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r0 = creat(&(0x7f0000000100)='./bus\x00', 0x0) r1 = syz_open_dev$sndctrl(&(0x7f0000000440), 0x0, 0x0) ioctl$SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE(r1, 0x40045532, &(0x7f0000000040)) openat$audio(0xffffffffffffff9c, &(0x7f0000000400), 0x40000000040201, 0x0) r2 = syz_open_dev$sndpcmp(&(0x7f0000000200), 0x0, 0xa2c65) openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x0) r3 = inotify_init1(0x0) inotify_add_watch(r3, &(0x7f00000019c0)='./file0\x00', 0x20) syz_mount_image$fuse(0x0, &(0x7f0000000180)='./file2\x00', 0x0, 0x0, 0x0, 0x0, 0x0) mount$overlay(0x0, &(0x7f0000000080)='./file0\x00', &(0x7f0000000000), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './file0'}}, {@lowerdir={'lowerdir', 0x3d, '.'}}, {@upperdir={'upperdir', 0x3d, './file2'}}], [], 0x2c}) mprotect(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1) ioctl$SNDRV_PCM_IOCTL_SYNC_PTR(r2, 0xc0884123, &(0x7f0000000340)={0x7, "fe1171a5a65ad3887c2c95c3cc5568763c0ad9a7b9e6b8e33975b4e472001e41a3d253a9d16a0eac6fc3dfe266a25de589f859ce34fe9be1895e25271fc6521a", {0x2, 0x3}}) fallocate(r0, 0x0, 0x0, 0x1000f4) r4 = open(&(0x7f00000005c0)='./bus\x00', 0x64842, 0x0) r5 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x105042, 0x1ff) ioctl$FICLONE(r5, 0x40049409, r4) syz_mount_image$ocfs2(&(0x7f0000004440), &(0x7f0000000040)='./bus\x00', 0x8c0, &(0x7f0000000180)=ANY=[@ANYBLOB='acl,heartbeat=none,resv_level=0000000000\x00000000002,coherency=full,data=writeback,localalloc=00000000000000000001,acl,noacl,localalloc=00000000000000000000,\x00'], 0x1, 0x443b, 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(async) creat(&(0x7f0000000100)='./bus\x00', 0x0) (async) syz_open_dev$sndctrl(&(0x7f0000000440), 0x0, 0x0) (async) ioctl$SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE(r1, 0x40045532, &(0x7f0000000040)) (async) openat$audio(0xffffffffffffff9c, &(0x7f0000000400), 0x40000000040201, 0x0) (async) syz_open_dev$sndpcmp(&(0x7f0000000200), 0x0, 0xa2c65) (async) openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) (async) mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x0) (async) inotify_init1(0x0) (async) inotify_add_watch(r3, &(0x7f00000019c0)='./file0\x00', 0x20) (async) syz_mount_image$fuse(0x0, &(0x7f0000000180)='./file2\x00', 0x0, 0x0, 0x0, 0x0, 0x0) (async) mount$overlay(0x0, &(0x7f0000000080)='./file0\x00', &(0x7f0000000000), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './file0'}}, {@lowerdir={'lowerdir', 0x3d, '.'}}, {@upperdir={'upperdir', 0x3d, './file2'}}], [], 0x2c}) (async) mprotect(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1) (async) ioctl$SNDRV_PCM_IOCTL_SYNC_PTR(r2, 0xc0884123, &(0x7f0000000340)={0x7, "fe1171a5a65ad3887c2c95c3cc5568763c0ad9a7b9e6b8e33975b4e472001e41a3d253a9d16a0eac6fc3dfe266a25de589f859ce34fe9be1895e25271fc6521a", {0x2, 0x3}}) (async) fallocate(r0, 0x0, 0x0, 0x1000f4) (async) open(&(0x7f00000005c0)='./bus\x00', 0x64842, 0x0) (async) openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x105042, 