program: openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0) perf_event_open(&(0x7f00000000c0)={0x8, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000080)}}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0) syz_mount_image$ocfs2(&(0x7f0000004440), &(0x7f0000000000)='./file1\x00', 0x8c0, &(0x7f0000000180)={[{@acl}, {@heartbeat_none}, {@dir_resv_level={'dir_resv_level', 0x3d, 0x3}}, {@coherency_full}, {@coherency_full}, {@localflocks}, {@coherency_full}, {@journal_async_commit}]}, 0x1, 0x4421, 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syz_mount_image$fuse(0x0, &(0x7f0000000140)='./file0\x00', 0x0, 0x0, 0x0, 0x0, 0x0) r0 = open$dir(&(0x7f0000000240)='.\x00', 0x0, 0x0) renameat(r0, &(0x7f0000000400)='./file0\x00', r0, &(0x7f0000000440)='./file1\x00') mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000140)={'batadv0\x00', 0x0}) socketpair(0x1, 0x100000005, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r4, 0x8933, &(0x7f0000000700)={'batadv_slave_0\x00', 0x0}) sendmsg$BATADV_CMD_GET_NEIGHBORS(r1, &(0x7f0000004340)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000740)={0x24, r2, 0x331, 0x0, 0x0, {}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r3}, @BATADV_ATTR_HARD_IFINDEX={0x8, 0x6, r5}]}, 0x24}}, 0x0) mkdir(&(0x7f0000000300)='./bus\x00', 0x0) mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000900)={[{@upperdir={'upperdir', 0x3d, './file1'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}]}) [ 139.724943][ T5332] loop0: detected capacity change from 0 to 32768 [ 139.730353][ T5332] ======================================================= [ 139.730353][ T5332] WARNING: The mand mount option has been deprecated and [ 139.730353][ T5332] and is ignored by this kernel. Remove the mand [ 139.730353][ T5332] option from the mount to silence this warning. [ 139.730353][ T5332] ======================================================= [ 139.992010][ T5332] JBD2: Ignoring recovery information on journal [ 140.038204][ T5332] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 140.155200][ T45] Bluetooth: hci0: command tx timeout [ 140.172498][ T5332] [ 140.173668][ T5332] ====================================================== [ 140.176766][ T5332] WARNING: possible circular locking dependency detected [ 140.179693][ T5332] syzkaller #0 Not tainted [ 140.181598][ T5332] ------------------------------------------------------ [ 140.184526][ T5332] syz.0.0/5332 is trying to acquire lock: [ 140.187105][ T5332] ffff888040cf8610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_setattr+0xcc6/0x1cc0 [ 140.191386][ T5332] [ 140.191386][ T5332] but task is already holding lock: [ 140.194652][ T5332] ffff888047743f60 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0xcb7/0x1cc0 [ 140.198707][ T5332] [ 140.198707][ T5332] which lock already depends on the new lock. [ 140.198707][ T5332] [ 140.203751][ T5332] [ 140.203751][ T5332] the existing dependency chain (in reverse order) is: [ 140.207519][ T5332] [ 140.207519][ T5332] -> #3 (&oi->ip_alloc_sem){+.+.}-{4:4}: [ 140.210652][ T5332] down_write+0x96/0x200 [ 140.212772][ T5332] ocfs2_try_remove_refcount_tree+0xb6/0x340 [ 140.215407][ T5332] ocfs2_xattr_set+0x61a/0x13e0 [ 140.217559][ T5332] ocfs2_set_acl+0x701/0x7b0 [ 140.219504][ T5332] ocfs2_iop_set_acl+0x1b1/0x2b0 [ 140.221730][ T5332] vfs_remove_acl+0x542/0x830 [ 140.224247][ T5332] ovl_workdir_create+0x5b3/0x940 [ 140.226844][ T5332] ovl_fill_super+0x1a1e/0x5e60 [ 140.229028][ T5332] get_tree_nodev+0xbb/0x150 [ 140.231265][ T5332] vfs_get_tree+0x92/0x2a0 [ 140.233361][ T5332] do_new_mount+0x341/0xd30 [ 140.235412][ T5332] __se_sys_mount+0x31d/0x420 [ 140.237570][ T5332] do_syscall_64+0x14d/0xf80 [ 