bond0: (slave wlan1): Releasing backup interface ------------[ cut here ]------------ WARNING: CPU: 1 PID: 20090 at net/mac80211/chan.c:2021 ieee80211_link_release_channel+0x154/0x180 net/mac80211/chan.c:2021 Modules linked in: CPU: 1 PID: 20090 Comm: syz.3.4263 Not tainted 6.6.101-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:ieee80211_link_release_channel+0x154/0x180 net/mac80211/chan.c:2021 Code: 7c 2d 00 00 74 08 48 89 df e8 a8 bf ea f7 bf 60 1e 00 00 48 03 3b 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d1 91 83 00 e8 8c 79 93 f7 <0f> 0b eb c5 48 c7 c1 9c b9 4a 8e 80 e1 07 80 c1 03 38 c1 0f 8c 51 RSP: 0018:ffffc9000c5270e8 EFLAGS: 00010246 RAX: ffffffff89f21c04 RBX: ffff888031f81598 RCX: 0000000000080000 RDX: ffffc9000b969000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: 0000000000000000 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d R10: dffffc0000000000 R11: fffffbfff1c9509e R12: ffff888031f82c08 R13: 1ffff110063f02b3 R14: ffff888031f823c0 R15: dffffc0000000000 FS: 00007f735197f6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c24e84e CR3: 0000000025e40000 CR4: 00000000003506e0 Call Trace: unregister_netdevice_many_notify+0x1257/0x1810 net/core/dev.c:11094 unregister_netdevice_many net/core/dev.c:11130 [inline] unregister_netdevice_queue+0x324/0x360 net/core/dev.c:11010 unregister_netdevice include/linux/netdevice.h:3137 [inline] _cfg80211_unregister_wdev+0x16b/0x580 net/wireless/core.c:1215 ieee80211_if_remove+0x1c1/0x2c0 net/mac80211/iface.c:2288 ieee80211_del_iface+0x19/0x20 net/mac80211/cfg.c:202 rdev_del_virtual_intf net/wireless/rdev-ops.h:62 [inline] cfg80211_remove_virtual_intf+0x224/0x3c0 net/wireless/util.c:2754 genl_family_rcv_msg_doit+0x209/0x2f0 net/netlink/genetlink.c:971 genl_family_rcv_msg net/netlink/genetlink.c:1051 [inline] genl_rcv_msg+0x60b/0x790 net/netlink/genetlink.c:1066 netlink_rcv_skb+0x216/0x480 net/netlink/af_netlink.c:2555 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1075 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x751/0x8d0 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x8c1/0xbe0 net/netlink/af_netlink.c:1904 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x5bf/0x950 net/socket.c:2595 ___sys_sendmsg+0x220/0x290 net/socket.c:2649 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2687 [inline] __se_sys_sendmsg+0x1a5/0x270 net/socket.c:2685 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f7350b8eb69 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:00007f735197f038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f7350db5fa0 RCX: 00007f7350b8eb69 RDX: 0000000020008000 RSI: 0000200000000380 RDI: 0000000000000007 RBP: 00007f7350c11df1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7350db5fa0 R15: 00007fff616d96a8