kernel BUG at net/core/skbuff.c:LINE!

kernel BUG at net/core/skbuff.c:LINE!
Status: upstream: reported C repro on 2019/04/12 15:43
Reported-by: syzbot+812d66c9f9b0bbb28d30@syzkaller.appspotmail.com
First crash: 695d, last: 9h20m

similar bugs (10):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
android-44	kernel BUG at net/core/skbuff.c:LINE!	C			79	471d	696d	0/2	public: reported C repro on 2019/04/11 08:44
linux-4.19	kernel BUG at net/core/skbuff.c:LINE!	C		unreliable	484	49d	679d	0/1	upstream: reported C repro on 2019/04/27 20:12
android-54	kernel BUG in pfkey_send_acquire	syz			32	21d	49d	0/1	upstream: reported syz repro on 2021/01/17 15:19
upstream	kernel BUG at net/core/skbuff.c:LINE! (2)	C			562	1135d	1224d	4/21	fixed on 2018/01/29 03:39
android-54	kernel BUG at net/core/skbuff.c:LINE!	C			99	21d	420d	0/1	upstream: reported C repro on 2020/01/12 09:43
android-414	kernel BUG at net/core/skbuff.c:LINE!	C			2743	459d	696d	0/1	public: reported C repro on 2019/04/11 00:00
upstream	kernel BUG at net/core/skbuff.c:LINE! (3)	C	done		4399	13d	1130d	20/21	upstream: reported C repro on 2018/02/01 19:21
upstream	kernel BUG at net/core/skbuff.c:LINE!				5	1230d	1300d	3/21	fixed on 2017/10/27 10:10
linux-4.19	kernel BUG in pfkey_send_acquire	C			56	19d	49d	0/1	upstream: reported C repro on 2021/01/17 15:22
android-49	kernel BUG at net/core/skbuff.c:LINE!	C			391	459d	695d	0/3	public: reported C repro on 2019/04/12 00:00

Sample crash report:

skbuff: skb_over_panic: text:ffffffff863ac7ef len:40 put:40 head:ffff888093c5ae80 data:ffff888093c5dc70 tail:0x2e18 end:0xec0 dev:ip6gretap0
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:104!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 3626 Comm: kworker/0:2 Not tainted 4.14.222-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: ipv6_addrconf addrconf_dad_work
task: ffff8880a8ed63c0 task.stack: ffff8880a8ed8000
RIP: 0010:skb_panic+0x172/0x174 net/core/skbuff.c:104
RSP: 0000:ffff8880a8edf8d0 EFLAGS: 00010282
RAX: 000000000000008c RBX: ffff8880b4929700 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff878bbb40 RDI: ffffed10151dbf10
RBP: ffffffff885554a0 R08: 000000000000008c R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff863ac7ef
R13: 0000000000000028 R14: ffff88809565c200 R15: 0000000000000ec0
FS:  0000000000000000(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000097e9f000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_over_panic net/core/skbuff.c:109 [inline]
 skb_put.cold+0x24/0x24 net/core/skbuff.c:1708
 ip6_mc_hdr.constprop.0+0x11f/0x580 net/ipv6/mcast.c:1552
 mld_newpack+0x3aa/0x720 net/ipv6/mcast.c:1603
 add_grhead+0x265/0x330 net/ipv6/mcast.c:1691
 add_grec+0xc40/0xed0 net/ipv6/mcast.c:1822
 mld_send_initial_cr.part.0+0xb0/0x140 net/ipv6/mcast.c:2072
 mld_send_initial_cr net/ipv6/mcast.c:1170 [inline]
 ipv6_mc_dad_complete+0x183/0x5a0 net/ipv6/mcast.c:2084
 addrconf_dad_completed+0x80f/0xa40 net/ipv6/addrconf.c:4061
 addrconf_dad_work+0x5f2/0xef0 net/ipv6/addrconf.c:3992
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 8b 4c 24 10 8b 8b 80 00 00 00 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 40 4d 55 88 ff 74 24 10 ff 74 24 20 e8 b3 72 e4 ff <0f> 0b e8 88 15 3a fa 4c 8b 64 24 18 e8 8e 79 63 fa 48 c7 c1 60 
RIP: skb_panic+0x172/0x174 net/core/skbuff.c:104 RSP: ffff8880a8edf8d0
---[ end trace 07d948e7fcd3b9da ]---

