program: syz_mount_image$udf(&(0x7f0000000180), &(0x7f0000000100)='./bus\x00', 0x1014494, &(0x7f00000002c0)={[{@iocharset={'iocharset', 0x3d, 'iso8859-4'}}, {@partition={'partition', 0x3d, 0x6}}, {@gid_forget}, {@session={'session', 0x3d, 0xfe8}}, {@noadinicb}, {@anchor}, {@uid_forget}]}, 0xfe, 0xc24, &(0x7f0000001480)="$eJzs3UFsHNd9B+D/Gy5Fym4rJk5Uu42LTVukMmO5sqSYilW4q5pmG0CWiVDMLQBX5EpdmFoSJNXIRtrQvfTQQ4Ci6CEnAq1RIEUDoymCHtnWBZKLD0VOPREtbARFD2wRIKeAxcy+lZY0ZcmmSFH299nUbznz3ux7b5YzkqA3LwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAiN976cKpZ9ODbgUAcJAuTX311Gn3fwD4RLnsz/8AAAAAAAAAAAAAAHDYpSjisUixeGkzzVTfdw1fbHdu3Jwen9i92tFU1Ryoypdfw8+ePnP2S8+NnevlB9e/356IV6YuX6i/uHB9cam1vNyaq0932rMLc617PsJe6+80Wg1A/fqrN+auXl2un37mzLbdN0feG3r0+Mj5sadOPtkrOz0+MTHVV6Y2+JHf/X3uNMPjSBRxMlI8/b2fpGZEFLH3sbjLZ2e/Ha06MVp1Ynp8ourIfLvZWSl3TvYGooio91Vq9MboAM7FnjQiVsvmlw0eLbs3tdhcal6Zb9Unm0sr7ZX2QmcydVtb9qceRZxLEWsRsTH0/sMNRhG1SPGdY5vpSkQM9Mbhi9XE4Du3o9jHPt6Dsp31wYi14iE4Z4fYUBTxcqT46dtFzJZjlr/iCxEvl/mDiDfLfCEilR+MsxHv7vI54uFUiyL+vDz/5zfTXHU96F1XLn6t/pXO1YW+sr3rykN/fzhIh/zaNBxFNKsr/mb66L/ZAQAAAAAAAAAAAAAAAOB+OxpFPBEpXvr3P6rmFUc1L/3Y+bHfH/nF/jnjj9/lOGXZZyJitbi3OblH8hTiyTSZ0gOeS/xJNhxF/HGe//fGg24MAAAAAAAAAAAAAAAAAADAJ9yPI8Xz75xIa9G/pni7c61+uXllvrsqbG/t396a6VtbW1v11M1GzpmcqznXcq7n3MgZRa6fs5FzJudqzrWc6zk3csZArp+zkXMm52rOtZzrOTdyRi3Xz9nIOZNzNedazvWcGznjkKzdCwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADwcVJEET+PFN/+xmaKFBGNiJno5vpQrwwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA8CANpSK+Hynqf9C4ta0WEan6v+tE+cvZaBwp89PRGCvzhWhcyNmsstZ44wG0n70ZTEX8KFIMDb9164Tn8z/Y/e7WxyDe/Obt736l1s2B3s6R94YePX7s/NjErz1+p9dptwaMXmx3btysT49PTEz1ba7ld/9037aR/L7F/ek6EbH82uuvNufnW0ufmBdFHIpmPKgXte6LWhyS9hzUi3y9il12FYfhp6BxWAaq9+IBX5g4EOX9/91I8dvv/Efvht+7//9C97tbd/j42Z/cvv8/v/NA+3T/f6xv2/P5dyODtYjhleuLg8cjhpdfe/1k+3rzWutaq3P21Kkvj419+cypwSMRw1fb862+V3seKgAAAAAAAAAAAAAAAICDlYr43UjR/NFmqkfEzWq+1sj5sadOPjkQA9V8q23ztl6Zunyh/uLC9cWl1vJya64+3WnPLsy17vXthqvpXtPjE/vSmbs6us/tPzr84sLia0vta3+4suv+R4YvXFleWWrO7r47jkYR0ejfMlo1eHp8omr0fLvZqapO7jqZ7sMbTEX8Z6SYPVs/0tuW5//tnOG/bf7/6s4D7dP8v0/1bSvfM6UifhYpfusvHo/PV+18JN43Zrnc30SK0XOfy+XiSFmu14bucwW6MwPLsv8bKf7h59vL9uZDPna77LP3Oq4Pi/L8H4sU3/+z78av523bn/+w+/l/ZOeB9un8f6Zv2yPbnlew566Tz//JSPHCY2/Fb+RtH/T8jyK2tra+FXEiF771fI59Ov+f7ds2Et33/c37130AAAAAAAAAAICH1mAq4m8jxZMTtfRc3nYv//5vbueB9unff/1y37a5A1qvaM+DCgAAAACHxGAq4seR4trKW7fmUG+f/903//N3bq+9Pp527K3+nu+XqucG3M+//+s3kt93Zu/dBgAAAAAAAAAAAAAAAAAAgEMlpSKey+upz9xlPfX1SPHSfz+dy6XjZbneOvAj1a/DlxY6Jy/Mzy/MNleaV+Zb9anF5myrrPuZSLH515/LdYtqffXP57rdNd6Ht3prsS9Fiom/65XtrsXeW5u8ux54dy32suynIsV//f32sr11rD97u+zpsuxfRYqv/9PuZY/fLnumLPvdSPHDr9d7ZR8py/aej9p9JulwLeZbz8wuzL/vUagAAAAAAAAAAAAAAAAAAADwYQ2mIv40UvzP9bVYrab9v3FrV85ab8Ob3+xb73+Hm9U6/yPV+v93ev1R1v8fuS+9BAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAh0uKIl6PFIuXNtP6UPl91/DFdufGzenxid2rHU1VzYGqfPk1/OzpM2e/9NzYuV5+cP377Yl4ZeryhfqLC9cXl1rLy625+nSnPbsw17rnI+y1/u2h6xqtBqB+/dUbc1evLtdPP3Nm2+