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: 394d, last: 7h48m

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

All crashes (210):
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	2019/08/18 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
ci-akaros-main	2019/07/22 23:37	akaros	9855c4bd	55e0c077	.config	log	report
ci-akaros-main	2019/07/22 04:22	akaros	9855c4bd	1656845f	.config	log	report
ci-akaros-main	2019/07/14 12:17	akaros	9855c4bd	e6fb0f13	.config	log	report
ci-akaros-main	2019/07/13 12:16	akaros	9855c4bd	e6fb0f13	.config	log	report
ci-akaros-main	2019/07/11 20:50	akaros	9855c4bd	186a30b9	.config	log	report
ci-akaros-main	2019/07/11 05:35	akaros	6627be2d	ff7bf04c	.config	log	report
ci-akaros-main	2019/07/05 01:02	akaros	6627be2d	deef5fbc	.config	log	report
ci-akaros-main	2019/07/02 10:50	akaros	6627be2d	5f175e9c	.config	log	report
ci-akaros-main	2019/06/30 20:18	akaros	6627be2d	699d6448	.config	log	report
ci-akaros-main	2019/06/27 06:16	akaros	6627be2d	7509bf36	.config	log	report
ci-akaros-main	2019/06/27 00:04	akaros	6627be2d	7509bf36	.config	log	report
ci-akaros-main	2019/06/26 21:30	akaros	6627be2d	7509bf36	.config	log	report
ci-akaros-main	2019/06/25 23:44	akaros	6627be2d	0a8d1a96	.config	log	report
ci-akaros-main	2019/06/22 06:15	akaros	6627be2d	34bf9440	.config	log	report
ci-akaros-main	2019/06/21 12:19	akaros	6627be2d	34bf9440	.config	log	report
ci-akaros-main	2019/06/20 16:31	akaros	6627be2d	34bf9440	.config	log	report
ci-akaros-main	2019/06/20 05:50	akaros	6627be2d	34bf9440	.config	log	report
ci-akaros-main	2019/06/19 17:07	akaros	6627be2d	34bf9440	.config	log	report
ci-akaros-main	2019/06/17 14:04	akaros	6627be2d	442206d7	.config	log	report
ci-akaros-main	2019/06/17 06:36	akaros	6627be2d	442206d7	.config	log	report
ci-akaros-main	2019/06/16 04:57	akaros	6627be2d	442206d7	.config	log	report
ci-akaros-main	2019/06/14 14:11	akaros	6627be2d	998ccc76	.config	log	report
ci-akaros-main	2019/06/12 12:18	akaros	6627be2d	794a1ad7	.config	log	report
ci-akaros-main	2019/06/12 01:48	akaros	6627be2d	ea2f4006	.config	log	report
ci-akaros-main	2019/06/09 16:51	akaros	6627be2d	0159583c	.config	log	report
ci-akaros-main	2019/06/08 12:04	akaros	6627be2d	0159583c	.config	log	report
ci-akaros-main	2019/06/06 02:17	akaros	4c8b611f	a547defc	.config	log	report
ci-akaros-main	2019/05/30 01:21	akaros	5bf9b881	d9aaf3c2	.config	log	report
ci-akaros-main	2019/05/26 18:47	akaros	5bf9b881	85c57315	.config	log	report
ci-akaros-main	2019/05/18 18:06	akaros	525b58af	40046286	.config	log	report
ci-akaros-main	2019/05/16 08:58	akaros	1af5d588	051c49fe	.config	log	report
ci-akaros-main	2019/05/15 21:45	akaros	1af5d588	051c49fe	.config	log	report
ci-akaros-main	2019/05/14 10:19	akaros	1af5d588	ada3c44c	.config	log	report
ci-akaros-main	2019/05/11 17:45	akaros	299f4b5e	46caad94	.config	log	report
ci-akaros-main	2019/05/11 08:34	akaros	299f4b5e	46caad94	.config	log	report
ci-akaros-main	2019/05/08 17:28	akaros	d8ea787e	1bb034d0	.config	log	report
ci-akaros-main	2019/05/07 02:21	akaros	d8ea787e	d28f4ce5	.config	log	report
ci-akaros-main	2019/05/01 09:35	akaros	95e5d955	20f16bef	.config	log	report
ci-akaros-main	2019/04/28 14:09	akaros	fbc86e4f	f46aabc8	.config	log	report
ci-akaros-main	2019/04/26 10:49	akaros	fbc86e4f	f46aabc8	.config	log	report