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 loop2): vs-5150 search_by_key: invalid format found in block 532. Fsck?
REISERFS (device loop2): Remounting filesystem read-only
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kernel BUG at fs/reiserfs/stree.c:1568!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7440 Comm: syz-executor.2 Not tainted 6.1.31-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:maybe_indirect_to_direct fs/reiserfs/stree.c:1568 [inline]
RIP: 0010:reiserfs_cut_from_item+0x231e/0x2580 fs/reiserfs/stree.c:1694
Code: 44 89 e1 80 e1 07 38 c1 0f 8c 5c f5 ff ff be 04 00 00 00 4c 89 e7 e8 91 5a b4 ff 48 8b 54 24 28 e9 45 f5 ff ff e8 92 12 5e ff <0f> 0b e8 8b 12 5e ff 0f 0b e8 84 12 5e ff 0f 0b e8 cd 24 57 08 e8
RSP: 0018:ffffc9000b3e7320 EFLAGS: 00010283
RAX: ffffffff822bc2de RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc900055ba000 RSI: 000000000001b46d RDI: 000000000001b46e
RBP: ffffc9000b3e7850 R08: ffffffff822ba5e4 R09: ffffffff822b2839
R10: 0000000000000002 R11: ffff888020c50000 R12: 0000000000000e00
R13: 1ffff11011031f24 R14: 0000000000001000 R15: ffff88808b11a678
FS:  00007fb876959700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c019b2b000 CR3: 0000000028bbe000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 reiserfs_do_truncate+0xa12/0x15b0 fs/reiserfs/stree.c:1973
 reiserfs_truncate_file+0x4d6/0x810 fs/reiserfs/inode.c:2310
 reiserfs_setattr+0xc57/0x11c0 fs/reiserfs/inode.c:3395
 notify_change+0xdcd/0x1080 fs/attr.c:482
 do_truncate+0x21c/0x300 fs/open.c:65
 do_sys_ftruncate+0x2e2/0x380 fs/open.c:193
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb875c8c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb876959168 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007fb875dac050 RCX: 00007fb875c8c169
RDX: 0000000000000000 RSI: 0000000000000e00 RDI: 0000000000000005
RBP: 00007fb875ce7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd8169cecf R14: 00007fb876959300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:maybe_indirect_to_direct fs/reiserfs/stree.c:1568 [inline]
RIP: 0010:reiserfs_cut_from_item+0x231e/0x2580 fs/reiserfs/stree.c:1694
Code: 44 89 e1 80 e1 07 38 c1 0f 8c 5c f5 ff ff be 04 00 00 00 4c 89 e7 e8 91 5a b4 ff 48 8b 54 24 28 e9 45 f5 ff ff e8 92 12 5e ff <0f> 0b e8 8b 12 5e ff 0f 0b e8 84 12 5e ff 0f 0b e8 cd 24 57 08 e8
RSP: 0018:ffffc9000b3e7320 EFLAGS: 00010283
RAX: ffffffff822bc2de RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc900055ba000 RSI: 000000000001b46d RDI: 000000000001b46e
RBP: ffffc9000b3e7850 R08: ffffffff822ba5e4 R09: ffffffff822b2839
R10: 0000000000000002 R11: ffff888020c50000 R12: 0000000000000e00
R13: 1ffff11011031f24 R14: 0000000000001000 R15: ffff88808b11a678
FS:  00007fb876959700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556316888 CR3: 0000000028bbe000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400