mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6240 at net/mac80211/tdls.c:611 ieee80211_tdls_add_setup_cfm_ies net/mac80211/tdls.c:611 [inline]
WARNING: CPU: 0 PID: 6240 at net/mac80211/tdls.c:611 ieee80211_tdls_add_ies net/mac80211/tdls.c:762 [inline]
WARNING: CPU: 0 PID: 6240 at net/mac80211/tdls.c:611 ieee80211_tdls_build_mgmt_packet_data+0x2e61/0x4010 net/mac80211/tdls.c:984
Modules linked in:
CPU: 0 UID: 0 PID: 6240 Comm: syz.0.215 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ieee80211_tdls_add_setup_cfm_ies net/mac80211/tdls.c:611 [inline]
RIP: 0010:ieee80211_tdls_add_ies net/mac80211/tdls.c:762 [inline]
RIP: 0010:ieee80211_tdls_build_mgmt_packet_data+0x2e61/0x4010 net/mac80211/tdls.c:984
Code: fc ff df e9 9f fe ff ff e8 ec f4 b1 f6 90 0f 0b 90 e9 91 fe ff ff e8 de f4 b1 f6 90 0f 0b 90 e9 83 fe ff ff e8 d0 f4 b1 f6 90 <0f> 0b 90 e9 75 fe ff ff e8 c2 f4 b1 f6 48 c7 c7 f0 73 7e 8f 4c 89
RSP: 0018:ffffc9000cd3f080 EFLAGS: 00010293
RAX: ffffffff8b0dc670 RBX: ffff888058140d80 RCX: ffff888031fea440
RDX: 0000000000000000 RSI: ffffffff8dbaa56d RDI: ffff888031fea440
RBP: ffffc9000cd3f200 R08: 0000000000000000 R09: 000000000000000c
R10: 000000000000000c R11: 0000000000000000 R12: ffff888058142500
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888059568e40
FS:  00007f1bbc6516c0(0000) GS:ffff88808d20d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000021c0 CR3: 000000004c208000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ieee80211_tdls_prep_mgmt_packet+0x3a4/0x820 net/mac80211/tdls.c:1058
 ieee80211_tdls_mgmt+0x32e/0x840 net/mac80211/tdls.c:1299
 rdev_tdls_mgmt net/wireless/rdev-ops.h:932 [inline]
 nl80211_tdls_mgmt+0x4e7/0x770 net/wireless/nl80211.c:13223
 genl_family_rcv_msg_doit+0x212/0x300 net/netlink/genetlink.c:1115
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0x60e/0x790 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2552
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:729
 ____sys_sendmsg+0x505/0x830 net/socket.c:2614
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
 __sys_sendmsg net/socket.c:2700 [inline]
 __do_sys_sendmsg net/socket.c:2705 [inline]
 __se_sys_sendmsg net/socket.c:2703 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1bbb78e929
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:00007f1bbc651038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f1bbb9b5fa0 RCX: 00007f1bbb78e929
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000005
RBP: 00007f1bbb810b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1bbb9b5fa0 R15: 00007fff8e6f5898
 </TASK>