/0x1990 [ 68.179322][ T5314] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 68.179336][ T5314] ? clean_bdev_aliases+0x5c9/0x6b0 [ 68.179349][ T5314] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 68.179362][ T5314] hfsplus_get_block+0x411/0x1530 [ 68.179376][ T5314] ? __pfx_hfsplus_get_block+0x10/0x10 [ 68.179388][ T5314] ? do_raw_spin_unlock+0x4d/0x240 [ 68.179401][ T5314] ? _raw_spin_unlock+0x28/0x50 [ 68.179416][ T5314] __block_write_begin_int+0x6b5/0x1900 [ 68.179431][ T5314] ? folio_add_lru+0x1b3/0x3d0 [ 68.179444][ T5314] ? __pfx_hfsplus_get_block+0x10/0x10 [ 68.179457][ T5314] ? __pfx___block_write_begin_int+0x10/0x10 [ 68.179472][ T5314] cont_write_begin+0x789/0xb50 [ 68.179488][ T5314] ? __pfx_cont_write_begin+0x10/0x10 [ 68.179501][ T5314] ? __pfx___might_resched+0x10/0x10 [ 68.179513][ T5314] ? folio_unlock+0x101/0x160 [ 68.179526][ T5314] hfsplus_write_begin+0x66/0xb0 [ 68.179536][ T5314] ? __pfx_hfsplus_get_block+0x10/0x10 [ 68.179545][ T5314] generic_perform_write+0x2c7/0x910 [ 68.179561][ T5314] ? __pfx_generic_perform_write+0x10/0x10 [ 68.179574][ T5314] ? file_update_time+0x2da/0x490 [ 68.179588][ T5314] ? __generic_file_write_iter+0xf9/0x230 [ 68.179602][ T5314] ? generic_file_write_iter+0xfb/0x540 [ 68.179616][ T5314] generic_file_write_iter+0x10f/0x540 [ 68.179628][ T5314] ? aa_file_perm+0x11f/0xed0 [ 68.179647][ T5314] ? __pfx_generic_file_write_iter+0x10/0x10 [ 68.179666][ T5314] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 68.179681][ T5314] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 68.179699][ T5314] ? __lock_acquire+0xab9/0xd20 [ 68.179713][ T5314] ? aio_write+0x4c4/0x7a0 [ 68.179724][ T5314] aio_write+0x535/0x7a0 [ 68.179735][ T5314] ? __pfx_aio_write+0x10/0x10 [ 68.179749][ T5314] ? __might_fault+0xb0/0x130 [ 68.179762][ T5314] io_submit_one+0x70a/0x1240 [ 68.179776][ T5314] ? __lock_acquire+0xab9/0xd20 [ 68.179787][ T5314] ? __pfx_io_submit_one+0x10/0x10 [ 68.179797][ T5314] ? __might_fault+0xb0/0x130 [ 68.179809][ T5314] ? __might_fault+0xb0/0x130 [ 68.179818][ T5314] __se_sys_io_submit+0x185/0x2f0 [ 68.179830][ T5314] ? __pfx___se_sys_io_submit+0x10/0x10 [ 68.179841][ T5314] ? do_syscall_64+0xba/0x210 [ 68.179852][ T5314] do_syscall_64+0xf6/0x210 [ 68.179864][ T5314] ? clear_bhb_loop+0x60/0xb0 [ 68.179874][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.179884][ T5314] RIP: 0033:0x7f2b1a98e969 [ 68.179894][ T5314] 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 [ 68.179903][ T5314] RSP: 002b:00007f2b1b7d0038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 68.179916][ T5314] RAX: ffffffffffffffda RBX: 00007f2b1abb5fa0 RCX: 00007f2b1a98e969 [ 68.179925][ T5314] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007f2b1b786000 [ 68.179932][ T5314] RBP: 00007f2b1aa10ab1 R08: 0000000000000000 R09: 0000000000000000 [ 68.179939][ T5314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 68.179945][ T5314] R13: 0000000000000000 R14: 00007f2b1abb5fa0 R15: 00007ffe1f8cb8d8 [ 68.179955][ T5314]