netlink: 64 bytes leftover after parsing attributes in process `syz.0.142'. netlink: 12 bytes leftover after parsing attributes in process `syz.0.142'. ------------[ cut here ]------------ kernel BUG at fs/ocfs2/uptodate.c:509! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 6681 Comm: syz.0.142 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025 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 a3 fb 74 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 2e e9 bd 7f ce 07 e8 68 8d 11 fe 90 <0f> 0b e8 60 8d 11 fe 90 0f 0b e8 58 8d 11 fe 90 0f 0b e8 50 8d 11 RSP: 0018:ffffc9000e5869c8 EFLAGS: 00010287 RAX: ffffffff83ae20a8 RBX: ffff888078bd9670 RCX: 0000000000080000 RDX: ffffc9000bdea000 RSI: 000000000000079f RDI: 00000000000007a0 RBP: 0000000000000001 R08: ffffffff8fa39037 R09: 1ffffffff1f47206 R10: dffffc0000000000 R11: fffffbfff1f47207 R12: 1ffff92001cb0d6c R13: dffffc0000000000 R14: ffff8880599e29f8 R15: ffff8880599e29f8 FS: 00007fab139e16c0(0000) GS:ffff888125c18000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe98b24ff8 CR3: 00000000548a5000 CR4: 0000000000350ef0 Call Trace: ocfs2_extend_dir+0x1172/0x4870 fs/ocfs2/dir.c:3309 ocfs2_prepare_dx_dir_for_insert fs/ocfs2/dir.c:4232 [inline] ocfs2_prepare_dir_for_insert+0x3d7b/0x5450 fs/ocfs2/dir.c:4288 ocfs2_mknod+0x819/0x2050 fs/ocfs2/namei.c:297 ocfs2_mkdir+0x191/0x440 fs/ocfs2/namei.c:659 vfs_mkdir+0x306/0x510 fs/namei.c:4366 do_mkdirat+0x247/0x590 fs/namei.c:4399 __do_sys_mkdirat fs/namei.c:4416 [inline] __se_sys_mkdirat fs/namei.c:4414 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4414 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fab12b8d457 Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 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:00007fab139e0e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007fab139e0ef0 RCX: 00007fab12b8d457 RDX: 00000000000001ff RSI: 00002000000000c0 RDI: 00000000ffffff9c RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00002000000000c0 R13: 00007fab139e0eb0 R14: 0000000000000000 R15: 0000000000000000 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 a3 fb 74 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 2e e9 bd 7f ce 07 e8 68 8d 11 fe 90 <0f> 0b e8 60 8d 11 fe 90 0f 0b e8 58 8d 11 fe 90 0f 0b e8 50 8d 11 RSP: 0018:ffffc9000e5869c8 EFLAGS: 00010287 RAX: ffffffff83ae20a8 RBX: ffff888078bd9670 RCX: 0000000000080000 RDX: ffffc9000bdea000 RSI: 000000000000079f RDI: 00000000000007a0 RBP: 0000000000000001 R08: ffffffff8fa39037 R09: 1ffffffff1f47206 R10: dffffc0000000000 R11: fffffbfff1f47207 R12: 1ffff92001cb0d6c R13: dffffc0000000000 R14: ffff8880599e29f8 R15: ffff8880599e29f8 FS: 00007fab139e16c0(0000) GS:ffff888125c18000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000548a5000 CR4: 0000000000350ef0