(syz.8.695,9214,1):ocfs2_block_check_validate:400 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,8) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.8.695/9214 is trying to acquire lock: ffff8880286ea610 (sb_internal#5){.+.+}-{0:0}, at: ocfs2_setattr+0x1068/0x2630 fs/ocfs2/file.c:1269 but task is already holding lock: ffff88804a89a2e0 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x1057/0x2630 fs/ocfs2/file.c:1268 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&oi->ip_alloc_sem){+.+.}-{4:4}: down_write+0x8b/0x1f0 kernel/locking/rwsem.c:1590 ocfs2_try_remove_refcount_tree+0xa7/0x2f0 fs/ocfs2/refcounttree.c:933 ocfs2_xattr_set+0x1057/0x2b60 fs/ocfs2/xattr.c:3699 ocfs2_set_acl+0x469/0x550 fs/ocfs2/acl.c:255 ocfs2_iop_set_acl+0x224/0x2d0 fs/ocfs2/acl.c:287 set_posix_acl+0x263/0x320 fs/posix_acl.c:954 vfs_remove_acl+0x201/0x620 fs/posix_acl.c:1241 ovl_do_remove_acl fs/overlayfs/overlayfs.h:355 [inline] ovl_workdir_create+0x55b/0xa50 fs/overlayfs/super.c:369 ovl_make_workdir fs/overlayfs/super.c:682 [inline] ovl_get_workdir fs/overlayfs/super.c:840 [inline] ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline] ovl_fill_super+0xee6/0x5db0 fs/overlayfs/super.c:1567 vfs_get_super fs/super.c:1324 [inline] get_tree_nodev+0xdd/0x190 fs/super.c:1343 vfs_get_tree+0x92/0x320 fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount fs/namespace.c:3712 [inline] path_mount+0x7d0/0x23c0 fs/namespace.c:4022 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount fs/namespace.c:4201 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:4201 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&oi->ip_xattr_sem){++++}-{4:4}: down_read+0x99/0x460 kernel/locking/rwsem.c:1537 ocfs2_init_acl+0x35b/0x840 fs/ocfs2/acl.c:367 ocfs2_mknod+0x1719/0x2750 fs/ocfs2/namei.c:414 ocfs2_create+0xf4/0x3f0 fs/ocfs2/namei.c:677 lookup_open.isra.0+0x139b/0x1890 fs/namei.c:4449 open_last_lookups fs/namei.c:4549 [inline] path_openat+0x117d/0x3120 fs/namei.c:4793 do_filp_open+0x1f7/0x420 fs/namei.c:4823 do_sys_openat2+0x12e/0x220 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_creat fs/open.c:1514 [inline] __se_sys_creat fs/open.c:1508 [inline] __x64_sys_creat+0xcc/0x120 fs/open.c:1508 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: down_read+0x99/0x460 kernel/locking/rwsem.c:1537 ocfs2_start_trans+0x5c8/0x920 fs/ocfs2/journal.c:372 ocfs2_shutdown_local_alloc+0x280/0x9b0 fs/ocfs2/localalloc.c:417 ocfs2_dismount_volume+0x1ee/0x8a0 fs/ocfs2/super.c:1825 generic_shutdown_super+0x15f/0x360 fs/super.c:643 kill_block_super+0x3b/0xa0 fs/super.c:1722 deactivate_locked_super+0xc1/0x1b0 fs/super.c:474 deactivate_super fs/super.c:507 [inline] deactivate_super+0xe7/0x110 fs/super.c:503 cleanup_mnt+0x21f/0x450 fs/namespace.c:1318 task_work_run+0x150/0x240 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0x100/0x4b0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x4fe/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (sb_internal#5){.+.+}-{0:0}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x17c/0x330 kernel/locking/lockdep.c:5825 percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline] __sb_start_write include/linux/fs/super.h:19 [inline] sb_start_intwrite include/linux/fs/super.h:177 [inline] ocfs2_start_trans+0x4b7/0x920 fs/ocfs2/journal.c:370 ocfs2_setattr+0x1068/0x2630 fs/ocfs2/file.c:1269 notify_change+0xb25/0x12d0 fs/attr.c:546 ovl_do_notify_change fs/overlayfs/overlayfs.h:203 [inline] ovl_workdir_create+0x735/0xa50 fs/overlayfs/super.c:379 ovl_make_workdir fs/overlayfs/super.c:682 [inline] ovl_get_workdir