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
Fix commit: 0ee4d55534f8 mac80211: remove warning in ieee80211_get_sband()
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-arm32]
First crash: 296d, last: 42d

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

Fix bisection: fixed by (bisect log) :
commit 282ab3ff16120ec670fe3330e85f8ebf13092f21
Author: David Sterba <dsterba@suse.com>
Date: Mon Oct 14 12:38:33 2019 +0000

btrfs: reduce compressed_bio members' types

similar bugs (2):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	WARNING in sta_info_alloc	C		done	15	39d	296d	1/1	fixed on 2021/07/19 22:15
linux-4.14	WARNING in sta_info_alloc	C			8	4d22h	296d	0/1	upstream: reported C repro on 2020/10/05 12:47

Sample crash report:

netlink: 'syz-executor356': attribute type 16 has an invalid length.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8380 at net/mac80211/ieee80211_i.h:1458 ieee80211_get_sband net/mac80211/ieee80211_i.h:1458 [inline]
WARNING: CPU: 0 PID: 8380 at net/mac80211/ieee80211_i.h:1458 sta_info_alloc+0x192a/0x1fa0 net/mac80211/sta_info.c:487
Modules linked in:
CPU: 0 PID: 8380 Comm: syz-executor356 Not tainted 5.12.0-rc7-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:1458 [inline]
RIP: 0010:sta_info_alloc+0x192a/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 8a 5b 1c f9 8b 5c 24 08 83 e3 01 83 c3 01 e9 a5 fb ff ff e8 76 5b 1c f9 <0f> 0b e8 3f 63 ac 00 31 ff 89 c3 89 c6 e8 b4 61 1c f9 85 db 74 1d
RSP: 0018:ffffc900015573e0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888022a940c0 RSI: ffffffff8856ca5a RDI: 0000000000000003
RBP: ffff888035cf0d00 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8856c997 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000008 R14: dffffc0000000000 R15: ffff88802fb1c000
FS:  0000000001735300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdff5d1d000 CR3: 0000000022f43000 CR4: 00000000001506f0
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:6743
 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:2502
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927
 sock_sendmsg_nosec net/socket.c:654 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:674
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x440959
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:00007ffee88c2248 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004b73c0 RCX: 0000000000440959
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000004
RBP: 0000000000000003 R08: 0000000c00000001 R09: 0000000c00000001
R10: 0000000c00000001 R11: 0000000000000246 R12: 0000000000000031
R13: 00007ffee88c2290 R14: 00007ffee88c227a R15: 00000000004b7430

