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) [ 68.706928][ T5300] Bluetooth: hci0: command tx timeout [ 69.206963][ T5321] loop0: detected capacity change from 0 to 32768 [ 69.235108][ T5321] (syz.0.0,5321,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. [ 69.259543][ T5321] (syz.0.0,5321,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. [ 69.300486][ T5321] JBD2: Ignoring recovery information on journal [ 69.372492][ T5321] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 69.442798][ T5321] [ 69.443723][ T5321] ====================================================== [ 69.446349][ T5321] WARNING: possible circular locking dependency detected [ 69.449089][ T5321] syzkaller #0 Not tainted [ 69.450932][ T5321] ------------------------------------------------------ [ 69.453496][ T5321] syz.0.0/5321 is trying to acquire lock: [ 69.455738][ T5321] ffff88801eb34610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_setattr+0x969/0x1b40 [ 69.459295][ T5321] [ 69.459295][ T5321] but task is already holding lock: [ 69.461998][ T5321] ffff888042e03f60 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x95a/0x1b40 [ 69.466814][ T5321] [ 69.466814][ T5321] which lock already depends on the new lock. [ 69.466814][ T5321] [ 69.471318][ T5321] [ 69.471318][ T5321] the existing dependency chain (in reverse order) is: [ 69.474634][ T5321] [ 69.474634][ T5321] -> #4 (&oi->ip_alloc_sem){+.+.}-{4:4}: [ 69.477918][ T5321] lock_acquire+0x120/0x360 [ 69.480111][ T5321] down_write+0x96/0x1f0 [ 69.481961][ T5321] ocfs2_try_remove_refcount_tree+0xb6/0x320 [ 69.484663][ T5321] ocfs2_xattr_set+0x595/0x11f0 [ 69.486856][ T5321] ocfs2_set_acl+0x701/0x7b0 [ 69.488979][ T5321] ocfs2_iop_set_acl+0x1aa/0x2a0 [ 69.491277][ T5321] vfs_remove_acl+0x48c/0x700 [ 69.493352][ T5321] ovl_workdir_create+0x594/0x8b0 [ 69.495627][ T5321] ovl_get_workdir+0x32b/0x17b0 [ 69.497551][ T5321] ovl_fill_super+0x154a/0x3da0 [ 69.499547][ T5321] get_tree_nodev+0xbb/0x150 [ 69.501725][ T5321] vfs_get_tree+0x92/0x2b0 [ 69.503705][ T5321] do_new_mount+0x302/0xa10 [ 69.505901][ T5321] __se_sys_mount+0x313/0x410 [ 69.508190][ T5321] do_syscall_64+0xfa/0xfa0 [ 69.510293][ T5321] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.513006][ T5321] [ 69.513006][ T5321] -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: [ 69.516361][ T5321] lock_acquire+0x120/0x360 [ 69.518374][ T5321] down_read+0x46/0x2e0 [ 69.520406][ T5321] ocfs2_init_acl+0x2f9/0x720 [ 69.522582][ T5321] ocfs2_mknod+0x1321/0x2050 [ 69.524723][ T5321] ocfs2_mkdir+0x191/0x440 [ 69.526724][ T5321] vfs_mkdir+0x306/0x510 [ 69.528684][ T5321] do_mkdirat+0x247/0x590 [ 69.530567][ T5321] __x64_sys_mkdir+0x6c/0x80 [ 69.532676][ T5321] do_syscall_64+0xfa/0xfa0 [ 69.534853][ T5321] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.537518][ T5321] [ 69.537518][ T5321] -> #2 (jbd2_handle){++++}-{0:0}: [ 69.540509][ T5321] lock_acquire+0x120/0x360 [ 69.542649][ T5321] start_this_handle+0x1fa7/0x21c0 [ 69.545084][ T5321] jbd2__journal_start+0x2c1/0x5b0 [ 69.547383][ T5321] jbd2_journal_start+0x2a/0x40 [ 69.549552][ T5321] ocfs2_start_trans+0x376/0x6d0 [ 69.551833][ T5321] ocfs2_modify_bh+0xe8/0x470 [ 69.554160][ T5321] ocfs2_local_read_info+0x1465/0x17e0 [ 69.556800][ T5321] dquot_load_quota_sb+0x791/0xbd0 [ 69.559161][ T5321] dquot_load_quota_inode+0x2e1/0x5d0 [ 69.561631][ T5321] ocfs2_enable_quotas+0x1c6/0x450 [ 69.564125][ T5321] ocfs2_fill_super+0x50fe/0x63c0 [ 69.566346][ T5321] get_tree_bdev_flags+0x40e/0x4d0 [ 69.568797][ T5321] vfs_get_tree+0x92/0x2b0 [ 69.571038][ T5321] do_new_mount+0x302/0xa10 [ 69.573188][ T5321] __se_sys_mount+0x313/0x410 [ 69.575478][ T5321] do_syscall_64+0xfa/0xfa0 [ 69.577671][ T5321] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.580504][ T5321] [ 69.580504][ T5321] -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 69.584201][ T5321] lock_acquire+0x120/0x360 [ 69.586411][ T5321] down_read+0x46/0x2e0 [ 69.588481][ T5321] ocfs2_start_trans+0x36a/0x6d0 [ 69.590894][ T5321] ocfs2_modify_bh+0xe8/0x470 [ 69.593188][ T5321] ocfs2_local_read_info+0x1465/0x17e0 [ 69.595831][ T5321] dquot_load_quota_sb+0x791/0xbd0 [ 69.598257][ T5321] dquot_load_quota_inode+0x2e1/0x5d0 [ 69.600732][ T5321] ocfs2_enable_quotas+0x1c6/0x450 [ 69.603190][ T5321] ocfs2_fill_super+0x50fe/0x63c0 [ 69.605532][ T5321] get_tree_bdev_flags+0x40e/0x4d0 [ 69.607935][ T5321] vfs_get_tree+0x92/0x2b0 [ 69.610011][ T5321] do_new_mount+0x302/0xa10 [ 69.612215][ T5321] __se_sys_mount+0x313/0x410 [ 69.614444][ T5321] do_syscall_64+0xfa/0xfa0 [ 69.616736][ T5321] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.619445][ T5321] [ 69.619445][ T5321] -> #0 (sb_internal#2){.+.+}-{0:0}: [ 69.622651][ T5321] validate_chain+0xb9b/0x2140 [ 69.625060][ T5321] __lock_acquire+0xab9/0xd20 [ 69.627290][ T5321] lock_acquire+0x120/0x360 [ 69.629474][ T5321] ocfs2_start_trans+0x26b/0x6d0 [ 69.631698][ T5321] ocfs2_setattr+0x969/0x1b40 [ 69.634101][ T5321] notify_change+0xc1a/0xf40 [ 69.636228][ T5321] ovl_workdir_create+0x722/0x8b0 [ 69.638462][ T5321] ovl_get_workdir+0x32b/0x17b0 [ 69.640724][ T5321] ovl_fill_super+0x154a/0x3da0 [ 69.642957][ T5321] get_tree_nodev+0xbb/0x150 [ 69.645396][ T5321] vfs_get_tree+0x92/0x2b0 [ 69.648095][ T5321] do_new_mount+0x302/0xa10 [ 69.650280][ T5321] __se_sys_mount+0x313/0x410 [ 69.652502][ T5321] do_syscall_64+0xfa/0xfa0 [ 69.654733][ T5321] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.657592][ T5321] [ 69.657592][ T5321] other info that might help us debug this: [ 69.657592][ T5321] [ 69.661910][ T5321] Chain exists