syzbot

mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8564 at net/mac80211/driver-ops.c:473 drv_link_info_changed+0x14c/0x870 net/mac80211/driver-ops.c:468
Modules linked in:
CPU: 1 UID: 0 PID: 8564 Comm: syz.1.815 Not tainted 6.15.0-rc4-syzkaller-00147-gebd297a2affa #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
RIP: 0010:drv_link_info_changed+0x14c/0x870 net/mac80211/driver-ops.c:468
Code: 83 fb 01 75 1f e8 74 3a fa f6 eb 32 e8 6d 3a fa f6 eb 2b 83 fb 03 74 21 83 fb 05 75 07 e8 5c 3a fa f6 eb 1a e8 55 3a fa f6 90 <0f> 0b 90 e9 b5 01 00 00 e8 47 3a fa f6 eb 05 e8 40 3a fa f6 4d 8d
RSP: 0018:ffffc9000a83ecc8 EFLAGS: 00010283
RAX: ffffffff8ac585fb RBX: 0000000080000000 RCX: 0000000000080000
RDX: ffffc9000b99a000 RSI: 00000000000005cc RDI: 00000000000005cd
RBP: ffff88802f5c8e40 R08: ffff88802ee85a00 R09: 0000000000000004
R10: 0000000000000005 R11: 0000000000000002 R12: ffff88802ff41730
R13: ffff88802ff40d80 R14: 0000000000000200 R15: ffff88802ff42a28
FS:  00007fce24bb56c0(0000) GS:ffff8881261cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3e182c CR3: 0000000026b9a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ieee80211_offchannel_stop_vifs+0x249/0x550 net/mac80211/offchannel.c:122
 ieee80211_start_sw_scan net/mac80211/scan.c:559 [inline]
 __ieee80211_start_scan+0x1a2c/0x1dc0 net/mac80211/scan.c:851
 rdev_scan+0x14d/0x2f0 net/wireless/rdev-ops.h:467
 cfg80211_conn_scan+0xb2d/0xed0 net/wireless/sme.c:135
 cfg80211_sme_connect net/wireless/sme.c:630 [inline]
 cfg80211_connect+0x1899/0x21a0 net/wireless/sme.c:1525
 nl80211_connect+0x17bc/0x1cd0 net/wireless/nl80211.c:12260
 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+0x219/0x490 net/netlink/af_netlink.c:2534
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
 netlink_unicast+0x758/0x8d0 net/netlink/af_netlink.c:1339
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:727
 ____sys_sendmsg+0x505/0x830 net/socket.c:2566
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620
 __sys_sendmsg net/socket.c:2652 [inline]
 __do_sys_sendmsg net/socket.c:2657 [inline]
 __se_sys_sendmsg net/socket.c:2655 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fce23d8e969
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:00007fce24bb5038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fce23fb5fa0 RCX: 00007fce23d8e969
RDX: 0000000000000000 RSI: 00002000000001c0 RDI: 0000000000000006
RBP: 00007fce23e10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fce23fb5fa0 R15: 00007fce240dfa28
 </TASK>