(syz.0.15,5818,0):ocfs2_truncate_log_append:5874 ERROR: bug expression: tl_count > ocfs2_truncate_recs_per_inode(osb->sb) || tl_count == 0 (syz.0.15,5818,0):ocfs2_truncate_log_append:5874 ERROR: Truncate record count on #77 invalid wanted 39, actual 2087 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/alloc.c:5874! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5818 Comm: syz.0.15 Not tainted 6.12.0-rc7-syzkaller-ge8bdb3c8be08 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:ocfs2_truncate_log_append+0x9a8/0x9c0 fs/ocfs2/alloc.c:5868 Code: bc 24 a0 00 00 00 48 c7 c6 11 b8 12 8e ba f2 16 00 00 48 c7 c1 00 1b 49 8c 4d 89 f0 41 89 d9 50 e8 dd 91 20 00 48 83 c4 08 90 <0f> 0b e8 81 61 11 fe 90 0f 0b e8 79 61 11 fe 90 0f 0b e8 61 4e 44 RSP: 0018:ffffc9000291ef40 EFLAGS: 00010292 RAX: 822b4d6f0a0cf900 RBX: 0000000000000027 RCX: 822b4d6f0a0cf900 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000291f070 R08: ffffffff8174b13c R09: 1ffff11003f8519a R10: dffffc0000000000 R11: ffffed1003f8519b R12: 1ffff11007fc3f58 R13: ffffff3800000000 R14: 000000000000004d R15: ffff8880449ec008 FS: 00007f23060d76c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000f000 CR3: 000000003f70a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_remove_btree_range+0x1303/0x1860 fs/ocfs2/alloc.c:5789 ocfs2_remove_inode_range+0xff3/0x29f0 fs/ocfs2/file.c:1907 ocfs2_reflink_remap_extent fs/ocfs2/refcounttree.c:4537 [inline] ocfs2_reflink_remap_blocks+0xcd4/0x1f30 fs/ocfs2/refcounttree.c:4684 ocfs2_remap_file_range+0x5fa/0x8d0 fs/ocfs2/file.c:2736 vfs_copy_file_range+0xc07/0x1510 fs/read_write.c:1615 __do_sys_copy_file_range fs/read_write.c:1705 [inline] __se_sys_copy_file_range+0x3f2/0x5d0 fs/read_write.c:1668 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f230537e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f23060d7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146 RAX: ffffffffffffffda RBX: 00007f2305535f80 RCX: 00007f230537e719 RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f23053f132e R08: 000000000000d8c2 R09: 0000000000000000 R10: 0000000020000640 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f2305535f80 R15: 00007ffc8d56af98 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_truncate_log_append+0x9a8/0x9c0 fs/ocfs2/alloc.c:5868 Code: bc 24 a0 00 00 00 48 c7 c6 11 b8 12 8e ba f2 16 00 00 48 c7 c1 00 1b 49 8c 4d 89 f0 41 89 d9 50 e8 dd 91 20 00 48 83 c4 08 90 <0f> 0b e8 81 61 11 fe 90 0f 0b e8 79 61 11 fe 90 0f 0b e8 61 4e 44 RSP: 0018:ffffc9000291ef40 EFLAGS: 00010292 RAX: 822b4d6f0a0cf900 RBX: 0000000000000027 RCX: 822b4d6f0a0cf900 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000291f070 R08: ffffffff8174b13c R09: 1ffff11003f8519a R10: dffffc0000000000 R11: ffffed1003f8519b R12: 1ffff11007fc3f58 R13: ffffff3800000000 R14: 000000000000004d R15: ffff8880449ec008 FS: 00007f23060d76c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000f000 CR3: 000000003f70a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400