WARNING in __rate_control_send

WARNING in __rate_control_send_low
Status: upstream: reported C repro on 2020/10/14 12:01
Reported-by: syzbot+fdc5123366fb9c3fdc6d@syzkaller.appspotmail.com
First crash: 184d, last: 1d11h

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in __rate_control_send_low (log)
Repro: C syz .config

similar bugs (2):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.14	WARNING in __rate_control_send_low	C			4	24d	189d	0/1	upstream: reported C repro on 2020/10/08 02:03
linux-4.19	WARNING in __rate_control_send_low	C			20	14d	177d	0/1	upstream: reported C repro on 2020/10/19 12:45

Sample crash report:

------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0
WARNING: CPU: 0 PID: 0 at net/mac80211/rate.c:375 __rate_control_send_low+0x6aa/0x7e0 net/mac80211/rate.c:375
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.12.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__rate_control_send_low+0x6aa/0x7e0 net/mac80211/rate.c:375
Code: 14 48 89 44 24 18 e8 c5 3e 17 f9 44 8b 44 24 2c 45 89 e9 44 89 e1 48 8b 74 24 18 44 89 f2 48 c7 c7 e0 97 84 8a e8 ac db 65 00 <0f> 0b e9 36 fd ff ff e8 8a 67 5a f9 e9 03 fe ff ff 48 89 df e8 4d
RSP: 0018:ffffc90000007a48 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88801c1465a8 RCX: 0000000000000000
RDX: ffffffff8bcbc400 RSI: ffffffff815b8185 RDI: fffff52000000f3b
RBP: ffff8880391c3208 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815b0eee R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 00000000ffffffff R15: ffff8880391c0d00
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffeda9831e8 CR3: 000000001284d000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rate_control_send_low+0x26d/0x800 net/mac80211/rate.c:400
 rate_control_get_rate+0x1b9/0x5a0 net/mac80211/rate.c:913
 __ieee80211_beacon_get+0xb06/0x1aa0 net/mac80211/tx.c:4901
 ieee80211_beacon_get_tim+0x88/0x910 net/mac80211/tx.c:4928
 ieee80211_beacon_get include/net/mac80211.h:4934 [inline]
 mac80211_hwsim_beacon_tx+0x111/0x910 drivers/net/wireless/mac80211_hwsim.c:1799
 __iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793
 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:829
 mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1852
 __run_hrtimer kernel/time/hrtimer.c:1537 [inline]
 __hrtimer_run_queues+0x609/0xe40 kernel/time/hrtimer.c:1601
 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345
 invoke_softirq kernel/softirq.c:221 [inline]
 __irq_exit_rcu kernel/softirq.c:422 [inline]
 irq_exit_rcu+0x134/0x200 kernel/softirq.c:434
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:137 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline]
RIP: 0010:acpi_idle_do_entry+0x1c9/0x250 drivers/acpi/processor_idle.c:516
Code: 1d 07 6e f8 84 db 75 ac e8 04 ff 6d f8 e8 df ee 73 f8 e9 0c 00 00 00 e8 f5 fe 6d f8 0f 00 2d ae 8a c7 00 e8 e9 fe 6d f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 94 05 6e f8 48 85 db
RSP: 0018:ffffffff8bc07d60 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffffffff8bcbc400 RSI: ffffffff89052717 RDI: 0000000000000000
RBP: ffff88814170f064 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff81791618 R11: 0000000000000000 R12: 0000000000000001
R13: ffff88814170f000 R14: ffff88814170f064 R15: ffff888018dce004
 acpi_idle_enter+0x361/0x500 drivers/acpi/processor_idle.c:647
 cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237
 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351
 call_cpuidle kernel/sched/idle.c:158 [inline]
 cpuidle_idle_call kernel/sched/idle.c:239 [inline]
 do_idle+0x3e1/0x590 kernel/sched/idle.c:300
 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:397
 start_kernel+0x475/0x496 init/main.c:1064
 secondary_startup_64_no_verify+0xb0/0xbb

