WARNING in sta_info

WARNING in sta_info_alloc
Status: upstream: reported C repro on 2020/10/06 08:08
Reported-by: syzbot+45d7c243c006f39dc55a@syzkaller.appspotmail.com
First crash: 146d, last: 21d

Cause bisection: introduced by (bisect log) :
commit 643c332d519bdfbf80d21f40d1c0aa0ccf3ec1cb
Author: Zi Shen Lim <zlim.lnx@gmail.com>
Date: Thu Jun 9 04:18:50 2016 +0000

arm64: bpf: optimize LD_ABS, LD_IND

Crash: KASAN: null-ptr-deref Read (log)
Repro: C syz .config

similar bugs (2):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	WARNING in sta_info_alloc	C			14	25d	146d	0/1	upstream: reported C repro on 2020/10/05 20:21
linux-4.14	WARNING in sta_info_alloc	C			8	4d21h	146d	0/1	upstream: reported C repro on 2020/10/05 12:47

Sample crash report:

------------[ cut here ]------------
WARNING: CPU: 0 PID: 8454 at net/mac80211/ieee80211_i.h:1457 ieee80211_get_sband net/mac80211/ieee80211_i.h:1457 [inline]
WARNING: CPU: 0 PID: 8454 at net/mac80211/ieee80211_i.h:1457 sta_info_alloc+0x1923/0x1fa0 net/mac80211/sta_info.c:487
Modules linked in:
CPU: 1 PID: 8454 Comm: syz-executor886 Not tainted 5.11.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ieee80211_get_sband net/mac80211/ieee80211_i.h:1457 [inline]
RIP: 0010:sta_info_alloc+0x1923/0x1fa0 net/mac80211/sta_info.c:487
Code: 85 8f 03 00 00 49 8b 9f 60 01 00 00 e9 fe f6 ff ff e8 51 7b 23 f9 8b 5c 24 08 83 e3 01 83 c3 01 e9 a5 fb ff ff e8 3d 7b 23 f9 <0f> 0b e8 a6 2d ac 00 31 ff 89 c3 89 c6 e8 4b 81 23 f9 85 db 74 1d
RSP: 0018:ffffc90001caf3e0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888027d90240 RSI: ffffffff884f5853 RDI: 0000000000000003
RBP: ffff888039920c80 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff884f5790 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000008 R14: dffffc0000000000 R15: ffff88801c26a000
FS:  0000000001c59300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000200 CR3: 000000001256e000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ieee80211_add_station+0x28c/0x660 net/mac80211/cfg.c:1674
 rdev_add_station net/wireless/rdev-ops.h:190 [inline]
 nl80211_new_station+0xdd0/0x13c0 net/wireless/nl80211.c:6650
 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:739
 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
 genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:800
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2399
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2432
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4408f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc7272a478 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000031 RCX: 00000000004408f9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000000 R09: 00007ffc7272a4a8
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc7272a4d0
R13: 00007ffc7272a4c2 R14: 00000000004b7430 R15: 00000000004b73c0

