WARNING in bpf_warn_invalid_xdp

WARNING in bpf_warn_invalid_xdp_action
Status: upstream: reported C repro on 2020/01/22 16:09
Reported-by: syzbot+8ce4113dadc4789fac74@syzkaller.appspotmail.com
First crash: 609d, last: 9h23m

Cause bisection: introduced by (bisect log) :
commit 58956317c8de52009d1a38a721474c24aef74fe7
Author: David Ahern <dsahern@gmail.com>
Date: Fri Dec 7 20:24:57 2018 +0000

neighbor: Improve garbage collection

Crash: BUG: corrupted list in neigh_mark_dead (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 bpf_warn_invalid_xdp_action	C		error	165	6h21m	527d	0/1	upstream: reported C repro on 2020/04/10 21:45
linux-4.14	WARNING in bpf_warn_invalid_xdp_action	C		inconclusive	85	1d13h	527d	0/1	upstream: reported C repro on 2020/04/11 00:08

Sample crash report:

------------[ cut here ]------------
Illegal XDP return value 4294967274, expect packet loss!
WARNING: CPU: 0 PID: 8 at net/core/filter.c:8058 bpf_warn_invalid_xdp_action net/core/filter.c:8058 [inline]
WARNING: CPU: 0 PID: 8 at net/core/filter.c:8058 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8054
Modules linked in:
CPU: 0 PID: 8 Comm: kworker/0:2 Not tainted 5.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: mld mld_ifc_work
RIP: 0010:bpf_warn_invalid_xdp_action net/core/filter.c:8058 [inline]
RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8054
Code: 00 78 69 8a 41 83 fc 04 48 c7 c6 40 78 69 8a 48 0f 46 ee e8 13 b4 5f fa 44 89 e2 48 c7 c7 80 78 69 8a 48 89 ee e8 44 d7 bf 01 <0f> 0b 5b 5d 41 5c e9 f6 b3 5f fa 66 0f 1f 44 00 00 41 57 41 56 49
RSP: 0018:ffffc900000079b0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88801235d4c0 RSI: ffffffff815ce355 RDI: fffff52000000f28
RBP: ffffffff8a697800 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815c81be R11: 0000000000000000 R12: 00000000ffffffea
R13: ffffc90000007a48 R14: 00000000ffffffea R15: ffff888016d4ce76
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000440 CR3: 000000000bc8e000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 veth_xdp_rcv_skb+0x62a/0x1920 drivers/net/veth.c:802
 veth_xdp_rcv+0x3ac/0x810 drivers/net/veth.c:879
 veth_poll+0x134/0x840 drivers/net/veth.c:911
 __napi_poll+0xaf/0x440 net/core/dev.c:6985
 napi_poll net/core/dev.c:7052 [inline]
 net_rx_action+0x801/0xb40 net/core/dev.c:7139
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559
 do_softirq.part.0+0xd9/0x130 kernel/softirq.c:460
 </IRQ>
 do_softirq kernel/softirq.c:452 [inline]
 __local_bh_enable_ip+0x102/0x120 kernel/softirq.c:384
 local_bh_enable include/linux/bottom_half.h:32 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:746 [inline]
 ip6_finish_output2+0x755/0x1700 net/ipv6/ip6_output.c:118
 __ip6_finish_output net/ipv6/ip6_output.c:182 [inline]
 __ip6_finish_output+0x4c1/0xe10 net/ipv6/ip6_output.c:161
 ip6_finish_output+0x35/0x200 net/ipv6/ip6_output.c:192
 NF_HOOK_COND include/linux/netfilter.h:290 [inline]
 ip6_output+0x1e4/0x530 net/ipv6/ip6_output.c:215
 dst_output include/net/dst.h:448 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 NF_HOOK include/linux/netfilter.h:295 [inline]
 mld_sendpack+0x92a/0xdb0 net/ipv6/mcast.c:1820
 mld_send_cr net/ipv6/mcast.c:2121 [inline]
 mld_ifc_work+0x73b/0xdb0 net/ipv6/mcast.c:2652
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2276
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2422
 kthread+0x3b1/0x4a0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Crashes (6805):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-net-this-kasan-gce	2021/06/05 23:55	net	3822d0670c9d	500c2339	.config	log	report	syz	C		WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/03/29 17:56	bpf	861de02e5f3f	a8529b82	.config	log	report	syz	C		WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-kasan-gce	2021/06/05 23:46	net-next	1a42624aecba	500c2339	.config	log	report	syz	C		WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-selinux-root	2020/09/21 17:19	upstream	ba4f184e126b	9e1fa68e	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/09/20 19:43	upstream	325d0eab4f31	9564d2e9	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2020/09/19 12:26	upstream	eb5f95f1593f	53ce8104	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/09/11 03:30	upstream	7fe10096c150	409809d8	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/09/09 09:14	upstream	6f6a73c8b715	abf9ba4f	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2020/08/17 01:42	upstream	2cc3c4b3c2e9	424dd8e7	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/08/15 23:35	upstream	c9c9735c46f5	424dd8e7	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/08/15 