SELinux: unrecognized netlink message: protocol=0 nlmsg_type=8665 sclass=netlink_route_socket pig=21083 comm=syz-executor1
==================================================================
BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:344 [inline]
BUG: KASAN: slab-out-of-bounds in array_map_update_elem+0x197/0x240 kernel/bpf/arraymap.c:249
Write of size 4078 at addr ffff8801c91a0890 by task syz-executor7/21088

CPU: 0 PID: 21088 Comm: syz-executor7 Not tainted 4.15.0-rc7+ #188
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+0x194/0x257 lib/dump_stack.c:53
 print_address_description+0x73/0x250 mm/kasan/report.c:252
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report+0x25b/0x340 mm/kasan/report.c:409
 check_memory_region_inline mm/kasan/kasan.c:260 [inline]
 check_memory_region+0x137/0x190 mm/kasan/kasan.c:267
 memcpy+0x37/0x50 mm/kasan/kasan.c:303
 memcpy include/linux/string.h:344 [inline]
 array_map_update_elem+0x197/0x240 kernel/bpf/arraymap.c:249
 map_update_elem kernel/bpf/syscall.c:687 [inline]
 SYSC_bpf kernel/bpf/syscall.c:1811 [inline]
 SyS_bpf+0x32df/0x4400 kernel/bpf/syscall.c:1782
 entry_SYSCALL_64_fastpath+0x23/0x9a
RIP: 0033:0x452cf9
RSP: 002b:00007f34bfadec58 EFLAGS: 00000212 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452cf9
RDX: 0000000000000020 RSI: 0000000020b03fe0 RDI: 0000000000000002
RBP: 0000000000000591 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f6638
R13: 00000000ffffffff R14: 00007f34bfadf6d4 R15: 0000000000000000

Allocated by task 21088:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
 __do_kmalloc_node mm/slab.c:3672 [inline]
 __kmalloc_node+0x47/0x70 mm/slab.c:3679
 kmalloc_node include/linux/slab.h:541 [inline]
 bpf_map_area_alloc+0x32/0x80 kernel/bpf/syscall.c:123
 array_map_alloc+0x351/0xa00 kernel/bpf/arraymap.c:96
 find_and_alloc_map kernel/bpf/syscall.c:105 [inline]
 map_create kernel/bpf/syscall.c:404 [inline]
 SYSC_bpf kernel/bpf/syscall.c:1805 [inline]
 SyS_bpf+0x7f8/0x4400 kernel/bpf/syscall.c:1782
 entry_SYSCALL_64_fastpath+0x23/0x9a

Freed by task 16660:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3488 [inline]
 kfree+0xd6/0x260 mm/slab.c:3803
 free_bprm+0x19d/0x200 fs/exec.c:1414
 do_execveat_common.isra.30+0x1a24/0x23c0 fs/exec.c:1812
 do_execve+0x31/0x40 fs/exec.c:1847
 call_usermodehelper_exec_async+0x457/0x8f0 kernel/umh.c:100
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:524

The buggy address belongs to the object at ffff8801c91a07c0
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 208 bytes inside of
 256-byte region [ffff8801c91a07c0, ffff8801c91a08c0)
The buggy address belongs to the page:
page:ffffea0007246800 count:1 mapcount:0 mapping:ffff8801c91a0040 index:0xffff8801c91a0040
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801c91a0040 ffff8801c91a0040 000000010000000b
raw: ffffea00072b38a0 ffffea0007220a20 ffff8801dac007c0 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801c91a0780: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
 ffff8801c91a0800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8801c91a0880: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
                                           ^
 ffff8801c91a0900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8801c91a0980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================