program: bpf$MAP_CREATE(0x2000000000000020, &(0x7f0000000140)=@base={0x0, 0x0, 0xfffffffc}, 0x48) perf_event_open(&(0x7f0000000480)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5d30, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0xb}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) openat$nci(0xffffffffffffff9c, &(0x7f00000002c0), 0x2, 0x0) perf_event_open(&(0x7f0000000180)={0x2, 0x80, 0xb, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0x3}}, 0x0, 0xe, 0xffffffffffffffff, 0x0) unlink(&(0x7f0000000000)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/file0\x00') bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x4, 0xd, &(0x7f0000000240)=@framed={{0x18, 0x2, 0x0, 0x0, 0x1}, [@call={0x85, 0x0, 0x0, 0x87}, @ringbuf_output={{}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x4}, {}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x2}}]}, &(0x7f0000000400)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x90) syz_mount_image$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)="$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") r0 = open(&(0x7f0000000240)='./file1\x00', 0x145142, 0x0) ftruncate(r0, 0x2007ffc) sendfile(r0, r0, 0x0, 0x800000009) r1 = open(&(0x7f0000000000)='./bus\x00', 0x60142, 0x0) r2 = open(&(0x7f0000000080)='./bus\x00', 0x185102, 0x0) ftruncate(r2, 0x2007ffb) sendfile(r1, r2, 0x0, 0x1000000201005) syz_usb_connect$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) creat(&(0x7f0000000380)='./bus\x00', 0xb) r3 = perf_event_open(&(0x7f0000000200)={0x2, 0x80, 0xc9, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x10000000}, 0x0, 0x5, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x1) ioctl$PERF_EVENT_IOC_SET_FILTER(r3, 0x40082406, &(0x7f0000000000)='cpu&\t\t') r4 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r4, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=@newlink={0x30, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_MTU={0x8, 0x4, 0x44}, @IFLA_GROUP={0x8}]}, 0x30}}, 0x0) r5 = socket$kcm(0xa, 0x2, 0x0) sendmsg$kcm(r5, &(0x7f0000000080)={&(0x7f0000000000)=@in6={0xa, 0x4e23, 0x0, @empty}, 0x80, 0x0, 0x0, &(0x7f00000000c0)=[{0x5c8, 0x29, 0x3, "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"}], 0x5c8}, 0xf7e5) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000200)='rdma.current\x00', 0x275a, 0x0) write$binfmt_script(r6, &(0x7f00000008c0), 0xfecc) set_mempolicy_home_node(&(0x7f0000000000/0x8000)=nil, 0x8000, 0x1, 0x0) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1, 0x12, r6, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000300)={0x14, 0x4, &(0x7f0000000040)=@framed={{0xffffffb4, 0x0, 0x0, 0x0, 0x0, 0x79, 0x10, 0x30}, [@ldst={0x3, 0x3, 0x3, 0xa, 0x0, 0xfffffffffffffff8}], {0x95, 0x0, 0x74}}, &(0x7f0000003ff6)='GPL\x00', 0x2, 0xc3, &(0x7f000000cf3d)=""/195, 0x0, 0x2, '\x00', 0x0, @lirc_mode2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0xffffffffffffffff}, 0x94) [ 74.357570][ T4685] Bluetooth: hci0: command tx timeout [ 74.519435][ T5338] loop0: detected capacity change from 0 to 2048 [ 74.528787][ T5338] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=2362, location=2362 [ 74.555013][ T5338] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d [ 74.572001][ T5338] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 160: 0xd2 != 0xd4 [ 74.585487][ T5338] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 74.630378][ T25] audit: type=1800 audit(1752793642.096:2): pid=5337 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 [ 75.011177][ T5335] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 75.353047][ T5342] [ 75.354254][ T5342] ============================================ [ 75.356969][ T5342] WARNING: possible recursive locking detected [ 75.359579][ T5342] 6.16.0-rc6-syzkaller-00121-g6832a9317eee #0 Not tainted [ 75.362673][ T5342] -------------------------------------------- [ 75.365294][ T5342] syz.0.0/5342 is trying to acquire lock: [ 75.367688][ T5342] ffff88803f382528 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_free_blocks+0x9e2/0x17f0 [ 75.371807][ T5342] [ 75.371807][ T5342] but task is already holding lock: [ 75.374890][ T5342] ffff88803f382528 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_new_block+0xfab/0x1ba0 [ 75.378890][ T5342] [ 75.378890][ T5342] other info that might help us debug this: [ 75.382478][ T5342] Possible unsafe locking scenario: [ 75.382478][ T5342] [ 75.385689][ T5342] CPU0 [ 75.387251][ T5342] ---- [ 75.388628][ T5342] lock(&sbi->s_alloc_mutex); [ 75.390613][ T5342] lock(&sbi->s_alloc_mutex); [ 75.393209][ T5342] [ 75.393209][ T5342] *** DEADLOCK *** [ 75.393209][ T5342] [ 75.397006][ T5342] May be due to missing lock nesting notation [ 75.397006][ T5342] [ 75.400774][ T5342] 5 locks held by syz.0.0/5342: [ 75.402963][ T5342] #0: ffff888040bfaef8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x247/0x320 [ 75.406889][ T5342] #1: ffff888033700428 (sb_writers#12){.+.+}-{0:0}, at: vfs_write+0x211/0xa90 [ 75.410807][ T5342] #2: ffff8880449d5c20 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: udf_file_write_iter+0x6e/0x6c0 [ 75.415261][ T5342] #3: ffff8880449d5a50 (&ei->i_data_sem#2){++++}-{4:4}, at: udf_map_block+0x291/0x42a0 [ 75.419764][ T5342] #4: ffff88803f382528 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_new_block+0xfab/0x1ba0 [ 75.424274][ T5342] [ 75.424274][ T5342] stack backtrace: [ 75.426983][ T5342] CPU: 0 UID: 0 PID: 5342 Comm: syz.0.0 Not tainted 6.16.0-rc6-syzkaller-00121-g6832a9317eee #0 PREEMPT(full) [ 75.427003][ T5342] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.427010][ T5342] Call Trace: [ 75.427018][ T5342] [ 75.427025][ T5342] dump_stack_lvl+0x189/0x250 [ 75.427045][ T5342] ? __pfx_dump_stack_lvl+0x10/0x10 [ 75.427058][ T5342] ? __pfx__printk+0x10/0x10 [ 75.427072][ T5342] ? trace_sched_exit_tp+0x38/0x120 [ 75.427092][ T5342] ? print_lock_name+0xde/0x100 [ 75.427108][ T5342] print_deadlock_bug+0x28b/0x2a0 [ 75.427127][ T5342] validate_chain+0x1a3f/0x2140 [ 75.427140][ T5342] ? __pfx___schedule+0x10/0x10 [ 75.427215][ T5342] __lock_acquire+0xab9/0xd20 [ 75.427226][ T5342] ? udf_free_blocks+0x9e2/0x17f0 [ 75.427240][ T5342] lock_acquire+0x120/0x360 [ 75.427250][ T5342] ? udf_free_blocks+0x9e2/0x17f0 [ 75.427265][ T5342] __mutex_lock+0x182/0xe80 [ 75.427278][ T5342] ? udf_free_blocks+0x9e2/0x17f0 [ 75.427289][ T5342] ? __pfx_folio_mark_accessed+0x10/0x10 [ 75.427305][ T5342] ? udf_free_blocks+0x9e2/0x17f0 [ 75.427318][ T5342] ? __pfx___mutex_lock+0x10/0x10 [ 75.427330][ T5342] ? __pfx___might_resched+0x10/0x10 [ 75.427343][ T5342] udf_free_blocks+0x9e2/0x17f0 [ 75.427359][ T5342] ? bdev_getblk+0x7b/0x690 [ 75.427373][ T5342] ? udf_get_fileshortad+0x6e/0x1b0 [ 75.427385][ T5342] ? __pfx_udf_free_blocks+0x10/0x10 [ 75.427405][ T5342] udf_delete_aext+0x4df/0xbc0 [ 75.427417][ T5342] ? udf_get_fileshortad+0x6e/0x1b0 [ 75.427428][ T5342] ? __pfx_udf_delete_aext+0x10/0x10 [ 75.427445][ T5342] udf_new_block+0x1404/0x1ba0 [ 75.427457][ T5342] ? rcu_is_watching+0x15/0xb0 [ 75.427474][ T5342] ? udf_write_aext+0x4ff/0x7b0 [ 75.427487][ T5342] ? udf_do_extend_file+0xe3b/0x1180 [ 75.427500][ T5342] ? udf_get_filelongad+0x6e/0x1b0 [ 75.427513][ T5342] ? __pfx_udf_new_block+0x10/0x10 [ 75.427528][ T5342] udf_map_block+0x12b1/0x42a0 [ 75.427547][ T5342] ? percpu_ref_get_many+0x19/0x140 [ 75.427560][ T5342] ? __pfx_udf_map_block+0x10/0x10 [ 75.427573][ T5342] ? percpu_ref_get_many+0x19/0x140 [ 75.427596][ T5342] ? do_raw_spin_lock+0x121/0x290 [ 75.427613][ T5342] ? do_raw_spin_unlock+0x4d/0x240 [ 75.427628][ T5342] __udf_get_block+0x52/0x250 [ 75.427639][ T5342] ? create_empty_buffers+0x465/0x530 [ 75.427658][ T5342] __block_write_begin_int+0x6b2/0x1900 [ 75.427675][ T5342] ? folio_add_lru+0x1b2/0x3d0 [ 75.427687][ T5342] ? __pfx_udf_get_block+0x10/0x10 [ 75.427700][ T5342] ? __pfx___block_write_begin_int+0x10/0x10 [ 75.427716][ T5342] ? __pfx_udf_get_block+0x10/0x10 [ 75.427729][ T5342] block_write_begin+0x8a/0x120 [ 75.427743][ T5342] ? udf_write_begin+0x7d/0x260 [ 75.427754][ T5342] udf_write_begin+0x100/0x260 [ 75.427773][ T5342] generic_perform_write+0x2c4/0x910 [ 75.427788][ T5342] ? __pfx_generic_perform_write+0x10/0x10 [ 75.427796][ T5342] ? file_update_time+0x416/0x490 [ 75.427807][ T5342] ? __generic_file_write_iter+0xf9/0x230 [ 75.427816][ T5342] ? udf_file_write_iter+0x1a3/0x6c0 [ 75.427830][ T5342] udf_file_write_iter+0x2d5/0x6c0 [ 75.427841][ T5342] vfs_write+0x548/0xa90 [ 75.427852][ T5342] ? __pfx_udf_file_write_iter+0x10/0x10 [ 75.427864][ T5342] ? __pfx_vfs_write+0x10/0x10 [ 75.427877][ T5342] ? __fget_files+0x2a/0x420 [ 75.427893][ T5342] ksys_write+0x145/0x250 [ 75.427904][ T5342] ? __pfx_ksys_write+0x10/0x10 [ 75.427914][ T5342] ? rcu_is_watching+0x15/0xb0 [ 75.427928][ T5342] ? do_syscall_64+0xbe/0x3b0 [ 75.427939][ T5342] do_syscall_64+0xfa/0x3b0 [ 75.427948][ T5342] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.427958][ T5342] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.427969][ T5342] ? clear_bhb_loop+0x60/0xb0 [ 75.427982][ T5342] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.427993][ T5342] RIP: 0033:0x7fdbe218e9a9 [ 75.428004][ T5342] 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 [ 75.428014][ T5342] RSP: 002b:00007fdbe300f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 75.428027][ T5342] RAX: ffffffffffffffda RBX: 00007fdbe23b6160 RCX: 00007fdbe218e9a9 [ 75.428035][ T5342] RDX: 000000000000fecc RSI: 00002000000008c0 RDI: 000000000000000e [ 75.428043][ T5342] RBP: 00007fdbe2210ca1 R08: 0000000000000000 R09: 0000000000000000 [ 75.428050][ T5342] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.428058][ T5342] R13: 0000000000000000 R14: 00007fdbe23b6160 R15: 00007ffcd7d23fa8 [ 75.428067][ T5342] [ 76.225124][ T1315] ieee802154 phy0 wpan0: encryption failed: -22 [ 76.227921][ T1315] ieee802154 phy1 wpan1: encryption failed: -22 [ 76.382561][ T4685] Bluetooth: hci0: command tx timeout [ 77.396586][ T5338] syz.0.0 (5338) used greatest stack depth: 20696 bytes left [ 78.460871][ T4685] Bluetooth: hci0: command tx timeout [ 80.221684][ T5335] usb 5-1: unable to get BOS descriptor or descriptor too short [ 80.225916][ T5335] usb 5-1: unable to read config index 0 descriptor/start: -32 [ 80.229198][ T5335] usb 5-1: chopping to 0 config(s) [ 80.231968][ T5335] usb 5-1: can't read configurations, error -32 [ 80.360896][ T5335] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 80.490978][ T5335] usb 5-1: device descriptor read/64, error -32 [ 80.540876][ T4685] Bluetooth: hci0: command tx timeout [ 80.600870][ T5335] usb usb5-port1: attempt power cycle [ 80.940843][ T5335] usb 5-1: new high-speed USB device number 4 using dummy_hcd [ 80.960987][ T5335] usb 5-1: device descriptor read/8, error -32 [ 81.200790][ T5335] usb 5-1: new high-speed USB device number 5 using dummy_hcd [ 81.221026][ T5335] usb 5-1: device descriptor read/8, error -32 [ 81.331144][ T5335] usb usb5-port1: unable to enumerate USB device