netlink: 'syz-executor.3': attribute type 4 has an invalid length. BUG: unable to handle kernel paging request at 0000000707000700 PGD 8cb28067 P4D 8cb28067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8140 Comm: syz-executor.4 Not tainted 4.19.163-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:qlist_move_cache+0x67/0xd0 mm/kasan/quarantine.c:275 Code: 00 00 00 eb 22 49 83 3e 00 74 7d 49 8b 46 08 4c 89 28 4d 89 6e 08 49 c7 45 00 00 00 00 00 49 01 56 10 4d 85 ff 74 56 4d 89 fd <4d> 8b 3f 4c 89 ef e8 be 3e 91 ff 48 c1 e8 0c 48 c1 e0 06 4c 01 e0 RSP: 0018:ffff88808cb4fb78 EFLAGS: 00010006 RAX: ffff888096b06140 RBX: ffff88808cb4fbb0 RCX: ffffea000149df87 RDX: 0000000000001100 RSI: ffffffff812c4f4a RDI: 0000000000000007 RBP: ffff8880a428a300 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000000 R12: ffffea0000000000 R13: 0000000707000700 R14: ffffffff8d253518 R15: 0000000707000700 FS: 0000000002be3940(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000707000700 CR3: 000000008cb27000 CR4: 00000000001426f0 DR0: fffffffffffffffc DR1: 0000000000000009 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: quarantine_remove_cache+0x73/0x100 mm/kasan/quarantine.c:317 shutdown_cache+0xe/0x1e0 mm/slab_common.c:570 kmem_cache_destroy+0x25a/0x2e0 mm/slab_common.c:925 p9_client_destroy+0x250/0x360 net/9p/client.c:1112 v9fs_session_close+0x45/0x2c0 fs/9p/v9fs.c:513 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:233 deactivate_locked_super+0x94/0x160 fs/super.c:329 deactivate_super+0x174/0x1a0 fs/super.c:360 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x460cc7 Code: 64 89 04 25 d0 02 00 00 58 5f ff d0 48 89 c7 e8 2f be ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fffa9302fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000460cc7 RDX: 00000000004032c8 RSI: 0000000000000002 RDI: 00007fffa9303090 RBP: 00000000000e3b51 R08: 0000000000000000 R09: 000000000000000b R10: 0000000000000005 R11: 0000000000000246 R12: 00007fffa9304140 R13: 0000000002be4a60 R14: 0000000000000000 R15: 00000000000e3985 Modules linked in: CR2: 0000000707000700 ---[ end trace 0bc56188ec52e96d ]--- RIP: 0010:qlist_move_cache+0x67/0xd0 mm/kasan/quarantine.c:275 Code: 00 00 00 eb 22 49 83 3e 00 74 7d 49 8b 46 08 4c 89 28 4d 89 6e 08 49 c7 45 00 00 00 00 00 49 01 56 10 4d 85 ff 74 56 4d 89 fd <4d> 8b 3f 4c 89 ef e8 be 3e 91 ff 48 c1 e8 0c 48 c1 e0 06 4c 01 e0 RSP: 0018:ffff88808cb4fb78 EFLAGS: 00010006 RAX: ffff888096b06140 RBX: ffff88808cb4fbb0 RCX: ffffea000149df87 RDX: 0000000000001100 RSI: ffffffff812c4f4a RDI: 0000000000000007 RBP: ffff8880a428a300 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000000 R12: ffffea0000000000 R13: 0000000707000700 R14: ffffffff8d253518 R15: 0000000707000700 FS: 0000000002be3940(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000707000700 CR3: 000000008cb27000 CR4: 00000000001426f0 DR0: fffffffffffffffc DR1: 0000000000000009 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400