| 0| *3.6* [2 5 0x0 SD], item_len 44, item_location 4052, free_space(entry_count) 65535 | mode | size | nlinks | first direct | mtime 0100700 | 11 | 1 | 0 | 1741038699 =================================================================== REISERFS panic (device loop0): PAP-5580 reiserfs_cut_from_item: item to convert does not exist ([2 5 0x1 IND]) ------------[ cut here ]------------ kernel BUG at fs/reiserfs/prints.c:390! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4246 Comm: syz-executor295 Not tainted 6.1.129-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__reiserfs_panic+0x13a/0x140 fs/reiserfs/prints.c:390 Code: c7 c1 80 a0 1e 8b 48 0f 44 c8 48 0f 44 d8 48 c7 c7 40 a1 1e 8b 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 80 73 54 97 e8 46 81 83 08 <0f> 0b 0f 1f 40 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 RSP: 0018:ffffc90003cc7100 EFLAGS: 00010246 RAX: 000000000000006e RBX: ffffffff8b1ec060 RCX: c6dea3d75a8b3000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90003cc71f0 R08: ffffffff816e6edc R09: fffff52000798dc1 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8b1ec080 R13: ffffc90003cc7120 R14: ffffffff8cbf2b67 R15: ffff88814ac6c6a8 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d150812068 CR3: 000000000d08e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: reiserfs_cut_from_item+0x215d/0x2580 fs/reiserfs/stree.c:1729 reiserfs_do_truncate+0xa12/0x15b0 fs/reiserfs/stree.c:1973 reiserfs_truncate_file+0x4d6/0x810 fs/reiserfs/inode.c:2310 reiserfs_file_release+0x8c6/0xaa0 fs/reiserfs/file.c:109 __fput+0x3f6/0x8d0 fs/file_table.c:320 task_work_run+0x246/0x300 kernel/task_work.c:203 exit_task_work include/linux/task_work.h:39 [inline] do_exit+0xa6e/0x26a0 kernel/exit.c:871 do_group_exit+0x202/0x2b0 kernel/exit.c:1021 __do_sys_exit_group kernel/exit.c:1032 [inline] __se_sys_exit_group kernel/exit.c:1030 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1030 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f478328aef9 Code: Unable to access opcode bytes at 0x7f478328aecf. RSP: 002b:00007ffc1cd70188 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f478328aef9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 00007f47833062b0 R08: ffffffffffffffb8 R09: 00007ffc1cd703a8 R10: 00007ffc1cd703a8 R11: 0000000000000246 R12: 00007f47833062b0 R13: 0000000000000000 R14: 00007f4783307020 R15: 00007f4783259a50 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__reiserfs_panic+0x13a/0x140 fs/reiserfs/prints.c:390 Code: c7 c1 80 a0 1e 8b 48 0f 44 c8 48 0f 44 d8 48 c7 c7 40 a1 1e 8b 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 80 73 54 97 e8 46 81 83 08 <0f> 0b 0f 1f 40 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 RSP: 0018:ffffc90003cc7100 EFLAGS: 00010246 RAX: 000000000000006e RBX: ffffffff8b1ec060 RCX: c6dea3d75a8b3000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90003cc71f0 R08: ffffffff816e6edc R09: fffff52000798dc1 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8b1ec080 R13: ffffc90003cc7120 R14: ffffffff8cbf2b67 R15: ffff88814ac6c6a8 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d150812068 CR3: 000000000d08e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400