6bI+8NPXp85PzYUyef7JWdHp+YmOorUxv8EO/+oRp325Eo4i8jxdPf+0n656GIIvY+Fnf57Oy3o1UnRqtOTI9PVB2Zbzc7K+XOyd5AFBH1vkqN3hgdwLnYk0bEatn8ssGjZfemFptLzSvzrfpkc2mlvdJe6EymbmvL/tSjiHMpYi0iNob6D3QkZxGvRorvHNtM/zIUMdAbhy9emvrqqdN3bkexr728i29V7awPRqwVD8E5O8SGooh/jBQ/fftE/OtQRC26X/GFiJfL/EHEm2W+EJHKD8bZiHeHHnSruV9qUcT/lef//GZ6eyii+pGprisXv1b/SufqQl/Z3nVl5/1hKyIeqvvDQTrk16bhKOKH1RV/M/2bn2sAAAAAAAAAAAAAAACAQ6SIX40Uz79zIlXzg2/NKW53rtUvN6/Md6f19eb+9eZMb21tbdVTNxs5Z3Ku5lzLuZ5zI2cUuX7ORs6ZnKs513Ku59zIGQO5fs5GzpmcqznXcq7n3MgZtVw/ZyPnTM7VnGs513Nu5IxDMncPAAAAAAAAAAAAAAAAAAD4eCmq/1J8+xubaWuou770THRz3XqgH3v/HwAA//9wn/vk") r0 = open(&(0x7f0000000240)='./file1\x00', 0x145142, 0x0) ftruncate(r0, 0x2007ffc) sendfile(r0, r0, 0x0, 0x800000009) r1 = open(&(0x7f0000000000)='./bus\x00', 0x60142, 0x0) r2 = open(&(0x7f0000000080)='./bus\x00', 0x107382, 0x1d0) ftruncate(r2, 0x2007ffb) sendfile(r1, r2, 0x0, 0x1000000201005) syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000380)=ANY=[@ANYBLOB="1201500200000040"], 0x0) open(&(0x7f0000000180)='./bus\x00', 0x14937e, 0x111) creat(&(0x7f00000001c0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0) [ 110.717243][ T5303] Bluetooth: hci0: command tx timeout qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0xdd000) [ 110.980301][ T5329] loop0: detected capacity change from 0 to 2048 [ 110.998610][ T5329] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=2362, location=2362 [ 111.008269][ T5329] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d [ 111.013477][ T5329] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 160: 0xd2 != 0xd4 [ 111.021836][ T1010] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 111.025990][ T1010] ata1: failed to read log page 10h (errno=-5) [ 111.028923][ T1010] ata1.00: exception Emask 0x1 SAct 0x40000000 SErr 0x0 action 0x0 [ 111.033138][ T1010] ata1.00: irq_stat 0x41000008 [ 111.038389][ T5329] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 111.045217][ T1010] ata1.00: failed command: WRITE FPDMA QUEUED [ 111.050097][ T1010] ata1.00: cmd 61/e8:f0:de:1d:08/06:00:00:00:00/40 tag 30 ncq dma 905216 out [ 111.050097][ T1010] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) [ 111.067039][ T24] audit: type=1800 audit(1775323715.563:2): pid=5329 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.0" name="file1" dev="loop0" ino=1346 res=0 errno=0 [ 111.079947][ T1010] ata1.00: status: { DRDY } [ 111.082077][ T1010] ata1.00: error: { ABRT } [ 111.091978][ T1010] ata1.00: configured for UDMA/100 [ 111.100022][ T1010] ata1: EH complete [ 111.444300][ T5321] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 111.637761][ T5329] [ 111.639098][ T5329] ============================================ [ 111.641857][ T5329] WARNING: possible recursive locking detected [ 111.644583][ T5329] syzkaller #0 Not tainted [ 111.646889][ T5329] -------------------------------------------- [ 111.650386][ T5329] syz.0.0/5329 is trying