0x1ff) (async) ioctl$FICLONE(r5, 0x40049409, r4) (async) [ 85.836775][ T4671] Bluetooth: hci0: command tx timeout [ 86.203051][ T5332] loop0: detected capacity change from 0 to 32768 [ 86.211769][ T5332] ======================================================= [ 86.211769][ T5332] WARNING: The mand mount option has been deprecated and [ 86.211769][ T5332] and is ignored by this kernel. Remove the mand [ 86.211769][ T5332] option from the mount to silence this warning. [ 86.211769][ T5332] ======================================================= [ 86.285631][ T5332] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 86.324239][ T5332] [ 86.325368][ T5332] ====================================================== [ 86.328490][ T5332] WARNING: possible circular locking dependency detected [ 86.331596][ T5332] syzkaller #0 Not tainted [ 86.333460][ T5332] ------------------------------------------------------ [ 86.336522][ T5332] syz.0.0/5332 is trying to acquire lock: [ 86.338760][ T5332] ffff888041888610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_setattr+0x969/0x1b40 [ 86.342099][ T5332] [ 86.342099][ T5332] but task is already holding lock: [ 86.345043][ T5332] ffff8880514e6a20 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x95a/0x1b40 [ 86.349019][ T5332] [ 86.349019][ T5332] which lock already depends on the new lock. [ 86.349019][ T5332] [ 86.353399][ T5332] [ 86.353399][ T5332] the existing dependency chain (in reverse order) is: [ 86.357225][ T5332] [ 86.357225][ T5332] -> #4 (&oi->ip_alloc_sem){+.+.}-{4:4}: [ 86.360674][ T5332] lock_acquire+0x120/0x360 [ 86.362957][ T5332] down_write+0x96/0x1f0 [ 86.365260][ T5332] ocfs2_try_remove_refcount_tree+0xb6/0x320 [ 86.368124][ T5332] ocfs2_xattr_set+0x595/0x11f0 [ 86.370382][ T5332] ocfs2_set_acl+0x701/0x7b0 [ 86.372533][ T5332] ocfs2_iop_set_acl+0x1aa/0x2a0 [ 86.374839][ T5332] vfs_remove_acl+0x48c/0x700 [ 86.377056][ T5332] ovl_workdir_create+0x594/0x8b0 [ 86.379425][ T5332] ovl_get_workdir+0x32b/0x17b0 [ 86.381807][ T5332] ovl_fill_super+0x154a/0x3da0 [ 86.384284][ T5332] get_tree_nodev+0xbb/0x150 [ 86.386568][ T5332] vfs_get_tree+0x92/0x2b0 [ 86.388802][ T5332] do_new_mount+0x302/0xa10 [ 86.391037][ T5332] __se_sys_mount+0x313/0x410 [ 86.393360][ T5332] do_syscall_64+0xfa/0xfa0 [ 86.395594][ T5332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.398326][ T5332] [ 86.398326][ T5332] -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: [ 86.401697][ T5332] lock_acquire+0x120/0x360 [ 86.403829][ T5332] down_read+0x46/0x2e0 [ 86.405746][ T5332] ocfs2_init_acl+0x2f9/0x720 [ 86.408014][ T5332] ocfs2_mknod+0x1321/0x2050 [ 86.410361][ T5332] ocfs2_create+0x1a5/0x440 [ 86.412406][ T5332] path_openat+0x14f4/0x3830 [ 86.414692][ T5332] do_filp_open+0x1fa/0x410 [ 86.416830][ T5332] do_sys_openat2+0x121/0x1c0 [ 86.419058][ T5332] __x64_sys_creat+0x8f/0xc0 [ 86.421258][ T5332] do_syscall_64+0xfa/0xfa0 [ 86.423527][ T5332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.426919][ T5332] [ 86.426919][ T5332] -> #2 (jbd2_handle){.+.