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 = syz_open_dev$dri(&(0x7f00000000c0), 0x1ff, 0x0) ioctl$DRM_IOCTL_MODE_GETRESOURCES(r0, 0xc04064a0, &(0x7f00000003c0)={0x0, &(0x7f0000000300)=[0x0], &(0x7f0000000340)=[0x0], 0x0, 0x0, 0x1, 0x1}) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(r0, 0xc01864c6, &(0x7f0000000040)={&(0x7f0000000640)=[r2, r1], 0x2}) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000400)={0x1, &(0x7f0000000380)=[{0x6, 0x0, 0x0, 0x7ffffffd}]}) r5 = dup2(r3, r4) close_range(r5, 0xffffffffffffffff, 0x0) r6 = openat$cdrom(0xffffffffffffff9c, &(0x7f0000000040), 0x4080, 0x0) ioctl$CDROM_SET_OPTIONS(r6, 0x5320, 0xe) syz_open_procfs(0x0, &(0x7f0000000100)='fd/3\x00') r7 = creat(&(0x7f0000000000)='./file1\x00', 0x0) io_setup(0x202, &(0x7f0000000200)=0x0) io_submit(r8, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r7, &(0x7f0000000000), 0x70000}]) [ 74.330715][ T4677] Bluetooth: hci0: command tx timeout [ 74.428896][ T5328] loop0: detected capacity change from 0 to 1024 [ 74.566924][ T5328] [ 74.568296][ T5328] ============================================ [ 74.571694][ T5328] WARNING: possible recursive locking detected [ 74.574251][ T5328] 6.15.0-syzkaller-13743-g8630c59e9936 #0 Not tainted [ 74.577345][ T5328] -------------------------------------------- [ 74.580158][ T5328] syz.0.0/5328 is trying to acquire lock: [ 74.582767][ T5328] ffff888053444108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.590390][ T5328] [ 74.590390][ T5328] but task is already holding lock: [ 74.593509][ T5328] ffff888053446988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.598200][ T5328] [ 74.598200][ T5328] other info that might help us debug this: [ 74.601680][ T5328] Possible unsafe locking scenario: [ 74.601680][ T5328] [ 74.604906][ T5328] CPU0 [ 74.607087][ T5328] ---- [ 74.609789][ T5328] lock(&HFSPLUS_I(inode)->extents_lock); [ 74.612894][ T5328] lock(&HFSPLUS_I(inode)->extents_lock); [ 74.616043][ T5328] [ 74.616043][ T5328] *** DEADLOCK *** [ 74.616043][ T5328] [ 74.619724][ T5328] May be due to missing lock nesting notation [ 74.619724][ T5328] [ 74.623717][ T5328] 3 locks held by syz.0.0/5328: [ 74.626237][ T5328] #0: ffff888053446b78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: generic_file_write_iter+0xe3/0x540 [ 74.631609][ T5328] #1: ffff888053446988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.636338][ T5328] #2: ffff8880418740b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0 [ 74.641701][ T5328] [ 74.641701][ T5328] stack backtrace: [ 74.644463][ T5328] CPU: 0 UID: 0 PID: 5328 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-13743-g8630c59e9936 #0 PREEMPT(full) [ 74.644476][ T5328] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.644482][ T5328] Call Trace: [ 74.644488][ T5328] [ 74.644493][ T5328] dump_stack_lvl+0x189/0x250 [ 74.644517][ T5328] ? __pfx_dump_stack_lvl+0x10/0x10 [ 74.644532][ T5328] ? __pfx__printk+0x10/0x10 [ 74.644547][ T5328] ? print_lock_name+0xde/0x100 [ 74.644562][ T5328] print_deadlock_bug+0x28b/0x2a0 [ 74.644575][ T5328] validate_chain+0x1a3f/0x2140 [ 74.644588][ T5328] ? check_path+0x21/0x40 [ 74.644595][ T5328] ? check_noncircular+0xe0/0x160 [ 74.644604][ T5328] ? look_up_lock_class+0x74/0x170 [ 74.645476][ T5328] ? register_lock_class+0x51/0x320 [ 74.645488][ T5328] __lock_acquire+0xab9/0xd20 [ 74.645501][ T5328] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.645512][ T5328] lock_acquire+0x120/0x360 [ 74.645522][ T5328] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.645533][ T5328] __mutex_lock+0x182/0xe80 [ 74.645541][ T5328] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.645550][ T5328] ? check_path+0x21/0x40 [ 74.645556][ T5328] ? check_noncircular+0xe0/0x160 [ 74.645562][ T5328] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.645571][ T5328] ? __pfx___mutex_lock+0x10/0x10 [ 74.645580][ T5328] hfsplus_file_extend+0x1fc/0x1990 [ 74.645590][ T5328] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 74.645616][ T5328] ? __mutex_trylock_common+0x153/0x260 [ 74.645628][ T5328] ? __pfx___mutex_trylock_common+0x10/0x10 [ 74.645640][ T5328] ? rcu_is_watching+0x15/0xb0 [ 74.645649][ T5328] ? trace_contention_end+0x39/0x120 [ 74.645660][ T5328] ? __mutex_lock+0x330/0xe80 [ 74.645670][ T5328] ? hfsplus_brec_find+0x191/0x500 [ 74.645681][ T5328] hfsplus_bmap_reserve+0x122/0x500 [ 74.645694][ T5328] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 74.645703][ T5328] __hfsplus_ext_cache_extent+0x89/0xe30 [ 74.645713][ T5328] hfsplus_file_extend+0x444/0x1990 [ 74.645723][ T5328] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 74.645732][ T5328] ? clean_bdev_aliases+0x5c9/0x6b0 [ 74.645744][ T5328] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 74.645757][ T5328] hfsplus_get_block+0x411/0x1530 [ 74.645772][ T5328] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.645785][ T5328] ? do_raw_spin_unlock+0x4d/0x240 [ 74.645797][ T5328] ? _raw_spin_unlock+0x28/0x50 [ 74.645813][ T5328] __block_write_begin_int+0x6b5/0x1900 [ 74.645830][ T5328] ? folio_add_lru+0x1b2/0x3d0 [ 74.645845][ T5328] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.645859][ T5328] ? __pfx___block_write_begin_int+0x10/0x10 [ 74.645872][ T5328] cont_write_begin+0x789/0xb50 [ 74.645883][ T5328] ? __pfx_cont_write_begin+0x10/0x10 [ 74.645891][ T5328] ? __pfx___might_resched+0x10/0x10 [ 74.645898][ T5328] ? folio_unlock+0x101/0x160 [ 74.645907][ T5328] hfsplus_write_begin+0x66/0xb0 [ 74.645914][ T5328] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.645923][ T5328] generic_perform_write+0x2c7/0x910 [ 74.645934][ T5328] ? __pfx_generic_perform_write+0x10/0x10 [ 74.645944][ T5328] ? file_update_time+0x2da/0x490 [ 74.645955][ T5328] ? __generic_file_write_iter+0xf9/0x230 [ 74.645965][ T5328] ? generic_file_write_iter+0xfb/0x540 [ 74.645974][ T5328] generic_file_write_iter+0x10f/0x540 [ 74.645986][ T5328] ? aa_file_perm+0x11f/0xed0 [ 74.646001][ T5328] ? __pfx_generic_file_write_iter+0x10/0x10 [ 74.646021][ T5328] ? __lock_acquire+0xab9/0xd20 [ 74.646041][ T5328] ? aio_write+0x4c4/0x7a0 [ 74.646059][ T5328] aio_write+0x535/0x7a0 [ 74.646073][ T5328] ? __pfx_aio_write+0x10/0x10 [ 74.646084][ T5328] ? __might_fault+0xb0/0x130 [ 74.646094][ T5328] io_submit_one+0x78b/0x1310 [ 74.646106][ T5328] ? __pfx_io_submit_one+0x10/0x10 [ 74.646114][ T5328] ? __might_fault+0xb0/0x130 [ 74.646131][ T5328] ? __might_fault+0xb0/0x130 [ 74.646137][ T5328] __se_sys_io_submit+0x185/0x2f0 [ 74.646145][ T5328] ? __pfx___se_sys_io_submit+0x10/0x10 [ 74.646153][ T5328] ? __secure_computing+0xe2/0x2a0 [ 74.646162][ T5328] do_syscall_64+0xfa/0x3b0 [ 74.646171][ T5328] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.646185][ T5328] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.646195][ T5328] ? clear_bhb_loop+0x60/0xb0 [ 74.646207][ T5328] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.646218][ T5328] RIP: 0033:0x7f031718e929 [ 74.646232][ T5328] 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 [ 74.646244][ T5328] RSP: 002b:00007f031805b038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 74.646259][ T5328] RAX: ffffffffffffffda RBX: 00007f03173b5fa0 RCX: 00007f031718e929 [ 74.646268][ T5328] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007f0318011000 [ 74.646276][ T5328] RBP: 00007f0317210b39 R08: 0000000000000000 R09: 0000000000000000 [ 74.646283][ T5328] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.646289][ T5328] R13: 0000000000000000 R14: 00007f03173b5fa0 R15: 00007ffc18b141b8 [ 74.646300][ T5328] [ 74.876599][ C0] vkms_vblank_simulate: vblank timer overrun