kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 10761 Comm: syz-executor4 Not tainted 4.15.0-rc7+ #192
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__bpf_prog_put+0x8d/0x640 kernel/bpf/syscall.c:944
RSP: 0018:ffff8801c5167a70 EFLAGS: 00010a06
RAX: 1cf0004200000544 RBX: 0000000000000001 RCX: ffffffff817e21de
RDX: 0000000000000069 RSI: ffffc90002d48000 RDI: e780021000002a09
RBP: ffff8801c5167b50 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff10038a2cf51
R13: ffff8801c5167b28 R14: e780021000002a09 R15: dffffc0000000000
FS:  00007f0d1aa90700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002079f000 CR3: 00000001c41b6003 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 bpf_prog_put+0x1a/0x20 kernel/bpf/syscall.c:961
 prog_fd_array_put_ptr+0x15/0x20 kernel/bpf/arraymap.c:446
 fd_array_map_delete_elem kernel/bpf/arraymap.c:420 [inline]
 bpf_fd_array_map_clear+0xd2/0x140 kernel/bpf/arraymap.c:461
 bpf_map_put_uref+0x54/0x70 kernel/bpf/syscall.c:224
 bpf_map_put_with_uref kernel/bpf/syscall.c:248 [inline]
 bpf_map_release+0x91/0xc0 kernel/bpf/syscall.c:259
 __fput+0x327/0x7e0 fs/file_table.c:210
 ____fput+0x15/0x20 fs/file_table.c:244
 task_work_run+0x199/0x270 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x296/0x310 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
 syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264
 entry_SYSCALL_64_fastpath+0x98/0x9a
RIP: 0033:0x452df9
RSP: 002b:00007f0d1aa8fc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 000000000071bea0 RCX: 0000000000452df9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000013
RBP: 000000000000004e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ee7f0
R13: 00000000ffffffff R14: 00007f0d1aa906d4 R15: 0000000000000000
Code: f2 f2 c7 40 08 f2 f2 f2 f2 c7 40 0c 00 f2 f2 f2 c7 40 10 f3 f3 f3 f3 e8 22 fc f1 ff 49 8d 46 18 48 89 85 28 ff ff ff 48 c1 e8 03 <42> 80 3c 38 00 0f 85 44 05 00 00 49 8b 46 18 f0 ff 08 74 3b e8 
RIP: __bpf_prog_put+0x8d/0x640 kernel/bpf/syscall.c:944 RSP: ffff8801c5167a70
---[ end trace 29d431852ab44488 ]---