fs/overlayfs/super.c:840 [inline] ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline] ovl_fill_super+0xee6/0x5db0 fs/overlayfs/super.c:1567 vfs_get_super fs/super.c:1324 [inline] get_tree_nodev+0xdd/0x190 fs/super.c:1343 vfs_get_tree+0x92/0x320 fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount fs/namespace.c:3712 [inline] path_mount+0x7d0/0x23c0 fs/namespace.c:4022 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount fs/namespace.c:4201 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:4201 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: sb_internal#5 --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&oi->ip_alloc_sem); lock(&oi->ip_xattr_sem); lock(&oi->ip_alloc_sem); rlock(sb_internal#5); *** DEADLOCK *** 4 locks held by syz.8.695/9214: #0: ffff88801e7240e0 (&type->s_umount_key#56/1){+.+.}-{4:4}, at: alloc_super+0x244/0xd20 fs/super.c:344 #1: ffff8880286ea420 (sb_writers#24){.+.+}-{0:0}, at: ovl_make_workdir fs/overlayfs/super.c:678 [inline] #1: ffff8880286ea420 (sb_writers#24){.+.+}-{0:0}, at: ovl_get_workdir fs/overlayfs/super.c:840 [inline] #1: ffff8880286ea420 (sb_writers#24){.+.+}-{0:0}, at: ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline] #1: ffff8880286ea420 (sb_writers#24){.+.+}-{0:0}, at: ovl_fill_super+0xebb/0x5db0 fs/overlayfs/super.c:1567 #2: ffff88804a89a640 (&sb->s_type->i_mutex_key#37){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #2: ffff88804a89a640 (&sb->s_type->i_mutex_key#37){+.+.}-{4:4}, at: ovl_workdir_create+0x6bc/0xa50 fs/overlayfs/super.c:378 #3: ffff88804a89a2e0 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x1057/0x2630 fs/ocfs2/file.c:1268 stack backtrace: CPU: 1 UID: 0 PID: 9214 Comm: syz.8.695 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_circular_bug.cold+0x178/0x1c7 kernel/locking/lockdep.c:2043 check_noncircular+0x146/0x160 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x17c/0x330 kernel/locking/lockdep.c:5825 percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline] __sb_start_write include/linux/fs/super.h:19 [inline] sb_start_intwrite include/linux/fs/super.h:177 [inline] ocfs2_start_trans+0x4b7/0x920 fs/ocfs2/journal.c:370 ocfs2_setattr+0x1068/0x2630 fs/ocfs2/file.c:1269 notify_change+0xb25/0x12d0 fs/attr.c:546 ovl_do_notify_change fs/overlayfs/overlayfs.h:203 [inline] ovl_workdir_create+0x735/0xa50 fs/overlayfs/super.c:379 ovl_make_workdir fs/overlayfs/super.c:682 [inline] ovl_get_workdir fs/overlayfs/super.c:840 [inline] ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline] ovl_fill_super+0xee6/0x5db0 fs/overlayfs/super.c:1567 vfs_get_super fs/super.c:1324 [inline] get_tree_nodev+0xdd/0x190 fs/super.c:1343 vfs_get_tree+0x92/0x320 fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount fs/namespace.c:3712 [inline] path_mount+0x7d0/0x23c0 fs/namespace.c:4022 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount fs/namespace.c:4201 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:4201 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1bbc39aeb9 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 RSP: 002b:00007f1bbd253028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f1bbc615fa0 RCX: 00007f1bbc39aeb9 RDX: 0000200000000000 RSI: 0000200000000100 RDI: 0000000000000000 RBP: 00007f1bbc408c1f R08: 00002000000000c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1bbc616038 R14: 00007f1bbc615fa0 R15: 00007fff359f70f8 overlayfs: upper fs does not support tmpfile. overlayfs: upper fs does not support RENAME_WHITEOUT. overlayfs: upper fs missing required features. ocfs2: Unmounting device (7,8) on (node local)