REISERFS error (device loop0): vs-13050 reiserfs_update_sd_size: i/o failure occurred trying to update [2 2 0x0 SD] stat data
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 loop0): vs-5150 search_by_key: invalid format found in block 532. Fsck?
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 7969 Comm: syz-executor399 Not tainted 4.14.302-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
task: ffff8880b38741c0 task.stack: ffff88808d090000
RIP: 0010:reiserfs_node_data fs/reiserfs/reiserfs.h:2186 [inline]
RIP: 0010:item_head fs/reiserfs/reiserfs.h:2202 [inline]
RIP: 0010:tp_item_head fs/reiserfs/reiserfs.h:2228 [inline]
RIP: 0010:prepare_for_delete_or_cut+0x115/0x18c0 fs/reiserfs/stree.c:1060
RSP: 0018:ffff88808d0973f0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff88808d0975b0 RCX: ffff88808d097a10
RDX: 0000000000000005 RSI: ffff88808df0b788 RDI: 0000000000000028
RBP: 0000000000000000 R08: ffff88808d0975c0 R09: ffff88808d0975b0
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 1ffff11011a12f4a R15: ffff88808d0975c0
FS:  000055555582a300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0fdb7c0ec8 CR3: 00000000a1ce4000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 reiserfs_cut_from_item+0x1ca/0x1570 fs/reiserfs/stree.c:1692
 reiserfs_do_truncate+0x53f/0xf50 fs/reiserfs/stree.c:1983
 reiserfs_truncate_file+0x17e/0xdb0 fs/reiserfs/inode.c:2319
 reiserfs_file_release+0x758/0xaf0 fs/reiserfs/file.c:115
 __fput+0x25f/0x7a0 fs/file_table.c:210
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xa44/0x2850 kernel/exit.c:868
 do_group_exit+0x100/0x2e0 kernel/exit.c:965
 SYSC_exit_group kernel/exit.c:976 [inline]
 SyS_exit_group+0x19/0x20 kernel/exit.c:974
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f0fdb77ccd9
RSP: 002b:00007ffee90522c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f0fdb7f2430 RCX: 00007f0fdb77ccd9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0fdb7f2430
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 1a 17 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6d 00 48 8d 7d 28 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ed 16 00 00 4c 8b 6d 28 49 63 c4 48 8d 44 40 
RIP: reiserfs_node_data fs/reiserfs/reiserfs.h:2186 [inline] RSP: ffff88808d0973f0
RIP: item_head fs/reiserfs/reiserfs.h:2202 [inline] RSP: ffff88808d0973f0
RIP: tp_item_head fs/reiserfs/reiserfs.h:2228 [inline] RSP: ffff88808d0973f0
RIP: prepare_for_delete_or_cut+0x115/0x18c0 fs/reiserfs/stree.c:1060 RSP: ffff88808d0973f0
---[ end trace 8ee71140481a2388 ]---
----------------
Code disassembly (best guess), 4 bytes skipped:
   0:	48 c1 ea 03          	shr    $0x3,%rdx
   4:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   8:	0f 85 1a 17 00 00    	jne    0x1728
   e:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  15:	fc ff df
  18:	48 8b 6d 00          	mov    0x0(%rbp),%rbp
  1c:	48 8d 7d 28          	lea    0x28(%rbp),%rdi
  20:	48 89 fa             	mov    %rdi,%rdx
  23:	48 c1 ea 03          	shr    $0x3,%rdx
* 27:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2b:	0f 85 ed 16 00 00    	jne    0x171e
  31:	4c 8b 6d 28          	mov    0x28(%rbp),%r13
  35:	49 63 c4             	movslq %r12d,%rax
  38:	48                   	rex.W
  39:	8d                   	.byte 0x8d
  3a:	44                   	rex.R
  3b:	40                   	rex