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, &(0x7f0000000140)={{0x12, 0x1, 0x250, 0x0, 0x0, 0x0, 0x40, 0x6cb, 0x2968, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x1, 0x2, 0x20, 0x5, [{{0x9, 0x4, 0x0, 0xfe, 0x1, 0x3, 0x1, 0x3, 0x0, {0x9, 0x21, 0x7, 0x1, 0x1, {0x22, 0x9f8}}, {{{0x9, 0x5, 0x81, 0x3, 0x40, 0x1, 0x80, 0xb5}}}}}]}}]}}, 0x0) truncate(&(0x7f00000013c0)='./file1\x00', 0x0) symlink(&(0x7f0000000080)='.\x00', &(0x7f0000000000)='./file0\x00') syz_clone(0x11, 0x0, 0xfed9, 0x0, 0x0, 0x0) [ 75.789095][ T5339] Bluetooth: hci0: command tx timeout [ 75.868774][ T5362] loop0: detected capacity change from 0 to 2048 [ 75.926237][ T5362] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=2362, location=2362 [ 75.949377][ T5362] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d [ 75.974069][ T5362] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 160: 0xd2 != 0xd4 [ 75.979481][ T5362] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 76.005642][ T25] audit: type=1800 audit(1757444724.638:2): pid=5362 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 [ 76.365111][ T5360] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 76.370973][ T1316] ieee802154 phy0 wpan0: encryption failed: -22 [ 76.374026][ T1316] ieee802154 phy1 wpan1: encryption failed: -22 [ 76.679699][ T5369] [ 76.680716][ T5369] ============================================ [ 76.683300][ T5369] WARNING: possible recursive locking detected [ 76.685806][ T5369] syzkaller #0 Not tainted [ 76.687613][ T5369] -------------------------------------------- [ 76.690107][ T5369] syz.0.0/5369 is trying to acquire lock: [ 76.692444][ T5369] ffff8880002d4528 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_free_blocks+0x9e2/0x17f0 [ 76.696568][ T5369] [ 76.696568][ T5369] but task is already holding lock: [ 76.699630][ T5369] ffff8880002d4528 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_new_block+0xfab/0x1ba0 [ 76.703627][ T5369] [ 76.703627][ T5369] other info that might help us debug this: [ 76.707069][ T5369] Possible unsafe locking scenario: [ 76.707069][ T5369] [ 76.710199][ T5369] CPU0 [ 76.711754][ T5369] ---- [ 76.713304][ T5369] lock(&sbi->s_alloc_mutex); [ 76.715450][ T5369] lock(&sbi->s_alloc_mutex); [ 76.717557][ T5369] [ 76.717557][ T5369] *** DEADLOCK *** [ 76.717557][ T5369] [ 76.721083][ T5369] May be due to missing lock nesting notation [ 76.721083][ T5369] [ 76.724644][ T5369] 4 locks held by syz.0.0/5369: [ 76.726845][ T5369] #0: ffff8880002ce428 (sb_writers#12){.+.+}-{0:0}, at: vfs_coredump+0x1daa/0x2a50 [ 76.731065][ T5369] #1: ffff8880449e2280 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: udf_file_write_iter+0x6e/0x6c0 [ 76.735914][ T5369] #2: ffff8880449e20b0 (&ei->i_data_sem#2){++++}-{4:4}, at: udf_map_block+0x283/0x45f0 [ 76.740197][ T5369] #3: ffff8880002d4528 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_new_block+0xfab/0x1ba0 [ 76.744314][ T5369] [ 76.744314][ T5369] stack backtrace: [ 76.746914][ T5369] CPU: 0 UID: 0 PID: 5369 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.746928][ T5369] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 76.746935][ T5369] Call Trace: [ 76.746943][ T5369] [ 76.746949][ T5369] dump_stack_lvl+0x189/0x250 [ 76.746966][ T5369] ? __pfx_dump_stack_lvl+0x10/0x10 [ 76.746978][ T5369] ? __pfx__printk+0x10/0x10 [ 76.746994][ T5369] ? print_lock_name+0xde/0x100 [ 76.747009][ T5369] print_deadlock_bug+0x28b/0x2a0 [ 76.747023][ T5369] validate_chain+0x1a3f/0x2140 [ 76.747036][ T5369] ? __pfx___schedule+0x10/0x10 [ 76.747115][ T5369] __lock_acquire+0xab9/0xd20 [ 76.747133][ T5369] ? udf_free_blocks+0x9e2/0x17f0 [ 76.747148][ T5369] lock_acquire+0x120/0x360 [ 76.747163][ T5369] ? udf_free_blocks+0x9e2/0x17f0 [ 76.747181][ T5369] __mutex_lock+0x187/0x1350 [ 76.747192][ T5369] ? udf_free_blocks+0x9e2/0x17f0 [ 76.747207][ T5369] ? folio_mark_accessed+0x42c/0x8b0 [ 76.747224][ T5369] ? __pfx_folio_mark_accessed+0x10/0x10 [ 76.747240][ T5369] ? udf_free_blocks+0x9e2/0x17f0 [ 76.747256][ T5369] ? __pfx___mutex_lock+0x10/0x10 [ 76.747268][ T5369] ? __pfx___might_resched+0x10/0x10 [ 76.747279][ T5369] ? fs_reclaim_acquire+0x7d/0x100 [ 76.747296][ T5369] udf_free_blocks+0x9e2/0x17f0 [ 76.747315][ T5369] ? udf_get_fileshortad+0x6e/0x1b0 [ 76.747335][ T5369] ? __pfx_udf_free_blocks+0x10/0x10 [ 76.747356][ T5369] udf_delete_aext+0x4df/0xbc0 [ 76.747368][ T5369] ? udf_get_fileshortad+0x6e/0x1b0 [ 76.747385][ T5369] ? __pfx_udf_delete_aext+0x10/0x10 [ 76.747400][ T5369] udf_new_block+0x1404/0x1ba0 [ 76.747415][ T5369] ? rcu_is_watching+0x15/0xb0 [ 76.747429][ T5369] ? udf_write_aext+0x4ff/0x7b0 [ 76.747441][ T5369] ? udf_do_extend_file+0xe3b/0x1180 [ 76.747452][ T5369] ? udf_get_filelongad+0x6e/0x1b0 [ 76.747466][ T5369] ? __pfx_udf_new_block+0x10/0x10 [ 76.747488][ T5369] udf_map_block+0x13a8/0x45f0 [ 76.747506][ T5369] ? __pfx_udf_map_block+0x10/0x10 [ 76.747528][ T5369] ? do_raw_spin_unlock+0x4d/0x240 [ 76.747542][ T5369] __udf_get_block+0x52/0x250 [ 76.747554][ T5369] __block_write_begin_int+0x6b2/0x1900 [ 76.747568][ T5369] ? folio_add_lru+0x1b2/0x3d0 [ 76.747583][ T5369] ? __pfx_udf_get_block+0x10/0x10 [ 76.747594][ T5369] ? __pfx___block_write_begin_int+0x10/0x10 [ 76.747606][ T5369] ? __pfx_udf_get_block+0x10/0x10 [ 76.747616][ T5369] block_write_begin+0x8a/0x120 [ 76.747626][ T5369] ? udf_write_begin+0x92/0x270 [ 76.747636][ T5369] udf_write_begin+0x115/0x270 [ 76.747647][ T5369] generic_perform_write+0x2c5/0x900 [ 76.747661][ T5369] ? __pfx_generic_perform_write+0x10/0x10 [ 76.747672][ T5369] ? file_update_time+0x416/0x490 [ 76.747683][ T5369] ? __generic_file_write_iter+0xf9/0x230 [ 76.747693][ T5369] ? udf_file_write_iter+0x1a3/0x6c0 [ 76.747703][ T5369] udf_file_write_iter+0x2d5/0x6c0 [ 76.747720][ T5369] ? __pfx_udf_file_write_iter+0x10/0x10 [ 76.747729][ T5369] __kernel_write_iter+0x425/0x910 [ 76.747743][ T5369] ? __pfx_udf_file_write_iter+0x10/0x10 [ 76.747753][ T5369] ? __pfx___kernel_write_iter+0x10/0x10 [ 76.747764][ T5369] ? do_raw_spin_unlock+0x4d/0x240 [ 76.747777][ T5369] ? __asan_memset+0x22/0x50 [ 76.747788][ T5369] ? iov_iter_bvec+0xb8/0x180 [ 76.747800][ T5369] dump_user_range+0x8a0/0xc90 [ 76.747817][ T5369] ? __pfx_dump_user_range+0x10/0x10 [ 76.747829][ T5369] ? elf_coredump_extra_notes_write+0x42e/0x4b0 [ 76.747843][ T5369] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10 [ 76.747854][ T5369] ? __kasan_kmalloc+0x93/0xb0 [ 76.747867][ T5369] ? dump_emit+0xa6/0xe0 [ 76.747879][ T5369] ? elf_core_dump+0x2cff/0x3990 [ 76.747894][ T5369] elf_core_dump+0x337b/0x3990 [ 76.747911][ T5369] ? __pfx_elf_core_dump+0x10/0x10 [ 76.747925][ T5369] ? kasan_save_track+0x4f/0x80 [ 76.747936][ T5369] ? kasan_save_track+0x3e/0x80 [ 76.747945][ T5369] ? __kasan_kmalloc+0x93/0xb0 [ 76.747956][ T5369] ? __kvmalloc_node_noprof+0x30d/0x5f0 [ 76.747969][ T5369] ? coredump_write+0x340/0x1900 [ 76.747981][ T5369] ? vfs_coredump+0x1daa/0x2a50 [ 76.747993][ T5369] ? get_signal+0x1109/0x1340 [ 76.748002][ T5369] ? arch_do_signal_or_restart+0x9a/0x750 [ 76.748018][ T5369] ? irqentry_exit_to_user_mode+0x81/0x120 [ 76.748028][ T5369] ? exc_page_fault+0x9f/0xf0 [ 76.748043][ T5369] ? asm_exc_page_fault+0x26/0x30 [ 76.748064][ T5369] ? 