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 CPU: 1 PID: 8113 Comm: syz-executor254 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 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+0x12a/0x1b00 fs/reiserfs/stree.c:1060 Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 57 19 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 1b 48 8d 7b 28 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 69 18 00 00 48 8b 4b 28 49 63 c4 48 8d 44 40 03 RSP: 0018:ffff8880950e7450 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880950e7ad0 RDX: 0000000000000005 RSI: ffffffff81d4eb6f RDI: 0000000000000028 RBP: ffff8880950e7650 R08: ffff8880950e7660 R09: ffff8880950e7650 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88808a867780 R14: 1ffff11012a1cf62 R15: ffff8880950e7660 FS: 0000555556133300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e54b9cb8e0 CR3: 00000000abdaa000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: reiserfs_cut_from_item+0x1ef/0x1960 fs/reiserfs/stree.c:1692 reiserfs_do_truncate+0x64a/0x10c0 fs/reiserfs/stree.c:1983 reiserfs_truncate_file+0x1b1/0x1030 fs/reiserfs/inode.c:2320 reiserfs_file_release+0x982/0xd90 fs/reiserfs/file.c:115 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8099798313 Code: c7 c2 c0 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb ba 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 RSP: 002b:00007fff3f184738 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f8099798313 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fff3f184748 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3f184750 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 225a91012c961b8b ]--- 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+0x12a/0x1b00 fs/reiserfs/stree.c:1060 Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 57 19 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 1b 48 8d 7b 28 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 69 18 00 00 48 8b 4b 28 49 63 c4 48 8d 44 40 03 RSP: 0018:ffff8880950e7450 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880950e7ad0 RDX: 0000000000000005 RSI: ffffffff81d4eb6f RDI: 0000000000000028 RBP: ffff8880950e7650 R08: ffff8880950e7660 R09: ffff8880950e7650 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88808a867780 R14: 1ffff11012a1cf62 R15: ffff8880950e7660 FS: 0000555556133300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e54b9cb8e0 CR3: 00000000abdaa000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- 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 57 19 00 00 jne 0x1965 e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 15: fc ff df 18: 48 8b 1b mov (%rbx),%rbx 1b: 48 8d 7b 28 lea 0x28(%rbx),%rdi 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx * 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2a: 0f 85 69 18 00 00 jne 0x1899 30: 48 8b 4b 28 mov 0x28(%rbx),%rcx 34: 49 63 c4 movslq %r12d,%rax 37: 48 8d 44 40 03 lea 0x3(%rax,%rax,2),%rax