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 loop4): vs-5150 search_by_key: invalid format found in block 532. Fsck?
REISERFS (device loop4): Remounting filesystem read-only
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kernel BUG at fs/reiserfs/stree.c:1566!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7502 Comm: syz-executor.4 Not tainted 6.7.0-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 55 24 b4 ff e9 f4 f9 ff ff 48 89 f7 e8 48 24 b4 ff e9 4a f9 ff ff e8 8e 7a 5d ff 90 0f 0b e8 86 7a 5d ff 90 <0f> 0b e8 7e 7a 5d ff 48 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48
RSP: 0018:ffffc90015a77500 EFLAGS: 00010287
RAX: 0000000000039d09 RBX: 0000000000000e5c RCX: ffffc9000ad36000
RDX: 0000000000040000 RSI: ffffffff8229f80a RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000000e5c R11: 0000000000000007 R12: ffff88802e0a95c0
R13: 0000000000000000 R14: ffff888076802000 R15: ffff88802e0a9570
FS:  00007f181955d6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31a35000 CR3: 0000000028344000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 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: 0033:0x7f181887cd29
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:00007f181955d0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f18189abf80 RCX: 00007f181887cd29
RDX: 0000000000000000 RSI: 0000000000000e5c RDI: 0000000000000004
RBP: 00007f18188c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f18189abf80 R15: 00007ffdc67e2df8
 </TASK>
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 55 24 b4 ff e9 f4 f9 ff ff 48 89 f7 e8 48 24 b4 ff e9 4a f9 ff ff e8 8e 7a 5d ff 90 0f 0b e8 86 7a 5d ff 90 <0f> 0b e8 7e 7a 5d ff 48 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48
RSP: 0018:ffffc90015a77500 EFLAGS: 00010287
RAX: 0000000000039d09 RBX: 0000000000000e5c RCX: ffffc9000ad36000
RDX: 0000000000040000 RSI: ffffffff8229f80a RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000000e5c R11: 0000000000000007 R12: ffff88802e0a95c0
R13: 0000000000000000 R14: ffff888076802000 R15: ffff88802e0a9570
FS:  00007f181955d6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe280fff000 CR3: 0000000028344000 CR4: 0000000000350ef0