Crashes (71):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce-selinux-root	2021/04/01 18:36	upstream	d19cc4bf	6a81331a	.config	log	report	syz	C		WARNING in __rate_control_send_low
ci-upstream-kasan-gce-smack-root	2021/02/19 08:14	upstream	f40ddce8	14052202	.config	log	report	syz	C		WARNING in __rate_control_send_low
ci-upstream-kasan-gce-root	2021/02/15 08:22	upstream	f40ddce8	98682e5e	.config	log	report	syz	C		WARNING in __rate_control_send_low
ci-upstream-kasan-gce-smack-root	2021/02/09 11:23	upstream	e0756cfc	2bd9619f	.config	log	report	syz	C		WARNING in __rate_control_send_low
ci-upstream-kasan-gce-root	2021/01/31 18:25	upstream	6642d600	fc9fd31e	.config	log	report	syz	C		WARNING in __rate_control_send_low
ci-upstream-kasan-gce	2021/01/26 22:42	upstream	13391c60	55a7d4df	.config	log	report	syz	C		WARNING in __rate_control_send_low
ci-upstream-linux-next-kasan-gce-root	2021/04/07 05:43	linux-next	9c54130c	6a81331a	.config	log	report	syz	C		WARNING in __rate_control_send_low
ci-upstream-kasan-gce	2020/12/03 22:04	upstream	34816d20	e6b0d314	.config	log	report	syz	C
ci-upstream-kasan-gce	2020/11/28 07:59	upstream	99c710c4	486f93ef	.config	log	report	syz	C
ci-upstream-kasan-gce-386	2020/11/25 02:15	upstream	80145ac2	e34b696c	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2021/04/02 10:26	upstream	ffd9fb54	6a81331a	.config	log	report	syz			WARNING in __rate_control_send_low
ci-upstream-kasan-gce-smack-root	2021/02/19 14:16	upstream	f40ddce8	14052202	.config	log	report	syz			WARNING in __rate_control_send_low
ci-upstream-kasan-gce-root	2021/02/15 17:52	upstream	f40ddce8	98682e5e	.config	log	report	syz			WARNING in __rate_control_send_low
ci-upstream-kasan-gce-smack-root	2021/02/01 04:28	upstream	6642d600	fc9fd31e	.config	log	report	syz			WARNING in __rate_control_send_low
ci-upstream-linux-next-kasan-gce-root	2021/04/07 11:21	linux-next	9c54130c	6a81331a	.config	log	report	syz			WARNING in __rate_control_send_low
ci-upstream-linux-next-kasan-gce-root	2021/03/23 05:01	linux-next	e3128d2f	8092f30d	.config	log	report	syz			WARNING in __rate_control_send_low
ci-upstream-kasan-gce-smack-root	2021/03/29 15:20	upstream	a5e13c6d	a8529b82	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-kasan-gce-smack-root	2021/02/13 01:09	upstream	dcc0b490	98682e5e	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-kasan-gce-selinux-root	2021/02/12 09:28	upstream	dcc0b490	a5f86b15	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-kasan-gce-root	2021/01/22 00:56	upstream	9791581c	d4f4eca5	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-kasan-gce-root	2021/01/20 23:47	upstream	75439bc4	d4f4eca5	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-kasan-gce	2021/01/18 06:24	upstream	a1339d63	fd103621	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-kasan-gce-386	2021/02/13 02:57	upstream	dcc0b490	98682e5e	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-kasan-gce-386	2021/02/10 08:32	upstream	e0756cfc	2bd9619f	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-kasan-gce-386	2021/02/10 07:28	upstream	e0756cfc	2bd9619f	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-this-kasan-gce	2021/03/30 16:28	net	6e5a03bc	6a81331a	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-this-kasan-gce	2021/03/11 06:28	net	47142ed6	c2ca1f2a	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-this-kasan-gce	2021/02/25 23:07	net	8f1c0fd2	76f7fc95	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-this-kasan-gce	2021/01/24 11:13	net	344db93a	52e37319	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-kasan-gce	2021/04/13 19:39	net-next	8ef7adc6	a184b83e	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-kasan-gce	2021/04/03 15:39	net-next	82506665	6a81331a	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-kasan-gce	2021/03/16 19:10	net-next	578ce046	fdb2bb2c	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-kasan-gce	2021/03/14 19:27	net-next	6f162909	cc1cff8f	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-kasan-gce	2021/02/25 06:40	net-next	d310ec03	fcc6d71b	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-kasan-gce	2021/02/12 20:54	net-next	3c5a2fd0	98682e5e	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-kasan-gce	2021/02/10 10:41	net-next	de1db4a6	2bd9619f	.config	log	report			info	WARNING in __rate_control_send_low
