program: r0 = open(&(0x7f00000000c0)='.\x00', 0x0, 0x0) 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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") r1 = creat(0x0, 0x0) ioctl$VIDIOC_SUBDEV_G_DV_TIMINGS(r1, 0xc0845658, 0x0) r2 = open(&(0x7f0000000240)='./file1\x00', 0x145142, 0x0) ftruncate(r2, 0x2007ffc) sendfile(r2, r2, 0x0, 0x800000009) r3 = open(&(0x7f0000000000)='./bus\x00', 0x60142, 0x0) r4 = open(&(0x7f0000000080)='./bus\x00', 0x185102, 0x0) ftruncate(r4, 0x2007ffb) sendfile(r3, r4, 0x0, 0x1000000201005) syz_mount_image$btrfs(&(0x7f0000005100), &(0x7f0000000040)='./file1\x00', 0x800810, &(0x7f0000000080)={[{@usebackuproot}, {@nodatasum}, {@ssd_spread}, {@user_subvol_rm}, {@flushoncommit}, {@compress_force}, {@acl}, {@nodiscard}]}, 0xfb, 0x50f9, &(0x7f0000005140)="$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creat(&(0x7f0000000380)='./bus\x00', 0x0) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000200)='blkio.bfq.io_service_bytes_recursive\x00', 0x275a, 0x0) write$binfmt_misc(r5, &(0x7f0000000040), 0xe09) getdents(r0, &(0x7f0000000300)=""/104, 0x68) r6 = accept$nfc_llcp(0xffffffffffffffff, &(0x7f0000000280), &(0x7f0000000340)=0x60) r7 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x105042, 0x1ff) fstat(r7, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0x0}) setreuid(0x0, r8) getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000380)={0x0, 0x0}, &(0x7f00000003c0)=0xc) sendmsg$nl_netfilter(r0, &(0x7f0000000c00)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000bc0)={&(0x7f0000000600)={0x534, 0x14, 0x2, 0x401, 0x70bd26, 0x25dfdbfd, {0x0, 0x0, 0xa}, [@nested={0x96, 0x57, 0x0, 0x1, [@nested={0x4, 0x162}, @typed={0x8, 0x13a, 0x0, 0x0, @u32=0x7f}, @generic="3bb518370f9601e9dc5422bc8a03b1ede833b95743d8d843500ae0266946fb3195f244308882091c0a27943d22f7486365eb7079165e6fdd92e0764cfbd3e57f24222384368bb48bd4da730c5c8cfcf779c2cff69a2c47ff8fe4ed5efba33779d4ad77e1fdf8755ffa0ce9064c832021c6d989bf380beeb9cd49", @typed={0xb, 0x48, 0x0, 0x0, @str='TIPCv2\x00'}]}, @nested={0xf9, 0x115, 0x0, 0x1, [@nested={0x4, 0xb8}, @typed={0x1c, 0xa4, 0x0, 0x0, @binary="0378b4edd3e08d2eafc257eae8316dacc64f0787b2ef73a0"}, @typed={0x8, 0xbf, 0x0, 0x0, @fd=r6}, @typed={0x8, 0x5d, 0x0, 0x0, @uid=r8}, @nested={0x4, 0x15e}, @generic="c27f7fd2605780d02493ca1e68834e0e4fcd77a1fb647fe0b6e9ff837900070b56c013e12082c3e15285e76dc529e848f9fb01dbc6095c3a418d869f5d711cb98715aba6204cf5023dd8e55b6556161d33e9087ca8b48a88a4f13fb99b393364f88cb46b9a4a186c62f54ef6636977a54430c477cee9b0ba64770feee4ae8a5532c5b254b119702b57ddd218b3ea794a714906f7aade395537507e54c20c62dd0391dbab7e09bb835b4e8c03b7ea7f9eef", @typed={0xc, 0x66, 0x0, 0x0, @u64=0x1}, @nested={0x4, 0x1}]}, @generic="f3ece9d9f9d9093d84864a370049bfdf489d60243f6ee9fd645a39d650255fb90cb0212816b406b114ea9e75e7b9b71865d859bea968b4aefe0239c8f596b43a9f6731877f869408784d5aa1310053f570c48ab03156b125d27d0392077d0f131776df68a4b135fdd77a69d83b30898eb9282b568316c16dff10b8f6f8efb19cfe2b860778ed1cb19abb87acdebd113a2497aa26ac29f7841417b321b8c2496d6ae6fdd3ad6475a890f1a85494285412ad9636c8d069c4", @typed={0x8, 0x15e, 0x0, 0x0, @ipv4=@multicast1}, @nested={0x129, 0x79, 0x0, 0x1, [@generic="2eb753f47944af8f0109de3cdcb17f5db6a6c86c513ac7fe514d39900730c101d575f7d47758310e19b893b302", @nested={0x4, 