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r0 = open(&(0x7f0000000040)='.\x00', 0x0, 0x0) open(&(0x7f0000000140)='./file1\x00', 0x141242, 0x40) r1 = socket$can_j1939(0x1d, 0x2, 0x7) setsockopt$SO_J1939_FILTER(r1, 0x6b, 0x1, &(0x7f0000000440)=[{0x1, 0x1, {0x0, 0xf0, 0x2}, {0x1, 0xff, 0x4}, 0x2, 0xfd}, {0x3, 0x1, {0x2, 0xf0}, {0x1, 0x0, 0x4}, 0xfd, 0x1}, {0x3, 0x3, {0x0, 0x1, 0x2}, {0x1, 0xf0}, 0xfe, 0xfe}, {0x0, 0x0, {0x0, 0x1}, {0x1, 0xff, 0x3}}], 0xc2) fdatasync(r0) perf_event_open(&(0x7f00000003c0)={0x2, 0x80, 0x6d, 0x2, 0x0, 0x0, 0x0, 0x0, 0x8, 0x5, 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, 0x4, @perf_bp={0x0, 0xc}, 0x100001, 0x3, 0x0, 0x6, 0x20000, 0x0, 0x7, 0x0, 0x0, 0x0, 0x4}, 0x0, 0xfffffaffffffffff, 0xffffffffffffffff, 0x8) syz_mount_image$ext4(&(0x7f0000000080)='ext4\x00', &(0x7f0000000000)='./file1\x00', 0x3000046, &(0x7f00000004c0)={[{@delalloc}, {@data_err_abort}, {@barrier_val={'barrier', 0x3d, 0x2}}, {@usrquota}, {@data_err_ignore}, {@mb_optimize_scan={'mb_optimize_scan', 0x3d, 0x1}}, {@oldalloc}, {@grpquota}, {@noload}, {@user_xattr}, {@bh}, {@dioread_nolock}]}, 0x1, 0x553, &(0x7f0000001080)="$eJzs3d9rW1UcAPDvTdv91nUwhopIYQ9O5tK19ccEH+aj6HCg7zO0d2U0WUaTjrUO3B7ciy8yBBEH4ru++zj8B/wrBjoYMoo++BK56U2XrUmbddnSmc8Hbjkn9ybnfnPv9/TcnBsSwNCayP4UIl6OiG+SiIMRkeTrRiNfObG23er9q7PZkkSj8elfSXO7rN56rdbz9ueVlyLit68ijhc2tltbXlkolcvpYl6frFcuTdaWV05cqJTm0/n04vTMzKm3Z6bfe/edvsX6xtl/vv/k9oenvj66+t0vdw/dTOJ0HMjXtcfxBK61VyZiIn9PxuL0IxtO9aGxnSQZ9A6wLSN5no9F1gccjJE864H/vy8jogEMqUT+w5BqjQNa1/Z9ug5+btz7YO0CaGP8o2ufjcSe5rXRvtXkoSuj7Hp3vA/tZ238+uetm9kS/fscAmBL165HxMnR0Y39X5L3f9t3sodtHm1D/wfPzu1s/PNmp/FPYX38Ex3GP/s75O52bJ3/hbt9aKarbPz3fsfx7/qk1fhIXnuhOeYbS85fKKdZ3/ZiRByLsd1ZfbP5nFOrdxrd1rWP/7Ila781Fsz34+7o7oefM1eql54k5nb3rke80nH8m6wf/6TD8c/ej7M9tnEkvfVat3Vbx/90NX6KeL3j8X8wo5VsPj852TwfJltnxUZ/3zjye7f2Bx1/dvz3bR7/eNI+X1t7/DZ+3PNv2m3dQ/FH7+f/ruSzZnlX/tiVUr2+OBWxK/l44+PTD57bqre2z+I/dnTz/q/T+b83Ij7vMf4bh39+taf4B3T85x7r+D9+4c5HX/zQrf3e+r+3mqVj+SO99H+97uCTvHcAAAAAAACw0xQi4kAkheJ6uVAoFtfu7zgc+wrlaq1+/Hx16eJcNL8rOx5jhdZM98G2+yGm8vthW/XpR+ozEXEoIr4d2dusF2er5blBBw8AAAAAAAAAAAAAAAAAAAA7xP4u3//P/DEy6L0Dnjo/+Q3Da8v878cvPQE7kv//MLzkPwwv+Q/DS/7D8JL/MLzkPwwv+Q/DS/4DAAAAAAAAAAAAAAAAAAAAAAAAAABAX509cyZbGqv3r85m9bnLy0sL1csn5tLaQrGyNFucrS5eKs5Xq/PltDhbrWz1euVq9dLUdCxdmayntfpkbXnlXKW6dLF+7kKlNJ+eS8eeSVQAAAAAAAAAAAAAAAAAAADwfKktryyUyuV0UUFhW4XRnbEbCn0uDLpnAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIAH/gsAAP//6AY3sQ==") getsockopt$inet_sctp_SCTP_AUTOCLOSE(r0, 0x84, 0x4, &(0x7f00000000c0), &(0x7f0000000100)=0x4) r2 = open(&(0x7f0000000140)='./file1\x00', 0x141242, 0x40) pwrite64(r2, &(0x7f0000000940)='2', 0x1, 0x8000c61) [ 77.271074][ T4671] Bluetooth: hci0: command tx timeout [ 77.275517][ T1314] ieee802154 phy0 wpan0: encryption failed: -22 [ 77.278201][ T1314] ieee802154 phy1 wpan1: encryption failed: -22 [ 77.551822][ T5323] loop0: detected capacity change from 0 to 32768 [ 77.562565][ T5323] ======================================================= [ 77.562565][ T5323] WARNING: The mand mount option has been deprecated and [ 77.562565][ T5323] and is ignored by this kernel. Remove the mand [ 77.562565][ T5323] option from the mount