13:25	upstream	7fca4dee610d	424dd8e7	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/05/03 08:02	upstream	f66ed1ebbfde	5457883a	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/05/03 07:03	upstream	f66ed1ebbfde	5457883a	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/05/03 05:59	upstream	f66ed1ebbfde	5457883a	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/05/03 05:20	upstream	f66ed1ebbfde	5457883a	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/05/03 05:09	upstream	f66ed1ebbfde	5457883a	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/05/03 04:40	upstream	f66ed1ebbfde	5457883a	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2020/05/01 16:49	upstream	c45e8bccecaf	a4d01b80	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2020/05/01 14:56	upstream	c45e8bccecaf	a4d01b80	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2020/05/01 14:17	upstream	c45e8bccecaf	a4d01b80	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/04/24 22:23	upstream	b4f633221f0a	03d97a1b	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/04/24 22:12	upstream	b4f633221f0a	03d97a1b	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2020/04/23 12:06	upstream	c578ddb39e56	2e44d63e	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/09/09 06:19	net	843d926b003e	abf9ba4f	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/08/15 16:13	net	4ca0d9ac3fd8	424dd8e7	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/04/10 22:37	net	40fc7ad2c886	a8c6a3f8	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2020/01/22 08:27	net	d0f418516022	8eda0b95	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/09/09 06:54	net-next	c1f1f16c4de4	abf9ba4f	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/08/15 17:47	net-next	7fca4dee610d	424dd8e7	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/04/10 23:21	net-next	63bef48fd6c9	a8c6a3f8	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/04/10 22:37	net-next	63bef48fd6c9	a8c6a3f8	.config	log	report	syz	C
ci-upstream-net-kasan-gce	2020/01/22 07:43	net-next	4f2c17e0f332	8eda0b95	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/09/27 14:12	linux-next	d1d2220c7f39	5dd8aee8	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/09/26 23:08	linux-next	d1d2220c7f39	2d5ea0cb	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/08/19 11:02	linux-next	8eb858df0a5f	e1c29030	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/05/03 13:24	linux-next	ac935d227366	5457883a	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/05/03 10:28	linux-next	ac935d227366	5457883a	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/05/03 09:48	linux-next	ac935d227366	5457883a	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/04/25 22:02	linux-next	ac935d227366	b8bb8e5f	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/04/09 00:21	linux-next	5798bd75ab13	db9bcd4b	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/04/03 08:45	linux-next	770fbb32d34e	a34e2c33	.config	log	report	syz	C
ci-upstream-net-this-kasan-gce	2021/09/01 19:39	net	57f780f1c433	7eb7e152	.config	log	report	syz			WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-selinux-root	2021/09/19 22:11	upstream	bc1abb9e55ce	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-smack-root	2021/09/18 20:20	upstream	4357f03d6611	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-smack-root	2021/09/17 19:53	upstream	ddf21bd8ab98	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-root	2021/09/17 15:35	upstream	bdb575f87217	5b989942	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-selinux-root	2021/09/17 02:46	upstream	bdb575f87217	5b989942	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-smack-root	2021/09/16 22:27	upstream	ff1ffd71d5f0	aae492f2	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-selinux-root	2021/09/16 19:06	upstream	ff1ffd71d5f0	aae492f2	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-smack-root	2021/09/16 16:59	upstream	ff1ffd71d5f0	aae492f2	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-smack-root	2021/09/16 14:48	upstream	ff1ffd71d5f0	aae492f2	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-selinux-root	2021/09/16 13:26	upstream	ff1ffd71d5f0	07e953c1	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-smack-root	2021/09/16 09:54	upstream	b7213ffa0e58	07e953c1	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-root	2021/09/16 02:04	upstream	b7213ffa0e58	07e953c1	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-selinux-root	2021/09/16 00:09	upstream	b7213ffa0e58	07e953c1	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-selinux-root	2021/09/14 