REISERFS warning: reiserfs-5093 is_leaf: item entry count seems wrong *3.5*[2 4106497 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: 1 PID: 27806 Comm: syz-executor.4 Not tainted 6.4.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:maybe_indirect_to_direct fs/reiserfs/stree.c:1566 [inline]
RIP: 0010:reiserfs_cut_from_item+0xaeb/0x1b20 fs/reiserfs/stree.c:1692
Code: 11 f7 ff ff 48 89 ef e8 e3 71 b5 ff e9 42 fa ff ff 48 89 cf e8 d6 71 b5 ff e9 50 f9 ff ff e8 2c 9d 63 ff 0f 0b e8 25 9d 63 ff <0f> 0b e8 1e 9d 63 ff 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc90008a7f508 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000e5c RCX: 0000000000000000
RDX: ffff8880222ae180 RSI: ffffffff821fca8b RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000000e5c R11: 00000000000325c8 R12: ffff88808fa748c0
R13: ffff88808fa74870 R14: ffff888086214000 R15: ffffc90008a7fa78
FS:  00007fcecd975700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f213adfe000 CR3: 0000000022a2f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 reiserfs_do_truncate+0x630/0x1080 fs/reiserfs/stree.c:1971
 reiserfs_truncate_file+0x1b5/0x1070 fs/reiserfs/inode.c:2308
 reiserfs_setattr+0xddf/0x1370 fs/reiserfs/inode.c:3393
 notify_change+0xb2c/0x1180 fs/attr.c:483
 do_truncate+0x143/0x200 fs/open.c:66
 do_sys_ftruncate+0x53a/0x770 fs/open.c:194
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fceccc8c389
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:00007fcecd975168 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007fceccdac120 RCX: 00007fceccc8c389
RDX: 0000000000000000 RSI: 0000000000000e5c RDI: 0000000000000004
RBP: 00007fcecccd7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffda422e0ff R14: 00007fcecd975300 R15: 0000000000022000
 </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/0x1b20 fs/reiserfs/stree.c:1692
Code: 11 f7 ff ff 48 89 ef e8 e3 71 b5 ff e9 42 fa ff ff 48 89 cf e8 d6 71 b5 ff e9 50 f9 ff ff e8 2c 9d 63 ff 0f 0b e8 25 9d 63 ff <0f> 0b e8 1e 9d 63 ff 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc90008a7f508 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000e5c RCX: 0000000000000000
RDX: ffff8880222ae180 RSI: ffffffff821fca8b RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000000e5c R11: 00000000000325c8 R12: ffff88808fa748c0
R13: ffff88808fa74870 R14: ffff888086214000 R15: ffffc90008a7fa78
FS:  00007fcecd975700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f213adfe000 CR3: 0000000022a2f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400