(syz.6.411,8118,1):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,6) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Tainted: G L ------------------------------------------------------ syz.6.411/8118 is trying to acquire lock: ffff8880596f4e38 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_calc_xattr_init+0x20a/0xd80 fs/ocfs2/xattr.c:631 but task is already holding lock: ffff88804ba6a640 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1028 [inline] ffff88804ba6a640 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x164/0x4600 fs/ocfs2/suballoc.c:857 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}: down_write+0x96/0x1f0 kernel/locking/rwsem.c:1590 inode_lock include/linux/fs.h:1028 [inline] ocfs2_remove_inode fs/ocfs2/inode.c:733 [inline] ocfs2_wipe_inode fs/ocfs2/inode.c:896 [inline] ocfs2_delete_inode fs/ocfs2/inode.c:1157 [inline] ocfs2_evict_inode+0x1507/0x4040 fs/ocfs2/inode.c:1299 evict+0x5f4/0xae0 fs/inode.c:837 d_delete_notify include/linux/fsnotify.h:377 [inline] vfs_rmdir+0x427/0x6e0 fs/namei.c:5322 do_rmdir+0x281/0x500 fs/namei.c:5364 __do_sys_unlinkat fs/namei.c:5541 [inline] __se_sys_unlinkat fs/namei.c:5535 [inline] __x64_sys_unlinkat+0xc2/0xf0 fs/namei.c:5535 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}: down_write+0x96/0x1f0 kernel/locking/rwsem.c:1590 inode_lock include/linux/fs.h:1028 [inline] ocfs2_del_inode_from_orphan+0x134/0x740 fs/ocfs2/namei.c:2731 ocfs2_dio_end_io_write fs/ocfs2/aops.c:2306 [inline] ocfs2_dio_end_io+0x479/0x10f0 fs/ocfs2/aops.c:2404 dio_complete+0x25b/0x790 fs/direct-io.c:281 __blockdev_direct_IO+0x2e63/0x3490 fs/direct-io.c:1303 ocfs2_direct_IO+0x25f/0x2d0 fs/ocfs2/aops.c:2441 generic_file_direct_write+0x1db/0x3e0 mm/filemap.c:4248 __generic_file_write_iter+0x11d/0x230 mm/filemap.c:4417 ocfs2_file_write_iter+0x1582/0x1cf0 fs/ocfs2/file.c:2475 do_iter_readv_writev+0x623/0x8c0 fs/read_write.c:-1 vfs_writev+0x31a/0x960 fs/read_write.c:1057 do_writev+0x14d/0x2d0 fs/read_write.c:1103 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&oi->ip_alloc_sem){++++}-{4:4}: down_write+0x96/0x1f0 kernel/locking/rwsem.c:1590 ocfs2_try_remove_refcount_tree+0xb6/0x320 fs/ocfs2/refcounttree.c:933 ocfs2_truncate_file+0xd92/0x13e0 fs/ocfs2/file.c:521 ocfs2_setattr+0x155e/0x1bb0 fs/ocfs2/file.c:1218 notify_change+0xc1a/0xf40 fs/attr.c:546 do_truncate+0x1a4/0x220 fs/open.c:68 coredump_file fs/coredump.c:964 [inline] do_coredump fs/coredump.c:1099 [inline] vfs_coredump+0x3391/0x3e60 fs/coredump.c:1200 get_signal+0x1108/0x1340 kernel/signal.c:3019 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop kernel/entry/common.c:75 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline] irqentry_exit+0x178/0x670 kernel/entry/common.c:196 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 -> #0 (&oi->ip_xattr_sem){++++}-{4:4}: 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+0x15a6/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x107/0x340 kernel/locking/lockdep.c:5868 down_read+0x47/0x2e0 kernel/locking/rwsem.c:1537 ocfs2_calc_xattr_init+0x20a/0xd80 fs/ocfs2/xattr.c:631 ocfs2_mknod+0xc7d/0x2030 fs/ocfs2/namei.c:334 vfs_mknod+0x448/0x610 fs/namei.c:5061 do_mknodat+0x3cc/0x670 fs/namei.c:-1 __do_sys_mknod fs/namei.c:5149 [inline] __se_sys_mknod fs/namei.c:5147 [inline] __x64_sys_mknod+0x8c/0xa0 fs/namei.c:5147 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/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: &oi->ip_xattr_sem --> &ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE] --> &ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE] Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]); lock(&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]); lock(&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]); rlock(&oi->ip_xattr_sem); *** DEADLOCK *** 3 locks held by syz.6.411/8118: #0: ffff88802a408420 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:493 #1: ffff8880596f5100 (&type->i_mutex_dir_key#13/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1073 [inline] #1: ffff8880596f5100 (&type->i_mutex_dir_key#13/1){+.+.}-{4:4}, at: __start_dirop fs/namei.c:2871 [inline] #1: ffff8880596f5100 (&type->i_mutex_dir_key#13/1){+.+.}-{4:4}, at: start_dirop fs/namei.c:2882 [inline] #1: ffff8880596f5100 (&type->i_mutex_dir_key#13/1){+.+.}-{4:4}, at: filename_create+0x1fb/0x360 fs/namei.c:4885 #2: ffff88804ba6a640 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1028 [inline] #2: ffff88804ba6a640 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x164/0x4600 fs/ocfs2/suballoc.c:857 stack backtrace: CPU: 1 UID: 0 PID: 8118 Comm: syz.6.411 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_circular_bug+0x2e2/0x300 kernel/locking/lockdep.c:2043 check_noncircular+0x12e/0x150 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+0x15a6/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x107/0x340 kernel/locking/lockdep.c:5868 down_read+0x47/0x2e0 kernel/locking/rwsem.c:1537 ocfs2_calc_xattr_init+0x20a/0xd80 fs/ocfs2/xattr.c:631 ocfs2_mknod+0xc7d/0x2030 fs/ocfs2/namei.c:334 vfs_mknod+0x448/0x610 fs/namei.c:5061 do_mknodat+0x3cc/0x670 fs/namei.c:-1 __do_sys_mknod fs/namei.c:5149 [inline] __se_sys_mknod fs/namei.c:5147 [inline] __x64_sys_mknod+0x8c/0xa0 fs/namei.c:5147 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f18ffb8f749 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 RSP: 002b:00007f19009a4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085 RAX: ffffffffffffffda RBX: 00007f18ffde5fa0 RCX: 00007f18ffb8f749 RDX: 000000000000070d RSI: 0000000000002000 RDI: 0000200000000000 RBP: 00007f18ffc13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f18ffde6038 R14: 00007f18ffde5fa0 R15: 00007ffd62d5acc8