140.239815][ T5332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 140.242554][ T5332] [ 140.242554][ T5332] -> #2 (&oi->ip_xattr_sem){++++}-{4:4}: [ 140.245719][ T5332] down_read+0x47/0x2e0 [ 140.247672][ T5332] ocfs2_init_acl+0x2fd/0x7e0 [ 140.249928][ T5332] ocfs2_mknod+0x1679/0x2290 [ 140.252147][ T5332] ocfs2_mkdir+0x181/0x490 [ 140.254220][ T5332] vfs_mkdir+0x413/0x630 [ 140.256292][ T5332] filename_mkdirat+0x285/0x510 [ 140.258707][ T5332] __se_sys_mkdirat+0x35/0x150 [ 140.260964][ T5332] do_syscall_64+0x14d/0xf80 [ 140.263169][ T5332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 140.266157][ T5332] [ 140.266157][ T5332] -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 140.269882][ T5332] down_read+0x47/0x2e0 [ 140.271752][ T5332] ocfs2_start_trans+0x3ab/0x700 [ 140.274092][ T5332] ocfs2_mknod+0x1181/0x2290 [ 140.276234][ T5332] ocfs2_mkdir+0x181/0x490 [ 140.278382][ T5332] vfs_mkdir+0x413/0x630 [ 140.280419][ T5332] filename_mkdirat+0x285/0x510 [ 140.282783][ T5332] __se_sys_mkdirat+0x35/0x150 [ 140.285048][ T5332] do_syscall_64+0x14d/0xf80 [ 140.287190][ T5332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 140.289887][ T5332] [ 140.289887][ T5332] -> #0 (sb_internal#2){.+.+}-{0:0}: [ 140.293140][ T5332] __lock_acquire+0x15a5/0x2cf0 [ 140.295341][ T5332] lock_acquire+0xf0/0x2e0 [ 140.297378][ T5332] ocfs2_start_trans+0x2ac/0x700 [ 140.299687][ T5332] ocfs2_setattr+0xcc6/0x1cc0 [ 140.301832][ T5332] notify_change+0xc1a/0xf40 [ 140.303978][ T5332] ovl_workdir_create+0x716/0x940 [ 140.306303][ T5332] ovl_fill_super+0x1a1e/0x5e60 [ 140.308662][ T5332] get_tree_nodev+0xbb/0x150 [ 140.310814][ T5332] vfs_get_tree+0x92/0x2a0 [ 140.312950][ T5332] do_new_mount+0x341/0xd30 [ 140.315069][ T5332] __se_sys_mount+0x31d/0x420 [ 140.317249][ T5332] do_syscall_64+0x14d/0xf80 [ 140.319431][ T5332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 140.322214][ T5332] [ 140.322214][ T5332] other info that might help us debug this: [ 140.322214][ T5332] [ 140.326579][ T5332] Chain exists of: [ 140.326579][ T5332] sb_internal#2 --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem [ 140.326579][ T5332] [ 140.332187][ T5332] Possible unsafe locking scenario: [ 140.332187][ T5332] [ 140.335292][ T5332] CPU0 CPU1 [ 140.337827][ T5332] ---- ---- [ 140.340227][ T5332] lock(&oi->ip_alloc_sem); [ 140.342285][ T5332] lock(&oi->ip_xattr_sem); [ 140.345273][ T5332] lock(&oi->ip_alloc_sem); [ 140.348185][ T5332] rlock(sb_internal#2); [ 140.350005][ T5332] [ 140.350005][ T5332] *** DEADLOCK *** [ 140.350005][ T5332] [ 140.353516][ T5332] 4 locks held by syz.0.0/5332: [ 140.355394][ T5332] #0: ffff888038dae0e0 (&type->s_umount_key#52/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xab0 [ 140.359689][ T5332] #1: ffff888040cf8420 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 140.363641][ T5332] #2: ffff8880477442c0 (&sb->s_type->i_mutex_key#27){+.+.}-{4:4}, at: ovl_workdir_create+0x6b7/0x940 [ 140.368159][ T5332] #3: ffff888047743f60 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0xcb7/0x1cc0 [ 140.372114][ T5332] [ 140.372114][ T5332] stack backtrace: [ 140.374787][ T5332] CPU: 0 UID: 0 PID: 5332 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 140.374803][ T5332] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 140.374809][ T5332] Call Trace: [ 140.374815][ T5332] [ 140.374822][ T5332] dump_stack_lvl+0xe8/0x150 [ 140.374867][ T5332] print_circular_bug+0x2e1/0x300 [ 140.374885][ T5332] check_noncircular+0x12e/0x150 [ 140.374908][ T5332] __lock_acquire+0x15a5/0x2cf0 [ 140.374923][ T5332] ? lockdep_unlock+0x5d/0xd0 [ 140.374938][ T5332] lock_acquire+0xf0/0x2e0 [ 140.374949][ T5332] ? ocfs2_setattr+0xcc6/0x1cc0 [ 140.374967][ T5332] ocfs2_start_trans+0x2ac/0x700 [ 140.374978][ T5332] ? ocfs2_setattr+0xcc6/0x1cc0 [ 140.374994][ T5332] ? __pfx_ocfs2_start_trans+0x10/0x10 [ 140.375005][ T5332] ? do_raw_spin_unlock+0x4d/0x210 [ 140.375015][ T5332] ocfs2_setattr+0xcc6/0x1cc0 [ 140.375031][ T5332] ? __pfx_ocfs2_setattr+0x10/0x10 [ 140.375049][ T5332] ? seqcount_lockdep_reader_access+0xa9/0x100 [ 140.375076][ T5332] ? lockdep_hardirqs_on+0x7a/0x110 [ 140.375086][ T5332] ? ktime_get_coarse_real_ts64_mg+0x59/0x1e0 [ 140.375099][ T5332] ? seqcount_lockdep_reader_access+0xea/0x100 [ 140.375109][ T5332] ? ktime_get_coarse_real_ts64_mg+0x1c5/0x1e0 [ 140.375121][ T5332] ? current_time+0x22a/0x370 [ 140.375134][ T5332] ? evm_inode_setattr+0x1bd/0x7d0 [ 140.375211][ T5332] ? __pfx_current_time+0x10/0x10 [ 140.375226][ T5332] ? try_break_deleg+0x5b/0x180 [ 140.375241][ T5332] ? __pfx_ocfs2_setattr+0x10/0x10 [ 140.375257][ T5332] notify_change+0xc1a/0xf40 [ 140.375274][ T5332] ovl_workdir_create+0x716/0x940 [ 140.375290][ T5332] ? __pfx_ovl_workdir_create+0x10/0x10 [ 140.375304][ T5332] ? mnt_get_write_access+0x213/0x280 [ 140.375320][ T5332] ovl_fill_super+0x1a1e/0x5e60 [ 140.375335][ T5332] ? __lock_acquire+0x6b5/0x2cf0 [ 140.375348][ T5332] ? __pfx_ovl_fill_super+0x10/0x10 [ 140.375359][ T5332] ? xas_create+0x1902/0x1b90 [ 140.375368][ T5332] ? __mutex_trylock_common+0x158/0x260 [ 140.375383][ T5332] ? __pfx___mutex_trylock_common+0x10/0x10 [ 140.375397][ T5332] ? rcu_is_watching+0x15/0xb0 [ 140.375429][ T5332] ? trace_contention_end+0x3d/0x150 [ 140.375446][ T5332] ? shrinker_register+0x124/0x230 [ 140.375475][ T5332] ? __mutex_unlock_slowpath+0x1bd/0x7d0 [ 140.375487][ T5332] ? __pfx___mutex_lock+0x10/0x10 [ 140.375497][ T5332] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 140.375510][ T5332] ? __raw_spin_lock_init+0x45/0x100 [ 140.375522][ T5332] ? sget_fc+0x962/0xa40 [ 140.375534][ T5332] ? __pfx_set_anon_super_fc+0x10/0x10 [ 140.375546][ T5332] ? __pfx_ovl_fill_super+0x10/0x10 [ 140.375559][ T5332] get_tree_nodev+0xbb/0x150 [ 140.375571][ T5332] vfs_get_tree+0x92/0x2a0 [ 140.375585][ T5332] do_new_mount+0x341/0xd30 [ 140.375595][ T5332] ? apparmor_capable+0x137/0x1a0 [ 140.375610][ T5332] ? __pfx_do_new_mount+0x10/0x10 [ 140.375620][ T5332] ? ns_capable+0x89/0xe0 [ 140.375662][ T5332] ? path_mount+0x690/0x10e0 [ 140.375675][ T5332] ? user_path_at+0xd4/0x160 [ 140.375688][ T5332] __se_sys_mount+0x31d/0x420 [ 140.375699][ T5332] ? __pfx___se_sys_mount+0x10/0x10 [ 140.375709][ T5332] ? __x64_sys_mount+0x20/0xc0 [ 140.375720][ T5332] do_syscall_64+0x14d/0xf80 [ 140.375729][ T5332] ? trace_irq_disable+0x3b/0x150 [ 140.375758][ T5332] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 140.375769][ T5332] ? clear_bhb_loop+0x40/0x90 [ 140.375780][ T5332] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 140.375790][ T5332] RIP: 0033:0x7f5238f9bf79 [ 140.375819][ T5332] 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 [ 140.375828][ T5332] RSP: 002b:00007f5239ecc028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 140.375841][ T5332] RAX: ffffffffffffffda RBX: 00007f5239215fa0 RCX: 00007f5238f9bf79 [ 140.375849][ T5332] RDX: 0000200000000080 RSI: 00002000000000c0 RDI: 0000000000000000 [ 140.375856][ T5332] RBP: 00007f52390327e0 R08: 0000200000000900 R09: 0000000000000000 [ 140.375897][ T5332] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 140.375903][ T5332] R13: 00007f5239216038 R14: 00007f5239215fa0 R15: 00007fffd3a7cb88 [ 140.375914][ T5332] [ 140.583299][ T5332] overlayfs: upper fs does not support tmpfile. [ 140.587578][ T5332] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 140.591535][ T5332] overlayfs: upper fs missing required features.