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: 7447 Comm: syz-executor5 Not tainted 4.15.0-rc8+ #263
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__bpf_prog_put+0x8e/0x580 kernel/bpf/syscall.c:939
RSP: 0018:ffff8801d46671e0 EFLAGS: 00010a02
RAX: 173c0045a00003a4 RBX: 1ffff1003a8cce3f RCX: ffffffff817db4f7
RDX: 0000000000000000 RSI: 0000000000000001 RDI: b9e0022d00001d0a
RBP: ffff8801d46672c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: b9e0022d00001d0a
R13: b9e0022d00001d22 R14: ffff8801d4667298 R15: dffffc0000000000
FS:  00007f9e1808f700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000040199a CR3: 0000000006822004 CR4: 00000000001626e0
Call Trace:
 bpf_prog_put+0x1a/0x20 kernel/bpf/syscall.c:950
 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
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x9bb/0x1ad0 kernel/exit.c:865
 do_group_exit+0x149/0x400 kernel/exit.c:968
 get_signal+0x73f/0x16c0 kernel/signal.c:2335
 do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158
 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+0x9e/0xa0
RIP: 0033:0x452df9
RSP: 002b:00007f9e1808ece8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000071bf80 RCX: 0000000000452df9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000071bf80
RBP: 000000000071bf80 R08: 0000000000000400 R09: 000000000071bf58
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000a2f7ef R14: 00007f9e1808f9c0 R15: 0000000000000002
Code: f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f2 f2 f2 f2 c7 40 0c 00 f2 f2 f2 c7 40 10 f3 f3 f3 f3 e8 c9 62 f2 ff 4c 89 e8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 07 04 00 00 49 8b 44 24 18 f0 ff 08 74 3a 
RIP: __bpf_prog_put+0x8e/0x580 kernel/bpf/syscall.c:939 RSP: ffff8801d46671e0
---[ end trace fa65c951e87611d8 ]---