+}-{0:0}: [ 86.431105][ T5332] lock_acquire+0x120/0x360 [ 86.434042][ T5332] start_this_handle+0x1fa7/0x21c0 [ 86.436497][ T5332] jbd2__journal_start+0x2c1/0x5b0 [ 86.438687][ T5332] jbd2_journal_start+0x2a/0x40 [ 86.441019][ T5332] ocfs2_start_trans+0x376/0x6d0 [ 86.443354][ T5332] ocfs2_mknod+0xe93/0x2050 [ 86.445323][ T5332] ocfs2_create+0x1a5/0x440 [ 86.447439][ T5332] path_openat+0x14f4/0x3830 [ 86.449643][ T5332] do_filp_open+0x1fa/0x410 [ 86.451746][ T5332] do_sys_openat2+0x121/0x1c0 [ 86.454225][ T5332] __x64_sys_creat+0x8f/0xc0 [ 86.456472][ T5332] do_syscall_64+0xfa/0xfa0 [ 86.458617][ T5332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.461349][ T5332] [ 86.461349][ T5332] -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 86.464970][ T5332] lock_acquire+0x120/0x360 [ 86.467063][ T5332] down_read+0x46/0x2e0 [ 86.469086][ T5332] ocfs2_start_trans+0x36a/0x6d0 [ 86.471511][ T5332] ocfs2_mknod+0xe93/0x2050 [ 86.474199][ T5332] ocfs2_create+0x1a5/0x440 [ 86.477241][ T5332] path_openat+0x14f4/0x3830 [ 86.480301][ T5332] do_filp_open+0x1fa/0x410 [ 86.483165][ T5332] do_sys_openat2+0x121/0x1c0 [ 86.485986][ T5332] __x64_sys_creat+0x8f/0xc0 [ 86.488761][ T5332] do_syscall_64+0xfa/0xfa0 [ 86.491032][ T5332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.494122][ T5332] [ 86.494122][ T5332] -> #0 (sb_internal#2){.+.+}-{0:0}: [ 86.497789][ T5332] validate_chain+0xb9b/0x2140 [ 86.500060][ T5332] __lock_acquire+0xab9/0xd20 [ 86.502285][ T5332] lock_acquire+0x120/0x360 [ 86.504404][ T5332] ocfs2_start_trans+0x26b/0x6d0 [ 86.506460][ T5332] ocfs2_setattr+0x969/0x1b40 [ 86.508665][ T5332] notify_change+0xc1a/0xf40 [ 86.510662][ T5332] ovl_workdir_create+0x722/0x8b0 [ 86.512878][ T5332] ovl_get_workdir+0x32b/0x17b0 [ 86.514972][ T5332] ovl_fill_super+0x154a/0x3da0 [ 86.517090][ T5332] get_tree_nodev+0xbb/0x150 [ 86.518999][ T5332] vfs_get_tree+0x92/0x2b0 [ 86.521184][ T5332] do_new_mount+0x302/0xa10 [ 86.523499][ T5332] __se_sys_mount+0x313/0x410 [ 86.525913][ T5332] do_syscall_64+0xfa/0xfa0 [ 86.528109][ T5332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.530787][ T5332] [ 86.530787][ T5332] other info that might help us debug this: [ 86.530787][ T5332] [ 86.536714][ T5332] Chain exists of: [ 86.536714][ T5332] sb_internal#2 --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem [ 86.536714][ T5332] [ 86.541977][ T5332] Possible unsafe locking scenario: [ 86.541977][ T5332] [ 86.545147][ T5332] CPU0 CPU1 [ 86.547341][ T5332] ---- ---- [ 86.549516][ T5332] lock(&oi->ip_alloc_sem); [ 86.551427][ T5332] lock(&oi->ip_xattr_sem); [ 86.554272][ T5332] lock(&oi->ip_alloc_sem); [ 86.557140][ T5332] rlock(sb_internal#2); [ 86.558908][ T5332] [ 86.558908][ T5332] *** DEADLOCK *** [ 86.558908][ T5332] [ 86.562488][ T5332] 4 locks held by syz.0.0/5332: [ 86.564751][ T5332] #0: ffff888042b840e0 (&type->s_umount_key#50/1){+.+.