------------[ cut here ]------------ WARNING: CPU: 0 PID: 4846 at kernel/softirq.c:401 __local_bh_enable_ip+0x182/0x1c0 kernel/softirq.c:-1 Modules linked in: CPU: 0 PID: 4846 Comm: syz.0.93 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 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 34 76 22 8f 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc9000521eaa0 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff884a0a9f RBP: ffffc9000521eb30 R08: ffff88802a5c058b R09: 1ffff110054b80b1 R10: dffffc0000000000 R11: ffffed10054b80b2 R12: 0000000000000000 R13: ffffea000154da40 R14: dffffc0000000000 R15: 1ffff92000a43d54 FS: 00007f3b715f66c0(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c44a51b CR3: 000000007d2bc000 CR4: 00000000003506f0 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+0x44f/0x680 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:3680 [inline] tun_device_event+0xa67/0x1030 drivers/net/tun.c:3700 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+0x131/0x280 net/core/dev.c:8881 do_setlink+0xee5/0x29c0 net/core/rtnetlink.c:2868 rtnl_group_changelink net/core/rtnetlink.c:3375 [inline] __rtnl_newlink net/core/rtnetlink.c:3632 [inline] rtnl_newlink+0x10bc/0x1f90 net/core/rtnetlink.c:3669 rtnetlink_rcv_msg+0x863/0xfb0 net/core/rtnetlink.c:6166 netlink_rcv_skb+0x1ef/0x440 net/netlink/af_netlink.c:2516 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x7ad/0x920 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x8ad/0xbd0 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5ed/0x9a0 net/socket.c:2519 ___sys_sendmsg+0x2a2/0x360 net/socket.c:2573 __sys_sendmsg net/socket.c:2602 [inline] __do_sys_sendmsg net/socket.c:2611 [inline] __se_sys_sendmsg+0x1c3/0x2b0 net/socket.c:2609 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: 0033:0x7f3b733a94d9 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:00007f3b715f6028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f3b73626090 RCX: 00007f3b733a94d9 RDX: 0000000004000c00 RSI: 0000200000000180 RDI: 000000000000000d RBP: 00007f3b7343804e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3b73626128 R14: 00007f3b73626090 R15: 00007ffc009af488