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: 376d, last: 6h45m

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			81	1d14h	331d	0/1	upstream: reported syz repro on 2020/11/22 05:50
linux-4.14	WARNING in ieee80211_ibss_csa_beacon	C			1	28d	344d	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 (498):
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-selinux-root	2021/10/19 01:44	upstream	519d81956ee2	24dc29db	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2021/10/18 22:49	upstream	519d81956ee2	0c5d9412	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-qemu-upstream	2021/10/18 20:44	upstream	519d81956ee2	24dc29db	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/10/18 08:52	upstream	cf52ad5ff16c	0c5d9412	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2021/10/18 04:47	upstream	d999ade1cc86	0c5d9412	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2021/10/17 11:10	upstream	d999ade1cc86	0c5d9412	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/10/17 09:37	upstream	d999ade1cc86	0c5d9412	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2021/10/16 19:26	upstream	304040fb4909	0c5d9412	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/10/16 04:13	upstream	8fe31e0995f0	0c5d9412	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2021/10/15 07:45	upstream	ec681c53f8d2	aab7690b	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/10/14 20:51	upstream	26d657410983	7aa5fe41	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2021/10/14 18:54	upstream	26d657410983	7aa5fe41	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/10/14 17:36	upstream	26d657410983	5462d470	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2021/10/14 15:57	upstream	26d657410983	5462d470	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/10/12 05:42	upstream	fa5878760579	838e7e2c	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/10/11 07:10	upstream	64570fbc14f8	838e7e2c	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2021/10/10 19:12	upstream	efb52a7d9511	838e7e2c	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2021/10/09 13:57	upstream	5d6ab0bb408f	838e7e2c	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2021/10/09 10:38	upstream	5d6ab0bb408f	efe0f24d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/10/07 21:27	upstream	4a16df549d23	efe0f24d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2021/10/07 21:26	upstream	4a16df549d23	efe0f24d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2021/10/07 19:59	upstream	4a16df549d23	efe0f24d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2021/10/07 18:18	upstream	4a16df549d23	efe0f24d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2021/10/07 16:54	upstream	5af4055fa813	efe0f24d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2021/10/07 03:13	upstream	5af4055fa813	62ee0987	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2021/10/05 15:43	upstream	f6274b06e326	0a63fd36	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2021/10/04 08:07	upstream	9e1ff307c779	ce697b49	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2021/10/03 10:01	upstream	7b66f4393ad4	db0f5787	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/10/02 19:50	upstream	ab2a7a35c4e7	db0f5787	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2021/10/02 05:59	upstream	53d5fc89d66a	db0f5787	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/10/01 18:35	upstream	24f67d82c43c	cc80db95	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2021/09/30 22:55	upstream	02d5e016800d	1d849ab4	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2021/09/30 18:25	upstream	02d5e016800d	be530f6c	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-smack-root	2021/09/27 13:20	upstream	5816b3e6577e	78494d16	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2021/09/27 11:55	upstream	5816b3e6577e	78494d16	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/09/26 15:44	upstream	a3b397b4fffb	8cac236e	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2021/09/24 04:28	upstream	f9e36107ec70	8cac236e	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2021/09/23 14:48	upstream	58e2cf5d7946	8cac236e	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2021/09/23 04:23	upstream	cf1d2c3e7e2f	8cac236e	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2021/09/22 20:32	upstream	cf1d2c3e7e2f	8cac236e	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/09/19 22:51	upstream	bc1abb9e55ce	70b76c1d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2021/09/18 02:41	upstream	ddf21bd8ab98	70b76c1d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2021/09/17 19:41	upstream	ddf21bd8ab98	70b76c1d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-selinux-root	2021/09/17 05:02	upstream	bdb575f87217	5b989942	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-root	2021/09/17 03:48	upstream	bdb575f87217	5b989942	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce	2021/09/17 02:38	upstream	bdb575f87217	5b989942	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-qemu-upstream	2021/03/21 17:51	upstream	812da4d39463	4c9a64da	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-386	2021/10/06 11:53	upstream	f6274b06e326	0a63fd36	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-386	2021/09/26 14:21	upstream	a3b397b4fffb	8cac236e	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-kasan-gce-386	2021/09/17 18:15	upstream	ddf21bd8ab98	70b76c1d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-qemu-upstream-386	2021/08/05 19:36	upstream	251a1524293d	d2d6e680	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-net-this-kasan-gce	2021/10/08 06:32	net	1da38549dd64	efe0f24d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-net-kasan-gce	2021/05/01 12:36	net-next	95aafe911db6	77e2b668	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/10/19 00:21	linux-next	60e8840126bd	24dc29db	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/10/17 07:14	linux-next	7c832d2f9b95	0c5d9412	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/10/15 13:01	linux-next	7c832d2f9b95	0c5d9412	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/10/15 11:11	linux-next	7c832d2f9b95	0c5d9412	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/10/12 17:19	linux-next	6d3d22efa090	838e7e2c	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/10/11 09:24	linux-next	d3134eb5de85	838e7e2c	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/10/08 07:46	linux-next	683f29b781ae	efe0f24d	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/10/07 10:53	linux-next	f8dc23b3dc0c	62ee0987	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/10/05 13:52	linux-next	29616f67fcbd	ce697b49	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/10/04 17:01	linux-next	a25006a77348	ce697b49	.config	log	report			info	WARNING in ieee80211_ibss_csa_beacon
ci-upstream-linux-next-kasan-gce-root	2021/10/02 03:04	linux-next	a25006a77348	db0f5787	.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