to acquire lock: [ 111.653038][ T5329] ffff88801f552d28 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_free_blocks+0xaaf/0x1940 [ 111.657287][ T5329] [ 111.657287][ T5329] but task is already holding lock: [ 111.660593][ T5329] ffff88801f552d28 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_new_block+0x104a/0x1c70 [ 111.664871][ T5329] [ 111.664871][ T5329] other info that might help us debug this: [ 111.669170][ T5329] Possible unsafe locking scenario: [ 111.669170][ T5329] [ 111.672793][ T5329] CPU0 [ 111.674290][ T5329] ---- [ 111.676003][ T5329] lock(&sbi->s_alloc_mutex); [ 111.678025][ T5329] lock(&sbi->s_alloc_mutex); [ 111.680349][ T5329] [ 111.680349][ T5329] *** DEADLOCK *** [ 111.680349][ T5329] [ 111.684253][ T5329] May be due to missing lock nesting notation [ 111.684253][ T5329] [ 111.688141][ T5329] 3 locks held by syz.0.0/5329: [ 111.690435][ T5329] #0: ffff88801ce5c420 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 111.694331][ T5329] #1: ffff8880489482a0 (&type->i_mutex_dir_key#8){+.+.}-{4:4}, at: path_openat+0xb4c/0x3860 [ 111.700022][ T5329] #2: ffff88801f552d28 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_new_block+0x104a/0x1c70 [ 111.704726][ T5329] [ 111.704726][ T5329] stack backtrace: [ 111.707233][ T5329] CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 111.707253][ T5329] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 111.707260][ T5329] Call Trace: [ 111.707266][ T5329] [ 111.707274][ T5329] dump_stack_lvl+0xe8/0x150 [ 111.707297][ T5329] print_deadlock_bug+0x279/0x290 [ 111.707319][ T5329] __lock_acquire+0x253f/0x2cf0 [ 111.707339][ T5329] ? kernel_text_address+0xa5/0xe0 [ 111.707355][ T5329] ? __lock_acquire+0x6b5/0x2cf0 [ 111.707371][ T5329] ? __lock_acquire+0x6b5/0x2cf0 [ 111.707388][ T5329] lock_acquire+0xf0/0x2e0 [ 111.707403][ T5329] ? udf_free_blocks+0xaaf/0x1940 [ 111.707420][ T5329] __mutex_lock+0x19f/0x1300 [ 111.707572][ T5329] ? udf_free_blocks+0xaaf/0x1940 [ 111.707580][ T5329] ? __lock_acquire+0x6b5/0x2cf0 [ 111.707593][ T5329] ? __lock_acquire+0x6b5/0x2cf0 [ 111.707602][ T5329] ? udf_free_blocks+0xaaf/0x1940 [ 111.707612][ T5329] ? __pfx___mutex_lock+0x10/0x10 [ 111.707621][ T5329] ? folio_mark_accessed+0x42e/0x8c0 [ 111.707634][ T5329] udf_free_blocks+0xaaf/0x1940 [ 111.707643][ T5329] ? bdev_getblk+0x582/0x6e0 [ 111.707651][ T5329] ? udf_get_fileshortad+0x6e/0x1b0 [ 111.707658][ T5329] ? udf_current_aext+0x698/0xb30 [ 111.707667][ T5329] ? __pfx_udf_free_blocks+0x10/0x10 [ 111.707674][ T5329] ? udf_next_aext+0x447/0x530 [ 111.707688][ T5329] udf_delete_aext+0x4fb/0xbd0 [ 111.707711][ T5329] ? __pfx_udf_delete_aext+0x10/0x10 [ 111.707723][ T5329] ? udf_next_aext+0x447/0x530 [ 111.707740][ T5329] udf_new_block+0x149e/0x1c70 [ 111.707761][ T5329] ? __pfx_udf_new_block+0x10/0x10 [ 111.707775][ T5329] ? rcu_is_watching+0x15/0xb0 [ 111.707790][ T5329] ? trace_kmalloc+0x2a/0x110 [ 111.707801][ T5329] ? __kmalloc_noprof+0x37d/0x760 [ 111.707812][ T5329] ? udf_new_inode+0x305/0xd10 [ 111.707822][ T5329] ? __kmalloc_noprof+0x1b8/0x760 [ 111.707833][ T5329] udf_new_inode+0x38f/0xd10 [ 111.707847][ T5329] ? __pfx_udf_new_inode+0x10/0x10 [ 111.707857][ T5329] ? inode_permission+0x346/0x5f0 [ 111.707867][ T5329] ? bpf_lsm_inode_permission+0x9/0x20 [ 111.707874][ T5329] ? security_inode_permission+0xb7/0x2e0 [ 111.707912][ T5329] ? __pfx_udf_create+0x10/0x10 [ 111.707922][ T5329] udf_create+0x23/0xf0 [ 111.707932][ T5329] ? __pfx_udf_create+0x10/0x10 [ 111.707944][ T5329] path_openat+0x1395/0x3860 [ 111.707959][ T5329] ? __pfx_path_openat+0x10/0x10 [ 111.707973][ T5329] ? __lock_acquire+0x6b5/0x2cf0 [ 111.707988][ T5329] do_file_open+0x23e/0x4a0 [ 111.707999][ T5329] ? __pfx_do_file_open+0x10/0x10 [ 111.708014][ T5329] ? _raw_spin_unlock+0x28/0x50 [ 111.708026][ T5329] ? alloc_fd+0x64b/0x6c0 [ 111.708043][ T5329] do_sys_openat2+0x113/0x200 [ 111.708057][ T5329] ? __se_sys_futex+0x3a8/0x450 [ 111.708070][ T5329] ? __pfx_do_sys_openat2+0x10/0x10 [ 111.708088][ T5329] ? rcu_is_watching+0x15/0xb0 [ 111.708108][ T5329] __x64_sys_creat+0x8f/0xc0 [ 111.708126][ T5329] do_syscall_64+0x14d/0xf80 [ 111.708142][ T5329] ? trace_irq_disable+0x3b/0x150 [ 111.708152][ T5329] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 111.708163][ T5329] ? clear_bhb_loop+0x40/0x90 [ 111.708176][ T5329] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 111.708189][ T5329] RIP: 0033:0x7f54ddb9c819 [ 111.708204][ T5329] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 111.708216][ T5329] RSP: 002b:00007f54dea5efe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 111.708231][ T5329] RAX: ffffffffffffffda RBX: 00007f54dde15fa0 RCX: 00007f54ddb9c819 [ 111.708240][ T5329] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000001c0 [ 111.708246][ T5329] RBP: 00007f54ddc32c91 R08: 0000000000000000 R09: 0000000000000000 [ 111.708250][ T5329] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 111.708254][ T5329] R13: 00007f54dde16038 R14: 00007f54dde15fa0 R15: 00007fffcd663268 [ 111.708262][ T5329] [ 112.727180][ T5303] Bluetooth: hci0: command tx timeout [ 114.808135][ T5303] Bluetooth: hci0: command tx timeout [ 116.646347][ T5321] usb 5-1: unable to get BOS descriptor or descriptor too short [ 116.650269][ T5321] usb 5-1: no configurations [ 116.652317][ T5321] usb 5-1: can't read configurations, error -22 [ 116.784241][ T5321] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 116.914134][ T5321] usb 5-1: device descriptor read/64, error -32 [ 117.034317][ T5321] usb usb5-port1: attempt power cycle [ 117.374252][ T5321] usb 5-1: new high-speed USB device number 4 using dummy_hcd [ 117.394712][ T5321] usb 5-1: device descriptor read/8, error -32 [ 117.634142][ T5321] usb 5-1: new high-speed USB device number 5 using dummy_hcd [ 117.654573][ T5321] usb 5-1: device descriptor read/8, error -32