0xffffffffff600000 [ 76.748074][ T5369] ? up_write+0x1c4/0x420 [ 76.748087][ T5369] coredump_write+0x1166/0x1900 [ 76.748104][ T5369] ? __pfx_coredump_write+0x10/0x10 [ 76.748120][ T5369] ? unshare_files+0xa9/0x140 [ 76.748134][ T5369] vfs_coredump+0x1daa/0x2a50 [ 76.748146][ T5369] ? rep_stos_alternative+0xf/0x80 [ 76.748163][ T5369] ? __pfx_vfs_coredump+0x10/0x10 [ 76.748181][ T5369] ? is_bpf_text_address+0x26/0x2b0 [ 76.748198][ T5369] ? __lock_acquire+0xab9/0xd20 [ 76.748216][ T5369] ? __lock_acquire+0xab9/0xd20 [ 76.748232][ T5369] ? is_bpf_text_address+0x26/0x2b0 [ 76.748249][ T5369] ? is_bpf_text_address+0x26/0x2b0 [ 76.748265][ T5369] ? is_bpf_text_address+0x292/0x2b0 [ 76.748280][ T5369] ? is_bpf_text_address+0x26/0x2b0 [ 76.748295][ T5369] ? kernel_text_address+0xa5/0xe0 [ 76.748311][ T5369] ? __kernel_text_address+0xd/0x40 [ 76.748339][ T5369] ? unwind_get_return_address+0x4d/0x90 [ 76.748351][ T5369] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 76.748366][ T5369] ? arch_stack_walk+0xfc/0x150 [ 76.748380][ T5369] ? stack_trace_save+0x9c/0xe0 [ 76.748392][ T5369] ? stack_depot_save_flags+0x40/0x860 [ 76.748410][ T5369] ? kasan_save_track+0x4f/0x80 [ 76.748420][ T5369] ? kasan_save_track+0x3e/0x80 [ 76.748430][ T5369] ? kasan_save_free_info+0x46/0x50 [ 76.748444][ T5369] ? __kasan_slab_free+0x5b/0x80 [ 76.748454][ T5369] ? kmem_cache_free+0x18f/0x400 [ 76.748465][ T5369] ? get_signal+0xa4c/0x1340 [ 76.748473][ T5369] ? arch_do_signal_or_restart+0x9a/0x750 [ 76.748488][ T5369] ? irqentry_exit_to_user_mode+0x81/0x120 [ 76.748497][ T5369] ? exc_page_fault+0x9f/0xf0 [ 76.748511][ T5369] ? asm_exc_page_fault+0x26/0x30 [ 76.748533][ T5369] ? _raw_spin_unlock_irq+0x23/0x50 [ 76.748548][ T5369] ? lockdep_hardirqs_on+0x9c/0x150 [ 76.748563][ T5369] get_signal+0x1109/0x1340 [ 76.748578][ T5369] arch_do_signal_or_restart+0x9a/0x750 [ 76.748595][ T5369] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 76.748610][ T5369] ? __bad_area_nosemaphore+0x3fb/0x780 [ 76.748624][ T5369] ? local_irq_enable_exit_to_user+0x5/0x10 [ 76.748641][ T5369] irqentry_exit_to_user_mode+0x81/0x120 [ 76.748651][ T5369] exc_page_fault+0x9f/0xf0 [ 76.748667][ T5369] asm_exc_page_fault+0x26/0x30 [ 76.748677][ T5369] RIP: 0033:0x7fd054b8ebb1 [ 76.748687][ T5369] Code: 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 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f [ 76.748696][ T5369] RSP: 002b:000000000000fed0 EFLAGS: 00010217 [ 76.748706][ T5369] RAX: 0000000000000000 RBX: 00007fd054dd5fa0 RCX: 00007fd054b8eba9 [ 76.748719][ T5369] RDX: 0000000000000000 RSI: 000000000000fed0 RDI: 0000000000000011 [ 76.748726][ T5369] RBP: 00007fd054c11e19 R08: 0000000000000000 R09: 0000000000000000 [ 76.748732][ T5369] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 76.748739][ T5369] R13: 00007fd054dd6038 R14: 00007fd054dd5fa0 R15: 00007ffd24bf9018 [ 76.748750][ T5369]