binder: 22357:22360 got transaction to invalid handle
binder: 22357:22360 transaction failed 29201/-22, size 0-0 line 2788
binder: 22357:22373 transaction failed 29189/-3, size 40-8 line 2903
==================================================================
BUG: KASAN: use-after-free in memcpy include/linux/string.h:344 [inline]
BUG: KASAN: use-after-free in array_map_update_elem+0x197/0x240 kernel/bpf/arraymap.c:249
Write of size 4 at addr ffff8801c0c7c100 by task syz-executor3/22403

CPU: 0 PID: 22403 Comm: syz-executor3 Not tainted 4.15.0-rc7+ #169
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:1714 [inline]
 SyS_bpf+0x32df/0x4400 kernel/bpf/syscall.c:1685
 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline]
 do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389
 entry_SYSENTER_compat+0x54/0x63 arch/x86/entry/entry_64_compat.S:129
RIP: 0023:0xf7f91c79
RSP: 002b:00000000f778d08c EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000020867fe0
RDX: 0000000000000020 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

Allocated by task 3581:
 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
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489
 kmem_cache_alloc+0x12e/0x760 mm/slab.c:3544
 kmem_cache_zalloc include/linux/slab.h:678 [inline]
 get_empty_filp+0xfb/0x4f0 fs/file_table.c:123
 path_openat+0xed/0x3530 fs/namei.c:3496
 do_filp_open+0x25b/0x3b0 fs/namei.c:3554
 do_sys_open+0x502/0x6d0 fs/open.c:1059
 SYSC_open fs/open.c:1077 [inline]
 SyS_open+0x2d/0x40 fs/open.c:1072
 entry_SYSCALL_64_fastpath+0x23/0x9a

Freed by task 3494:
 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]
 kmem_cache_free+0x83/0x2a0 mm/slab.c:3746
 file_free_rcu+0x5c/0x70 fs/file_table.c:50
 __rcu_reclaim kernel/rcu/rcu.h:195 [inline]
 rcu_do_batch kernel/rcu/tree.c:2758 [inline]
 invoke_rcu_callbacks kernel/rcu/tree.c:3012 [inline]
 __rcu_process_callbacks kernel/rcu/tree.c:2979 [inline]
 rcu_process_callbacks+0xd6c/0x17f0 kernel/rcu/tree.c:2996
 __do_softirq+0x2d7/0xb85 kernel/softirq.c:285

The buggy address belongs to the object at ffff8801c0c7c040
 which belongs to the cache filp of size 456
The buggy address is located 192 bytes inside of
 456-byte region [ffff8801c0c7c040, ffff8801c0c7c208)
The buggy address belongs to the page:
page:ffffea0007031f00 count:1 mapcount:0 mapping:ffff8801c0c7c040 index:0x0
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801c0c7c040 0000000000000000 0000000100000006
raw: ffffea000703f0e0 ffffea00070493e0 ffff8801dae2c180 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801c0c7c000: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
 ffff8801c0c7c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8801c0c7c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff8801c0c7c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8801c0c7c200: fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================