Crashes (145):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce-selinux-root	2021/04/15 13:43	upstream	7f75285ca572	fcdb12ba	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/04/02 02:02	upstream	ffd9fb546d49	6a81331a	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/03/24 10:01	upstream	7acac4b3196c	e613994b	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/03/07 02:55	upstream	a38fd8748464	e4b4d570	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-selinux-root	2021/02/07 05:03	upstream	964d069f93c4	0655e081	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-selinux-root	2021/02/06 01:37	upstream	dd86e7fa07a3	23a562df	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/02/04 07:43	upstream	3afe9076a7c1	624dad51	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-selinux-root	2021/02/03 20:09	upstream	3aaf0a27ffc2	624dad51	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-selinux-root	2021/02/03 14:59	upstream	3aaf0a27ffc2	624dad51	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/02/01 23:56	upstream	1048ba83fb1c	e6b95f32	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/02/01 20:35	upstream	1048ba83fb1c	e6b95f32	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/01/31 21:05	upstream	6642d600b541	fc9fd31e	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/01/31 20:16	upstream	6642d600b541	fc9fd31e	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/01/25 21:22	upstream	6ee1d745b7c9	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/01/24 11:23	upstream	e1ae4b0be158	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/01/23 19:59	upstream	fe75a21824e7	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/01/23 19:08	upstream	fe75a21824e7	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-net-this-kasan-gce	2021/01/25 09:35	net	344db93ae3ee	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/25 07:20	net-next	a61e4b60761f	52e37319	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-linux-next-kasan-gce-root	2021/04/17 09:02	linux-next	1216f02e46a4	7e2b734b	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-linux-next-kasan-gce-root	2021/03/30 03:02	linux-next	931294922e65	6a81331a	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-linux-next-kasan-gce-root	2021/03/25 04:39	linux-next	20f1b5f9c07c	607e3baf	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-linux-next-kasan-gce-root	2021/03/23 08:49	linux-next	e3128d2f068e	8092f30d	.config	log	report	syz	C		WARNING in sta_info_alloc
ci-upstream-kasan-gce	2020/12/03 17:07	upstream	34816d20f173	e6b0d314	.config	log	report	syz	C
ci-upstream-kasan-gce	2020/10/05 13:53	upstream	549738f15da0	5ef9c291	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/10/05 13:41	upstream	549738f15da0	5ef9c291	.config	log	report	syz	C
ci-upstream-kasan-gce-386	2020/11/27 00:09	upstream	4df910620beb	1d2b823e	.config	log	report	syz	C
ci-upstream-kasan-gce-386	2020/11/20 19:54	upstream	4d02da974ea8	740ff461	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/10/13 12:12	net	64a632da538a	bd69ee0d	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/10/10 08:10	net	923527dcb4d1	93817d89	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/10/10 05:50	net	923527dcb4d1	93817d89	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/10/09 18:35	net	3fdd47c3b40a	d81b165e	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/10/09 16:29	net	3fdd47c3b40a	d81b165e	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/10/10 22:24	net-next	c77fb07fae36	4a77ae0b	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/10/07 03:32	net-next	8b0308fe319b	1880b4a9	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/10/06 01:50	net-next	c2568c8c9e63	1880b4a9	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/10/05 19:39	net-next	c2568c8c9e63	1880b4a9	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/10/05 18:51	net-next	c2568c8c9e63	1880b4a9	.config	log	report	syz	C
ci-upstream-kasan-gce	2021/06/16 18:48	upstream	6b00bc639f1f	c06f97ad	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/06/16 11:48	upstream	94f0b2d4a1d0	c06f97ad	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/06/16 00:53	upstream	94f0b2d4a1d0	990d3cbe	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/06/15 10:31	upstream	009c9aa5be65	58636922	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/06/14 16:58	upstream	009c9aa5be65	1ba81399	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/06/11 09:33	upstream	06af8679449d	1ba81399	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/05/13 19:07	upstream	c06a2ba62fc4	80f9b418	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/05/10 15:27	upstream	6efb943b8616	ca873091	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/04/22 00:50	upstream	16fc44d6387e	2bc8999a	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/04/11 03:45	upstream	52e44129fba5	bfeda1b1	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/04/10 12:01	upstream	d4961772226d	bfeda1b1	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/04/08 01:57	upstream	3a22981230f9	6a81331a	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-root	2021/04/07 14:47	upstream	2d743660786e	6a81331a	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/01/31 05:58	upstream	8c947645151c	fc9fd31e	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/01/30 06:11	upstream	0e9bcda5d286	fc9fd31e	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/01/26 13:00	upstream	13391c60da33	52e37319	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/01/20 09:32	upstream	45dfb8a5659a	d4f4eca5	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-smack-root	2021/01/20 07:53	upstream	45dfb8a5659a	63631df1	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-386	2021/06/09 13:48	upstream	368094df48e6	84fe5d96	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-386	2021/04/24 09:15	upstream	8db5efb83fa9	17f0b706	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce-386	2021/01/20 06:46	upstream	45dfb8a5659a	63631df1	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-this-kasan-gce	2021/05/18 04:51	net	31db0dbd7244	a343ba6b	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-this-kasan-gce	2021/03/11 06:12	net	47142ed6c34d	c2ca1f2a	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/06/12 21:53	net-next	02b0bb51a8da	1ba81399	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/04/30 18:43	net-next	95aafe911db6	77e2b668	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/04/07 04:28	net-next	be107538c529	6a81331a	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/04/06 05:36	net-next	514e1150da9c	6a81331a	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/04/04 13:46	net-next	428e68e1a85a	6a81331a	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/31 18:52	net-next	14e8e0f60088	fc9fd31e	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/29 05:10	net-next	462512824f90	7df34f59	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/27 22:19	net-next	6b2e04bc240f	eefc07f2	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/27 21:52	net-next	6b2e04bc240f	eefc07f2	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/27 09:14	net-next	6626a0266566	a0ebf917	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/26 00:32	net-next	24f97b6af9a0	52e37319	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/24 06:36	net-next	e7b76db36240	52e37319	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-net-kasan-gce	2021/01/22 14:45	net-next	fdb6b338d2e5	d4f4eca5	.config	log	report			info	WARNING in sta_info_alloc
ci-upstream-kasan-gce	2021/01/17 13:38	upstream	0da0a8a0a0e1	813be542	.config	log	report			info
ci-upstream-kasan-gce-smack-root	2021/01/16 13:46	upstream	1d94330a437a	65a7a854	.config	log	report			info
ci-upstream-kasan-gce	2021/01/09 13:05	upstream	996e435fd401	a6c52263	.config	log	report			info
ci-upstream-kasan-gce-smack-root	2020/10/05 12:47	upstream	549738f15da0	5ef9c291	.config	log	report			info
ci-upstream-kasan-gce-386	2021/01/12 04:34	upstream	a0d54b4f5b21	2c1f2513	.config	log	report			info
ci-upstream-kasan-gce-386	2021/01/09 15:59	upstream	996e435fd401	2c1f2513	.config	log	report			info
ci-qemu-upstream-386	2020/10/18 01:50	upstream	9d9af1007bc0	fea47c01	.config	log	report			info
ci-upstream-net-this-kasan-gce	2020/12/16 13:58	net	3db1a3fa9880	f213e07e	.config	log	report			info
ci-upstream-net-kasan-gce	2021/01/11 22:18	net-next	73b7a6047971	2c1f2513	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/29 03:07	net-next	3db1a3fa9880	8259d56c	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/28 15:13	net-next	3db1a3fa9880	8259d56c	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/28 02:19	net-next	3db1a3fa9880	2242f77f	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/21 14:08	net-next	3db1a3fa9880	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/20 08:53	net-next	3db1a3fa9880	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/19 12:10	net-next	3db1a3fa9880	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/19 10:39	net-next	3db1a3fa9880	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/17 19:26	net-next	3db1a3fa9880	04201c06	.config	log	report			info
ci-upstream-linux-next-kasan-gce-root	2020/12/26 01:49	linux-next	d7a03a44a5e9	821e0b09	.config	log	report			info