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 loop5): vs-5150 search_by_key: invalid format found in block 532. Fsck? ------------[ cut here ]------------ kernel BUG at fs/reiserfs/stree.c:1568! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8126 Comm: syz-executor.5 Not tainted 5.15.117-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:1568 [inline] RIP: 0010:reiserfs_cut_from_item+0x22ff/0x2560 fs/reiserfs/stree.c:1694 Code: 44 89 e1 80 e1 07 38 c1 0f 8c 7b f5 ff ff be 04 00 00 00 4c 89 e7 e8 20 b5 b9 ff 48 8b 54 24 28 e9 64 f5 ff ff e8 51 58 70 ff <0f> 0b e8 4a 58 70 ff 0f 0b e8 43 58 70 ff 0f 0b e8 6c 47 0b 08 e8 RSP: 0018:ffffc900053ef300 EFLAGS: 00010287 RAX: ffffffff820fa0ff RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc900039a5000 RSI: 0000000000010358 RDI: 0000000000010359 RBP: ffffc900053ef830 R08: ffffffff820f8424 R09: ffffffff820f0679 R10: 0000000000000002 R11: ffff8880852d1dc0 R12: 0000000000000e00 R13: 1ffff11011d1b2b8 R14: 0000000000001000 R15: ffff888087272678 FS: 00007ff9fd856700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30936000 CR3: 000000005dc69000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: reiserfs_do_truncate+0xa12/0x15b0 fs/reiserfs/stree.c:1973 reiserfs_truncate_file+0x638/0xda0 fs/reiserfs/inode.c:2318 reiserfs_setattr+0xa4d/0xf90 fs/reiserfs/inode.c:3409 notify_change+0xd4d/0x1000 fs/attr.c:488 do_truncate+0x21c/0x300 fs/open.c:65 do_sys_ftruncate+0x2eb/0x390 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+0x61/0xcb RIP: 0033:0x7ffa07305389 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:00007ff9fd856168 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007ffa07425050 RCX: 00007ffa07305389 RDX: 0000000000000000 RSI: 0000000000000e00 RDI: 0000000000000005 RBP: 00007ffa07350493 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb90f119f R14: 00007ff9fd856300 R15: 0000000000022000 Modules linked in: ---[ end trace f747de8fd097bc85 ]--- RIP: 0010:maybe_indirect_to_direct fs/reiserfs/stree.c:1568 [inline] RIP: 0010:reiserfs_cut_from_item+0x22ff/0x2560 fs/reiserfs/stree.c:1694 Code: 44 89 e1 80 e1 07 38 c1 0f 8c 7b f5 ff ff be 04 00 00 00 4c 89 e7 e8 20 b5 b9 ff 48 8b 54 24 28 e9 64 f5 ff ff e8 51 58 70 ff <0f> 0b e8 4a 58 70 ff 0f 0b e8 43 58 70 ff 0f 0b e8 6c 47 0b 08 e8 RSP: 0018:ffffc900053ef300 EFLAGS: 00010287 RAX: ffffffff820fa0ff RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc900039a5000 RSI: 0000000000010358 RDI: 0000000000010359 RBP: ffffc900053ef830 R08: ffffffff820f8424 R09: ffffffff820f0679 R10: 0000000000000002 R11: ffff8880852d1dc0 R12: 0000000000000e00 R13: 1ffff11011d1b2b8 R14: 0000000000001000 R15: ffff888087272678 FS: 00007ff9fd856700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6ad39c0000 CR3: 000000005dc69000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400