to silence this warning. [ 77.562565][ T5323] ======================================================= [ 77.626671][ T5323] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. [ 77.679552][ T5323] [ 77.680690][ T5323] ====================================================== [ 77.683715][ T5323] WARNING: possible circular locking dependency detected [ 77.686462][ T5323] syzkaller #0 Not tainted [ 77.688446][ T5323] ------------------------------------------------------ [ 77.691457][ T5323] syz.0.0/5323 is trying to acquire lock: [ 77.693823][ T5323] ffff88804501bf60 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_try_remove_refcount_tree+0xb6/0x320 [ 77.698312][ T5323] [ 77.698312][ T5323] but task is already holding lock: [ 77.701466][ T5323] ffff88804501bff8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_try_remove_refcount_tree+0xa4/0x320 [ 77.706095][ T5323] [ 77.706095][ T5323] which lock already depends on the new lock. [ 77.706095][ T5323] [ 77.710416][ T5323] [ 77.710416][ T5323] the existing dependency chain (in reverse order) is: [ 77.714118][ T5323] [ 77.714118][ T5323] -> #4 (&oi->ip_xattr_sem){++++}-{4:4}: [ 77.717501][ T5323] lock_acquire+0x120/0x360 [ 77.719722][ T5323] down_read+0x46/0x2e0 [ 77.721845][ T5323] ocfs2_init_acl+0x2f9/0x720 [ 77.724062][ T5323] ocfs2_mknod+0x1321/0x2050 [ 77.726329][ T5323] ocfs2_create+0x1a5/0x440 [ 77.728589][ T5323] path_openat+0x14f1/0x3830 [ 77.730833][ T5323] do_filp_open+0x1fa/0x410 [ 77.732953][ T5323] do_sys_openat2+0x121/0x1c0 [ 77.735118][ T5323] __x64_sys_open+0x11e/0x150 [ 77.737061][ T5323] do_syscall_64+0xfa/0xfa0 [ 77.739059][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.741834][ T5323] [ 77.741834][ T5323] -> #3 (jbd2_handle){++++}-{0:0}: [ 77.745011][ T5323] lock_acquire+0x120/0x360 [ 77.747230][ T5323] start_this_handle+0x1fa7/0x21c0 [ 77.749728][ T5323] jbd2__journal_start+0x2c1/0x5b0 [ 77.752156][ T5323] jbd2_journal_start+0x2a/0x40 [ 77.754543][ T5323] ocfs2_start_trans+0x376/0x6d0 [ 77.756934][ T5323] ocfs2_mknod+0xe93/0x2050 [ 77.759114][ T5323] ocfs2_create+0x1a5/0x440 [ 77.761322][ T5323] path_openat+0x14f1/0x3830 [ 77.763604][ T5323] do_filp_open+0x1fa/0x410 [ 77.765805][ T5323] do_sys_openat2+0x121/0x1c0 [ 77.768114][ T5323] __x64_sys_open+0x11e/0x150 [ 77.770397][ T5323] do_syscall_64+0xfa/0xfa0 [ 77.772656][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.775448][ T5323] [ 77.775448][ T5323] -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 77.779076][ T5323] lock_acquire+0x120/0x360 [ 77.781347][ T5323] down_read+0x46/0x2e0 [ 77.783447][ T5323] ocfs2_start_trans+0x36a/0x6d0 [ 77.785889][ T5323] ocfs2_mknod+0xe93/0x2050 [ 77.788103][ T5323] ocfs2_create+0x1a5/0x440 [ 77.790364][ T5323] path_openat+0x14f1/0x3830 [ 77.792529][ T5323] do_filp_open+0x1fa/0x410 [ 77.794685][ T5323] do_sys_openat2+0x121/0x1c0 [ 77.796929][ T5323] __x64_sys_open+0x11e/0x150 [ 77.799115][ T5323] do_syscall_64+0xfa/0xfa0 [ 77.801305][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.804042][ T5323] [ 77.804042][ T5323] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 77.807016][ T5323] lock_acquire+0x120/0x360 [ 77.809206][ T5323] ocfs2_start_trans+0x26b/0x6d0 [ 77.811618][ T5323] ocfs2_truncate_file+0x643/0x1420 [ 77.813867][ T5323] ocfs2_setattr+0x1520/0x1b40 [ 77.816137][ T5323] notify_change+0xb33/0xe40 [ 77.818216][ T5323] do_truncate+0x1a4/0x220 [ 77.820537][ T5323] path_openat+0x306c/0x3830 [ 77.822687][ T5323] do_filp_open+0x1fa/0x410 [ 77.824683][ T5323] do_sys_openat2+0x121/0x1c0 [ 77.826878][ T5323] __x64_sys_open+0x11e/0x150 [ 77.829149][ T5323] do_syscall_64+0xfa/0xfa0 [ 77.831375][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.834151][ T5323] [ 77.834151][ T5323] -> #0 (&oi->ip_alloc_sem){+.+.}-{4:4}: [ 77.837449][ T5323] validate_chain+0xb9b/0x2140 [ 77.839716][ T5323] __lock_acquire+0xab9/0xd20 [ 77.841652][ T5323] lock_acquire+0x120/0x360 [ 77.843346][ T5323] down_write+0x96/0x1f0 [ 77.845127][ T5323] ocfs2_try_remove_refcount_tree+0xb6/0x320 [ 77.847618][ T5323] ocfs2_truncate_file+0xda0/0x1420 [ 77.850035][ T5323] ocfs2_setattr+0x1520/0x1b40 [ 77.852314][ T5323] notify_change+0xb33/0xe40 [ 77.854488][ T5323] do_truncate+0x1a4/0x220 [ 77.856689][ T5323] path_openat+0x306c/0x3830 [ 77.858706][ T5323] do_filp_open+0x1fa/0x410 [ 77.861251][ T5323] do_sys_openat2+0x121/0x1c0 [ 77.863416][ T5323] __x64_sys_open+0x11e/0x150 [ 77.865534][ T5323] do_syscall_64+0xfa/0xfa0 [ 77.867661][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.870519][ T5323] [ 77.870519][ T5323] other info that might help us debug this: [ 77.870519][ T5323] [ 77.874830][ T5323] Chain exists of: [ 77.874830][ T5323] &oi->ip_alloc_sem --> jbd2_handle --> &oi->ip_xattr_sem [ 77.874830][ T5323] [ 77.880333][ T5323] Possible unsafe locking scenario: [ 77.880333][ T5323] [ 77.883405][ T5323] CPU0 CPU1 [ 77.885731][ T5323] ---- ---- [ 77.888508][ T5323] lock(&oi->ip_xattr_sem); [ 77.891151][ T5323] lock(jbd2_handle); [ 77.894703][ T5323] lock(&oi->ip_xattr_sem); [ 77.897804][ T5323] lock(&oi->ip_alloc_sem); [ 77.899961][ T5323] [ 77.899961][ T5323] *** DEADLOCK *** [ 77.899961][ T5323] [ 77.902837][ T5323] 3 locks held by syz.0.0/5323: [ 77.904604][ T5323] #0: ffff88803133c420 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 77.908030][ T5323] #1: ffff88804501c2c0 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: do_truncate+0x171/0x220 [ 77.911616][ T5323] #2: ffff88804501bff8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_try_remove_refcount_tree+0xa4/0x320 [ 77.915044][ T5323] [ 77.915044][ T5323] stack backtrace: [ 77.917023][ T5323] CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 77.917038][ T5323] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 77.917045][ T5323] Call Trace: [ 77.917052][ T5323] [ 77.917058][ T5323] dump_stack_lvl+0x189/0x250 [ 77.917070][ T5323] ? __pfx_dump_stack_lvl+0x10/0x10 [ 77.917077][ T5323] ? __pfx__printk+0x10/0x10 [ 77.917085][ T5323] ? print_lock_name+0xde/0x100 [ 77.917092][ T5323] print_circular_bug+0x2ee/0x310 [ 77.917101][ T5323] check_noncircular+0x134/0x160 [ 77.917110][ T5323] validate_chain+0xb9b/0x2140 [ 77.917121][ T5323] __lock_acquire+0xab9/0xd20 [ 77.917132][ T5323] ? ocfs2_try_remove_refcount_tree+0xb6/0x320 [ 77.917142][ T5323] lock_acquire+0x120/0x360 [ 77.917151][ T5323] ? ocfs2_try_remove_refcount_tree+0xb6/0x320 [ 77.917162][ T5323] down_write+0x96/0x1f0 [ 77.917171][ T5323] ? ocfs2_try_remove_refcount_tree+0xb6/0x320 [ 77.917178][ T5323] ? __pfx_down_write+0x10/0x10 [ 77.917186][ T5323] ocfs2_try_remove_refcount_tree+0xb6/0x320 [ 77.917195][ T5323] ? __pfx_ocfs2_try_remove_refcount_tree+0x10/0x10 [ 77.917203][ T5323] ? up_write+0x1c4/0x420 [ 77.917211][ T5323] ocfs2_truncate_file+0xda0/0x1420 [ 77.917220][ T5323] ? __pfx_ocfs2_truncate_file+0x10/0x10 [ 77.917226][ T5323] ? do_raw_spin_unlock+0x4d/0x240 [ 77.917234][ T5323] ? _raw_spin_unlock+0x28/0x50 [ 77.917243][ T5323] ? ocfs2_inode_lock_tracker+0x3ec/0x660 [ 77.917253][ T5323] ? __pfx_ocfs2_inode_lock_tracker+0x10/0x10 [ 77.917261][ T5323] ? ocfs2_rw_lock+0x13a/0x240 [ 77.917268][ T5323] ? __pfx___dquot_initialize+0x10/0x10 [ 77.917278][ T5323] ? __pfx_ocfs2_rw_lock+0x10/0x10 [ 77.917287][ T5323] ? setattr_prepare+0x1e7/0xac0 [ 77.917296][ T5323] ? inode_newsize_ok+0x11b/0x1c0 [ 77.917305][ T5323] ocfs2_setattr+0x1520/0x1b40 [ 77.917317][ T5323] ? __pfx_ocfs2_setattr+0x10/0x10 [ 77.917326][ T5323] ? ktime_get_coarse_real_ts64_mg+0x59/0x1e0 [ 77.917338][ T5323] ? seqcount_lockdep_reader_access+0x174/0x1c0 [ 77.917352][ T5323] ? ktime_get_coarse_real_ts64_mg+0x1c5/0x1e0 [ 77.917361][ T5323] ? current_time+0x222/0x370 [ 77.917371][ T5323] ? evm_inode_setattr+0x1b6/0x7d0 [ 77.917380][ T5323] ? __pfx_current_time+0x10/0x10 [ 77.917389][ T5323] ? try_break_deleg+0x79/0x130 [ 77.917395][ T5323] ? __pfx_ocfs2_setattr+0x10/0x10 [ 77.917401][ T5323] notify_change+0xb33/0xe40 [ 77.917409][ T5323] do_truncate+0x1a4/0x220 [ 77.917416][ T5323] ? __pfx_do_truncate+0x10/0x10 [ 77.917422][ T5323] ? apparmor_file_truncate+0x23e/0x2d0 [ 77.917433][ T5323] path_openat+0x306c/0x3830 [ 77.917443][ T5323] ? __pfx_path_openat+0x10/0x10 [ 77.917451][ T5323] do_filp_open+0x1fa/0x410 [ 77.917456][ T5323] ? __lock_acquire+0xab9/0xd20 [ 77.917464][ T5323] ? __pfx_do_filp_open+0x10/0x10 [ 77.917472][ T5323] ? _raw_spin_unlock+0x28/0x50 [ 77.917480][ T5323] ? alloc_fd+0x64c/0x6c0 [ 77.917488][ T5323] do_sys_openat2+0x121/0x1c0 [ 77.917497][ T5323] ? __se_sys_futex+0x36f/0x400 [ 77.917505][ T5323] ? __pfx_do_sys_openat2+0x10/0x10 [ 77.917517][ T5323] __x64_sys_open+0x11e/0x150 [ 77.917526][ T5323] do_syscall_64+0xfa/0xfa0 [ 77.917532][ T5323] ? lockdep_hardirqs_on+0x9c/0x150 [ 77.917541][ T5323] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.917547][ T5323] ? clear_bhb_loop+0x60/0xb0 [ 77.917553][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.917560][ T5323] RIP: 0033:0x7fb0c358eec9 [ 77.917567][ T5323] 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 [ 77.917572][ T5323] RSP: 002b:00007fb0c4479038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 77.917580][ T5323] RAX: ffffffffffffffda RBX: 00007fb0c37e5fa0 RCX: 00007fb0c358eec9 [ 77.917585][ T5323] RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 [ 77.917589][ T5323] RBP: 00007fb0c3611f91 R08: 0000000000000000 R09: 0000000000000000 [ 77.917594][ T5323] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 77.917599][ T5323] R13: 00007fb0c37e6038 R14: 00007fb0c37e5fa0 R15: 00007ffd7b8d7d28 [ 77.917610][ T5323]