Crashes (114):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce-selinux-root	2021/02/07 05:03	upstream	964d069f	0655e081	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-selinux-root	2021/02/06 01:37	upstream	dd86e7fa	23a562df	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/02/04 07:43	upstream	3afe9076	624dad51	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-selinux-root	2021/02/03 20:09	upstream	3aaf0a27	624dad51	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-selinux-root	2021/02/03 14:59	upstream	3aaf0a27	624dad51	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/02/01 23:56	upstream	1048ba83	e6b95f32	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/02/01 20:35	upstream	1048ba83	e6b95f32	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/01/31 21:05	upstream	6642d600	fc9fd31e	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/01/31 20:16	upstream	6642d600	fc9fd31e	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/01/25 21:22	upstream	6ee1d745	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/01/24 11:23	upstream	e1ae4b0b	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/01/23 19:59	upstream	fe75a218	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/01/23 19:08	upstream	fe75a218	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-net-this-kasan-gce	2021/01/25 09:35	net	344db93a	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/25 07:20	net-next	a61e4b60	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce	2020/12/03 17:07	upstream	34816d20	e6b0d314	.config	log	report	syz	C
ci-upstream-kasan-gce	2020/10/05 13:53	upstream	549738f1	5ef9c291	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/10/05 13:41	upstream	549738f1	5ef9c291	.config	log	report	syz	C
ci-upstream-kasan-gce-386	2020/11/27 00:09	upstream	4df91062	1d2b823e	.config	log	report	syz	C
ci-upstream-kasan-gce-386	2020/11/20 19:54	upstream	4d02da97	740ff461	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/10/13 12:12	net	64a632da	bd69ee0d	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/10/10 08:10	net	923527dc	93817d89	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/10/10 05:50	net	923527dc	93817d89	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/10/09 18:35	net	3fdd47c3	d81b165e	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/10/09 16:29	net	3fdd47c3	d81b165e	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/10/10 22:24	net-next	c77fb07f	4a77ae0b	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/10/07 03:32	net-next	8b0308fe	1880b4a9	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/10/06 01:50	net-next	c2568c8c	1880b4a9	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/10/05 19:39	net-next	c2568c8c	1880b4a9	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/10/05 18:51	net-next	c2568c8c	1880b4a9	.config	log	report	syz	C
ci-upstream-kasan-gce	2021/01/31 05:58	upstream	8c947645	fc9fd31e	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/01/30 06:11	upstream	0e9bcda5	fc9fd31e	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/01/26 13:00	upstream	13391c60	52e37319	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/01/20 09:32	upstream	45dfb8a5	d4f4eca5	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/01/20 07:53	upstream	45dfb8a5	63631df1	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-386	2021/01/20 06:46	upstream	45dfb8a5	63631df1	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/31 18:52	net-next	14e8e0f6	fc9fd31e	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/29 05:10	net-next	46251282	7df34f59	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/27 22:19	net-next	6b2e04bc	eefc07f2	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/27 21:52	net-next	6b2e04bc	eefc07f2	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/27 09:14	net-next	6626a026	a0ebf917	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/26 00:32	net-next	24f97b6a	52e37319	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/24 06:36	net-next	e7b76db3	52e37319	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/22 14:45	net-next	fdb6b338	d4f4eca5	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/01/17 13:38	upstream	0da0a8a0	813be542	.config	log	report			info
ci-upstream-kasan-gce-smack-root	2021/01/16 13:46	upstream	1d94330a	65a7a854	.config	log	report			info
ci-upstream-kasan-gce	2021/01/09 13:05	upstream	996e435f	a6c52263	.config	log	report			info
ci-upstream-kasan-gce	2020/12/14 14:10	upstream	2c85ebc5	b22a7ec3	.config	log	report			info
ci-upstream-kasan-gce	2020/12/09 06:28	upstream	7d8761ba	40cc414d	.config	log	report			info
ci-upstream-kasan-gce	2020/12/04 20:02	upstream	e87297fa	20366b87	.config	log	report			info
ci-upstream-kasan-gce	2020/11/30 08:46	upstream	b6505459	a0092f9d	.config	log	report			info
ci-upstream-kasan-gce-root	2020/11/29 01:45	upstream	45e885c4	a0092f9d	.config	log	report			info
ci-upstream-kasan-gce	2020/11/26 13:56	upstream	fa02fcd9	1d2b823e	.config	log	report			info
ci-upstream-kasan-gce-smack-root	2020/10/05 12:47	upstream	549738f1	5ef9c291	.config	log	report			info
ci-upstream-kasan-gce-386	2021/01/12 04:34	upstream	a0d54b4f	2c1f2513	.config	log	report			info
ci-upstream-kasan-gce-386	2021/01/09 15:59	upstream	996e435f	2c1f2513	.config	log	report			info
ci-qemu-upstream-386	2020/10/18 01:50	upstream	9d9af100	fea47c01	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/12/16 13:58	net	3db1a3fa	f213e07e	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/12/07 23:43	net	10c678bd	51a9082e	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/11/30 13:39	net	4d521943	78d50c1d	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/11/28 09:09	net	c84e1efa	486f93ef	.config	log	report			info
ci-upstream-net-kasan-gce	2021/01/11 22:18	net-next	73b7a604	2c1f2513	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/29 03:07	net-next	3db1a3fa	8259d56c	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/28 15:13	net-next	3db1a3fa	8259d56c	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/28 02:19	net-next	3db1a3fa	2242f77f	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/21 14:08	net-next	3db1a3fa	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/20 08:53	net-next	3db1a3fa	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/19 12:10	net-next	3db1a3fa	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/19 10:39	net-next	3db1a3fa	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/17 19:26	net-next	3db1a3fa	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/16 02:11	net-next	efd5a158	97183ed7	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/05 14:53	net-next	bcd684aa	50503117	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/03 21:56	net-next	cec85994	e6b0d314	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/02 03:43	net-next	87f75e58	c42a35e9	.config	log	report			info
ci-upstream-net-kasan-gce	2020/11/27 06:33	net-next	594e31bc	5018c946	.config	log	report			info
ci-upstream-net-kasan-gce	2020/11/26 11:47	net-next	594e31bc	2f1cec62	.config	log	report			info
ci-upstream-linux-next-kasan-gce-root	2020/12/26 01:49	linux-next	d7a03a44	821e0b09	.config	log	report			info