program: syz_mount_image$udf(&(0x7f0000000180), &(0x7f0000000100)='./bus\x00', 0x1014494, &(0x7f00000002c0)={[{@iocharset={'iocharset', 0x3d, 'iso8859-4'}}, {@partition={'partition', 0x3d, 0x6}}, {@gid_forget}, {@session={'session', 0x3d, 0xfe8}}, {@noadinicb}, {@anchor}, {@uid_forget}]}, 0xfe, 0xc24, &(0x7f0000001480)="$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") 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) [ 101.113880][ T4669] Bluetooth: hci0: command tx timeout [ 101.239544][ T5323] loop0: detected capacity change from 0 to 2048 [ 101.322773][ T5323] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=2362, location=2362 [ 101.371850][ T5323] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d [ 101.385561][ T5323] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 160: 0xd2 != 0xd4 [ 101.405592][ T5323] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 101.449870][ T24] audit: type=1800 audit(1775460757.529:2): pid=5323 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 [ 101.813560][ T5317] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 102.122140][ T5323] [ 102.123496][ T5323] ============================================ [ 102.126618][ T5323] WARNING: possible recursive locking detected [ 102.129977][ T5323] syzkaller #0 Not tainted [ 102.132700][ T5323] -------------------------------------------- [ 102.136558][ T5323] syz.0.0/5323 is trying to acquire lock: [ 102.139318][ T5323] ffff888011ee7128 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_free_blocks+0xaaf/0x1940 [ 102.143090][ T5323] [ 102.143090][ T5323] but task is already holding lock: [ 102.146342][ T5323] ffff888011ee7128 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_new_block+0x104a/0x1c70 [ 102.150978][ T5323] [ 102.150978][ T5323] other info that might help us debug this: [ 102.154534][ T5323] Possible unsafe locking scenario: [ 102.154534][ T5323] [ 102.157997][ T5323] CPU0 [ 102.159753][ T5323] ---- [ 102.161601][ T5323] lock(&sbi->s_alloc_mutex); [ 102.164117][ T5323] lock(&sbi->s_alloc_mutex); [ 102.166458][ T5323] [ 102.166458][ T5323] *** DEADLOCK *** [ 102.166458][ T5323] [ 102.169725][ T5323] May be due to missing lock nesting notation [ 102.169725][ T5323] [ 102.173085][ T5323] 4 locks held by syz.0.0/5323: [ 102.175392][ T5323] #0: ffff8880127ac420 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 102.179423][ T5323] #1: ffff8880477bc2a0 (&type->i_mutex_dir_key#8){+.+.}-{4:4}, at: path_openat+0xb4c/0x3860 [ 102.183398][ T5323] #2: ffff8880477bc0d0 (&ei->i_data_sem#2){++++}-{4:4}, at: udf_map_block+0x2a4/0x4330 [ 102.187270][ T5323] #3: ffff888011ee7128 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_new_block+0x104a/0x1c70 [ 102.192529][ T5323] [ 102.192529][ T5323] stack backtrace: [ 102.195450][ T5323] CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 102.195471][ T5323] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 102.195480][ T5323] Call Trace: [ 102.195488][ T5323] [ 102.195496][ T5323] dump_stack_lvl+0xe8/0x150 [ 102.195520][ T5323] print_deadlock_bug+0x279/0x290 [ 102.195542][ T5323] __lock_acquire+0x253f/0x2cf0 [ 102.195562][ T5323] ? unwind_next_frame+0xa5/0x23c0 [ 102.195584][ T5323] lock_acquire+0xf0/0x2e0 [ 102.195597][ T5323] ? udf_free_blocks+0xaaf/0x1940 [ 102.195618][ T5323] __mutex_lock+0x19f/0x1300 [ 102.195677][ T5323] ? udf_free_blocks+0xaaf/0x1940 [ 102.195689][ T5323] ? __lock_acquire+0x6b5/0x2cf0 [ 102.195707][ T5323] ? __lock_acquire+0x6b5/0x2cf0 [ 102.195722][ T5323] ? udf_free_blocks+0xaaf/0x1940 [ 102.195733][ T5323] ? __pfx___mutex_lock+0x10/0x10 [ 102.195747][ T5323] ? folio_mark_accessed+0x3a9/0x8c0 [ 102.195764][ T5323] udf_free_blocks+0xaaf/0x1940 [ 102.195778][ T5323] ? bdev_getblk+0x582/0x6e0 [ 102.195791][ T5323] ? udf_get_fileshortad+0x6e/0x1b0 [ 102.195802][ T5323] ? udf_current_aext+0x698/0xb30 [ 102.195815][ T5323] ? __pfx_udf_free_blocks+0x10/0x10 [ 102.195828][ T5323] ? udf_next_aext+0x447/0x530 [ 102.195848][ T5323] udf_delete_aext+0x4fb/0xbd0 [ 102.195864][ T5323] ? __pfx_udf_delete_aext+0x10/0x10 [ 102.195876][ T5323] ? udf_next_aext+0x447/0x530 [ 102.195891][ T5323] udf_new_block+0x149e/0x1c70 [ 102.195906][ T5323] ? rcu_is_watching+0x15/0xb0 [ 102.195925][ T5323] ? udf_do_extend_file+0xea4/0x11e0 [ 102.195940][ T5323] ? __pfx_udf_new_block+0x10/0x10 [ 102.195957][ T5323] udf_map_block+0x1375/0x4330 [ 102.195975][ T5323] ? bdev_getblk+0xbe/0x6e0 [ 102.195985][ T5323] ? __pfx_udf_map_block+0x10/0x10 [ 102.195998][ T5323] ? bdev_getblk+0x582/0x6e0 [ 102.196007][ T5323] ? udf_fiiter_add_entry+0x25b/0x20c0 [ 102.196026][ T5323] ? udf_fiiter_bread_blk+0x84e/0x9e0 [ 102.196038][ T5323] ? __pfx_udf_fiiter_bread_blk+0x10/0x10 [ 102.196048][ T5323] ? do_raw_spin_lock+0x12b/0x2f0 [ 102.196063][ T5323] ? __mark_inode_dirty+0x4cf/0x1470 [ 102.196075][ T5323] udf_bread+0x7a/0x460 [ 102.196087][ T5323] ? rcu_is_watching+0x15/0xb0 [ 102.196104][ T5323] udf_fiiter_append_blk+0x366/0x870 [ 102.196116][ T5323] ? __pfx_udf_fiiter_append_blk+0x10/0x10 [ 102.196127][ T5323] ? udf_copy_fi+0x170/0x870 [ 102.196137][ T5323] ? udf_fiiter_advance+0x261/0x350 [ 102.196146][ T5323] ? udf_fiiter_add_entry+0x3ad/0x20c0 [ 102.196162][ T5323] udf_fiiter_add_entry+0x1620/0x20c0 [ 102.196179][ T5323] ? __mutex_unlock_slowpath+0x1bd/0x7d0 [ 102.196196][ T5323] ? __pfx_udf_fiiter_add_entry+0x10/0x10 [ 102.196211][ T5323] ? __mutex_trylock_common+0x158/0x260 [ 102.196230][ T5323] ? __lock_acquire+0x6b5/0x2cf0 [ 102.196244][ T5323] ? __lock_acquire+0x6b5/0x2cf0 [ 102.196260][ T5323] ? inode_set_ctime_to_ts+0x116/0x310 [ 102.196277][ T5323] ? do_raw_spin_unlock+0x4d/0x210 [ 102.196289][ T5323] udf_add_nondir+0x124/0x360 [ 102.196302][ T5323] ? udf_new_inode+0x99f/0xd10 [ 102.196313][ T5323] ? __pfx_udf_add_nondir+0x10/0x10 [ 102.196330][ T5323] ? rcu_is_watching+0x15/0xb0 [ 102.196344][ T5323] ? __mark_inode_dirty+0x4cf/0x1470 [ 102.196358][ T5323] ? __pfx_udf_create+0x10/0x10 [ 102.196372][ T5323] path_openat+0x1395/0x3860 [ 102.196389][ T5323] ? __pfx_path_openat+0x10/0x10 [ 102.196401][ T5323] ? __lock_acquire+0x6b5/0x2cf0 [ 102.196416][ T5323] do_file_open+0x23e/0x4a0 [ 102.196428][ T5323] ? __pfx_do_file_open+0x10/0x10 [ 102.196442][ T5323] ? _raw_spin_unlock+0x28/0x50 [ 102.196454][ T5323] ? alloc_fd+0x64b/0x6c0 [ 102.196469][ T5323] do_sys_openat2+0x113/0x200 [ 102.196484][ T5323] ? __se_sys_futex+0x3a8/0x450 [ 102.196499][ T5323] ? __pfx_do_sys_openat2+0x10/0x10 [ 102.196516][ T5323] ? rcu_is_watching+0x15/0xb0 [ 102.196535][ T5323] __x64_sys_creat+0x8f/0xc0 [ 102.196552][ T5323] do_syscall_64+0x14d/0xf80 [ 102.196567][ T5323] ? trace_irq_disable+0x3b/0x150 [ 102.196577][ T5323] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.196589][ T5323] ? clear_bhb_loop+0x40/0x90 [ 102.196601][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.196620][ T5323] RIP: 0033:0x7fb66319c819 [ 102.196635][ T5323] 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 [ 102.196644][ T5323] RSP: 002b:00007fb66402bfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 102.196654][ T5323] RAX: ffffffffffffffda RBX: 00007fb663415fa0 RCX: 00007fb66319c819 [ 102.196661][ T5323] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000001c0 [ 102.196666][ T5323] RBP: 00007fb663232c91 R08: 0000000000000000 R09: 0000000000000000 [ 102.196672][ T5323] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 102.196677][ T5323] R13: 00007fb663416038 R14: 00007fb663415fa0 R15: 00007ffd104f9f58 [ 102.196688][ T5323] [ 103.123559][ T4669] Bluetooth: hci0: command tx timeout [ 105.203737][ T4669] Bluetooth: hci0: command tx timeout [ 107.043693][ T5317] usb 5-1: unable to get BOS descriptor or descriptor too short [ 107.043739][ T5317] usb 5-1: no configurations [ 107.043748][ T5317] usb 5-1: can't read configurations, error -22 [ 107.173517][ T5317] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 107.283637][ T4669] Bluetooth: hci0: command tx timeout [ 107.303639][ T5317] usb 5-1: device descriptor read/64, error -32 [ 107.413623][ T5317] usb usb5-port1: attempt power cycle [ 107.753491][ T5317] usb 5-1: new high-speed USB device number 4 using dummy_hcd [ 107.777656][ T5317] usb 5-1: device descriptor read/8, error -32 [ 108.013476][ T5317] usb 5-1: new high-speed USB device number 5 using dummy_hcd [ 108.033830][ T5317] usb 5-1: device descriptor read/8, error -32