program: r0 = userfaultfd(0x80001) r1 = syz_open_dev$usbfs(&(0x7f0000000100), 0x77, 0x101301) ioctl$USBDEVFS_ALLOW_SUSPEND(r1, 0x5522) syz_mount_image$ocfs2(&(0x7f00000026c0), &(0x7f0000004780)='./file0\x00', 0x200000, &(0x7f0000000340)=ANY=[@ANYBLOB="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"], 0x1, 0x4703, &(0x7f0000004800)="$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ioctl$USBDEVFS_CONTROL(r1, 0xc0105500, &(0x7f0000000080)={0xa1, 0x0, 0x802, 0x0, 0x0, 0x4, 0x0}) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000000)) mkdir(&(0x7f0000000400)='./file0\x00', 0x0) mkdir(&(0x7f0000000400)='./file1\x00', 0x0) mkdir(&(0x7f0000000300)='./bus\x00', 0x0) mkdir(&(0x7f0000000100)='./file0/file0\x00', 0x0) mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000080)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]}) chdir(&(0x7f0000000140)='./bus\x00') r2 = openat$dir(0xffffffffffffff9c, &(0x7f00000003c0)='./file0\x00', 0x0, 0x0) mknodat(r2, &(0x7f0000000440)='./file0\x00', 0x800, 0x7f) fdatasync(r2) r3 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) close_range(r3, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000140)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x4}) syz_mount_image$fuse(0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) r4 = bpf$MAP_CREATE(0x0, &(0x7f00000009c0)=@base={0x6, 0x4, 0x8, 0x8}, 0x48) bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x7, 0xc, &(0x7f0000000000)=@framed={{}, [@ringbuf_output={{0x18, 0x5, 0x1, 0x0, r4}, {}, {0x3, 0x3, 0x3, 0xa, 0x5}, {}, {}, {}, {}, {0x85, 0x0, 0x0, 0x38}}]}, &(0x7f0000000440)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5}, 0x94) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000540)='pids.events\x00', 0x275a, 0x0) write$binfmt_script(r5, &(0x7f0000000000), 0x208e24b) [ 75.433504][ T5302] Bluetooth: hci0: command tx timeout [ 75.775735][ T5324] loop0: detected capacity change from 0 to 32768 [ 75.790612][ T5324] (syz.0.0,5324,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. [ 75.816558][ T5324] (syz.0.0,5324,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. [ 75.845078][ T5324] JBD2: Ignoring recovery information on journal [ 75.911949][ T5324] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 75.989444][ T5324] [ 75.990591][ T5324] ====================================================== [ 75.993575][ T5324] WARNING: possible circular locking dependency detected [ 75.996471][ T5324] syzkaller #0 Not tainted [ 75.998485][ T5324] ------------------------------------------------------ [ 76.001487][ T5324] syz.0.0/5324 is trying to acquire lock: [ 76.004155][ T5324] ffff888035ce6610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_setattr+0x969/0x1b40 [ 76.008321][ T5324] [ 76.008321][ T5324] but task is already holding lock: [ 76.011478][ T5324] ffff888043623f60 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x95a/0x1b40 [ 76.015585][ T5324] [ 76.015585][ T5324] which lock already depends on the new lock. [ 76.015585][ T5324] [ 76.019940][ T5324] [ 76.019940][ T5324] the existing dependency chain (in reverse order) is: [ 76.023481][ T5324] [ 76.023481][ T5324] -> #4 (&oi->ip_alloc_sem){+.+.