ci-upstream-net-kasan-gce	2021/02/02 08:56	net-next	1a2b60f6	19e09687	.config	log	report			info	WARNING in __rate_control_send_low
ci-qemu-upstream	2020/12/09 09:24	upstream	a68a0262	99917735	.config	log	report			info
ci-upstream-kasan-gce-smack-root	2020/12/07 11:46	upstream	0477e928	1190297f	.config	log	report			info
ci-upstream-kasan-gce-smack-root	2020/11/30 10:30	upstream	b6505459	a0092f9d	.config	log	report			info
ci-upstream-kasan-gce-root	2020/11/17 02:58	upstream	9c87c9f4	1bf9a662	.config	log	report			info
ci-upstream-kasan-gce	2020/11/14 05:30	upstream	f01c30de	1bf9a662	.config	log	report			info
ci-upstream-kasan-gce	2020/11/12 23:42	upstream	af5043c8	16fca0c8	.config	log	report			info
ci-upstream-kasan-gce	2020/11/10 09:37	upstream	407ab579	cca87986	.config	log	report			info
ci-upstream-kasan-gce	2020/11/04 22:10	upstream	4ef8451b	64069d48	.config	log	report			info
ci-upstream-kasan-gce	2020/11/04 08:36	upstream	4ef8451b	cba33199	.config	log	report			info
ci-upstream-kasan-gce	2020/10/12 16:40	upstream	bbf5c979	d32b0bbf	.config	log	report			info
ci-upstream-kasan-gce-386	2020/12/05 12:46	upstream	b3298500	50503117	.config	log	report			info
ci-qemu-upstream-386	2020/11/23 02:18	upstream	d5530d82	0d27f508	.config	log	report			info
ci-qemu-upstream-386	2020/10/23 10:05	upstream	f9893351	4e740c00	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/12/29 04:07	net	4bfc4714	8259d56c	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/12/26 01:38	net	1f45dc22	821e0b09	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/12/24 02:32	net	1f45dc22	c2c1d1dd	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/12/23 12:17	net	a0c8be56	c2c1d1dd	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/12/22 01:50	net	54ddbdb0	04201c06	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/11/18 08:19	net	c09c8a27	09323409	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/11/16 19:36	net	e2142ef2	1bf9a662	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/11/16 16:27	net	e2142ef2	1bf9a662	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/11/13 16:04	net	4ee18c17	e1140d25	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/11/11 17:12	net	e87d24fc	cca87986	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/11/08 22:24	net	4e0396c5	64069d48	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/11/06 23:50	net	bf3e7628	64069d48	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/10/22 14:05	net	287d3540	be6b1582	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/10/15 02:53	net	2ef813b8	fc7735a2	.config	log	report			info
ci-upstream-net-kasan-gce	2021/01/11 05:02	net-next	73b7a604	2c1f2513	.config	log	report			info
ci-upstream-net-kasan-gce	2021/01/09 16:41	net-next	09b5b5fb	2c1f2513	.config	log	report			info
ci-upstream-net-kasan-gce	2021/01/01 05:20	net-next	3db1a3fa	79264ae3	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/23 06:59	net-next	3db1a3fa	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/18 11:28	net-next	3db1a3fa	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/17 07:26	net-next	3db1a3fa	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/11/15 13:49	net-next	0064c5c1	1bf9a662	.config	log	report			info