------------[ cut here ]------------ kernel BUG at fs/ocfs2/suballoc.c:2543! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 6454 Comm: syz-executor Not tainted 6.14.0-rc5-syzkaller-g848e07631744 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:_ocfs2_free_suballoc_bits+0x118b/0x1470 fs/ocfs2/suballoc.c:2543 Code: 07 80 c1 03 38 c1 0f 8c fc fb ff ff 48 89 fb e8 3b bc 61 fe 48 89 df e9 ec fb ff ff e8 2e 07 fd fd 90 0f 0b e8 26 07 fd fd 90 <0f> 0b f3 0f 1e fa 65 44 8b 3d 63 0d 3f 7c bf 07 00 00 00 44 89 fe RSP: 0018:ffffc900037b7700 EFLAGS: 00010293 RAX: ffffffff83c4c79a RBX: 0000000000000e00 RCX: ffff8880258b1e00 RDX: 0000000000000000 RSI: 0000000000000e00 RDI: 00000000ffff9008 RBP: ffffc900037b78a8 R08: ffffffff83c4b783 R09: 00000000ffff8880 R10: dffffc0000000000 R11: fffffbfff207794f R12: dffffc0000000000 R13: 00000000ffff9008 R14: ffff888011bc9e00 R15: 0000000000000e00 FS: 0000555565872500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff93661d78 CR3: 0000000034232000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: _ocfs2_free_clusters+0x5ef/0xac0 fs/ocfs2/suballoc.c:2646 ocfs2_replay_truncate_records fs/ocfs2/alloc.c:5971 [inline] __ocfs2_flush_truncate_log+0x760/0x1240 fs/ocfs2/alloc.c:6054 ocfs2_flush_truncate_log+0x4f/0x70 fs/ocfs2/alloc.c:6076 ocfs2_sync_fs+0x125/0x390 fs/ocfs2/super.c:406 sync_filesystem+0x1c8/0x230 fs/sync.c:66 generic_shutdown_super+0x72/0x2d0 fs/super.c:621 kill_block_super+0x44/0x90 fs/super.c:1710 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1413 task_work_run+0x24f/0x310 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7feb4997f327 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fff93662528 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007feb499f0134 RCX: 00007feb4997f327 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff936625e0 RBP: 00007fff936625e0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff93663660 R13: 00007feb499f0134 R14: 000000000001b483 R15: 00007fff936636a0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:_ocfs2_free_suballoc_bits+0x118b/0x1470 fs/ocfs2/suballoc.c:2543 Code: 07 80 c1 03 38 c1 0f 8c fc fb ff ff 48 89 fb e8 3b bc 61 fe 48 89 df e9 ec fb ff ff e8 2e 07 fd fd 90 0f 0b e8 26 07 fd fd 90 <0f> 0b f3 0f 1e fa 65 44 8b 3d 63 0d 3f 7c bf 07 00 00 00 44 89 fe RSP: 0018:ffffc900037b7700 EFLAGS: 00010293 RAX: ffffffff83c4c79a RBX: 0000000000000e00 RCX: ffff8880258b1e00 RDX: 0000000000000000 RSI: 0000000000000e00 RDI: 00000000ffff9008 RBP: ffffc900037b78a8 R08: ffffffff83c4b783 R09: 00000000ffff8880 R10: dffffc0000000000 R11: fffffbfff207794f R12: dffffc0000000000 R13: 00000000ffff9008 R14: ffff888011bc9e00 R15: 0000000000000e00 FS: 0000555565872500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0023e9000 CR3: 0000000034232000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400