syzbot

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WARNING: CPU: 1 PID: 5009 at kernel/kcov.c:844 __refcount_dec_and_test include/linux/refcount.h:315 [inline]
WARNING: CPU: 1 PID: 5009 at kernel/kcov.c:844 refcount_dec_and_test include/linux/refcount.h:333 [inline]
WARNING: CPU: 1 PID: 5009 at kernel/kcov.c:844 kcov_put kernel/kcov.c:415 [inline]
WARNING: CPU: 1 PID: 5009 at kernel/kcov.c:844 kcov_remote_start+0x357/0x480 kernel/kcov.c:888
Modules linked in:
CPU: 1 PID: 5009 Comm: syz.2.145 Not tainted 5.15.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:kcov_remote_start+0x357/0x480 kernel/kcov.c:844
Code: e8 de e2 3d 00 4c 89 ff e8 76 3e 49 00 e9 e8 fc ff ff 0f 8d e2 fc ff ff 4c 89 ff be 03 00 00 00 e8 ae 48 93 02 e9 d0 fc ff ff <0f> 0b 41 f7 c6 00 02 00 00 74 05 e8 99 73 06 00 48 c7 04 24 00 00
RSP: 0018:ffffc9000303eb78 EFLAGS: 00010002
RAX: 0000000080000200 RBX: ffff88802a0d3b80 RCX: 0000000000000002
RDX: ffffc9000edfc000 RSI: 000000000002422b RDI: 000000000002422c
RBP: 0000000000000000 R08: ffffffff818707b0 R09: ffffffff89d290b7
R10: 0000000000000004 R11: ffff88802a0d3b80 R12: ffff88805fa658c0
R13: ffff888020af0da0 R14: 0000000000000246 R15: dffffc0000000000
FS:  00007f6edab6a6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd825e0b290 CR3: 0000000054749000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000097 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kcov_remote_start_common include/linux/kcov.h:50 [inline]
 ieee80211_rx_list+0x5cc/0x2a60 net/mac80211/rx.c:4964
 ieee80211_rx_napi+0x15f/0x380 net/mac80211/rx.c:5005
 ieee80211_rx include/net/mac80211.h:4571 [inline]
 ieee80211_handle_queued_frames+0x103/0x1b0 net/mac80211/main.c:237
 ieee80211_stop_device+0x16/0x80 net/mac80211/util.c:2150
 ieee80211_do_stop+0x1acb/0x2020 net/mac80211/iface.c:636
 ieee80211_stop+0x125/0x190 net/mac80211/iface.c:664
 __dev_close_many+0x2dd/0x3c0 net/core/dev.c:1590
 dev_close_many+0x22a/0x530 net/core/dev.c:1615
 dev_close+0x1b3/0x2b0 net/core/dev.c:1641
 nl80211_del_interface+0xde/0x370 net/wireless/nl80211.c:4109
 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
 genl_rcv_msg+0xfbd/0x14a0 net/netlink/genetlink.c:792
 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2489
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x7b6/0x980 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0xa30/0xd60 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436
 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2490
 __sys_sendmsg net/socket.c:2519 [inline]
 __do_sys_sendmsg net/socket.c:2528 [inline]
 __se_sys_sendmsg+0x19a/0x260 net/socket.c:2526
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6edcd1ad29
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:00007f6edab6a038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f6edcf0b080 RCX: 00007f6edcd1ad29
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 00007f6edcd96b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6edcf0b080 R15: 00007ffc5a3aaa28
 </TASK>