}-{4:4}: [ 76.026912][ T5324] lock_acquire+0x120/0x360 [ 76.028997][ T5324] down_write+0x96/0x1f0 [ 76.031168][ T5324] ocfs2_try_remove_refcount_tree+0xb6/0x320 [ 76.033676][ T5324] ocfs2_xattr_set+0x595/0x11f0 [ 76.035665][ T5324] ocfs2_set_acl+0x701/0x7b0 [ 76.037693][ T5324] ocfs2_iop_set_acl+0x1aa/0x2a0 [ 76.039800][ T5324] vfs_remove_acl+0x48c/0x700 [ 76.041885][ T5324] ovl_workdir_create+0x594/0x8b0 [ 76.044235][ T5324] ovl_get_workdir+0x32b/0x17b0 [ 76.046347][ T5324] ovl_fill_super+0x154a/0x3da0 [ 76.048610][ T5324] get_tree_nodev+0xbb/0x150 [ 76.050902][ T5324] vfs_get_tree+0x92/0x2b0 [ 76.053098][ T5324] do_new_mount+0x302/0xa10 [ 76.055320][ T5324] __se_sys_mount+0x313/0x410 [ 76.057429][ T5324] do_syscall_64+0xfa/0xfa0 [ 76.059707][ T5324] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.062541][ T5324] [ 76.062541][ T5324] -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: [ 76.065832][ T5324] lock_acquire+0x120/0x360 [ 76.068169][ T5324] down_read+0x46/0x2e0 [ 76.070264][ T5324] ocfs2_init_acl+0x2f9/0x720 [ 76.072574][ T5324] ocfs2_mknod+0x1321/0x2050 [ 76.074804][ T5324] ocfs2_mkdir+0x191/0x440 [ 76.076905][ T5324] vfs_mkdir+0x306/0x510 [ 76.079017][ T5324] do_mkdirat+0x247/0x590 [ 76.081118][ T5324] __x64_sys_mkdir+0x6c/0x80 [ 76.083383][ T5324] do_syscall_64+0xfa/0xfa0 [ 76.085616][ T5324] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.088412][ T5324] [ 76.088412][ T5324] -> #2 (jbd2_handle){++++}-{0:0}: [ 76.091498][ T5324] lock_acquire+0x120/0x360 [ 76.093699][ T5324] start_this_handle+0x1fa7/0x21c0 [ 76.096041][ T5324] jbd2__journal_start+0x2c1/0x5b0 [ 76.098550][ T5324] jbd2_journal_start+0x2a/0x40 [ 76.100933][ T5324] ocfs2_start_trans+0x376/0x6d0 [ 76.103242][ T5324] ocfs2_modify_bh+0xe8/0x470 [ 76.105517][ T5324] ocfs2_local_read_info+0x1465/0x17e0 [ 76.108207][ T5324] dquot_load_quota_sb+0x791/0xbd0 [ 76.110558][ T5324] dquot_load_quota_inode+0x2e1/0x5d0 [ 76.113201][ T5324] ocfs2_enable_quotas+0x1c6/0x450 [ 76.115451][ T5324] ocfs2_fill_super+0x50fe/0x63c0 [ 76.117847][ T5324] get_tree_bdev_flags+0x40e/0x4d0 [ 76.120271][ T5324] vfs_get_tree+0x92/0x2b0 [ 76.122499][ T5324] do_new_mount+0x302/0xa10 [ 76.124707][ T5324] __se_sys_mount+0x313/0x410 [ 76.126892][ T5324] do_syscall_64+0xfa/0xfa0 [ 76.129114][ T5324] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.131819][ T5324] [ 76.131819][ T5324] -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 76.135384][ T5324] lock_acquire+0x120/0x360 [ 76.137604][ T5324] down_read+0x46/0x2e0 [ 76.139645][ T5324] ocfs2_start_trans+0x36a/0x6d0 [ 76.141992][ T5324] ocfs2_modify_bh+0xe8/0x470 [ 76.144294][ T5324] ocfs2_local_read_info+0x1465/0x17e0 [ 76.146743][ T5324] dquot_load_quota_sb+0x791/0xbd0 [ 76.149202][ T5324] dquot_load_quota_inode+0x2e1/0x5d0 [ 76.151745][ T5324] ocfs2_enable_quotas+0x1c6/0x450 [ 76.154223][ T5324] ocfs2_fill_super+0x50fe/0x63c0 [ 76.156534][ T5324] get_tree_bdev_flags+0x40e/0x4d0 [ 76.158895][ T5324] vfs_get_tree+0x92/0x2b0 [ 76.161068][ T5324] do_new_mount+0x302/0xa10 [ 76.163284][ T5324] __se_sys_mount+0x313/0x410 [ 76.165445][ T5324] do_syscall_64+0xfa/0xfa0 [ 76.167711][ T5324] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.170341][ T5324] [ 76.170341][ T5324] -> #0 (sb_internal#2){.+.