| 5| *3.6* [2 6 0x0 SD], item_len 44, item_location 340, free_space(entry_count) 65535 | mode | size | nlinks | first direct | mtime 0100000 | 24 | 1 | 0 | 1677257069 =================================================================== REISERFS panic (device loop0): PAP-5580 reiserfs_cut_from_item: item to convert does not exist ([2 6 0x1 IND]) ------------[ cut here ]------------ kernel BUG at fs/reiserfs/prints.c:390! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5607 Comm: syz-executor.0 Not tainted 6.2.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 RIP: 0010:__reiserfs_panic+0x116/0x120 Code: c7 c1 80 c8 fb 89 48 0f 44 c8 48 0f 44 d8 48 c7 c7 40 c9 fb 89 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 00 f1 a0 90 e8 4a d7 95 07 <0f> 0b 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 55 48 89 e5 41 57 41 56 RSP: 0018:ffffc90004c872e0 EFLAGS: 00010246 RAX: 000000000000006e RBX: ffffffff89fbe740 RCX: 4d6bf7bd6ed07d00 RDX: 0000000000000001 RSI: ffffffff8a3a0fa0 RDI: 0000000000000001 RBP: ffffc90004c873b0 R08: dffffc0000000000 R09: fffff52000990e19 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000990f38 R13: 0000000000000004 R14: ffffffff8b82eb3e R15: ffff888025a126a8 FS: 00005555562b3400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9890515829 CR3: 0000000020237000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: reiserfs_cut_from_item+0x1c00/0x1fb0 reiserfs_do_truncate+0x85f/0x1260 reiserfs_truncate_file+0x2e4/0x610 reiserfs_file_release+0x460/0x6e0 __fput+0x33f/0x720 task_work_run+0x20a/0x290 exit_to_user_mode_loop+0xd1/0xf0 exit_to_user_mode_prepare+0xb1/0x140 syscall_exit_to_user_mode+0x54/0x2d0 do_syscall_64+0x4d/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f989043df5b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffd1c9d3af0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f989043df5b RDX: 00007f9890001608 RSI: ffffffffffffffff RDI: 0000000000000005 RBP: 00007f98905ad980 R08: 0000000000000000 R09: 00007f9890000000 R10: 00007f9890001610 R11: 0000000000000293 R12: 0000000000012df3 R13: 00007ffd1c9d3bf0 R14: 00007f98905abf80 R15: 0000000000000032 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__reiserfs_panic+0x116/0x120 Code: c7 c1 80 c8 fb 89 48 0f 44 c8 48 0f 44 d8 48 c7 c7 40 c9 fb 89 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 00 f1 a0 90 e8 4a d7 95 07 <0f> 0b 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 55 48 89 e5 41 57 41 56 RSP: 0018:ffffc90004c872e0 EFLAGS: 00010246 RAX: 000000000000006e RBX: ffffffff89fbe740 RCX: 4d6bf7bd6ed07d00 RDX: 0000000000000001 RSI: ffffffff8a3a0fa0 RDI: 0000000000000001 RBP: ffffc90004c873b0 R08: dffffc0000000000 R09: fffff52000990e19 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000990f38 R13: 0000000000000004 R14: ffffffff8b82eb3e R15: ffff888025a126a8 FS: 00005555562b3400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9890515829 CR3: 0000000020237000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400