}-{4:4}, at: alloc_super+0x1bb/0x930 [ 86.569271][ T5332] #1: ffff888041888420 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 86.572973][ T5332] #2: ffff8880514e6d80 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: ovl_workdir_create+0x6a8/0x8b0 [ 86.577312][ T5332] #3: ffff8880514e6a20 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x95a/0x1b40 [ 86.581190][ T5332] [ 86.581190][ T5332] stack backtrace: [ 86.583743][ T5332] CPU: 0 UID: 0 PID: 5332 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 86.583757][ T5332] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 86.583764][ T5332] Call Trace: [ 86.583772][ T5332] [ 86.583778][ T5332] dump_stack_lvl+0x189/0x250 [ 86.583797][ T5332] ? __pfx_dump_stack_lvl+0x10/0x10 [ 86.583812][ T5332] ? __pfx__printk+0x10/0x10 [ 86.583823][ T5332] ? print_lock_name+0xde/0x100 [ 86.583834][ T5332] print_circular_bug+0x2ee/0x310 [ 86.583849][ T5332] check_noncircular+0x134/0x160 [ 86.583864][ T5332] validate_chain+0xb9b/0x2140 [ 86.583876][ T5332] ? lockdep_unlock+0x89/0x120 [ 86.583897][ T5332] __lock_acquire+0xab9/0xd20 [ 86.583908][ T5332] ? ocfs2_setattr+0x969/0x1b40 [ 86.583921][ T5332] lock_acquire+0x120/0x360 [ 86.583931][ T5332] ? ocfs2_setattr+0x969/0x1b40 [ 86.583945][ T5332] ? do_raw_spin_unlock+0x4d/0x240 [ 86.583960][ T5332] ocfs2_start_trans+0x26b/0x6d0 [ 86.583971][ T5332] ? ocfs2_setattr+0x969/0x1b40 [ 86.583984][ T5332] ? __pfx_ocfs2_start_trans+0x10/0x10 [ 86.583994][ T5332] ? setattr_prepare+0x1e7/0xac0 [ 86.584016][ T5332] ocfs2_setattr+0x969/0x1b40 [ 86.584032][ T5332] ? __pfx_ocfs2_setattr+0x10/0x10 [ 86.584045][ T5332] ? ktime_get_coarse_real_ts64_mg+0x59/0x1e0 [ 86.584061][ T5332] ? seqcount_lockdep_reader_access+0x174/0x1c0 [ 86.584076][ T5332] ? __lock_acquire+0xab9/0xd20 [ 86.584087][ T5332] ? ktime_get_coarse_real_ts64_mg+0x1c5/0x1e0 [ 86.584103][ T5332] ? current_time+0x222/0x370 [ 86.584112][ T5332] ? evm_inode_setattr+0x1bd/0x7d0 [ 86.584128][ T5332] ? __pfx_current_time+0x10/0x10 [ 86.584138][ T5332] ? try_break_deleg+0x79/0x130 [ 86.584148][ T5332] ? __pfx_ocfs2_setattr+0x10/0x10 [ 86.584162][ T5332] notify_change+0xc1a/0xf40 [ 86.584176][ T5332] ovl_workdir_create+0x722/0x8b0 [ 86.584191][ T5332] ? __pfx_ovl_workdir_create+0x10/0x10 [ 86.584206][ T5332] ? mnt_get_write_access+0x213/0x280 [ 86.584218][ T5332] ovl_get_workdir+0x32b/0x17b0 [ 86.584232][ T5332] ? __pfx_ovl_get_workdir+0x10/0x10 [ 86.584244][ T5332] ? __lock_acquire+0xab9/0xd20 [ 86.584255][ T5332] ? do_raw_spin_lock+0x121/0x290 [ 86.584271][ T5332] ? do_raw_spin_unlock+0x4d/0x240 [ 86.584285][ T5332] ? _raw_spin_unlock+0x28/0x50 [ 86.584295][ T5332] ? ovl_inuse_trylock+0xae/0xf0 [ 86.584306][ T5332] ovl_fill_super+0x154a/0x3da0 [ 86.584320][ T5332] ? rcu_is_watching+0x15/0xb0 [ 86.584332][ T5332] ? trace_contention_end+0x39/0x120 [ 86.584347][ T5332] ? __pfx_ovl_fill_super+0x10/0x10 [ 86.584357][ T5332] ? __mutex_unlock_slowpath+0x1a1/0x740 [ 86.584372][ T5332] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 86.584386][ T5332] ? __raw_spin_lock_init+0x45/0x100 [ 86.584400][ T5332] ? sget_fc+0x962/0xa40 [ 86.584412][ T5332] ? __pfx_set_anon_super_fc+0x10/0x10 [ 86.584422][ T5332] ? __pfx_ovl_fill_super+0x10/0x10 [ 86.584431][ T5332] get_tree_nodev+0xbb/0x150 [ 86.584442][ T5332] vfs_get_tree+0x92/0x2b0 [ 86.584456][ T5332] do_new_mount+0x302/0xa10 [ 86.584468][ T5332] ? apparmor_capable+0x137/0x1b0 [ 86.584483][ T5332] ? __pfx_do_new_mount+0x10/0x10 [ 86.584496][ T5332] ? ns_capable+0x8a/0xf0 [ 86.584507][ T5332] ? path_mount+0x61c/0xfe0 [ 86.584520][ T5332] ? kmem_cache_free+0x19b/0x690 [ 86.584534][ T5332] __se_sys_mount+0x313/0x410 [ 86.584550][ T5332] ? __pfx___se_sys_mount+0x10/0x10 [ 86.584562][ T5332] ? do_syscall_64+0xbe/0xfa0 [ 86.584575][ T5332] ? __x64_sys_mount+0x20/0xc0 [ 86.584587][ T5332] do_syscall_64+0xfa/0xfa0 [ 86.584599][ T5332] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.584610][ T5332] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.584621][ T5332] ? clear_bhb_loop+0x60/0xb0 [ 86.584632][ T5332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.584642][ T5332] RIP: 0033:0x7f5c6ef8efc9 [ 86.584654][ T5332] 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 [ 86.584663][ T5332] RSP: 002b:00007f5c6fd84038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 86.584674][ T5332] RAX: ffffffffffffffda RBX: 00007f5c6f1e5fa0 RCX: 00007f5c6ef8efc9 [ 86.584683][ T5332] RDX: 0000200000000000 RSI: 0000200000000080 RDI: 0000000000000000 [ 86.584689][ T5332] RBP: 00007f5c6f011f91 R08: 0000200000000140 R09: 0000000000000000 [ 86.584695][ T5332] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.584701][ T5332] R13: 00007f5c6f1e6038 R14: 00007f5c6f1e5fa0 R15: 00007ffde758a928 [ 86.584710][ T5332] [ 86.780586][ T10] cfg80211: failed to load regulatory.db [ 86.803021][ T5332] overlayfs: upper fs does not support tmpfile. [ 86.805892][ T5332] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 86.808919][ T5332] OCFS2: ERROR (device loop0): int ocfs2_validate_gd_self(struct super_block *, struct buffer_head *, int): Group descriptor #0 has bad signature  [ 86.815837][ T5332] On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. [ 86.819756][ T5332] OCFS2: File system is now read-only. [ 86.822307][ T5332] (syz.0.0,5332,0):ocfs2_search_chain:1817 ERROR: status = -30 [ 86.825357][ T5332] (syz.0.0,5332,0):ocfs2_search_chain:1940 ERROR: status = -30 [ 86.828762][ T5332] (syz.0.0,5332,0):ocfs2_claim_suballoc_bits:2010 ERROR: status = -30 [ 86.832932][ T5332] (syz.0.0,5332,0):ocfs2_claim_suballoc_bits:2063 ERROR: status = -30 [ 86.836322][ T5332] (syz.0.0,5332,0):ocfs2_claim_metadata:2088 ERROR: status = -30 [ 86.839776][ T5332] (syz.0.0,5332,0):ocfs2_claim_metadata:2101 ERROR: status = -30 [ 86.843507][ T5332] (syz.0.0,5332,0):ocfs2_create_xattr_block:2887 ERROR: status = -30 [ 86.847247][ T5332] (syz.0.0,5332,0):ocfs2_xattr_block_set:2968 ERROR: status = -30 [ 86.851151][ T5332] overlayfs: failed to set xattr on upper [ 86.853571][ T5332] overlayfs: ...falling back to redirect_dir=nofollow. [ 86.856623][ T5332] overlayfs: ...falling back to index=off. [ 86.859277][ T5332] overlayfs: ...falling back to uuid=null. [ 86.862207][ T5332] overlayfs: upper fs missing required features.