of: [ 69.661910][ T5321] sb_internal#2 --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem [ 69.661910][ T5321] [ 69.667106][ T5321] Possible unsafe locking scenario: [ 69.667106][ T5321] [ 69.670127][ T5321] CPU0 CPU1 [ 69.672414][ T5321] ---- ---- [ 69.674694][ T5321] lock(&oi->ip_alloc_sem); [ 69.676810][ T5321] lock(&oi->ip_xattr_sem); [ 69.679770][ T5321] lock(&oi->ip_alloc_sem); [ 69.682803][ T5321] rlock(sb_internal#2); [ 69.684691][ T5321] [ 69.684691][ T5321] *** DEADLOCK *** [ 69.684691][ T5321] [ 69.687986][ T5321] 4 locks held by syz.0.0/5321: [ 69.690024][ T5321] #0: ffff88803316e0e0 (&type->s_umount_key#51/1){+.+.}-{4:4}, at: alloc_super+0x1bb/0x930 [ 69.694423][ T5321] #1: ffff88801eb34420 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 69.698318][ T5321] #2: ffff888042e042c0 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: ovl_workdir_create+0x6a8/0x8b0 [ 69.702839][ T5321] #3: ffff888042e03f60 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x95a/0x1b40 [ 69.706959][ T5321] [ 69.706959][ T5321] stack backtrace: [ 69.709774][ T5321] CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 69.709791][ T5321] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 69.709799][ T5321] Call Trace: [ 69.709807][ T5321] [ 69.709813][ T5321] dump_stack_lvl+0x189/0x250 [ 69.709838][ T5321] ? __pfx_dump_stack_lvl+0x10/0x10 [ 69.709854][ T5321] ? __pfx__printk+0x10/0x10 [ 69.709866][ T5321] ? print_lock_name+0xde/0x100 [ 69.709877][ T5321] print_circular_bug+0x2ee/0x310 [ 69.709894][ T5321] check_noncircular+0x134/0x160 [ 69.709910][ T5321] validate_chain+0xb9b/0x2140 [ 69.709925][ T5321] ? lockdep_unlock+0x89/0x120 [ 69.709946][ T5321] __lock_acquire+0xab9/0xd20 [ 69.709959][ T5321] ? ocfs2_setattr+0x969/0x1b40 [ 69.709975][ T5321] lock_acquire+0x120/0x360 [ 69.709986][ T5321] ? ocfs2_setattr+0x969/0x1b40 [ 69.710004][ T5321] ? do_raw_spin_unlock+0x4d/0x240 [ 69.710032][ T5321] ocfs2_start_trans+0x26b/0x6d0 [ 69.710048][ T5321] ? ocfs2_setattr+0x969/0x1b40 [ 69.710067][ T5321] ? __pfx_ocfs2_start_trans+0x10/0x10 [ 69.710079][ T5321] ? setattr_prepare+0x1e7/0xac0 [ 69.710096][ T5321] ocfs2_setattr+0x969/0x1b40 [ 69.710114][ T5321] ? __pfx_ocfs2_setattr+0x10/0x10 [ 69.710127][ T5321] ? ktime_get_coarse_real_ts64_mg+0x59/0x1e0 [ 69.710143][ T5321] ? seqcount_lockdep_reader_access+0x174/0x1c0 [ 69.710158][ T5321] ? __lock_acquire+0xab9/0xd20 [ 69.710169][ T5321] ? ktime_get_coarse_real_ts64_mg+0x1c5/0x1e0 [ 69.710186][ T5321] ? current_time+0x222/0x370 [ 69.710194][ T5321] ? evm_inode_setattr+0x1bd/0x7d0 [ 69.710210][ T5321] ? __pfx_current_time+0x10/0x10 [ 69.710221][ T5321] ? try_break_deleg+0x79/0x130 [ 69.710232][ T5321] ? __pfx_ocfs2_setattr+0x10/0x10 [ 69.710246][ T5321] notify_change+0xc1a/0xf40 [ 69.710259][ T5321] ovl_workdir_create+0x722/0x8b0 [ 69.710276][ T5321] ? __pfx_ovl_workdir_create+0x10/0x10 [ 69.710291][ T5321] ? mnt_get_write_access+0x213/0x280 [ 69.710303][ T5321] ovl_get_workdir+0x32b/0x17b0 [ 69.710318][ T5321] ? __pfx_ovl_get_workdir+0x10/0x10 [ 69.710330][ T5321] ? __lock_acquire+0xab9/0xd20 [ 69.710342][ T5321] ? do_raw_spin_lock+0x121/0x290 [ 69.710358][ T5321] ? do_raw_spin_unlock+0x4d/0x240 [ 69.710372][ T5321] ? _raw_spin_unlock+0x28/0x50 [ 69.710386][ T5321] ? ovl_inuse_trylock+0xae/0xf0 [ 69.710398][ T5321] ovl_fill_super+0x154a/0x3da0 [ 69.710412][ T5321] ? rcu_is_watching+0x15/0xb0 [ 69.710437][ T5321] ? trace_contention_end+0x39/0x120 [ 69.710457][ T5321] ? __pfx_ovl_fill_super+0x10/0x10 [ 69.710469][ T5321] ? __mutex_unlock_slowpath+0x1a1/0x740 [ 69.710487][ T5321] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 69.710506][ T5321] ? __raw_spin_lock_init+0x45/0x100 [ 69.710524][ T5321] ? sget_fc+0x962/0xa40 [ 69.710536][ T5321] ? __pfx_set_anon_super_fc+0x10/0x10 [ 69.710548][ T5321] ? __pfx_ovl_fill_super+0x10/0x10 [ 69.710560][ T5321] get_tree_nodev+0xbb/0x150 [ 69.710574][ T5321] vfs_get_tree+0x92/0x2b0 [ 69.710587][ T5321] do_new_mount+0x302/0xa10 [ 69.710602][ T5321] ? apparmor_capable+0x137/0x1b0 [ 69.710619][ T5321] ? __pfx_do_new_mount+0x10/0x10 [ 69.710634][ T5321] ? ns_capable+0x8a/0xf0 [ 69.710645][ T5321] ? path_mount+0x61c/0xfe0 [ 69.710658][ T5321] ? kmem_cache_free+0x19b/0x690 [ 69.710674][ T5321] __se_sys_mount+0x313/0x410 [ 69.710690][ T5321] ? __pfx___se_sys_mount+0x10/0x10 [ 69.710705][ T5321] ? do_syscall_64+0xbe/0xfa0 [ 69.710720][ T5321] ? __x64_sys_mount+0x20/0xc0 [ 69.710734][ T5321] do_syscall_64+0xfa/0xfa0 [ 69.710748][ T5321] ? lockdep_hardirqs_on+0x9c/0x150 [ 69.710763][ T5321] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.710774][ T5321] ? clear_bhb_loop+0x60/0xb0 [ 69.710785][ T5321] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.710796][ T5321] RIP: 0033:0x7f53ce78f6c9 [ 69.710809][ T5321] 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 [ 69.710818][ T5321] RSP: 002b:00007f53cf6c0038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 69.710831][ T5321] RAX: ffffffffffffffda RBX: 00007f53ce9e5fa0 RCX: 00007f53ce78f6c9 [ 69.710840][ T5321] RDX: 0000200000000340 RSI: 00002000000000c0 RDI: 0000000000000000 [ 69.710848][ T5321] RBP: 00007f53ce811f91 R08: 0000200000000080 R09: 0000000000000000 [ 69.710856][ T5321] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 69.710864][ T5321] R13: 00007f53ce9e6038 R14: 00007f53ce9e5fa0 R15: 00007ffd4dcb7ea8 [ 69.710877][ T5321] [ 69.952252][ T5321] overlayfs: upper fs does not support tmpfile. [ 69.962186][ T5321] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 69.966188][ T5321] overlayfs: upper fs missing required features.