15:04	upstream	d0ee23f9d78b	07e953c1	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-kasan-gce-root	2021/09/14 02:56	upstream	d0ee23f9d78b	58d09404	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-qemu-upstream	2021/08/04 16:32	upstream	d5ad8ec3cfb5	b97d64c9	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-qemu-upstream-386	2021/08/05 23:55	upstream	902e7f373fff	d2d6e680	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/09/19 19:28	bpf	bc23f7244817	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-this-kasan-gce	2021/09/19 18:11	net	87758511075e	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/09/19 16:17	bpf	bc23f7244817	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/09/19 14:22	bpf	bc23f7244817	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/09/19 13:05	bpf	bc23f7244817	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-this-kasan-gce	2021/09/19 08:53	net	02319bf15acf	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-this-kasan-gce	2021/09/19 03:33	net	02319bf15acf	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/09/19 02:19	bpf	bc23f7244817	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/09/18 14:06	bpf	bc23f7244817	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-this-kasan-gce	2021/09/18 07:50	net	02319bf15acf	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-this-kasan-gce	2021/09/17 17:11	net	02319bf15acf	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-this-kasan-gce	2021/09/17 14:34	net	fc0c0548c1a2	5b989942	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-this-kasan-gce	2021/09/17 06:30	net	fc0c0548c1a2	5b989942	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-this-kasan-gce	2021/09/16 04:36	net	a57d8c217aad	07e953c1	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/09/15 21:38	bpf	37cb28ec7d3a	07e953c1	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/09/15 11:44	bpf	356ed64991c6	07e953c1	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/09/13 07:33	bpf	57f780f1c433	5ae8508a	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/09/13 04:46	bpf	57f780f1c433	5ae8508a	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/09/13 00:27	bpf	57f780f1c433	5ae8508a	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-kasan-gce	2021/09/20 00:02	net-next	9eb7b5e7cb50	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-kasan-gce	2021/09/19 15:53	net-next	9eb7b5e7cb50	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-next-kasan-gce	2021/09/19 10:22	bpf-next	e57f52b42d1f	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-kasan-gce	2021/09/19 04:47	net-next	983e59a27b92	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-kasan-gce	2021/09/18 21:40	net-next	983e59a27b92	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-next-kasan-gce	2021/09/18 18:31	bpf-next	e57f52b42d1f	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-kasan-gce	2021/09/18 09:07	net-next	0efcc3f20145	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-kasan-gce	2021/09/18 06:21	net-next	5ef8a0291513	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-kasan-gce	2021/09/17 23:31	net-next	5ef8a0291513	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-kasan-gce	2021/09/17 12:53	net-next	561bed688bff	5b989942	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-net-kasan-gce	2021/09/17 00:23	net-next	52583c8d8b12	aae492f2	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-next-kasan-gce	2021/09/13 18:33	bpf-next	14bef1ab3037	3ce60af8	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-next-kasan-gce	2021/09/13 12:32	bpf-next	3384c7c7641b	3ce60af8	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-next-kasan-gce	2021/09/12 23:17	bpf-next	3384c7c7641b	5ae8508a	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-linux-next-kasan-gce-root	2021/09/18 20:21	linux-next	9004fd387338	70b76c1d	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-linux-next-kasan-gce-root	2021/09/17 15:34	linux-next	9004fd387338	5b989942	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-linux-next-kasan-gce-root	2021/09/17 08:27	linux-next	368847b165bb	5b989942	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-linux-next-kasan-gce-root	2021/09/15 09:17	linux-next	70ced02f322f	07e953c1	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-linux-next-kasan-gce-root	2021/09/15 08:45	linux-next	70ced02f322f	07e953c1	.config	log	report			info	WARNING in bpf_warn_invalid_xdp_action
ci-upstream-bpf-kasan-gce	2021/01/17 13:29	bpf	e23a8d002198	813be542	.config	log	report			info
ci-upstream-net-kasan-gce	2020/01/19 13:22	net-next	9aaa29494030	bc8bc756	.config	log	report