audit: type=1400 audit(1567423021.113:36): avc: denied { map } for pid=6903 comm="sh" path="/bin/dash" dev="sda1" ino=1473 scontext=system_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
random: sshd: uninitialized urandom read (32 bytes read)
audit: type=1400 audit(1567423025.043:37): avc: denied { map } for pid=6907 comm="syz-executor057" path="/root/syz-executor057000940" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
==================================================================
BUG: KASAN: slab-out-of-bounds in bpf_skb_proto_xlat net/core/filter.c:2151 [inline]
BUG: KASAN: slab-out-of-bounds in ____bpf_skb_change_proto net/core/filter.c:2189 [inline]
BUG: KASAN: slab-out-of-bounds in bpf_skb_change_proto+0xdbc/0x10f0 net/core/filter.c:2164
Read of size 2 at addr ffff8880a55bc300 by task syz-executor057/6907
CPU: 1 PID: 6907 Comm: syz-executor057 Not tainted 4.14.141 #37
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x138/0x197 lib/dump_stack.c:53
print_address_description.cold+0x7c/0x1dc mm/kasan/report.c:252
kasan_report_error mm/kasan/report.c:351 [inline]
kasan_report mm/kasan/report.c:409 [inline]
kasan_report.cold+0xa9/0x2af mm/kasan/report.c:393
__asan_report_load2_noabort+0x14/0x20 mm/kasan/report.c:428
bpf_skb_proto_xlat net/core/filter.c:2151 [inline]
____bpf_skb_change_proto net/core/filter.c:2189 [inline]
bpf_skb_change_proto+0xdbc/0x10f0 net/core/filter.c:2164
bpf_prog_4b4d9be662d00a7e+0xcfd/0x1000
Allocated by task 0:
(stack is not available)
Freed by task 0:
(stack is not available)
The buggy address belongs to the object at ffff8880a55bc300
which belongs to the cache skbuff_head_cache of size 232
The buggy address is located 0 bytes inside of
232-byte region [ffff8880a55bc300, ffff8880a55bc3e8)
The buggy address belongs to the page:
page:ffffea0002956f00 count:1 mapcount:0 mapping:ffff8880a55bc080 index:0x0
flags: 0x1fffc0000000100(slab)
raw: 01fffc0000000100 ffff8880a55bc080 0000000000000000 000000010000000c
raw: ffffea0002829fe0 ffffea0002783ae0 ffff88821b7203c0 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8880a55bc200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880a55bc280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880a55bc300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff8880a55bc380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880a55bc400: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
==================================================================