assertion failed: BHLEN(bp) >= offsetof(struct etherpkt, data)

assertion failed: BHLEN(bp) >= offsetof(struct etherpkt, data)
Status: upstream: reported C repro on 2018/07/21 00:31
Reported-by: syzbot+3d8007cb48c458a19837@syzkaller.appspotmail.com
First crash: 456d, last: 2h01m

Sample crash report:

kernel panic at kern/drivers/dev/ether.c:317, from core 0: assertion failed: BHLEN(bp) >= offsetof(struct etherpkt, data)
Stack Backtrace on Core 0:
#01 [<0xffffffffc200a2bc>] in backtrace at src/kdebug.c:220
#02 [<0xffffffffc2009afd>] in _panic at src/init.c:268
#03 [<0xffffffffc2077b63>] in etheriq at drivers/dev/ether.c:317
#04 [<0xffffffffc2077d2e>] in etheroq at drivers/dev/ether.c:424
#05 [<0xffffffffc2077faf>] in etherwrite at drivers/dev/ether.c:505
#06 [<0xffffffffc2040221>] in rwrite at src/ns/sysfile.c:1123
#07 [<0xffffffffc204043b>] in syswrite at src/ns/sysfile.c:1141
#08 [<0xffffffffc2055f61>] in sys_write at src/syscall.c:1785
#09 [<0xffffffffc2059439>] in syscall at src/syscall.c:2528
#10 [<0xffffffffc2059604>] in run_local_syscall at src/syscall.c:2563
#11 [<0xffffffffc2059b39>] in prep_syscalls at src/syscall.c:2583
#12 [<0xffffffffc20ab38a>] in sysenter_callwrapper at arch/x86/trap.c:854

Crashes (249):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro
ci-akaros-main	2018/07/21 00:30	akaros	9196d29a	8cc079c3	.config	log	report	syz	C
ci-akaros-main	2019/10/19 23:26	akaros	9a1c439d	8c88c9c1	.config	log	report
ci-akaros-main	2019/10/18 23:20	akaros	9a1c439d	8c88c9c1	.config	log	report
ci-akaros-main	2019/10/18 04:57	akaros	9a1c439d	8c88c9c1	.config	log	report
ci-akaros-main	2019/10/14 05:18	akaros	9a1c439d	2f661ec4	.config	log	report
ci-akaros-main	2019/10/12 20:55	akaros	9a1c439d	426631dd	.config	log	report
ci-akaros-main	2019/10/12 14:28	akaros	9a1c439d	426631dd	.config	log	report
ci-akaros-main	2019/10/10 18:41	akaros	9a1c439d	d52eff28	.config	log	report
ci-akaros-main	2019/10/10 03:12	akaros	9a1c439d	c4b9981b	.config	log	report
ci-akaros-main	2019/10/09 23:06	akaros	9a1c439d	c4b9981b	.config	log	report
ci-akaros-main	2019/10/08 06:36	akaros	9a1c439d	28ac6e64	.config	log	report
ci-akaros-main	2019/10/07 23:39	akaros	9a1c439d	28ac6e64	.config	log	report
ci-akaros-main	2019/10/05 14:37	akaros	9a1c439d	f3f7d9c8	.config	log	report
ci-akaros-main	2019/10/04 10:45	akaros	9a1c439d	fc17ba49	.config	log	report
ci-akaros-main	2019/10/01 10:42	akaros	9a1c439d	eb6b9855	.config	log	report
ci-akaros-main	2019/10/01 01:42	akaros	9a1c439d	eb6b9855	.config	log	report
ci-akaros-main	2019/09/30 16:49	akaros	9a1c439d	eb6b9855	.config	log	report
ci-akaros-main	2019/09/30 01:15	akaros	9a1c439d	eb6b9855	.config	log	report
ci-akaros-main	2019/09/29 09:18	akaros	9a1c439d	eb6b9855	.config	log	report
ci-akaros-main	2019/09/28 09:48	akaros	9a1c439d	d8074e0b	.config	log	report
ci-akaros-main	2019/09/27 06:40	akaros	9a1c439d	2f1548bc	.config	log	report
ci-akaros-main	2019/09/27 03:47	akaros	9a1c439d	2f1548bc	.config	log	report
ci-akaros-main	2019/09/25 10:46	akaros	9a1c439d	e38a6630	.config	log	report
ci-akaros-main	2019/09/24 06:11	akaros	9a1c439d	c68252d2	.config	log	report
ci-akaros-main	2019/09/22 07:13	akaros	9a1c439d	d96e88f3	.config	log	report
ci-akaros-main	2019/09/22 02:21	akaros	9a1c439d	d96e88f3	.config	log	report
ci-akaros-main	2019/09/21 20:35	akaros	9a1c439d	d96e88f3	.config	log	report
ci-akaros-main	2019/09/19 21:42	akaros	9a1c439d	a32a3184	.config	log	report
ci-akaros-main	2019/09/17 04:53	akaros	9a1c439d	51ca0454	.config	log	report
ci-akaros-main	2019/09/15 09:03	akaros	9a1c439d	32d59357	.config	log	report
ci-akaros-main	2019/09/13 08:45	akaros	9a1c439d	f4e53c10	.config	log	report
ci-akaros-main	2019/09/09 09:31	akaros	9a1c439d	a60cb4cd	.config	log	report
ci-akaros-main	2019/09/06 16:07	akaros	9a1c439d	4280382f	.config	log	report
ci-akaros-main	2019/09/05 20:52	akaros	9a1c439d	c16be727	.config	log	report
ci-akaros-main	2019/08/29 01:21	akaros	9a1c439d	40203c15	.config	log	report
ci-akaros-main	2019/08/27 15:43	akaros	9a1c439d	d21c5d9d	.config	log	report
ci-akaros-main	2019/08/25 22:13	akaros	a06b628e	d21c5d9d	.config	log	report
ci-akaros-main	2019/08/21 19:27	akaros	a06b628e	984250d5	.config	log	report
ci-akaros-main	2019/08/20 07:29	akaros	a06b628e	cfc9868f	.config	log	report
ci-akaros-main	2019/08/18 22:18	akaros	baa96264	b8ceabfc	.config	log	report
ci-akaros-main	2019/08/16 01:47	akaros	baa96264	faeffb00	.config	log	report
ci-akaros-main	2019/08/14 08:31	akaros	9855c4bd	ef801a3e	.config	log	report
ci-akaros-main	2019/08/08 00:15	akaros	9855c4bd	e6ebef88	.config	log	report
ci-akaros-main	2019/08/02 12:53	akaros	9855c4bd	835dffe7	.config	log	report
ci-akaros-main	2019/07/31 21:39	akaros	9855c4bd	995b2a26	.config	log	report
ci-akaros-main	2019/07/31 11:14	akaros	9855c4bd	995b2a26	.config	log	report
ci-akaros-main	2019/07/31 05:15	akaros	9855c4bd	7c7ded69	.config	log	report
ci-akaros-main	2019/07/28 11:47	akaros	9855c4bd	c85e1c5b	.config	log	report
ci-akaros-main	2019/07/24 16:09	akaros	9855c4bd	32329ceb	.config	log	report