bond0: (slave wlan1): Releasing backup interface mac80211_hwsim hwsim3 wlan1 (unregistering): left allmulticast mode ------------[ cut here ]------------ WARNING: CPU: 0 PID: 19587 at net/mac80211/chan.c:2022 ieee80211_link_release_channel+0x154/0x180 net/mac80211/chan.c:2022 Modules linked in: CPU: 0 PID: 19587 Comm: syz.3.3169 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:ieee80211_link_release_channel+0x154/0x180 net/mac80211/chan.c:2022 Code: 7c 2d 00 00 74 08 48 89 df e8 68 02 e9 f7 bf 60 1e 00 00 48 03 3b 5b 41 5c 41 5d 41 5e 41 5f 5d e9 11 c8 83 00 e8 8c 93 91 f7 <0f> 0b eb c5 48 c7 c1 ec c2 4a 8e 80 e1 07 80 c1 03 38 c1 0f 8c 51 RSP: 0018:ffffc900034d70e8 EFLAGS: 00010287 RAX: ffffffff89f40cf4 RBX: ffff88805ef79598 RCX: 0000000000080000 RDX: ffffc9000dfa4000 RSI: 000000000007c02a RDI: 000000000007c02b RBP: 0000000000000000 R08: ffffffff8e4a8e2f R09: 1ffffffff1c951c5 R10: dffffc0000000000 R11: fffffbfff1c951c6 R12: ffff88805ef7ac08 R13: 1ffff1100bdef2b3 R14: ffff88805ef7a3c0 R15: dffffc0000000000 FS: 00007fef201d56c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffffd CR3: 00000000617c0000 CR4: 00000000003506f0 Call Trace: unregister_netdevice_many_notify+0x1257/0x1810 net/core/dev.c:11106 unregister_netdevice_many net/core/dev.c:11142 [inline] unregister_netdevice_queue+0x324/0x360 net/core/dev.c:11022 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:2296 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:2545 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1075 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x751/0x8d0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8c1/0xbe0 net/netlink/af_netlink.c:1894 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: 0033:0x7fef21f8f749 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:00007fef201d5038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fef221e6090 RCX: 00007fef21f8f749 RDX: 0000000000000000 RSI: 0000200000000200 RDI: 0000000000000005 RBP: 00007fef22013f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fef221e6128 R14: 00007fef221e6090 R15: 00007ffe3fc8ece8