0x8d}, @generic="7d436fb515a830f45f459a133fc55f285f4115668102b13e4c90ee7de0e44f4bcb46cbdaa038214590bd7a58aa428bc00b68c1b827fd2dc986c20d8a3ed96c3ce5a1412b0501b1997145fe8aa187ff13e31b27330f7e3f09ecdc7db8629cf670dcaeb5d5acdac7018afb6adfb40b0fba8b80dd73572a9b481a2e32fa4fb8a8ba6e306f5e8307d89d80e7cf033fd6bb2d8b88dc1ffc29066312f7088e", @typed={0x8, 0x67, 0x0, 0x0, @uid=r9}, @typed={0x14, 0x8b, 0x0, 0x0, @ipv6=@initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @nested={0x4, 0x8a}, @nested={0x37, 0x5b, 0x0, 0x1, [@nested={0x8, 0x11a, 0x0, 0x1, [@typed={0x4, 0xe1}]}, @generic="e2ef7c23f2d19d38179acf29adb184826bed9c027610171a134f9b35771e1d", @generic="b705bdc076d3c49f8025e95c"]}]}, @nested={0x11c, 0x111, 0x0, 0x1, [@generic="9cc4c7d3f1593731019250f619306bc3444e5cf50e97a0e6028e6ca6f83529a471d70e23fc4d66d02d7fb788e4740c211e383d229bd32ef30d72e9fdc0d77f2e56c1251cdc7e1aca23a9c47ff65b6a2add0942656a", @nested={0x4, 0x2b}, @generic="e7c1c1d271a68ee2377cfbd0b16c81f8b74334771aed553388d3f291d97efbf147906e61df58bbeff36d21fa45edfefb9d2d91d776b0fb7ed38f3d53bdd7561f2e6bbdb169d0e74377acf46d9c67fede7f133898a33a39a8d74754d7e6f3a1f08a6f84954437389128affcb32d0cc20c14342caecf7b606180fe3da82d3b4c", @typed={0x3e, 0x9d, 0x0, 0x0, @binary="0071090b0e21c930000892398a0a8d3abaf5ce179bdefe8d9df5c3ff0f1f081f8b2cf6904be05ccf2f95a980355fca191204a36f452f8134fd37"}]}, @generic="d6b1a484ba2a4b305ce510366b93069dd7a8178f15ecd8707f09bb0ffce4679f8c8a3e114da6fa4fd644656bc3f2b2f1aa22d2977873d4c8ea9c1884cbbfe69366154d8a0b709de0cf9aacf1f52e858ae86c99907b1492bfe0dba2551ce5e848ac6a1b89149d7ee201725acde53e1f55df5f7ec667d83bc945d36a61743f4722d17fad"]}, 0x534}, 0x1, 0x0, 0x0, 0x4000}, 0x4000004) r10 = socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_NL_MEDIA_GET(r10, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000005c0)={&(0x7f0000000200)={0x6c, r11, 0x1, 0x0, 0x0, {0x3}, [@TIPC_NLA_BEARER={0x58, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_UDP_OPTS={0x44, 0x4, {{0x20, 0x1, @in6={0xa, 0x0, 0x0, @dev={0xfe, 0x80, '\x00', 0x13}, 0xf8}}, {0x20, 0x2, @in6={0xa, 0x0, 0x0, @mcast2}}}}, @TIPC_NLA_BEARER_NAME={0xd, 0x1, @udp='udp:syz0\x00'}]}]}, 0x6c}}, 0x0) r12 = socket$nl_generic(0x10, 0x3, 0x10) r13 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000400), 0xffffffffffffffff) r14 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r14, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newtaction={0x74, 0x30, 0xb, 0x0, 0x0, {}, [{0x60, 0x1, [@m_ct={0x5c, 0x1, 0x0, 0x0, {{0x7}, {0x34, 0x2, 0x0, 0x1, [@TCA_CT_PARMS={0x18}, @TCA_CT_ACTION={0x6, 0x3, 0x19}, @TCA_CT_NAT_IPV4_MIN={0x8, 0x9, @initdev={0xac, 0x1e, 0x0, 0x0}}, @TCA_CT_NAT_IPV4_MAX={0x8, 0xa, @dev}]}, {0x4}, {0xc}, {0xc}}}]}]}, 0x74}}, 0x0) sendmsg$TIPC_NL_KEY_SET(r12, &(0x7f0000000100)={0x0, 0x2800, &(0x7f0000000080)={&(0x7f00000001c0)=ANY=[@ANYBLOB="01000000", @ANYRES16=r13, @ANYBLOB="0100000000000000000003000000400001802c0004001400010002000000ac14140f00000000000000001400020002000000ffffffff00000000000000000d0001007564703a73797a3200000000"], 0x54}}, 0x0) [ 103.111686][ T5307] loop0: detected capacity change from 0 to 2048 [ 103.134580][ T5307] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=2362, location=2362 [ 103.161426][ T4637] Bluetooth: hci0: command tx timeout [ 103.324805][ T5307] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d [ 103.346980][ T5307] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 160: 0xd2 != 0xd4 [ 103.378398][ T5307] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 103.461008][ T24] audit: type=1800 audit(1786435266.430:2): pid=5307 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 [ 104.382113][ T5307] [ 104.383435][ T5307] ============================================ [ 104.386419][ T5307] WARNING: possible recursive locking detected [ 104.389561][ T5307] syzkaller #0 Not tainted [ 104.391838][ T5307] -------------------------------------------- [ 104.394839][ T5307] syz.0.0/5307 is trying to acquire lock: [ 104.397549][ T5307] ffff8880125c5120 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_free_blocks+0xa8c/0x1900 [ 104.402226][ T5307] [ 104.402226][ T5307] but task is already holding lock: [ 104.405886][ T5307] ffff8880125c5120 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_prealloc_blocks+0x8ea/0x10e0 [ 104.410560][ T5307] [ 104.410560][ T5307] other info that might help us debug this: [ 104.415410][ T5307] Possible unsafe locking scenario: [ 104.415410][ T5307] [ 104.420170][ T5307] CPU0 [ 104.422002][ T5307] ---- [ 104.423594][ T5307] lock(&sbi->s_alloc_mutex); [ 104.425959][ T5307] lock(&sbi->s_alloc_mutex); [ 104.428426][ T5307] [ 104.428426][ T5307] *** DEADLOCK *** [ 104.428426][ T5307] [ 104.432626][ T5307] May be due to missing lock nesting notation [ 104.432626][ T5307] [ 104.436620][ T5307] 5 locks held by syz.0.0/5307: [ 104.439225][ T5307] #0: ffff88803fb70b70 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x246/0x320 [ 104.443608][ T5307] #1: ffff888036e38450 (sb_writers#12){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 [ 104.447902][ T5307] #2: ffff88801322afc0 (&sb->s_type->i_mutex_key#24){+.+.}-{4:4}, at: udf_file_write_iter+0x75/0x6c0 [ 104.453211][ T5307] #3: ffff88801322ada0 (&ei->i_data_sem#3){++++}-{4:4}, at: udf_map_block+0x29c/0x4280 [ 104.457808][ T5307] #4: ffff8880125c5120 (&sbi->s_alloc_mutex){+.+.}-{4:4}, at: udf_prealloc_blocks+0x8ea/0x10e0 [ 104.462788][ T5307] [ 104.462788][ T5307] stack backtrace: [ 104.465628][ T5307] CPU: 0 UID: 0 PID: 5307 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 104.465654][ T5307] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 104.465663][ T5307] Call Trace: [ 104.465672][ T5307] [ 104.465681][ T5307] dump_stack_lvl+0xe8/0x150 [ 104.465710][ T5307] print_deadlock_bug+0x279/0x290 [ 104.465734][ T5307] __lock_acquire+0x24df/0x2cf0 [ 104.465755][ T5307] ? __lock_acquire+0x683/0x2cf0 [ 104.465775][ T5307] ? udf_free_blocks+0xa8c/0x1900 [ 104.465793][ T5307] lock_acquire+0x106/0x350 [ 104.465810][ T5307] ? udf_free_blocks+0xa8c/0x1900 [ 104.465825][ T5307] __mutex_lock+0x19d/0x1550 [ 104.465896][ T5307] ? udf_free_blocks+0xa8c/0x1900 [ 104.465909][ T5307] ? __lock_acquire+0x683/0x2cf0 [ 104.465921][ T5307] ? udf_free_blocks+0xa8c/0x1900 [ 104.465934][ T5307] ? __pfx___mutex_lock+0x10/0x10 [ 104.465947][ T5307] ? fs_reclaim_acquire+0x7c/0x100 [ 104.465960][ T5307] udf_free_blocks+0xa8c/0x1900 [ 104.465976][ T5307] ? bdev_getblk+0x58b/0x6e0 [ 104.465992][ T5307] ? __lock_acquire+0x13e8/0x2cf0 [ 104.466006][ T5307] ? udf_get_fileshortad+0x6e/0x1b0 [ 104.466018][ T5307] ? __pfx_udf_free_blocks+0x10/0x10 [ 104.466028][ T5307] ? udf_current_aext+0x6bc/0xc50 [ 104.466036][ T5307] ? udf_next_aext+0x404/0x4f0 [ 104.466046][ T5307] udf_delete_aext+0x4f5/0xc00 [ 104.466054][ T5307] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 104.466067][ T5307] ? __pfx_udf_delete_aext+0x10/0x10 [ 104.466079][ T5307] ? udf_next_aext+0x40b/0x4f0 [ 104.466092][ T5307] udf_prealloc_blocks+0xbd4/0x10e0 [ 104.466112][ T5307] ? __pfx_udf_new_block+0x10/0x10 [ 104.466129][ T5307] ? udf_current_aext+0x6c3/0xc50 [ 104.466148][ T5307] ? __pfx_udf_prealloc_blocks+0x10/0x10 [ 104.466164][ T5307] ? udf_next_aext+0x404/0x4f0 [ 104.466180][ T5307] udf_map_block+0x1e7f/0x4280 [ 104.466201][ T5307] ? __pfx_udf_map_block+0x10/0x10 [ 104.466215][ T5307] ? check_noncircular+0xda/0x150 [ 104.466241][ T5307] ? do_raw_spin_lock+0x12b/0x2f0 [ 104.466257][ T5307] ? do_raw_spin_unlock+0x4d/0x210 [ 104.466270][ T5307] __udf_get_block+0x52/0x250 [ 104.466283][ T5307] __block_write_begin_int+0x6c2/0x1900 [ 104.466300][ T5307] ? filemap_add_folio+0x350/0x530 [ 104.466315][ T5307] ? __pfx_udf_get_block+0x10/0x10 [ 104.466335][ T5307] ? __pfx___block_write_begin_int+0x10/0x10 [ 104.466351][ T5307] ? __pfx_udf_get_block+0x10/0x10 [ 104.466370][ T5307] block_write_begin+0x8d/0x120 [ 104.466384][ T5307] ? udf_write_begin+0x92/0x270 [ 104.466402][ T5307] udf_write_begin+0x118/0x270 [ 104.466422][ T5307] generic_perform_write+0x2d5/0x8f0 [ 104.466437][ T5307] ? __pfx_generic_perform_write+0x10/0x10 [ 104.466449][ T5307] ? file_update_time_flags+0x219/0x4a0 [ 104.466466][ T5307] ? __generic_file_write_iter+0xf9/0x230 [ 104.466478][ T5307] ? udf_file_write_iter+0x1c4/0x6c0 [ 104.466497][ T5307] udf_file_write_iter+0x2e8/0x6c0 [ 104.466515][ T5307] vfs_write+0x612/0xba0 [ 104.466533][ T5307] ? __pfx_vfs_write+0x10/0x10 [ 104.466549][ T5307] ? __fget_files+0x2a/0x420 [ 104.466565][ T5307] ksys_write+0x150/0x270 [ 104.466580][ T5307] ? __pfx_ksys_write+0x10/0x10 [ 104.466597][ T5307] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 104.466610][ T5307] do_syscall_64+0x174/0x580 [ 104.466626][ T5307] ? trace_irq_disable+0x3b/0x140 [ 104.466644][ T5307] ? clear_bhb_loop+0x70/0xc0 [ 104.466659][ T5307] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 104.466674][ T5307] RIP: 0033:0x7f354a79e0d9 [ 104.466691][ T5307] 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 [ 104.466702][ T5307] RSP: 002b:00007f354b60dfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 104.466718][ T5307] RAX: ffffffffffffffda RBX: 00007f354aa25fa0 RCX: 00007f354a79e0d9 [ 104.466729][ T5307] RDX: 0000000000000e09 RSI: 0000200000000040 RDI: 0000000000000009 [ 104.466739][ T5307] RBP: 00007f354a835024 R08: 0000000000000000 R09: 0000000000000000 [ 104.466750][ T5307] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 104.466761][ T5307] R13: 00007f354aa26038 R14: 00007f354aa25fa0 R15: 00007ffc2657c728 [ 104.466774][ T5307] [ 104.668601][ T24] audit: type=1800 audit(1786435267.670:3): pid=5308 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 [ 105.233328][ T4637] Bluetooth: hci0: command tx timeout [ 107.313769][ T4637] Bluetooth: hci0: command tx timeout