Crashes (2661):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci2-linux-4-14	2021/03/02 16:58	linux-4.14.y	3242aa3a	92ead296	.config	log	report	syz	C		kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/01/21 11:00	linux-4.14.y	2762b48e	d4f4eca5	.config	log	report	syz	C		kernel BUG in pfkey_send_acquire
ci2-linux-4-14	2021/01/20 08:10	linux-4.14.y	2762b48e	63631df1	.config	log	report	syz	C		kernel BUG in pfkey_send_acquire
ci2-linux-4-14	2021/01/17 05:02	linux-4.14.y	f79dc860	65a7a854	.config	log	report	syz	C
ci2-linux-4-14	2020/10/14 10:37	linux-4.14.y	cbfa1702	fc7735a2	.config	log	report	syz	C
ci2-linux-4-14	2020/10/03 00:40	linux-4.14.y	cbfa1702	062c9832	.config	log	report	syz	C
ci2-linux-4-14	2020/08/17 11:40	linux-4.14.y	14b58326	5ce13532	.config	log	report	syz	C
ci2-linux-4-14	2020/03/19 02:17	linux-4.14.y	12cd844a	2c31c529	.config	log	report	syz	C
ci2-linux-4-14	2019/12/24 12:11	linux-4.14.y	e1f7d50a	be5c2c81	.config	log	report	syz	C
ci2-linux-4-14	2019/04/20 21:06	linux-4.14.y	68d7a45e	b0e8efcb	.config	log	report	syz	C
ci2-linux-4-14	2021/01/27 22:26	linux-4.14.y	2d2791fc	a57db36f	.config	log	report	syz			kernel BUG in pfkey_send_acquire
ci2-linux-4-14	2021/01/02 14:01	linux-4.14.y	17529385	79264ae3	.config	log	report	syz
ci2-linux-4-14	2020/08/18 04:38	linux-4.14.y	14b58326	5ce13532	.config	log	report	syz
ci2-linux-4-14	2021/01/17 14:31	linux-4.14.y	2762b48e	813be542	.config	log	report			info	kernel BUG at net/core/skbuff.c:LINE!
ci2-linux-4-14	2021/03/07 10:15	linux-4.14.y	397a88b2	c599ed12	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/07 03:27	linux-4.14.y	397a88b2	e4b4d570	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/06 19:26	linux-4.14.y	397a88b2	e4b4d570	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/04 17:42	linux-4.14.y	397a88b2	f89ed068	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/04 07:04	linux-4.14.y	397a88b2	d7e4e604	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/04 05:30	linux-4.14.y	397a88b2	d7e4e604	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/03 14:36	linux-4.14.y	3242aa3a	06ed56cd	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/02 08:04	linux-4.14.y	3242aa3a	92ead296	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/02 05:10	linux-4.14.y	3242aa3a	183afb6c	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/02 00:00	linux-4.14.y	3242aa3a	183afb6c	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/01 22:34	linux-4.14.y	3242aa3a	183afb6c	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/01 20:03	linux-4.14.y	3242aa3a	183afb6c	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/01 10:09	linux-4.14.y	3242aa3a	4c37c133	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/01 04:02	linux-4.14.y	3242aa3a	4c37c133	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/03/01 02:48	linux-4.14.y	3242aa3a	4c37c133	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/28 17:56	linux-4.14.y	3242aa3a	4c37c133	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/27 18:58	linux-4.14.y	3242aa3a	4c37c133	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/27 15:37	linux-4.14.y	3242aa3a	4c37c133	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/27 14:22	linux-4.14.y	3242aa3a	4c37c133	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/26 20:08	linux-4.14.y	3242aa3a	4c37c133	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/26 10:50	linux-4.14.y	3242aa3a	4c37c133	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/25 22:44	linux-4.14.y	3242aa3a	76f7fc95	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/25 18:01	linux-4.14.y	3242aa3a	76f7fc95	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/25 15:31	linux-4.14.y	3242aa3a	76f7fc95	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/25 14:04	linux-4.14.y	3242aa3a	76f7fc95	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/25 04:17	linux-4.14.y	3242aa3a	fcc6d71b	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/25 02:23	linux-4.14.y	3242aa3a	fcc6d71b	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/24 18:34	linux-4.14.y	3242aa3a	fcc6d71b	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/24 16:42	linux-4.14.y	3242aa3a	fcc6d71b	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/24 08:56	linux-4.14.y	3242aa3a	fcc6d71b	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/24 05:01	linux-4.14.y	3242aa3a	fcc6d71b	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/23 21:41	linux-4.14.y	3242aa3a	fcc6d71b	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/23 14:42	linux-4.14.y	3242aa3a	fcc6d71b	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/23 11:56	linux-4.14.y	29c52025	fcc6d71b	.config	log	report			info	kernel BUG in pfkey_send_acquire
ci2-linux-4-14	2021/02/23 07:39	linux-4.14.y	29c52025	fcc6d71b	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/23 03:25	linux-4.14.y	29c52025	fcc6d71b	.config	log	report			info	kernel BUG in pfkey_send_acquire
ci2-linux-4-14	2021/02/23 03:11	linux-4.14.y	29c52025	fcc6d71b	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/22 19:54	linux-4.14.y	29c52025	c26fb06b	.config	log	report			info	kernel BUG in pfkey_send_acquire
ci2-linux-4-14	2021/02/22 14:09	linux-4.14.y	29c52025	c26fb06b	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/22 10:14	linux-4.14.y	29c52025	a659b3f1	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/02/21 17:27	linux-4.14.y	29c52025	a659b3f1	.config	log	report			info	kernel BUG in pfkey_send_acquire
ci2-linux-4-14	2021/02/21 08:14	linux-4.14.y	29c52025	3e5ed8b4	.config	log	report			info	kernel BUG in pfkey_send_acquire
ci2-linux-4-14	2021/02/20 23:12	linux-4.14.y	29c52025	3e5ed8b4	.config	log	report			info	kernel BUG in ip6_mc_hdr
ci2-linux-4-14	2021/01/20 00:20	linux-4.14.y	2762b48e	63631df1	.config	log	report			info	kernel BUG in igmpv3_newpack
ci2-linux-4-14	2021/01/17 14:15	linux-4.14.y	2762b48e	813be542	.config	log	report			info
ci2-linux-4-14	2019/04/12 14:42	linux-4.14.y	1ec8f1f0	4f421599	.config	log	report