WARNING in ieee80211_ibss_csa

WARNING in ieee80211_ibss_csa_beacon
Status: upstream: reported C repro on 2020/10/08 07:40
Reported-by: syzbot+b6c9fe29aefe68e4ad34@syzkaller.appspotmail.com
First crash: 477d, last: 9h09m

Cause bisection: failed (bisect log)

similar bugs (2):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	WARNING in ieee80211_ibss_csa_beacon	syz		error	197	11h11m	431d	0/1	upstream: reported syz repro on 2020/11/22 05:50
linux-4.14	WARNING in ieee80211_ibss_csa_beacon	C			1	9d11h	445d	0/1	upstream: reported C repro on 2020/11/08 18:28

Sample crash report:

------------[ cut here ]------------
WARNING: CPU: 1 PID: 215 at net/mac80211/ibss.c:504 ieee80211_ibss_csa_beacon+0x4e9/0x5a0 net/mac80211/ibss.c:504
Modules linked in:
CPU: 1 PID: 215 Comm: kworker/u4:4 Not tainted 5.12.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy7 ieee80211_csa_finalize_work
RIP: 0010:ieee80211_ibss_csa_beacon+0x4e9/0x5a0 net/mac80211/ibss.c:504
Code: e8 6c 7b 8b f8 b8 f4 ff ff ff eb 0a e8 60 7b 8b f8 b8 00 01 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 47 7b 8b f8 <0f> 0b b8 ea ff ff ff eb e3 e8 39 7b 8b f8 0f 0b e9 88 fb ff ff 48
RSP: 0018:ffffc900010ffbf0 EFLAGS: 00010293
RAX: ffffffff88ed9309 RBX: ffff88802e7f3450 RCX: ffff888012220000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88803506d8ba R08: dffffc0000000000 R09: fffffbfff1f296cc
R10: fffffbfff1f296cc R11: 0000000000000000 R12: ffff88803506d8c0
R13: ffff88802e7f0580 R14: ffff88803506cc00 R15: ffff88803506d8e0
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f206f039718 CR3: 000000000c48e000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ieee80211_set_after_csa_beacon net/mac80211/cfg.c:3122 [inline]
 __ieee80211_csa_finalize net/mac80211/cfg.c:3178 [inline]
 ieee80211_csa_finalize+0x46f/0x960 net/mac80211/cfg.c:3201
 ieee80211_csa_finalize_work+0xfb/0x140 net/mac80211/cfg.c:3226
 process_one_work+0x789/0xfd0 kernel/workqueue.c:2275
 worker_thread+0xac1/0x1300 kernel/workqueue.c:2421
 kthread+0x39a/0x3c0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Crashes (1001):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce-smack-root	2021/03/24 19:30	upstream	7acac4b3196c	607e3baf	.config	log	report	syz	C		WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/04/17 17:24	linux-next	1216f02e46a4	7e2b734b	.config	log	report	syz	C		WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2020/12/05 02:27	upstream	e87297fa080a	20366b87	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2021/04/16 09:45	upstream	7e25f40eab52	c59079a6	.config	log	report	syz			WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2022/01/27 19:50	upstream	626b2dda7651	64a8e201	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2022/01/27 17:55	upstream	626b2dda7651	64a8e201	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2022/01/27 16:45	upstream	626b2dda7651	64a8e201	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2022/01/27 12:30	upstream	626b2dda7651	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2022/01/26 14:46	upstream	0280e3c58f92	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2022/01/26 05:21	upstream	0280e3c58f92	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2022/01/25 22:03	upstream	0280e3c58f92	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2022/01/25 20:42	upstream	0280e3c58f92	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2022/01/24 23:10	upstream	dd81e1c7d5fb	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2022/01/24 19:40	upstream	dd81e1c7d5fb	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2022/01/24 18:37	upstream	dd81e1c7d5fb	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2022/01/24 10:25	upstream	dd81e1c7d5fb	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2022/01/24 05:26	upstream	dd81e1c7d5fb	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2022/01/23 19:08	upstream	dd81e1c7d5fb	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2022/01/23 06:00	upstream	1c52283265a4	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2022/01/23 04:41	upstream	1c52283265a4	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2022/01/22 17:57	upstream	0809edbae347	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2022/01/22 14:44	upstream	0809edbae347	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2022/01/21 19:58	upstream	9b57f4589857	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2022/01/21 18:07	upstream	9b57f4589857	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2022/01/21 16:12	upstream	9b57f4589857	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2022/01/20 21:37	upstream	fa2e1ba3e9e3	b838eb76	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2022/01/20 13:58	upstream	fa2e1ba3e9e3	5da9499f	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2022/01/20 12:28	upstream	fa2e1ba3e9e3	5da9499f	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2022/01/20 11:21	upstream	fa2e1ba3e9e3	5da9499f	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2022/01/19 13:37	upstream	e9f5cbc0c851	0620189b	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2022/01/18 06:34	upstream	e3a8b6a1e70c	731a2d23	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-qemu-upstream	2022/01/10 02:23	upstream	df0cc57e057f	2ca0d385	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-386	2022/01/25 09:17	upstream	a08b41ab9e2e	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-qemu-upstream-386	2022/01/25 07:25	upstream	a08b41ab9e2e	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-386	2022/01/22 18:45	upstream	0809edbae347	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-net-this-kasan-gce	2022/01/13 11:02	net	ed6ae5ca437d	44d1319a	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-net-kasan-gce	2022/01/26 09:55	net-next	6b0671a23dd6	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-net-kasan-gce	2022/01/22 12:25	net-next	fe8152b38d3a	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-net-kasan-gce	2022/01/22 05:52	net-next	fe8152b38d3a	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/27 20:37	linux-next	0eb96e2c58c0	64a8e201	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/26 19:42	linux-next	74e5dee6a5b9	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/24 21:53	linux-next	74e5dee6a5b9	2cbffd88	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/24 15:52	linux-next	74e5dee6a5b9	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/24 04:17	linux-next	74e5dee6a5b9	214351e1	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/21 05:07	linux-next	c94951012a74	ab3d9f17	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/21 04:01	linux-next	c94951012a74	ab3d9f17	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/21 02:55	linux-next	c94951012a74	ab3d9f17	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/20 18:19	linux-next	7fc5253f5a13	b838eb76	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/20 16:39	linux-next	7fc5253f5a13	b838eb76	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/20 15:12	linux-next	7fc5253f5a13	b838eb76	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/20 06:21	linux-next	7fc5253f5a13	5da9499f	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/20 04:27	linux-next	7fc5253f5a13	5da9499f	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/19 23:51	linux-next	6f59bc242877	5da9499f	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/19 22:12	linux-next	6f59bc242877	5da9499f	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2022/01/19 12:25	linux-next	6f59bc242877	0620189b	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2020/10/07 17:35	upstream	c85fb28b6f99	1880b4a9	.config	log	report			info
ci-upstream-kasan-gce-386	2021/01/17 02:55	upstream	0da0a8a0a0e1	65a7a854	.config	log	report			info