program: syz_mount_image$udf(&(0x7f0000000180), &(0x7f0000000100)='./bus\x00', 0x1014494, &(0x7f0000000600)=ANY=[@ANYBLOB="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"], 0xfe, 0xc24, &(0x7f0000001480)="$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) r3 = open(&(0x7f0000000180)='./bus\x00', 0x14937e, 0x111) pwrite64(r3, &(0x7f00000020c0)="2dfac14f76b2", 0x6, 0x8) renameat2(0xffffffffffffff9c, &(0x7f0000000580)='./file1\x00', 0xffffffffffffff9c, &(0x7f00000005c0)='./file7\x00', 0x0) creat(&(0x7f0000000040)='./bus\x00', 0x122dfb579e447c7a) open(&(0x7f0000000240)='./file1\x00', 0x145142, 0x0) [ 68.661738][ T5297] Bluetooth: hci0: command tx timeout [ 68.756139][ T5317] loop0: detected capacity change from 0 to 2048 [ 68.793227][ T5317] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=2362, location=2362 [ 68.825415][ T5317] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d [ 68.832552][ T5317] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 160: 0xd2 != 0xd4 [ 68.855585][ T5317] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 68.899119][ T25] audit: type=1800 audit(1762329955.224:2): pid=5317 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 [ 69.301511][ T55] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 69.652276][ T5317] [ 69.653518][ T5317] ============================================ [ 69.656304][ T5317] WARNING: possible recursive locking detected [ 69.658934][ T5317] syzkaller #0 Not tainted [ 69.660946][ T5317] -------------------------------------------- [ 69.663654][ T5317] syz.0.0/5317 is trying to acquire lock: [ 69.666248][ T5317] ffff888011498928 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_free_blocks+0x9e2/0x17f0 [ 69.670982][ T5317] [ 69.670982][ T5317] but task is already holding lock: [ 69.674394][ T5317] ffff888011498928 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_prealloc_blocks+0x8d0/0x10b0 [ 69.679058][ T5317] [ 69.679058][ T5317] other info that might help us debug this: [ 69.682616][ T5317] Possible unsafe locking scenario: [ 69.682616][ T5317] [ 69.685911][ T5317] CPU0 [ 69.687298][ T5317] ---- [ 69.688854][ T5317] lock(&sbi->s_alloc_mutex); [ 69.690930][ T5317] lock(&sbi->s_alloc_mutex); [ 69.692897][ T5317] [ 69.692897][ T5317] *** DEADLOCK *** [ 69.692897][ T5317] [ 69.696276][ T5317] May be due to missing lock nesting notation [ 69.696276][ T5317] [ 69.699578][ T5317] 4 locks held by syz.0.0/5317: [ 69.701780][ T5317] #0: ffff888000dda420 (sb_writers#12){.+.+}-{0:0}, at: vfs_write+0x211/0xb30 [ 69.706181][ T5317] #1: ffff888042a3d590 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: udf_file_write_iter+0x6e/0x6c0 [ 69.710859][ T5317] #2: ffff888042a3d3c0 (&ei->i_data_sem#2){++++}-{4:4}, at: udf_map_block+0x283/0x45f0 [ 69.715308][ T5317] #3: ffff888011498928 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_prealloc_blocks+0x8d0/0x10b0 [ 69.719783][ T5317] [ 69.719783][ T5317] stack backtrace: [ 69.722494][ T5317] CPU: 0 UID: 0 PID: 5317 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 69.722515][ T5317] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 69.722523][ T5317] Call Trace: [ 69.722532][ T5317] [ 69.722539][ T5317] dump_stack_lvl+0x189/0x250 [ 69.722563][ T5317] ? __pfx_dump_stack_lvl+0x10/0x10 [ 69.722583][ T5317] ? __pfx__printk+0x10/0x10 [ 69.722598][ T5317] ? print_lock_name+0xde/0x100 [ 69.722610][ T5317] print_deadlock_bug+0x28b/0x2a0 [ 69.722626][ T5317] validate_chain+0x1a3f/0x2140 [ 69.722639][ T5317] ? __schedule+0x17ae/0x4cc0 [ 69.722705][ T5317] ? do_raw_spin_unlock+0x4d/0x240 [ 69.722725][ T5317] __lock_acquire+0xab9/0xd20 [ 69.722742][ T5317] ? udf_free_blocks+0x9e2/0x17f0 [ 69.722762][ T5317] lock_acquire+0x120/0x360 [ 69.722774][ T5317] ? udf_free_blocks+0x9e2/0x17f0 [ 69.722799][ T5317] __mutex_lock+0x187/0x1350 [ 69.722815][ T5317] ? udf_free_blocks+0x9e2/0x17f0 [ 69.722838][ T5317] ? folio_mark_accessed+0x3d8/0x8b0 [ 69.722862][ T5317] ? __pfx_folio_mark_accessed+0x10/0x10 [ 69.722882][ T5317] ? udf_free_blocks+0x9e2/0x17f0 [ 69.722901][ T5317] ? __pfx___mutex_lock+0x10/0x10 [ 69.722921][ T5317] ? __pfx___might_resched+0x10/0x10 [ 69.722934][ T5317] ? fs_reclaim_acquire+0x7d/0x100 [ 69.722951][ T5317] udf_free_blocks+0x9e2/0x17f0 [ 69.722968][ T5317] ? udf_get_fileshortad+0x6e/0x1b0 [ 69.722982][ T5317] ? udf_current_aext+0x698/0xb00 [ 69.722992][ T5317] ? __pfx_udf_free_blocks+0x10/0x10 [ 69.723014][ T5317] udf_delete_aext+0x4df/0xbc0 [ 69.723029][ T5317] ? __pfx_udf_delete_aext+0x10/0x10 [ 69.723044][ T5317] udf_prealloc_blocks+0xb7e/0x10b0 [ 69.723064][ T5317] ? __pfx_udf_new_block+0x10/0x10 [ 69.723082][ T5317] ? __pfx_udf_prealloc_blocks+0x10/0x10 [ 69.723104][ T5317] udf_map_block+0x1f70/0x45f0 [ 69.723120][ T5317] ? percpu_ref_get_many+0x19/0x140 [ 69.723137][ T5317] ? __pfx_udf_map_block+0x10/0x10 [ 69.723148][ T5317] ? percpu_ref_get_many+0x19/0x140 [ 69.723164][ T5317] ? percpu_ref_get_many+0x19/0x140 [ 69.723188][ T5317] ? do_raw_spin_lock+0x121/0x290 [ 69.723206][ T5317] ? do_raw_spin_unlock+0x4d/0x240 [ 69.723221][ T5317] __udf_get_block+0x52/0x250 [ 69.723231][ T5317] ? create_empty_buffers+0x465/0x530 [ 69.723246][ T5317] __block_write_begin_int+0x6b5/0x1900 [ 69.723259][ T5317] ? __pfx_workingset_update_node+0x10/0x10 [ 69.723274][ T5317] ? __pfx_udf_get_block+0x10/0x10 [ 69.723284][ T5317] ? __pfx___block_write_begin_int+0x10/0x10 [ 69.723297][ T5317] ? __pfx_udf_get_block+0x10/0x10 [ 69.723307][ T5317] block_write_begin+0x8a/0x120 [ 69.723319][ T5317] ? udf_write_begin+0x92/0x270 [ 69.723330][ T5317] udf_write_begin+0x115/0x270 [ 69.723342][ T5317] generic_perform_write+0x2c5/0x900 [ 69.723357][ T5317] ? __pfx_generic_perform_write+0x10/0x10 [ 69.723367][ T5317] ? file_update_time+0x416/0x490 [ 69.723380][ T5317] ? __generic_file_write_iter+0xf9/0x230 [ 69.723390][ T5317] ? udf_file_write_iter+0x1a3/0x6c0 [ 69.723408][ T5317] udf_file_write_iter+0x2d5/0x6c0 [ 69.723428][ T5317] vfs_write+0x5c9/0xb30 [ 69.723443][ T5317] ? __pfx_udf_file_write_iter+0x10/0x10 [ 69.723460][ T5317] ? __pfx_vfs_write+0x10/0x10 [ 69.723492][ T5317] ? __fget_files+0x2a/0x420 [ 69.723513][ T5317] __x64_sys_pwrite64+0x193/0x220 [ 69.723531][ T5317] ? __pfx___x64_sys_pwrite64+0x10/0x10 [ 69.723549][ T5317] ? do_syscall_64+0xbe/0xfa0 [ 69.723565][ T5317] do_syscall_64+0xfa/0xfa0 [ 69.723579][ T5317] ? lockdep_hardirqs_on+0x9c/0x150 [ 69.723599][ T5317] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.723609][ T5317] ? clear_bhb_loop+0x60/0xb0 [ 69.723622][ T5317] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.723636][ T5317] RIP: 0033:0x7fcc9238f6c9 [ 69.723649][ T5317] 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 [ 69.723658][ T5317] RSP: 002b:00007fcc931e0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 69.723674][ T5317] RAX: ffffffffffffffda RBX: 00007fcc925e5fa0 RCX: 00007fcc9238f6c9 [ 69.723684][ T5317] RDX: 0000000000000006 RSI: 00002000000020c0 RDI: 0000000000000008 [ 69.723692][ T5317] RBP: 00007fcc92411f91 R08: 0000000000000000 R09: 0000000000000000 [ 69.723700][ T5317] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 [ 69.723708][ T5317] R13: 00007fcc925e6038 R14: 00007fcc925e5fa0 R15: 00007ffcb7baf8b8 [ 69.723721][ T5317] [ 70.701400][ T5297] Bluetooth: hci0: command tx timeout [ 72.781632][ T5297] Bluetooth: hci0: command tx timeout [ 74.461554][ T55] usb 5-1: unable to get BOS descriptor or descriptor too short [ 74.464900][ T55] usb 5-1: no configurations [ 74.466952][ T55] usb 5-1: can't read configurations, error -22 [ 74.591533][ T55] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 74.721488][ T55] usb 5-1: device descriptor read/64, error -32 [ 74.831877][ T55] usb usb5-port1: attempt power cycle [ 74.861563][ T5297] Bluetooth: hci0: command tx timeout [ 75.171484][ T55] usb 5-1: new high-speed USB device number 4 using dummy_hcd [ 75.192695][ T55] usb 5-1: device descriptor read/8, error -32 [ 75.431424][ T55] usb 5-1: new high-speed USB device number 5 using dummy_hcd [ 75.451675][ T55] usb 5-1: device descriptor read/8, error -32 [ 75.561520][ T55] usb usb5-port1: unable to enumerate USB device