(syz.1.1045,11710,1):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,1) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Tainted: G L ------------------------------------------------------ syz.1.1045/11710 is trying to acquire lock: ffff8880625a3a98 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_init_acl+0x1c3/0x800 fs/ocfs2/acl.c:367 but task is already holding lock: ffff88803898f918 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x3ac/0x700 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+0x97/0x200 kernel/locking/rwsem.c:1568 ocfs2_start_trans+0x3ac/0x700 fs/ocfs2/journal.c:369 ocfs2_mknod+0x1181/0x2260 fs/ocfs2/namei.c:365 ocfs2_create+0x195/0x460 fs/ocfs2/namei.c:677 lookup_open fs/namei.c:4511 [inline] open_last_lookups fs/namei.c:4611 [inline] path_openat+0x13b4/0x38a0 fs/namei.c:4855 do_file_open+0x23e/0x4a0 fs/namei.c:4887 do_sys_openat2+0x113/0x200 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1381 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (sb_internal#2){.+.+}-{0:0}: __lock_release kernel/locking/lockdep.c:5576 [inline] lock_release+0x199/0x3c0 kernel/locking/lockdep.c:5891 up_write+0x1a/0x60 kernel/locking/rwsem.c:1681 inode_unlock include/linux/fs.h:1039 [inline] ocfs2_free_ac_resource fs/ocfs2/suballoc.c:131 [inline] ocfs2_free_alloc_context+0x97/0x1a0 fs/ocfs2/suballoc.c:145 ocfs2_write_begin_nolock+0x410f/0x41a0 fs/ocfs2/aops.c:1805 ocfs2_write_begin+0x1c5/0x320 fs/ocfs2/aops.c:1885 generic_perform_write+0x2af/0x8b0 mm/filemap.c:4325 ocfs2_file_write_iter+0x1666/0x1e70 fs/ocfs2/file.c:2476 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x629/0xba0 fs/read_write.c:688 ksys_pwrite64 fs/read_write.c:795 [inline] __do_sys_pwrite64 fs/read_write.c:803 [inline] __se_sys_pwrite64 fs/read_write.c:800 [inline] __x64_sys_pwrite64+0x19c/0x230 fs/read_write.c:800 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/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+0x3a/0x50 kernel/locking/rwsem.c:1625 ocfs2_try_remove_refcount_tree+0xb6/0x340 fs/ocfs2/refcounttree.c:932 ocfs2_truncate_file+0xdf3/0x14e0 fs/ocfs2/file.c:522 ocfs2_setattr+0x15e5/0x1ca0 fs/ocfs2/file.c:1219 notify_change+0xc18/0xf60 fs/attr.c:556 do_truncate+0x1c2/0x250 fs/open.c:68 handle_truncate fs/namei.c:4307 [inline] do_open fs/namei.c:4703 [inline] path_openat+0x2fc4/0x38a0 fs/namei.c:4858 do_file_open+0x23e/0x4a0 fs/namei.c:4887 do_sys_openat2+0x113/0x200 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_open fs/open.c:1378 [inline] __se_sys_open fs/open.c:1374 [inline] __x64_sys_open+0x11e/0x150 fs/open.c:1374 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/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:3167 [inline] check_prevs_add kernel/locking/lockdep.c:3286 [inline] validate_chain kernel/locking/lockdep.c:3910 [inline] __lock_acquire+0x15a5/0x2d10 kernel/locking/lockdep.c:5239 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5870 down_read+0x97/0x200 kernel/locking/rwsem.c:1568 ocfs2_init_acl+0x1c3/0x800 fs/ocfs2/acl.c:367 ocfs2_mknod+0x1679/0x2260 fs/ocfs2/namei.c:414 ocfs2_create+0x195/0x460 fs/ocfs2/namei.c:677 lookup_open fs/namei.c:4511 [inline] open_last_lookups fs/namei.c:4611 [inline] path_openat+0x13b4/0x38a0 fs/namei.c:4855 do_file_open+0x23e/0x4a0 fs/namei.c:4887 do_sys_openat2+0x113/0x200 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_creat fs/open.c:1448 [inline] __se_sys_creat fs/open.c:1442 [inline] __x64_sys_creat+0x8f/0xc0 fs/open.c:1442 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/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#2 --> &journal->j_trans_barrier Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(&journal->j_trans_barrier); lock(sb_internal#2); lock(&journal->j_trans_barrier); rlock(&oi->ip_xattr_sem); *** DEADLOCK *** 8 locks held by syz.1.1045/11710: #0: ffff888062df6480 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:493 #1: ffff8880625a3dc0 (&type->i_mutex_dir_key#10){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline] #1: ffff8880625a3dc0 (&type->i_mutex_dir_key#10){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:4608 [inline] #1: ffff8880625a3dc0 (&type->i_mutex_dir_key#10){+.+.}-{4:4}, at: path_openat+0xb5e/0x38a0 fs/namei.c:4855 #2: ffff8880625a8b80 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline] #2: ffff8880625a8b80 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x16d/0x4840 fs/ocfs2/suballoc.c:882 #3: ffff8880625aad00 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline] #3: ffff8880625aad00 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x16d/0x4840 fs/ocfs2/suballoc.c:882 #4: ffff8880625af000 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline] #4: ffff8880625af000 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x11f/0x2660 fs/ocfs2/localalloc.c:636 #5: ffff888062df6770 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_mknod+0x1181/0x2260 fs/ocfs2/namei.c:365 #6: ffff88803898f918 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x3ac/0x700 fs/ocfs2/journal.c:369 #7: ffff888033296bb0 (jbd2_handle#2){.+.+}-{0:0}, at: start_this_handle+0x2054/0x2290 fs/jbd2/transaction.c:444 stack backtrace: CPU: 1 UID: 0 PID: 11710 Comm: syz.1.1045 Tainted: G L syzkaller #0 PREEMPT_{RT,(full)} Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2045 check_noncircular+0x12e/0x150 kernel/locking/lockdep.c:2177 check_prev_add kernel/locking/lockdep.c:3167 [inline] check_prevs_add kernel/locking/lockdep.c:3286 [inline] validate_chain kernel/locking/lockdep.c:3910 [inline] __lock_acquire+0x15a5/0x2d10 kernel/locking/lockdep.c:5239 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5870 down_read+0x97/0x200 kernel/locking/rwsem.c:1568 ocfs2_init_acl+0x1c3/0x800 fs/ocfs2/acl.c:367 ocfs2_mknod+0x1679/0x2260 fs/ocfs2/namei.c:414 ocfs2_create+0x195/0x460 fs/ocfs2/namei.c:677 lookup_open fs/namei.c:4511 [inline] open_last_lookups fs/namei.c:4611 [inline] path_openat+0x13b4/0x38a0 fs/namei.c:4855 do_file_open+0x23e/0x4a0 fs/namei.c:4887 do_sys_openat2+0x113/0x200 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_creat fs/open.c:1448 [inline] __se_sys_creat fs/open.c:1442 [inline] __x64_sys_creat+0x8f/0xc0 fs/open.c:1442 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb82c5ccdd9 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:00007fb82a826028 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007fb82c845fa0 RCX: 00007fb82c5ccdd9 RDX: 0000000000000000 RSI: 0000000000000044 RDI: 00002000000009c0 RBP: 00007fb82c662d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fb82c846038 R14: 00007fb82c845fa0 R15: 00007ffc0a70ea98 syz.1.1045 (11710) used greatest stack depth: 17880 bytes left