REISERFS warning: reiserfs-5093 is_leaf: item entry count seems wrong *3.5*[2 1 0(1) DIR], item_len 35, item_location 4029, free_space(entry_count) 2 REISERFS error (device loop3): vs-5150 search_by_key: invalid format found in block 532. Fsck? ------------[ cut here ]------------ kernel BUG at fs/reiserfs/stree.c:1566! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3967 Comm: syz-executor.3 Not tainted 6.7.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:maybe_indirect_to_direct fs/reiserfs/stree.c:1566 [inline] RIP: 0010:reiserfs_cut_from_item+0xaeb/0x1a10 fs/reiserfs/stree.c:1692 Code: ff ff 48 89 df e8 65 27 b4 ff e9 f4 f9 ff ff 48 89 f7 e8 58 27 b4 ff e9 4a f9 ff ff e8 fe 7c 5d ff 90 0f 0b e8 f6 7c 5d ff 90 <0f> 0b e8 ee 7c 5d ff 48 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 RSP: 0018:ffffc90004c8f500 EFLAGS: 00010287 RAX: 0000000000036cf5 RBX: 0000000000000e5c RCX: ffffc9000e5ab000 RDX: 0000000000040000 RSI: ffffffff8229f1da RDI: 0000000000000006 RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000 R10: 0000000000000e5c R11: fffffffffffc3630 R12: ffff88802b915160 R13: 0000000000000000 R14: ffff888017794000 R15: ffff88802b915110 FS: 00007f067459f6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555564dc978 CR3: 00000000457f4000 CR4: 0000000000350ef0 Call Trace: reiserfs_do_truncate+0x672/0x10b0 fs/reiserfs/stree.c:1971 reiserfs_truncate_file+0x1bf/0x940 fs/reiserfs/inode.c:2302 reiserfs_setattr+0x9c3/0x12a0 fs/reiserfs/inode.c:3388 notify_change+0x742/0x11c0 fs/attr.c:499 do_truncate+0x15c/0x220 fs/open.c:66 do_sys_ftruncate+0x6a2/0x790 fs/open.c:194 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f067387cba9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f067459f0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007f067399bf80 RCX: 00007f067387cba9 RDX: 0000000000000000 RSI: 0000000000000e5c RDI: 0000000000000004 RBP: 00007f06738c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f067399bf80 R15: 00007ffe060d9bf8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:maybe_indirect_to_direct fs/reiserfs/stree.c:1566 [inline] RIP: 0010:reiserfs_cut_from_item+0xaeb/0x1a10 fs/reiserfs/stree.c:1692 Code: ff ff 48 89 df e8 65 27 b4 ff e9 f4 f9 ff ff 48 89 f7 e8 58 27 b4 ff e9 4a f9 ff ff e8 fe 7c 5d ff 90 0f 0b e8 f6 7c 5d ff 90 <0f> 0b e8 ee 7c 5d ff 48 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 RSP: 0018:ffffc90004c8f500 EFLAGS: 00010287 RAX: 0000000000036cf5 RBX: 0000000000000e5c RCX: ffffc9000e5ab000 RDX: 0000000000040000 RSI: ffffffff8229f1da RDI: 0000000000000006 RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000 R10: 0000000000000e5c R11: fffffffffffc3630 R12: ffff88802b915160 R13: 0000000000000000 R14: ffff888017794000 R15: ffff88802b915110 FS: 00007f067459f6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5360effd80 CR3: 00000000457f4000 CR4: 0000000000350ef0