netdevsim netdevsim4 netdevsim2: unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim4 netdevsim3: unset [1, 0] type 2 family 0 port 6081 - 0
------------[ cut here ]------------
WARNING: CPU: 2 PID: 7818 at kernel/kcov.c:872 kcov_remote_start+0xfd/0x6e0 kernel/kcov.c:872
Modules linked in:
CPU: 2 UID: 0 PID: 7818 Comm: syz.4.504 Not tainted 6.14.0-rc2-syzkaller-00041-g4dc1d1bec898 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:kcov_remote_start+0xfd/0x6e0 kernel/kcov.c:872
Code: 65 4c 8b 3d 55 dd 4a 7e 4d 89 7c 24 28 8b 95 08 16 00 00 65 8b 05 4b dd 4a 7e a9 00 01 ff 00 75 53 81 e2 ff ff ff bf 74 4b 90 <0f> 0b 90 e8 5b c9 8d 09 44 8b 1d 44 fb c8 18 89 c0 48 03 1c c5 e0
RSP: 0018:ffffc9000626ea70 EFLAGS: 00010002
RAX: 0000000080000200 RBX: 000000000002d368 RCX: 0000000000000001
RDX: 0000000000000002 RSI: ffffffff8b6ce8c0 RDI: ffffffff8bd2d6e0
RBP: ffff88802263a440 R08: 0000000000000000 R09: fffffbfff2dc49a8
R10: ffffffff96e24d47 R11: 000000000000002b R12: ffff88802b62d368
R13: 0000000000000200 R14: 0000000000000000 R15: ffff88802263a440
FS:  0000000000000000(0000) GS:ffff88802b600000(0063) knlGS:00000000f50d6b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000574f04c0 CR3: 00000000749fc000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kcov_remote_start_common include/linux/kcov.h:50 [inline]
 ieee80211_rx_list+0x460/0x2990 net/mac80211/rx.c:5465
 ieee80211_rx_napi+0xdd/0x400 net/mac80211/rx.c:5506
 ieee80211_rx include/net/mac80211.h:5172 [inline]
 ieee80211_handle_queued_frames+0xd5/0x130 net/mac80211/main.c:441
 ieee80211_stop_device+0x32/0x110 net/mac80211/util.c:1573
 ieee80211_do_stop+0x1a2f/0x2520 net/mac80211/iface.c:716
 ieee80211_stop+0x11d/0x660 net/mac80211/iface.c:776
 __dev_close_many+0x1c5/0x360 net/core/dev.c:1688
 __dev_close net/core/dev.c:1700 [inline]
 __dev_change_flags+0x4dc/0x720 net/core/dev.c:9170
 dev_change_flags+0x8f/0x160 net/core/dev.c:9244
 do_setlink.constprop.0+0x17b9/0x3f20 net/core/rtnetlink.c:3118
 rtnl_group_changelink net/core/rtnetlink.c:3746 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3893 [inline]
 rtnl_newlink+0x17f4/0x1d70 net/core/rtnetlink.c:4021
 rtnetlink_rcv_msg+0x95b/0xea0 net/core/rtnetlink.c:6911
 netlink_rcv_skb+0x165/0x410 net/netlink/af_netlink.c:2543
 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
 netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1348
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1892
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:733 [inline]
 ____sys_sendmsg+0x9ae/0xb40 net/socket.c:2573
 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2627
 __sys_sendmsg+0x16e/0x220 net/socket.c:2659
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7fb3579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f50d655c EFLAGS: 00000296 ORIG_RAX: 0000000000000172
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000080000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	10 06                	adc    %al,(%rsi)
   2:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   6:	10 07                	adc    %al,(%rdi)
   8:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   c:	10 08                	adc    %cl,(%rax)
   e:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  1e:	00 51 52             	add    %dl,0x52(%rcx)
  21:	55                   	push   %rbp
  22:	89 e5                	mov    %esp,%ebp
  24:	0f 34                	sysenter
  26:	cd 80                	int    $0x80
* 28:	5d                   	pop    %rbp <-- trapping instruction
  29:	5a                   	pop    %rdx
  2a:	59                   	pop    %rcx
  2b:	c3                   	ret
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	90                   	nop
  2f:	90                   	nop
  30:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi