kernel BUG at net/phonet/socket.c:LINE!

kernel BUG at net/phonet/socket.c:LINE!
Status: upstream: reported on 2020/04/10 07:16
Reported-by: syzbot+2dc91e7fc3dea88b1e8a@syzkaller.appspotmail.com
First crash: 371d, last: 2d08h

similar bugs (1):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	kernel BUG in pn_socket_autobind				1	5d13h	5d13h	0/1	upstream: reported on 2021/04/09 18:14

Sample crash report:

------------[ cut here ]------------
kernel BUG at net/phonet/socket.c:213!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 323 Comm: syz-executor.2 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_autobind+0x13c/0x160 net/phonet/socket.c:202
Code: 44 05 00 00 00 00 00 48 8b 44 24 58 65 48 2b 04 25 28 00 00 00 75 26 48 83 c4 60 44 89 e0 5b 5d 41 5c 41 5d c3 e8 94 33 55 f9 <0f> 0b e8 bd 24 99 f9 eb 9f e8 d6 24 99 f9 e9 6d ff ff ff e8 3c 1c
RSP: 0018:ffffc9001889fc48 EFLAGS: 00010216
RAX: 0000000000000097 RBX: 0000000000000000 RCX: ffffc9000cf91000
RDX: 0000000000040000 RSI: ffffffff881e40cc RDI: 0000000000000003
RBP: 1ffff92003113f89 R08: 00000000ffffffea R09: 0000000000000000
R10: ffffffff881e408c R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88801af4d340
FS:  00007eff7c36f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00dcff000 CR3: 00000000738fb000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 pn_socket_connect+0xfc/0x970 net/phonet/socket.c:227
 __sys_connect_file+0x155/0x1a0 net/socket.c:1837
 __sys_connect+0x161/0x190 net/socket.c:1854
 __do_sys_connect net/socket.c:1864 [inline]
 __se_sys_connect net/socket.c:1861 [inline]
 __x64_sys_connect+0x6f/0xb0 net/socket.c:1861
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465f69
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007eff7c36f188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465f69
RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00000000004bfa67 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007fff3b58383f R14: 00007eff7c36f300 R15: 0000000000022000
Modules linked in:
---[ end trace 9ff405d1c151ae45 ]---
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_autobind+0x13c/0x160 net/phonet/socket.c:202
Code: 44 05 00 00 00 00 00 48 8b 44 24 58 65 48 2b 04 25 28 00 00 00 75 26 48 83 c4 60 44 89 e0 5b 5d 41 5c 41 5d c3 e8 94 33 55 f9 <0f> 0b e8 bd 24 99 f9 eb 9f e8 d6 24 99 f9 e9 6d ff ff ff e8 3c 1c
RSP: 0018:ffffc9001889fc48 EFLAGS: 00010216
RAX: 0000000000000097 RBX: 0000000000000000 RCX: ffffc9000cf91000
RDX: 0000000000040000 RSI: ffffffff881e40cc RDI: 0000000000000003
RBP: 1ffff92003113f89 R08: 00000000ffffffea R09: 0000000000000000
R10: ffffffff881e408c R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88801af4d340
FS:  00007eff7c36f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30f27000 CR3: 00000000738fb000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (58):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Title
ci-upstream-net-this-kasan-gce	2021/03/07 18:55	net	9270bbe2	75506d9c	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-this-kasan-gce	2021/02/01 10:04	net	eb4e8fac	fc9fd31e	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-this-kasan-gce	2021/01/10 17:54	net	f97844f9	2c1f2513	.config	log	report	info
ci-upstream-net-this-kasan-gce	2020/11/30 02:08	net	4d521943	a0092f9d	.config	log	report	info
ci-upstream-net-this-kasan-gce	2020/11/17 08:13	net	e2142ef2	1bf9a662	.config	log	report	info
ci-upstream-net-this-kasan-gce	2020/11/16 04:37	net	849920c7	1bf9a662	.config	log	report	info
ci-upstream-net-this-kasan-gce	2020/11/14 17:03	net	ceb736e1	1bf9a662	.config	log	report	info
ci-upstream-net-this-kasan-gce	2020/11/09 13:42	net	4e0396c5	64069d48	.config	log	report	info
ci-upstream-net-this-kasan-gce	2020/09/24 10:48	net	77972b55	54289b08	.config	log	report	info
ci-upstream-net-this-kasan-gce	2020/07/23 17:00	net	26cb7085	340ea530	.config	log	report
ci-upstream-net-this-kasan-gce	2020/06/17 18:57	net	4d3da2d8	b9f3810b	.config	log	report
ci-upstream-net-this-kasan-gce	2020/06/08 07:02	net	4d3da2d8	7751efd0	.config	log	report
