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: 7966 Comm: syz-executor384 Not tainted 4.14.302-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
task: ffff8880b37a20c0 task.stack: ffff8880b36c0000
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:ffff8880b36c7500 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8880b36c76c0 RCX: ffff8880b36c7b20
RDX: 0000000000000005 RSI: ffff88808df46788 RDI: 0000000000000028
RBP: 0000000000000000 R08: ffff8880b36c76d0 R09: ffff8880b36c76c0
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 1ffff110166d8f6c R15: ffff8880b36c76d0
FS: 0000555556841300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd5c86be740 CR3: 00000000b613a000 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
tracehook_notify_resume include/linux/tracehook.h:191 [inline]
exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f8858b46313
RSP: 002b:00007ffcf69f7198 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f8858b46313
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007ffcf69f71a8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf69f71b0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
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: ffff8880b36c7500
RIP: item_head fs/reiserfs/reiserfs.h:2202 [inline] RSP: ffff8880b36c7500
RIP: tp_item_head fs/reiserfs/reiserfs.h:2228 [inline] RSP: ffff8880b36c7500
RIP: prepare_for_delete_or_cut+0x115/0x18c0 fs/reiserfs/stree.c:1060 RSP: ffff8880b36c7500
---[ end trace 0db54383152ced1b ]---
----------------
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