program: r0 = socket$tipc(0x1e, 0x5, 0x0) setsockopt$sock_int(r0, 0x10f, 0x0, 0x0, 0x0) 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==") r1 = creat(&(0x7f0000000100)='./file1\x00', 0x20) io_setup(0x202, &(0x7f0000000200)=0x0) io_submit(r2, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r1, &(0x7f0000000000), 0x70000}]) [ 75.085458][ T5307] Bluetooth: hci0: command tx timeout [ 75.178744][ T5322] loop0: detected capacity change from 0 to 1024 [ 75.248130][ T5322] [ 75.249326][ T5322] ============================================ [ 75.252102][ T5322] WARNING: possible recursive locking detected [ 75.254778][ T5322] 6.15.0-syzkaller-11796-g5abc7438f1e9 #0 Not tainted [ 75.257709][ T5322] -------------------------------------------- [ 75.260449][ T5322] syz.0.0/5322 is trying to acquire lock: [ 75.262961][ T5322] ffff888052ea8108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 75.267792][ T5322] [ 75.267792][ T5322] but task is already holding lock: [ 75.271025][ T5322] ffff888052eaa988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 75.275784][ T5322] [ 75.275784][ T5322] other info that might help us debug this: [ 75.279254][ T5322] Possible unsafe locking scenario: [ 75.279254][ T5322] [ 75.282549][ T5322] CPU0 [ 75.284062][ T5322] ---- [ 75.285577][ T5322] lock(&HFSPLUS_I(inode)->extents_lock); [ 75.288232][ T5322] lock(&HFSPLUS_I(inode)->extents_lock); [ 75.290795][ T5322] [ 75.290795][ T5322] *** DEADLOCK *** [ 75.290795][ T5322] [ 75.294221][ T5322] May be due to missing lock nesting notation [ 75.294221][ T5322] [ 75.297821][ T5322] 3 locks held by syz.0.0/5322: [ 75.299972][ T5322] #0: ffff888052eaab78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: generic_file_write_iter+0xe3/0x540 [ 75.304860][ T5322] #1: ffff888052eaa988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 75.309863][ T5322] #2: ffff8880334740b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0 [ 75.314296][ T5322] [ 75.314296][ T5322] stack backtrace: [ 75.316647][ T5322] CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-11796-g5abc7438f1e9 #0 PREEMPT(full) [ 75.316663][ T5322] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.316670][ T5322] Call Trace: [ 75.316675][ T5322] [ 75.316680][ T5322] dump_stack_lvl+0x189/0x250 [ 75.316694][ T5322] ? __pfx_dump_stack_lvl+0x10/0x10 [ 75.316705][ T5322] ? __pfx__printk+0x10/0x10 [ 75.316714][ T5322] ? print_lock_name+0xde/0x100 [ 75.316722][ T5322] print_deadlock_bug+0x28b/0x2a0 [ 75.316730][ T5322] validate_chain+0x1a3f/0x2140 [ 75.316738][ T5322] ? check_path+0x21/0x40 [ 75.316746][ T5322] ? check_noncircular+0xe0/0x160 [ 75.316756][ T5322] ? look_up_lock_class+0x74/0x170 [ 75.316814][ T5322] ? register_lock_class+0x51/0x320 [ 75.316831][ T5322] __lock_acquire+0xab9/0xd20 [ 75.316847][ T5322] ? hfsplus_file_extend+0x1fc/0x1990 [ 75.316861][ T5322] lock_acquire+0x120/0x360 [ 75.316875][ T5322] ? hfsplus_file_extend+0x1fc/0x1990 [ 75.316891][ T5322] __mutex_lock+0x182/0xe80 [ 75.316907][ T5322] ? hfsplus_file_extend+0x1fc/0x1990 [ 75.316921][ T5322] ? check_path+0x21/0x40 [ 75.316928][ T5322] ? check_noncircular+0xe0/0x160 [ 75.316935][ T5322] ? hfsplus_file_extend+0x1fc/0x1990 [ 75.316943][ T5322] ? __pfx___mutex_lock+0x10/0x10 [ 75.316983][ T5322] hfsplus_file_extend+0x1fc/0x1990 [ 75.317001][ T5322] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 75.317012][ T5322] ? __mutex_trylock_common+0x153/0x260 [ 75.317025][ T5322] ? __pfx___mutex_trylock_common+0x10/0x10 [ 75.317037][ T5322] ? rcu_is_watching+0x15/0xb0 [ 75.317047][ T5322] ? trace_contention_end+0x39/0x120 [ 75.317059][ T5322] ? __mutex_lock+0x330/0xe80 [ 75.317075][ T5322] ? hfsplus_brec_find+0x191/0x500 [ 75.317088][ T5322] hfsplus_bmap_reserve+0x122/0x500 [ 75.317105][ T5322] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 75.317121][ T5322] __hfsplus_ext_cache_extent+0x89/0xe30 [ 75.317136][ T5322] hfsplus_file_extend+0x444/0x1990 [ 75.317150][ T5322] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 75.317165][ T5322] ? clean_bdev_aliases+0x5c9/0x6b0 [ 75.317181][ T5322] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 75.317196][ T5322] hfsplus_get_block+0x411/0x1530 [ 75.317210][ T5322] ? __pfx_hfsplus_get_block+0x10/0x10 [ 75.317221][ T5322] ? do_raw_spin_unlock+0x4d/0x240 [ 75.317233][ T5322] ? _raw_spin_unlock+0x28/0x50 [ 75.317247][ T5322] __block_write_begin_int+0x6b5/0x1900 [ 75.317264][ T5322] ? folio_add_lru+0x1b2/0x3d0 [ 75.317278][ T5322] ? __pfx_hfsplus_get_block+0x10/0x10 [ 75.317292][ T5322] ? __pfx___block_write_begin_int+0x10/0x10 [ 75.317307][ T5322] cont_write_begin+0x789/0xb50 [ 75.317318][ T5322] ? __pfx_cont_write_begin+0x10/0x10 [ 75.317340][ T5322] ? __pfx___might_resched+0x10/0x10 [ 75.317350][ T5322] ? folio_unlock+0x101/0x160 [ 75.317364][ T5322] hfsplus_write_begin+0x66/0xb0 [ 75.317377][ T5322] ? __pfx_hfsplus_get_block+0x10/0x10 [ 75.317391][ T5322] generic_perform_write+0x2c7/0x910 [ 75.317408][ T5322] ? __pfx_generic_perform_write+0x10/0x10 [ 75.317417][ T5322] ? file_update_time+0x2da/0x490 [ 75.317433][ T5322] ? __generic_file_write_iter+0xf9/0x230 [ 75.317446][ T5322] ? generic_file_write_iter+0xfb/0x540 [ 75.317461][ T5322] generic_file_write_iter+0x10f/0x540 [ 75.317475][ T5322] ? aa_file_perm+0x11f/0xed0 [ 75.317486][ T5322] ? __pfx_generic_file_write_iter+0x10/0x10 [ 75.317505][ T5322] ? __lock_acquire+0xab9/0xd20 [ 75.317521][ T5322] ? aio_write+0x4c4/0x7a0 [ 75.317534][ T5322] aio_write+0x535/0x7a0 [ 75.317546][ T5322] ? __pfx_aio_write+0x10/0x10 [ 75.317560][ T5322] ? __might_fault+0xb0/0x130 [ 75.317574][ T5322] io_submit_one+0x78b/0x1310 [ 75.317591][ T5322] ? __pfx_io_submit_one+0x10/0x10 [ 75.317603][ T5322] ? __might_fault+0xb0/0x130 [ 75.317615][ T5322] ? __might_fault+0xb0/0x130 [ 75.317626][ T5322] __se_sys_io_submit+0x185/0x2f0 [ 75.317636][ T5322] ? __pfx___se_sys_io_submit+0x10/0x10 [ 75.317649][ T5322] ? do_syscall_64+0xbe/0x3b0 [ 75.317666][ T5322] do_syscall_64+0xfa/0x3b0 [ 75.317682][ T5322] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.317696][ T5322] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.317705][ T5322] ? clear_bhb_loop+0x60/0xb0 [ 75.317713][ T5322] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.317721][ T5322] RIP: 0033:0x7faae4d8e969 [ 75.317729][ 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 [ 75.317736][ T5322] RSP: 002b:00007faae5c6e038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 75.317745][ T5322] RAX: ffffffffffffffda RBX: 00007faae4fb5fa0 RCX: 00007faae4d8e969 [ 75.317753][ T5322] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007faae5c24000 [ 75.317760][ T5322] RBP: 00007faae4e10ab1 R08: 0000000000000000 R09: 0000000000000000 [ 75.317767][ T5322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.317773][ T5322] R13: 0000000000000000 R14: 00007faae4fb5fa0 R15: 00007fff08bd3088 [ 75.317785][ T5322]