program: r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000280)='cgroup.controllers\x00', 0x275a, 0x0) r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000080)={0x3, 0x8, &(0x7f0000005580)=ANY=[@ANYBLOB="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&(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @sched_cls}, 0x48) ioctl$sock_ipv4_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000500)={'gre0\x00', &(0x7f0000000280)={'tunl0\x00', 0x0, 0x710, 0x1100, 0x0, 0x0, {{0x5, 0x4, 0x0, 0x1, 0x14, 0x0, 0x0, 0x5, 0x2f, 0x0, @empty, @loopback}}}}) syz_mount_image$udf(&(0x7f0000000180), &(0x7f0000000100)='./bus\x00', 0x1014494, &(0x7f0000000600)=ANY=[@ANYBLOB="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"], 0xfe, 0xc24, &(0x7f0000001480)="$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") r2 = open(&(0x7f0000000240)='./file1\x00', 0x145142, 0x0) bpf$PROG_LOAD(0x5, 0x0, 0x0) r3 = socket$inet(0x2, 0x80001, 0x84) getsockopt$inet_sctp_SCTP_MAX_BURST(r3, 0x84, 0x14, 0x0, 0x0) sendmsg(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2c}, 0x4000845) io_uring_enter(0xffffffffffffffff, 0x2219, 0x7721, 0x16, 0x0, 0x0) ftruncate(r2, 0x2007ffc) sendfile(r2, r2, 0x0, 0x800000009) r4 = open(&(0x7f0000000000)='./bus\x00', 0x60142, 0x0) mmap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x0, 0x13, 0xffffffffffffffff, 0x0) r5 = open(&(0x7f0000000080)='./bus\x00', 0x107382, 0x1d0) ftruncate(r5, 0x2007ffb) sendfile(r4, r5, 0x0, 0x1000000201005) syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000380)=ANY=[@ANYBLOB="1201500200000040"], 0x0) r6 = open(&(0x7f0000000180)='./bus\x00', 0x14937e, 0x111) pwrite64(r6, &(0x7f00000020c0)="2dfa", 0x2, 0x8) r7 = socket$netlink(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r7, 0x8933, &(0x7f0000000040)={'macvlan0\x00', 0x0}) sendmsg$nl_route(r7, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="480000001c00110c0000001400000f0007000000", @ANYRES32=r8, @ANYBLOB="800202000a0002"], 0x48}}, 0x0) ioctl$sock_SIOCGIFINDEX(r7, 0x8933, &(0x7f0000000140)={'batadv0\x00'}) r9 = socket$kcm(0x10, 0x2, 0x0) sendmsg$kcm(r9, &(0x7f0000000940)={0x0, 0xc, &(0x7f00000001c0), 0x1}, 0x0) bpf$BPF_PROG_DETACH(0x8, &(0x7f0000000000)={@map=r0, r1, 0x2f, 0x4, 0x4}, 0x20) [ 75.836502][ T4667] Bluetooth: hci0: command tx timeout [ 75.958588][ T5318] loop0: detected capacity change from 0 to 2048 [ 75.981230][ T5318] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=2362, location=2362 [ 75.994203][ T5318] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d [ 76.006661][ T5318] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 160: 0xd2 != 0xd4 [ 76.021655][ T5318] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 76.031121][ T25] audit: type=1800 audit(1762548712.437:2): pid=5318 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 [ 76.396361][ T55] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 76.449183][ T1314] ieee802154 phy0 wpan0: encryption failed: -22 [ 76.452297][ T1314] ieee802154 phy1 wpan1: encryption failed: -22 [ 76.573435][ T5318] [ 76.574610][ T5318] ============================================ [ 76.577239][ T5318] WARNING: possible recursive locking detected [ 76.579910][ T5318] syzkaller #0 Not tainted [ 76.581657][ T5318] -------------------------------------------- [ 76.584174][ T5318] syz.0.0/5318 is trying to acquire