REISERFS (device loop0): Using tea hash to sort names REISERFS warning (device loop0): vs-13060 reiserfs_update_sd_size: stat data of object [1 2 0x0 SD] (nlink == 4) not found (pos 2) REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. REISERFS warning (device loop0): vs-13060 reiserfs_update_sd_size: stat data of object [1 2 0x0 SD] (nlink == 4) not found (pos 2) ------------[ cut here ]------------ kernel BUG at fs/reiserfs/item_ops.c:569! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4334 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:direntry_check_right+0x262/0x270 fs/reiserfs/item_ops.c:569 Code: e9 4b ff ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 51 ff ff ff be 04 00 00 00 4c 89 ff e8 68 8a bc ff e9 3f ff ff ff e8 5e 26 78 ff <0f> 0b e8 57 26 78 ff 0f 0b 0f 1f 44 00 00 55 41 57 41 56 41 55 41 RSP: 0018:ffffc90003d5f0f8 EFLAGS: 00010293 RAX: ffffffff81ff9dc2 RBX: dffffc0000000000 RCX: ffff888026625940 RDX: 0000000000000000 RSI: 0000000000000018 RDI: 0000000000000040 RBP: ffff888073e88152 R08: ffff888026625940 R09: 0000000000000002 R10: 0000000000000070 R11: 0000000000000000 R12: ffff888073e8814e R13: 0000000000000018 R14: fffffffffffffffe R15: 0000000000000028 FS: 00005555783d0500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1654861000 CR3: 0000000075bf0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_right+0x4ea/0x7f0 fs/reiserfs/fix_node.c:355 dc_check_balance_leaf fs/reiserfs/fix_node.c:1983 [inline] dc_check_balance fs/reiserfs/fix_node.c:2039 [inline] check_balance fs/reiserfs/fix_node.c:2086 [inline] fix_nodes+0x3dc4/0x82d0 fs/reiserfs/fix_node.c:2635 reiserfs_cut_from_item+0x2e8/0x1ef0 fs/reiserfs/stree.c:1742 reiserfs_do_truncate+0xa90/0x13e0 fs/reiserfs/stree.c:1973 reiserfs_truncate_file+0x632/0xdc0 fs/reiserfs/inode.c:2318 reiserfs_file_release+0x8e0/0xa50 fs/reiserfs/file.c:109 __fput+0x234/0x930 fs/file_table.c:311 task_work_run+0x125/0x1a0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f3bdcc6cbe9 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:00007ffd82a24c98 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 0000000000012240 RCX: 00007f3bdcc6cbe9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000582a24f8f R10: 0000001b2fa20000 R11: 0000000000000246 R12: 00007f3bdce93fac R13: 00007f3bdce93fa0 R14: ffffffffffffffff R15: 0000000000000002 Modules linked in: ---[ end trace ff4faa8856781bca ]--- RIP: 0010:direntry_check_right+0x262/0x270 fs/reiserfs/item_ops.c:569 Code: e9 4b ff ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 51 ff ff ff be 04 00 00 00 4c 89 ff e8 68 8a bc ff e9 3f ff ff ff e8 5e 26 78 ff <0f> 0b e8 57 26 78 ff 0f 0b 0f 1f 44 00 00 55 41 57 41 56 41 55 41 RSP: 0018:ffffc90003d5f0f8 EFLAGS: 00010293 RAX: ffffffff81ff9dc2 RBX: dffffc0000000000 RCX: ffff888026625940 RDX: 0000000000000000 RSI: 0000000000000018 RDI: 0000000000000040 RBP: ffff888073e88152 R08: ffff888026625940 R09: 0000000000000002 R10: 0000000000000070 R11: 0000000000000000 R12: ffff888073e8814e R13: 0000000000000018 R14: fffffffffffffffe R15: 0000000000000028 FS: 00005555783d0500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1654876000 CR3: 0000000075bf0000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400