REISERFS (device loop0): using 3.5.x disk format 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. ------------[ cut here ]------------ kernel BUG at fs/reiserfs/item_ops.c:569! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5062 Comm: syz-executor395 Not tainted 6.6.0-syzkaller-15365-g305230142ae0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:direntry_check_right+0x26b/0x280 fs/reiserfs/item_ops.c:569 Code: df e9 38 ff ff ff 89 d9 80 e1 07 38 c1 0f 8c 3e ff ff ff be 04 00 00 00 48 89 df e8 7f 36 af ff e9 2c ff ff ff e8 d5 13 53 ff <0f> 0b e8 ce 13 53 ff 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 RSP: 0018:ffffc90003afeed0 EFLAGS: 00010293 RAX: ffffffff823ba82b RBX: 0000000000000020 RCX: ffff888079929dc0 RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000041 RBP: 0000000000000021 R08: ffffffff823ba69e R09: ffffffff8235650d R10: 0000000000000004 R11: ffff888079929dc0 R12: 00000000fffffffe R13: 0000000000000000 R14: 0000000000000002 R15: ffff8880549c4120 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3e01595ed8 CR3: 0000000028720000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_right+0x4d1/0x770 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+0x3ff3/0x8ce0 fs/reiserfs/fix_node.c:2636 reiserfs_cut_from_item+0x466/0x2580 fs/reiserfs/stree.c:1740 reiserfs_do_truncate+0x9b9/0x14c0 fs/reiserfs/stree.c:1971 reiserfs_truncate_file+0x4da/0x820 fs/reiserfs/inode.c:2302 reiserfs_file_release+0x8ca/0xaa0 fs/reiserfs/file.c:109 __fput+0x3cc/0xa10 fs/file_table.c:394 task_work_run+0x24a/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa34/0x2750 kernel/exit.c:871 do_group_exit+0x206/0x2c0 kernel/exit.c:1021 __do_sys_exit_group kernel/exit.c:1032 [inline] __se_sys_exit_group kernel/exit.c:1030 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1030 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fe19c8650b9 Code: Unable to access opcode bytes at 0x7fe19c86508f. RSP: 002b:00007ffdbbdc7968 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe19c8650b9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 00007fe19c8e0370 R08: ffffffffffffffb8 R09: 00007ffdbbdc7b88 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe19c8e0370 R13: 0000000000000000 R14: 00007fe19c8e10e0 R15: 00007fe19c833980 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:direntry_check_right+0x26b/0x280 fs/reiserfs/item_ops.c:569 Code: df e9 38 ff ff ff 89 d9 80 e1 07 38 c1 0f 8c 3e ff ff ff be 04 00 00 00 48 89 df e8 7f 36 af ff e9 2c ff ff ff e8 d5 13 53 ff <0f> 0b e8 ce 13 53 ff 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 RSP: 0018:ffffc90003afeed0 EFLAGS: 00010293 RAX: ffffffff823ba82b RBX: 0000000000000020 RCX: ffff888079929dc0 RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000041 RBP: 0000000000000021 R08: ffffffff823ba69e R09: ffffffff8235650d R10: 0000000000000004 R11: ffff888079929dc0 R12: 00000000fffffffe R13: 0000000000000000 R14: 0000000000000002 R15: ffff8880549c4120 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3e01595ed8 CR3: 0000000028720000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400