lock: [ 76.586574][ T5318] ffff888033065528 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_free_blocks+0x9e2/0x17f0 [ 76.590737][ T5318] [ 76.590737][ T5318] but task is already holding lock: [ 76.593562][ T5318] ffff888033065528 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_prealloc_blocks+0x8d0/0x10b0 [ 76.597825][ T5318] [ 76.597825][ T5318] other info that might help us debug this: [ 76.601070][ T5318] Possible unsafe locking scenario: [ 76.601070][ T5318] [ 76.604071][ T5318] CPU0 [ 76.605558][ T5318] ---- [ 76.606996][ T5318] lock(&sbi->s_alloc_mutex); [ 76.609137][ T5318] lock(&sbi->s_alloc_mutex); [ 76.611236][ T5318] [ 76.611236][ T5318] *** DEADLOCK *** [ 76.611236][ T5318] [ 76.614719][ T5318] May be due to missing lock nesting notation [ 76.614719][ T5318] [ 76.618322][ T5318] 4 locks held by syz.0.0/5318: [ 76.620383][ T5318] #0: ffff88801a7e4420 (sb_writers#12){.+.+}-{0:0}, at: vfs_write+0x211/0xb30 [ 76.623985][ T5318] #1: ffff888044989590 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: udf_file_write_iter+0x6e/0x6c0 [ 76.628444][ T5318] #2: ffff8880449893c0 (&ei->i_data_sem#2){++++}-{4:4}, at: udf_map_block+0x283/0x45f0 [ 76.632383][ T5318] #3: ffff888033065528 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_prealloc_blocks+0x8d0/0x10b0 [ 76.636863][ T5318] [ 76.636863][ T5318] stack backtrace: [ 76.639379][ T5318] CPU: 0 UID: 0 PID: 5318 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.639395][ T5318] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 76.639403][ T5318] Call Trace: [ 76.639411][ T5318] [ 76.639418][ T5318] dump_stack_lvl+0x189/0x250 [ 76.639438][ T5318] ? __pfx_dump_stack_lvl+0x10/0x10 [ 76.639453][ T5318] ? __pfx__printk+0x10/0x10 [ 76.639466][ T5318] ? print_lock_name+0xde/0x100 [ 76.639478][ T5318] print_deadlock_bug+0x28b/0x2a0 [ 76.639494][ T5318] validate_chain+0x1a3f/0x2140 [ 76.639507][ T5318] ? __lock_acquire+0xab9/0xd20 [ 76.639518][ T5318] ? do_raw_spin_lock+0x121/0x290 [ 76.639535][ T5318] __lock_acquire+0xab9/0xd20 [ 76.639547][ T5318] ? udf_free_blocks+0x9e2/0x17f0 [ 76.639562][ T5318] lock_acquire+0x120/0x360 [ 76.639572][ T5318] ? udf_free_blocks+0x9e2/0x17f0 [ 76.639592][ T5318] __mutex_lock+0x187/0x1350 [ 76.639647][ T5318] ? udf_free_blocks+0x9e2/0x17f0 [ 76.639657][ T5318] ? folio_mark_accessed+0x3d8/0x8b0 [ 76.639674][ T5318] ? __pfx_folio_mark_accessed+0x10/0x10 [ 76.639690][ T5318] ? udf_free_blocks+0x9e2/0x17f0 [ 76.639705][ T5318] ? __pfx___mutex_lock+0x10/0x10 [ 76.639722][ T5318] ? __pfx___might_resched+0x10/0x10 [ 76.639735][ T5318] ? fs_reclaim_acquire+0x7d/0x100 [ 76.639750][ T5318] udf_free_blocks+0x9e2/0x17f0 [ 76.639762][ T5318] ? udf_get_fileshortad+0x6e/0x1b0 [ 76.639771][ T5318] ? udf_current_aext+0x698/0xb00 [ 76.639778][ T5318] ? __pfx_udf_free_blocks+0x10/0x10 [ 76.639791][ T5318] udf_delete_aext+0x4df/0xbc0 [ 76.639799][ T5318] ? __pfx_udf_delete_aext+0x10/0x10 [ 76.639808][ T5318] udf_prealloc_blocks+0xb7e/0x10b0 [ 76.639819][ T5318] ? __pfx_udf_new_block+0x10/0x10 [ 76.639829][ T5318] ? __pfx_udf_prealloc_blocks+0x10/0x10 [ 76.639845][ T5318] udf_map_block+0x1f70/0x45f0 [ 76.639860][ T5318] ? percpu_ref_get_many+0x19/0x140 [ 76.639875][ T5318] ? __pfx_udf_map_block+0x10/0x10 [ 76.639884][ T5318] ? percpu_ref_get_many+0x19/0x140 [ 76.639898][ T5318] ? percpu_ref_get_many+0x19/0x140 [ 76.639921][ T5318] ? do_raw_spin_lock+0x121/0x290 [ 76.639938][ T5318] ? do_raw_spin_unlock+0x4d/0x240 [ 76.639950][ T5318] __udf_get_block+0x52/0x250 [ 76.639956][ T5318] ? create_empty_buffers+0x465/0x530 [ 76.639964][ T5318] __block_write_begin_int+0x6b5/0x1900 [ 76.639971][ T5318] ? __pfx_workingset_update_node+0x10/0x10 [ 76.639980][ T5318] ? __pfx_udf_get_block+0x10/0x10 [ 76.639986][ T5318] ? __pfx___block_write_begin_int+0x10/0x10 [ 76.639995][ T5318] ? __pfx_udf_get_block+0x10/0x10 [ 76.640000][ T5318] block_write_begin+0x8a/0x120 [ 76.640007][ T5318] ? udf_write_begin+0x92/0x270 [ 76.640014][ T5318] udf_write_begin+0x115/0x270 [ 76.640020][ T5318] generic_perform_write+0x2c5/0x900 [ 76.640028][ T5318] ? __pfx_generic_perform_write+0x10/0x10 [ 76.640035][ T5318] ? file_update_time+0x416/0x490 [ 76.640042][ T5318] ? __generic_file_write_iter+0xf9/0x230 [ 76.640048][ T5318] ? udf_file_write_iter+0x1a3/0x6c0 [ 76.640058][ T5318] udf_file_write_iter+0x2d5/0x6c0 [ 76.640069][ T5318] vfs_write+0x5c9/0xb30 [ 76.640083][ T5318] ? __pfx_udf_file_write_iter+0x10/0x10 [ 76.640098][ T5318] ? __pfx_vfs_write+0x10/0x10 [ 76.640112][ T5318] ? __fget_files+0x2a/0x420 [ 76.640135][ T5318] __x64_sys_pwrite64+0x193/0x220 [ 76.640151][ T5318] ? __pfx___x64_sys_pwrite64+0x10/0x10 [ 76.640167][ T5318] ? do_syscall_64+0xbe/0xfa0 [ 76.640185][ T5318] do_syscall_64+0xfa/0xfa0 [ 76.640200][ T5318] ? lockdep_hardirqs_on+0x9c/0x150 [ 76.640214][ T5318] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.640225][ T5318] ? clear_bhb_loop+0x60/0xb0 [ 76.640234][ T5318] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.640242][ T5318] RIP: 0033:0x7fbb1718f6c9 [ 76.640250][ T5318] 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 [ 76.640256][ T5318] RSP: 002b:00007fbb180a0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 76.640264][ T5318] RAX: ffffffffffffffda RBX: 00007fbb173e5fa0 RCX: 00007fbb1718f6c9 [ 76.640270][ T5318] RDX: 0000000000000002 RSI: 00002000000020c0 RDI: 000000000000000b [ 76.640274][ T5318] RBP: 00007fbb17211f91 R08: 0000000000000000 R09: 0000000000000000 [ 76.640280][ T5318] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 [ 76.640287][ T5318] R13: 00007fbb173e6038 R14: 00007fbb173e5fa0 R15: 00007ffe3bfa8e48 [ 76.640298][ T5318] [ 76.832145][ T5319] netlink: 32 bytes leftover after parsing attributes in process `syz.0.0'. [ 76.843765][ T5319] netlink: 32 bytes leftover after parsing attributes in process `syz.0.0'. [ 77.886507][ T4667] Bluetooth: hci0: command tx timeout [ 79.966341][ T4667] Bluetooth: hci0: command tx timeout [ 81.566378][ T55] usb 5-1: unable to get BOS descriptor or descriptor too short [ 81.569562][ T55] usb 5-1: no configurations [ 81.571678][ T55] usb 5-1: can't read configurations, error -22 [ 81.706087][ T55] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 81.836052][ T55] usb 5-1: device descriptor read/64, error -32 [ 81.946163][ T55] usb usb5-port1: attempt power cycle [ 82.046100][ T4667] Bluetooth: hci0: command tx timeout [ 82.286364][ T55] usb 5-1: new high-speed USB device number 4 using dummy_hcd [ 82.306216][ T55] usb 5-1: device descriptor read/8, error -32 [ 82.547653][ T55] usb 5-1: new high-speed USB device number 5 using dummy_hcd [ 82.566338][ T55] usb 5-1: device descriptor read/8, error -32 [ 82.677516][ T55] usb usb5-port1: unable to enumerate USB device