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: 917d, last: 8h59m

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 (1464):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info
ci-akaros-main	2018/07/21 00:30	akaros	9196d29a	8cc079c3	.config	log	report	syz	C
ci-akaros-main	2020/01/17 19:01	akaros	76e8476b	3de7aabb	.config	log	report	syz
ci-akaros-main	2020/01/16 06:48	akaros	76e8476b	f9b69507	.config	log	report	syz
ci-akaros-main	2019/12/16 23:52	akaros	76e8476b	d13d7958	.config	log	report	syz
ci-akaros-main	2021/01/22 23:08	akaros	d8b15e15	4080af96	.config	log	report			info
ci-akaros-main	2021/01/22 05:43	akaros	d8b15e15	d4f4eca5	.config	log	report			info
ci-akaros-main	2021/01/21 17:15	akaros	d8b15e15	d4f4eca5	.config	log	report			info
ci-akaros-main	2021/01/21 02:30	akaros	d8b15e15	d4f4eca5	.config	log	report			info
ci-akaros-main	2021/01/21 00:20	akaros	d8b15e15	d4f4eca5	.config	log	report			info
ci-akaros-main	2021/01/20 18:38	akaros	d8b15e15	d4f4eca5	.config	log	report			info
ci-akaros-main	2021/01/20 13:23	akaros	d8b15e15	d4f4eca5	.config	log	report			info
ci-akaros-main	2021/01/20 11:29	akaros	d8b15e15	d4f4eca5	.config	log	report			info
ci-akaros-main	2021/01/20 07:07	akaros	d8b15e15	fd103621	.config	log	report			info
ci-akaros-main	2021/01/19 20:26	akaros	d8b15e15	fd103621	.config	log	report			info
ci-akaros-main	2021/01/19 16:38	akaros	d8b15e15	fd103621	.config	log	report			info
ci-akaros-main	2021/01/19 11:54	akaros	d8b15e15	fd103621	.config	log	report			info
ci-akaros-main	2021/01/19 00:43	akaros	d8b15e15	fd103621	.config	log	report			info
ci-akaros-main	2021/01/18 22:27	akaros	d8b15e15	fd103621	.config	log	report			info
ci-akaros-main	2021/01/18 18:46	akaros	d8b15e15	fd103621	.config	log	report			info
ci-akaros-main	2021/01/18 09:40	akaros	d8b15e15	fd103621	.config	log	report			info
ci-akaros-main	2021/01/17 16:55	akaros	d8b15e15	813be542	.config	log	report			info
ci-akaros-main	2021/01/17 14:04	akaros	d8b15e15	813be542	.config	log	report			info
ci-akaros-main	2021/01/17 11:06	akaros	d8b15e15	813be542	.config	log	report			info
ci-akaros-main	2021/01/17 05:41	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/16 23:05	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/16 12:01	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/16 04:13	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/16 01:43	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/15 22:36	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/15 20:54	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/15 18:00	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/15 13:34	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/15 11:24	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/15 08:16	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/15 06:37	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/15 04:00	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/15 02:15	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/14 23:40	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/14 13:15	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/14 12:55	akaros	d8b15e15	468dbb55	.config	log	report			info
ci-akaros-main	2021/01/14 05:11	akaros	d8b15e15	a945f0a3	.config	log	report			info
ci-akaros-main	2021/01/13 11:21	akaros	d8b15e15	a945f0a3	.config	log	report			info
ci-akaros-main	2021/01/13 07:48	akaros	d8b15e15	0cdd6185	.config	log	report			info
ci-akaros-main	2021/01/13 04:43	akaros	d8b15e15	0cdd6185	.config	log	report			info
ci-akaros-main	2021/01/13 02:36	akaros	d8b15e15	0cdd6185	.config	log	report			info
ci-akaros-main	2021/01/12 22:58	akaros	d8b15e15	0cdd6185	.config	log	report			info
ci-akaros-main	2021/01/12 19:28	akaros	d8b15e15	0cdd6185	.config	log	report			info
ci-akaros-main	2021/01/12 17:17	akaros	d8b15e15	0cdd6185	.config	log	report			info
ci-akaros-main	2021/01/12 11:18	akaros	d8b15e15	2c1f2513	.config	log	report			info
ci-akaros-main	2021/01/12 08:40	akaros	d8b15e15	2c1f2513	.config	log	report			info