ci-upstream-net-this-kasan-gce	2020/04/09 03:56	net	b93cfb9c	db9bcd4b	.config	log	report
ci-upstream-net-kasan-gce	2021/04/12 23:15	net-next	5b489fea	bfeda1b1	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/04/02 14:16	net-next	bd78980b	6a81331a	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/03/31 01:04	net-next	37f368d8	6a81331a	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/03/02 20:30	net-next	d310ec03	92ead296	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/03/02 16:22	net-next	d310ec03	92ead296	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/02/27 10:51	net-next	d310ec03	4c37c133	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/02/24 11:37	net-next	d310ec03	fcc6d71b	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/02/22 11:18	net-next	d310ec03	a659b3f1	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/02/09 08:24	net-next	8e571586	2bd9619f	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/02/01 04:10	net-next	14e8e0f6	fc9fd31e	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/01/31 10:28	net-next	14e8e0f6	fc9fd31e	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/01/24 09:42	net-next	e7b76db3	52e37319	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/01/20 14:49	net-next	7b8fc010	d4f4eca5	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/01/19 15:54	net-next	99d51897	63631df1	.config	log	report	info	kernel BUG in pn_socket_autobind
ci-upstream-net-kasan-gce	2021/01/17 02:45	net-next	9ab7e76a	65a7a854	.config	log	report	info
ci-upstream-net-kasan-gce	2021/01/16 08:19	net-next	e7fa5c80	65a7a854	.config	log	report	info
ci-upstream-net-kasan-gce	2020/12/25 20:59	net-next	3db1a3fa	b982b3ea	.config	log	report	info
ci-upstream-net-kasan-gce	2020/12/12 12:24	net-next	91163f82	bca53db9	.config	log	report	info
ci-upstream-net-kasan-gce	2020/11/16 16:53	net-next	0064c5c1	1bf9a662	.config	log	report	info
ci-upstream-net-kasan-gce	2020/11/10 18:40	net-next	8be33ecf	cca87986	.config	log	report	info
ci-upstream-net-kasan-gce	2020/11/08 17:36	net-next	bff6f1db	64069d48	.config	log	report	info
ci-upstream-net-kasan-gce	2020/09/12 10:37	net-next	12913f74	79fb24e2	.config	log	report
ci-upstream-net-kasan-gce	2020/09/07 23:18	net-next	bb1416ad	abf9ba4f	.config	log	report
ci-upstream-net-kasan-gce	2020/09/07 08:41	net-next	02a20d4f	abf9ba4f	.config	log	report
ci-upstream-net-kasan-gce	2020/09/06 06:12	net-next	447a851b	abf9ba4f	.config	log	report
ci-upstream-net-kasan-gce	2020/09/04 05:51	net-next	22b330b6	abf9ba4f	.config	log	report
ci-upstream-net-kasan-gce	2020/08/27 18:48	net-next	f0966581	816e0689	.config	log	report
ci-upstream-net-kasan-gce	2020/08/26 04:10	net-next	fdf1923b	344da168	.config	log	report
ci-upstream-net-kasan-gce	2020/08/24 21:23	net-next	7611cbb9	67b599d1	.config	log	report
ci-upstream-net-kasan-gce	2020/08/12 14:23	net-next	bfdd5aaa	bb3e5fe6	.config	log	report
ci-upstream-net-kasan-gce	2020/08/12 05:46	net-next	bfdd5aaa	bb3e5fe6	.config	log	report
ci-upstream-net-kasan-gce	2020/08/11 16:19	net-next	bfdd5aaa	bacaf5fa	.config	log	report
ci-upstream-net-kasan-gce	2020/08/06 10:20	net-next	8ed54f16	0487ea6f	.config	log	report
ci-upstream-net-kasan-gce	2020/07/31 13:41	net-next	41d707b7	8df85ed9	.config	log	report
ci-upstream-net-kasan-gce	2020/07/30 13:17	net-next	41d707b7	233283a1	.config	log	report
ci-upstream-net-kasan-gce	2020/07/17 01:00	net-next	632ca50f	54b3c45e	.config	log	report
ci-upstream-net-kasan-gce	2020/07/15 08:27	net-next	07dd1b7e	609fb517	.config	log	report
ci-upstream-net-kasan-gce	2020/06/26 12:58	net-next	cb8e59cc	aea82c00	.config	log	report
ci-upstream-net-kasan-gce	2020/06/12 10:54	net-next	cb8e59cc	58802067	.config	log	report
ci-upstream-net-kasan-gce	2020/06/05 16:06	net-next	cb8e59cc	2420d1bc	.config	log	report
ci-upstream-net-kasan-gce	2020/06/05 01:05	net-next	cb8e59cc	6720fdef	.config	log	report
ci-upstream-net-kasan-gce	2020/06/02 05:12	net-next	9a25c1df	a0331e89	.config	log	report
ci-upstream-net-kasan-gce	2020/05/24 10:51	net-next	54b9aca0	96c92ad3	.config	log	report
ci-upstream-net-kasan-gce	2020/05/14 08:45	net-next	6cb75767	a885920d	.config	log	report