+}-{0:0}: [ 76.173211][ T5324] validate_chain+0xb9b/0x2140 [ 76.175168][ T5324] __lock_acquire+0xab9/0xd20 [ 76.177226][ T5324] lock_acquire+0x120/0x360 [ 76.179291][ T5324] ocfs2_start_trans+0x26b/0x6d0 [ 76.181470][ T5324] ocfs2_setattr+0x969/0x1b40 [ 76.183550][ T5324] notify_change+0xc1a/0xf40 [ 76.185516][ T5324] ovl_workdir_create+0x722/0x8b0 [ 76.187897][ T5324] ovl_get_workdir+0x32b/0x17b0 [ 76.190234][ T5324] ovl_fill_super+0x154a/0x3da0 [ 76.192596][ T5324] get_tree_nodev+0xbb/0x150 [ 76.194881][ T5324] vfs_get_tree+0x92/0x2b0 [ 76.197229][ T5324] do_new_mount+0x302/0xa10 [ 76.199411][ T5324] __se_sys_mount+0x313/0x410 [ 76.201686][ T5324] do_syscall_64+0xfa/0xfa0 [ 76.203961][ T5324] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.206587][ T5324] [ 76.206587][ T5324] other info that might help us debug this: [ 76.206587][ T5324] [ 76.210803][ T5324] Chain exists of: [ 76.210803][ T5324] sb_internal#2 --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem [ 76.210803][ T5324] [ 76.216269][ T5324] Possible unsafe locking scenario: [ 76.216269][ T5324] [ 76.219375][ T5324] CPU0 CPU1 [ 76.221673][ T5324] ---- ---- [ 76.223906][ T5324] lock(&oi->ip_alloc_sem); [ 76.225944][ T5324] lock(&oi->ip_xattr_sem); [ 76.228679][ T5324] lock(&oi->ip_alloc_sem); [ 76.231324][ T5324] rlock(sb_internal#2); [ 76.233029][ T5324] [ 76.233029][ T5324] *** DEADLOCK *** [ 76.233029][ T5324] [ 76.236182][ T5324] 4 locks held by syz.0.0/5324: [ 76.238046][ T5324] #0: ffff8880122ee0e0 (&type->s_umount_key#50/1){+.+.}-{4:4}, at: alloc_super+0x1bb/0x930 [ 76.242063][ T5324] #1: ffff888035ce6420 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 76.245921][ T5324] #2: ffff8880436242c0 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: ovl_workdir_create+0x6a8/0x8b0 [ 76.250513][ T5324] #3: ffff888043623f60 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x95a/0x1b40 [ 76.254684][ T5324] [ 76.254684][ T5324] stack backtrace: [ 76.257245][ T5324] CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.257261][ T5324] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 76.257269][ T5324] Call Trace: [ 76.257277][ T5324] [ 76.257283][ T5324] dump_stack_lvl+0x189/0x250 [ 76.257304][ T5324] ? __pfx_dump_stack_lvl+0x10/0x10 [ 76.257319][ T5324] ? __pfx__printk+0x10/0x10 [ 76.257331][ T5324] ? print_lock_name+0xde/0x100 [ 76.257341][ T5324] print_circular_bug+0x2ee/0x310 [ 76.257357][ T5324] check_noncircular+0x134/0x160 [ 76.257372][ T5324] validate_chain+0xb9b/0x2140 [ 76.257386][ T5324] ? lockdep_unlock+0x89/0x120 [ 76.257405][ T5324] __lock_acquire+0xab9/0xd20 [ 76.257417][ T5324] ? ocfs2_setattr+0x969/0x1b40 [ 76.257432][ T5324] lock_acquire+0x120/0x360 [ 76.257442][ T5324] ? ocfs2_setattr+0x969/0x1b40 [ 76.257459][ T5324] ? do_raw_spin_unlock+0x4d/0x240 [ 76.257474][ T5324] ocfs2_start_trans+0x26b/0x6d0 [ 76.257486][ T5324] ? ocfs2_setattr+0x969/0x1b40 [ 76.257500][ T5324] ? __pfx_ocfs2_start_trans+0x10/0x10 [ 76.257511][ T5324] ? setattr_prepare+0x1e7/0xac0 [ 76.257525][ T5324] ocfs2_setattr+0x969/0x1b40 [ 76.257541][ T5324] ? __pfx_ocfs2_setattr+0x10/0x10 [ 76.257554][ T5324] ? ktime_get_coarse_real_ts64_mg+0x59/0x1e0 [ 76.257571][ T5324] ? seqcount_lockdep_reader_access+0x174/0x1c0 [ 76.257588][ T5324] ? __lock_acquire+0xab9/0xd20 [ 76.257599][ T5324] ? ktime_get_coarse_real_ts64_mg+0x1c5/0x1e0 [ 76.257617][ T5324] ? current_time+0x222/0x370 [ 76.257633][ T5324] ? evm_inode_setattr+0x1bd/0x7d0 [ 76.257680][ T5324] ? __pfx_current_time+0x10/0x10 [ 76.257691][ T5324] ? try_break_deleg+0x79/0x130 [ 76.257702][ T5324] ? __pfx_ocfs2_setattr+0x10/0x10 [ 76.257717][ T5324] notify_change+0xc1a/0xf40 [ 76.257731][ T5324] ovl_workdir_create+0x722/0x8b0 [ 76.257747][ T5324] ? __pfx_ovl_workdir_create+0x10/0x10 [ 76.257762][ T5324] ? mnt_get_write_access+0x213/0x280 [ 76.257776][ T5324] ovl_get_workdir+0x32b/0x17b0 [ 76.257791][ T5324] ? __pfx_ovl_get_workdir+0x10/0x10 [ 76.257803][ T5324] ? __lock_acquire+0xab9/0xd20 [ 76.257814][ T5324] ? do_raw_spin_lock+0x121/0x290 [ 76.257829][ T5324] ? do_raw_spin_unlock+0x4d/0x240 [ 76.257845][ T5324] ? _raw_spin_unlock+0x28/0x50 [ 76.257859][ T5324] ? ovl_inuse_trylock+0xae/0xf0 [ 76.257872][ T5324] ovl_fill_super+0x154a/0x3da0 [ 76.257888][ T5324] ? rcu_is_watching+0x15/0xb0 [ 76.257902][ T5324] ? trace_contention_end+0x39/0x120 [ 76.257919][ T5324] ? __pfx_ovl_fill_super+0x10/0x10 [ 76.257930][ T5324] ? __mutex_unlock_slowpath+0x1a1/0x740 [ 76.257947][ T5324] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 76.257963][ T5324] ? __raw_spin_lock_init+0x45/0x100 [ 76.257980][ T5324] ? sget_fc+0x962/0xa40 [ 76.257992][ T5324] ? __pfx_set_anon_super_fc+0x10/0x10 [ 76.258004][ T5324] ? __pfx_ovl_fill_super+0x10/0x10 [ 76.258015][ T5324] get_tree_nodev+0xbb/0x150 [ 76.258028][ T5324] vfs_get_tree+0x92/0x2b0 [ 76.258042][ T5324] do_new_mount+0x302/0xa10 [ 76.258056][ T5324] ? apparmor_capable+0x137/0x1b0 [ 76.258074][ T5324] ? __pfx_do_new_mount+0x10/0x10 [ 76.258089][ T5324] ? ns_capable+0x8a/0xf0 [ 76.258100][ T5324] ? path_mount+0x61c/0xfe0 [ 76.258114][ T5324] ? kmem_cache_free+0x19b/0x690 [ 76.258130][ T5324] __se_sys_mount+0x313/0x410 [ 76.258145][ T5324] ? __pfx___se_sys_mount+0x10/0x10 [ 76.258160][ T5324] ? do_syscall_64+0xbe/0xfa0 [ 76.258175][ T5324] ? __x64_sys_mount+0x20/0xc0 [ 76.258189][ T5324] do_syscall_64+0xfa/0xfa0 [ 76.258203][ T5324] ? lockdep_hardirqs_on+0x9c/0x150 [ 76.258218][ T5324] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.258228][ T5324] ? clear_bhb_loop+0x60/0xb0 [ 76.258240][ T5324] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.258250][ T5324] RIP: 0033:0x7f30ae98f6c9 [ 76.258263][ T5324] 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 [ 76.258274][ T5324] RSP: 002b:00007f30aadf5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 76.258286][ T5324] RAX: ffffffffffffffda RBX: 00007f30aebe5fa0 RCX: 00007f30ae98f6c9 [ 76.258295][ T5324] RDX: 0000200000000340 RSI: 00002000000000c0 RDI: 0000000000000000 [ 76.258303][ T5324] RBP: 00007f30aea11f91 R08: 0000200000000080 R09: 0000000000000000 [ 76.258310][ T5324] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.258317][ T5324] R13: 00007f30aebe6038 R14: 00007f30aebe5fa0 R15: 00007ffdd101b958 [ 76.258328][ T5324] [ 76.498463][ T1315] ieee802154 phy0 wpan0: encryption failed: -22 [ 76.501081][ T1315] ieee802154 phy1 wpan1: encryption failed: -22 [ 76.504928][ T5324] overlayfs: upper fs does not support tmpfile. [ 76.508118][ T5324] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 76.521775][ T5324] overlayfs: upper fs missing required features.