------------[ cut here ]------------ kernel BUG at fs/ocfs2/uptodate.c:509! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 6276 Comm: syz.0.63 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:ocfs2_set_new_buffer_uptodate+0x149/0x170 fs/ocfs2/uptodate.c:509 Code: 80 3c 20 00 74 08 4c 89 f7 e8 63 29 76 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc cc cc e8 48 06 14 fe 90 <0f> 0b e8 40 06 14 fe 90 0f 0b e8 38 06 14 fe 90 0f 0b e8 30 06 14 RSP: 0018:ffffc900066b6628 EFLAGS: 00010287 RAX: ffffffff83ac0748 RBX: ffff888048db89c0 RCX: 0000000000080000 RDX: ffffc90010c0b000 RSI: 00000000000012a4 RDI: 00000000000012a5 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1db484f R12: 1ffff92000cd6cf8 R13: dffffc0000000000 R14: ffff888048fee940 R15: ffff888048fee940 FS: 00007ff178a3d6c0(0000) GS:ffff888126e5a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001dc0 CR3: 0000000028c5e000 CR4: 00000000003526f0 Call Trace: ocfs2_extend_dir+0x115b/0x4850 fs/ocfs2/dir.c:3309 ocfs2_prepare_dx_dir_for_insert fs/ocfs2/dir.c:4232 [inline] ocfs2_prepare_dir_for_insert+0x3d4e/0x5420 fs/ocfs2/dir.c:4288 ocfs2_rename+0x18f6/0x3930 fs/ocfs2/namei.c:1481 vfs_rename+0xbb6/0xee0 fs/namei.c:5929 do_renameat2+0x538/0x8f0 fs/namei.c:6047 __do_sys_rename fs/namei.c:6090 [inline] __se_sys_rename fs/namei.c:6088 [inline] __x64_sys_rename+0x82/0x90 fs/namei.c:6088 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff17a7ff749 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:00007ff178a3d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007ff17aa56090 RCX: 00007ff17a7ff749 RDX: 0000000000000000 RSI: 0000200000000200 RDI: 0000200000000580 RBP: 00007ff17a883f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff17aa56128 R14: 00007ff17aa56090 R15: 00007ffcb4a726d8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_set_new_buffer_uptodate+0x149/0x170 fs/ocfs2/uptodate.c:509 Code: 80 3c 20 00 74 08 4c 89 f7 e8 63 29 76 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc cc cc e8 48 06 14 fe 90 <0f> 0b e8 40 06 14 fe 90 0f 0b e8 38 06 14 fe 90 0f 0b e8 30 06 14 RSP: 0018:ffffc900066b6628 EFLAGS: 00010287 RAX: ffffffff83ac0748 RBX: ffff888048db89c0 RCX: 0000000000080000 RDX: ffffc90010c0b000 RSI: 00000000000012a4 RDI: 00000000000012a5 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1db484f R12: 1ffff92000cd6cf8 R13: dffffc0000000000 R14: ffff888048fee940 R15: ffff888048fee940 FS: 00007ff178a3d6c0(0000) GS:ffff888126e5a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001dc0 CR3: 0000000028c5e000 CR4: 00000000003526f0