(syz.1.3177,19637,1):ocfs2_block_check_validate:400 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,1) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Tainted: G L ------------------------------------------------------ syz.1.3177/19637 is trying to acquire lock: ffff888076d69538 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_init_acl+0x35b/0x840 fs/ocfs2/acl.c:367 but task is already holding lock: ffff8880558558e8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x5c8/0x920 fs/ocfs2/journal.c:369 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&journal->j_trans_barrier){.+.+}-{4:4}: down_read+0x99/0x460 kernel/locking/rwsem.c:1537 ocfs2_start_trans+0x5c8/0x920 fs/ocfs2/journal.c:369 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:754 [inline] ocfs2_reserve_suballoc_bits+0x49e/0x4be0 fs/ocfs2/suballoc.c:903 ocfs2_reserve_new_metadata_blocks+0x506/0xbe0 fs/ocfs2/suballoc.c:1053 ocfs2_expand_inline_dir.constprop.0+0xe21/0x4010 fs/ocfs2/dir.c:2865 ocfs2_extend_dir+0x1dc/0x1c20 fs/ocfs2/dir.c:3227 ocfs2_prepare_dir_for_insert+0x1338/0x1790 fs/ocfs2/dir.c:4345 ocfs2_mknod+0x8ec/0x27d0 fs/ocfs2/namei.c:298 ocfs2_mkdir+0xf2/0x460 fs/ocfs2/namei.c:660 vfs_mkdir+0x361/0x850 fs/namei.c:5233 filename_mkdirat+0x48b/0x5e0 fs/namei.c:5266 __do_sys_mkdirat fs/namei.c:5287 [inline] __se_sys_mkdirat fs/namei.c:5284 [inline] __x64_sys_mkdirat+0x89/0xc0 fs/namei.c:5284 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (sb_internal#4){.+.+}-{0:0}: 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:367 ocfs2_orphan_for_truncate fs/ocfs2/file.c:397 [inline] ocfs2_truncate_file+0x552/0x1840 fs/ocfs2/file.c:501 ocfs2_setattr+0x14cb/0x26a0 fs/ocfs2/file.c:1219 notify_change+0xb25/0x1330 fs/attr.c:556 do_truncate+0x1df/0x240 fs/open.c:68 handle_truncate fs/namei.c:4279 [inline] do_open fs/namei.c:4675 [inline] path_openat+0x2a55/0x31a0 fs/namei.c:4830 do_file_open+0x20e/0x430 fs/namei.c:4859 do_sys_openat2+0x10d/0x1e0 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x12d/0x210 fs/open.c:1383 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}: down_write+0x8b/0x1f0 kernel/locking/rwsem.c:1590 ocfs2_try_remove_refcount_tree+0xa7/0x2f0 fs/ocfs2/refcounttree.c:933 ocfs2_truncate_file+0xbab/0x1840 fs/ocfs2/file.c:522 ocfs2_setattr+0x14cb/0x26a0 fs/ocfs2/file.c:1219 notify_change+0xb25/0x1330 fs/attr.c:556 do_truncate+0x1df/0x240 fs/open.c:68 handle_truncate fs/namei.c:4279 [inline] do_open fs/namei.c:4675 [inline] path_openat+0x2a55/0x31a0 fs/namei.c:4830 do_file_open+0x20e/0x430 fs/namei.c:4859 do_sys_openat2+0x10d/0x1e0 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x12d/0x210 fs/open.c:1383 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #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+0x14b8/0x2630 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1cf/0x380 kernel/locking/lockdep.c:5825 down_read+0x99/0x460 kernel/locking/rwsem.c:1537 ocfs2_init_acl+0x35b/0x840 fs/ocfs2/acl.c:367 ocfs2_mknod+0x1772/0x27d0 fs/ocfs2/namei.c:414 ocfs2_create+0xf4/0x460 fs/ocfs2/namei.c:677 lookup_open.isra.0+0xc47/0x11b0 fs/namei.c:4483 open_last_lookups fs/namei.c:4583 [inline] path_openat+0x2291/0x31a0 fs/namei.c:4827 do_file_open+0x20e/0x430 fs/namei.c:4859 do_sys_openat2+0x10d/0x1e0 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x12d/0x210 fs/open.c:1383 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 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 --> sb_internal#4 --> &journal->j_trans_barrier Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(&journal->j_trans_barrier); lock(sb_internal#4); lock(&journal->j_trans_barrier); rlock(&oi->ip_xattr_sem); *** DEADLOCK *** 8 locks held by syz.1.3177/19637: #0: ffff8880274e2420 (sb_writers#26){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:4572 [inline] #0: ffff8880274e2420 (sb_writers#26){.+.+}-{0:0}, at: path_openat+0x9b1/0x31a0 fs/namei.c:4827 #1: ffff888076d69800 (&type->i_mutex_dir_key#21){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1028 [inline] #1: ffff888076d69800 (&type->i_mutex_dir_key#21){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:4580 [inline] #1: ffff888076d69800 (&type->i_mutex_dir_key#21){+.+.}-{4:4}, at: path_openat+0x220c/0x31a0 fs/namei.c:4827 #2: ffff88804407c2c0 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1028 [inline] #2: ffff88804407c2c0 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x11c/0x4be0 fs/ocfs2/suballoc.c:857 #3: ffff888056eec2c0 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1028 [inline] #3: ffff888056eec2c0 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x11c/0x4be0 fs/ocfs2/suballoc.c:857 #4: ffff8880440789c0 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1028 [inline] #4: ffff8880440789c0 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0xea/0xc00 fs/ocfs2/localalloc.c:636 #5: ffff8880274e2610 (sb_internal#4){.+.+}-{0:0}, at: ocfs2_mknod+0x1643/0x27d0 fs/ocfs2/namei.c:365 #6: ffff8880558558e8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x5c8/0x920 fs/ocfs2/journal.c:369 #7: ffff888054146950 (jbd2_handle#2){.+.+}-{0:0}, at: start_this_handle+0xfaa/0x13a0 fs/jbd2/transaction.c:444 stack backtrace: CPU: 1 UID: 0 PID: 19637 Comm: syz.1.3177 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 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+0x1cf/0x380 kernel/locking/lockdep.c:5825 down_read+0x99/0x460 kernel/locking/rwsem.c:1537 ocfs2_init_acl+0x35b/0x840 fs/ocfs2/acl.c:367 ocfs2_mknod+0x1772/0x27d0 fs/ocfs2/namei.c:414 ocfs2_create+0xf4/0x460 fs/ocfs2/namei.c:677 lookup_open.isra.0+0xc47/0x11b0 fs/namei.c:4483 open_last_lookups fs/namei.c:4583 [inline] path_openat+0x2291/0x31a0 fs/namei.c:4827 do_file_open+0x20e/0x430 fs/namei.c:4859 do_sys_openat2+0x10d/0x1e0 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x12d/0x210 fs/open.c:1383 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f15af19c799 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:00007f15b0087028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f15af415fa0 RCX: 00007f15af19c799 RDX: 000000000000275a RSI: 0000200000000240 RDI: ffffffffffffff9c RBP: 00007f15af232bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f15af416038 R14: 00007f15af415fa0 R15: 00007ffdf15e2b88