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kernel BUG at mm/slab.c:4407!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
binder: 9651:9652 ioctl c0306201 20000000 returned -14
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 2377 Comm: udevd Not tainted 4.16.0+ #288
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__check_heap_object+0xa7/0xc0 mm/slab.c:4432
RSP: 0018:ffff8801cadefa60 EFLAGS: 00010297
RAX: 00000000000f0f0e RBX: 1ffff100395bdf53 RCX: 000000000000000c
RDX: ffff8801ad766b40 RSI: 0000000000000fe4 RDI: ffff8801ad76601c
RBP: ffff8801cadefa60 R08: 0000000000000000 R09: ffff8801dad7e600
binder: BINDER_SET_CONTEXT_MGR already set
R10: 00000000e1e1d80d R11: 0000000000000000 R12: ffff8801ad76601c
R13: 0000000000000fe4 R14: ffffea0006b5d980 R15: ffffea0006b5d980
FS:  00007f9e9aaac7a0(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5fde455130 CR3: 00000001cad19000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 check_heap_object mm/usercopy.c:236 [inline]
 __check_object_size+0x272/0x530 mm/usercopy.c:259
binder: 9651:9656 ioctl 40046207 0 returned -16
 check_object_size include/linux/thread_info.h:112 [inline]
 strncpy_from_user+0xf4/0x430 lib/strncpy_from_user.c:116
 getname_flags+0x10e/0x580 fs/namei.c:149
 user_path_at_empty+0x2d/0x50 fs/namei.c:2569
 do_readlinkat+0x139/0x390 fs/stat.c:394
 SYSC_readlink fs/stat.c:427 [inline]
 SyS_readlink+0x2a/0x40 fs/stat.c:424
 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7f9e9a1b5577
RSP: 002b:00007ffd90fe7c08 EFLAGS: 00000202 ORIG_RAX: 0000000000000059
RAX: ffffffffffffffda RBX: 00000000012e8250 RCX: 00007f9e9a1b5577
RDX: 00000000000003fc RSI: 00007ffd90fe8034 RDI: 00007ffd90fe7c30
RBP: 00000000000003fc R08: 00000000012e80d0 R09: 00007f9e9a20a1d0
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
R13: 0000000000000000 R14: 00000000012ee110 R15: 00000000012e8250
Code: 2c 48 c7 c7 54 7e 0b 88 e8 87 d1 07 00 5d c3 49 8b 91 08 01 00 00 48 29 c7 48 39 d7 77 be 48 01 d0 48 29 c8 48 39 f0 72 b3 5d c3 <0f> 0b 48 c7 c7 54 7e 0b 88 e8 5b d2 07 00 90 90 90 90 90 90 90 
RIP: __check_heap_object+0xa7/0xc0 mm/slab.c:4432 RSP: ffff8801cadefa60
---[ end trace 0fdd4a3aaa55f009 ]---