netlink: 'syz.3.1066': attribute type 13 has an invalid length. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 9527 at kernel/softirq.c:401 __local_bh_enable_ip+0x182/0x1c0 kernel/softirq.c:-1 Modules linked in: CPU: 1 PID: 9527 Comm: syz.3.1066 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:__local_bh_enable_ip+0x182/0x1c0 kernel/softirq.c:401 Code: 48 8b 04 25 28 00 00 00 48 3b 44 24 48 75 4e 48 8d 65 e0 5b 41 5c 41 5e 41 5f 5d c3 0f 0b e9 f3 fe ff ff e8 40 00 00 00 eb a5 <0f> 0b e9 20 ff ff ff 48 c7 c1 a4 28 20 8e 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc900035e69e0 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff88421776 RBP: ffffc900035e6a70 R08: ffff888027bfc58b R09: 1ffff11004f7f8b1 R10: dffffc0000000000 R11: ffffed1004f7f8b2 R12: ffff888027bfc588 R13: ffff888027bfc580 R14: dffffc0000000000 R15: 1ffff920006bcd3c FS: 00007fbd325d96c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000bce000 CR3: 000000006630f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: spin_unlock_bh include/linux/spinlock.h:396 [inline] page_pool_producer_unlock net/core/page_pool.c:156 [inline] page_pool_recycle_in_ring net/core/page_pool.c:549 [inline] page_pool_put_defragged_page+0x436/0x660 net/core/page_pool.c:631 tun_ptr_free drivers/net/tun.c:617 [inline] __ptr_ring_swap_queue include/linux/ptr_ring.h:570 [inline] ptr_ring_resize_multiple include/linux/ptr_ring.h:641 [inline] tun_queue_resize drivers/net/tun.c:3666 [inline] tun_device_event+0xa62/0x1020 drivers/net/tun.c:3686 notifier_call_chain kernel/notifier.c:87 [inline] raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:455 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline] call_netdevice_notifiers net/core/dev.c:2066 [inline] dev_change_tx_queue_len+0x12a/0x280 net/core/dev.c:8862 do_setlink+0xec3/0x3e60 net/core/rtnetlink.c:2859 rtnl_group_changelink net/core/rtnetlink.c:3366 [inline] __rtnl_newlink net/core/rtnetlink.c:3623 [inline] rtnl_newlink+0x10c9/0x20a0 net/core/rtnetlink.c:3660 rtnetlink_rcv_msg+0x87c/0xfc0 net/core/rtnetlink.c:6157 netlink_rcv_skb+0x1fb/0x450 net/netlink/af_netlink.c:2511 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x74d/0x8d0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x8ad/0xbd0 net/netlink/af_netlink.c:1872 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5be/0x970 net/socket.c:2518 ___sys_sendmsg+0x2a2/0x360 net/socket.c:2572 __sys_sendmsg net/socket.c:2601 [inline] __do_sys_sendmsg net/socket.c:2610 [inline] __se_sys_sendmsg+0x1bb/0x2a0 net/socket.c:2608 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fbd3179cdd9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbd325d9028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fbd31a16090 RCX: 00007fbd3179cdd9 RDX: 0000000004000c00 RSI: 0000200000000180 RDI: 000000000000000c RBP: 00007fbd31832d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbd31a16128 R14: 00007fbd31a16090 R15: 00007ffe6e26c5a8