------------[ cut here ]------------
c->control.rates[0].idx < 0
WARNING: ./include/net/mac80211.h:3401 at mac80211_hwsim_write_tsf+0x404/0x590, CPU#1: syz.1.28408/18082
Modules linked in:
CPU: 1 UID: 0 PID: 18082 Comm: syz.1.28408 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:mac80211_hwsim_write_tsf+0x404/0x590
Code: 00 41 89 1c 24 eb 05 e8 ca 62 b3 fa 48 8b 7c 24 10 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d e9 b2 9e a3 04 e8 ad 62 b3 fa 90 <0f> 0b 90 e9 69 fd ff ff 89 d9 80 e1 07 38 c1 0f 8c 7b fc ff ff 48
RSP: 0018:ffffc900290fed90 EFLAGS: 00010283
RAX: ffffffff87130ed3 RBX: ffff8881b3a919b0 RCX: 0000000000080000
RDX: ffffc900093cb000 RSI: 0000000000000267 RDI: 0000000000000268
RBP: ffff888173870f40 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff5200521fda0 R12: ffff888173873220
R13: ffff8881b3a91980 R14: dffffc0000000000 R15: ffffffffffffffff
FS:  00007fa6bb4f66c0(0000) GS:ffff8882a9225000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f53acfea540 CR3: 000000003b2c8000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 mac80211_hwsim_tx_frame_no_nl+0x16b/0x1760
 mac80211_hwsim_tx+0x1784/0x2500
 ieee80211_tx_frags+0x3df/0x890
 __ieee80211_tx+0x267/0x580
 ieee80211_tx+0x312/0x4b0
 ieee80211_monitor_start_xmit+0xb33/0x1280
 dev_hard_start_xmit+0x2cd/0x830
 __dev_queue_xmit+0x1435/0x37f0
 packet_sendmsg+0x3d95/0x5040
 sock_sendmsg_nosec+0x13a/0x180
 __sys_sendto+0x408/0x5a0
 __x64_sys_sendto+0xde/0x100
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa6ba59ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa6bb4f6028 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fa6ba815fa0 RCX: 00007fa6ba59ce59
RDX: 0000000000000030 RSI: 0000200000000000 RDI: 000000000000000d
RBP: 00007fa6ba632e6f R08: 0000200000000380 R09: 0000000000000014
R10: 0000000004000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa6ba816038 R14: 00007fa6ba815fa0 R15: 00007ffd5e8c2388
 </TASK>
