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: 20724 Comm: syz-executor5 Not tainted 4.17.0-rc2+ #44
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:smc_getsockopt+0x8b/0x120 net/smc/af_smc.c:1298
RSP: 0018:ffff880190c07c28 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90007c5e000
RDX: 0000000000000005 RSI: ffffffff873e72c6 RDI: 0000000000000028
RBP: ffff880190c07c58 R08: 00000000200001c0 R09: ffff880190c07818
R10: 0000000000000003 R11: 0000000000000000 R12: 1ffff10032180f92
R13: 0000000000000084 R14: 000000000000007c R15: 0000000020000180
FS:  0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f5f79b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000811c048 CR3: 0000000190a48000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __compat_sys_getsockopt+0x32e/0x7f0 net/compat.c:533
 __do_compat_sys_getsockopt net/compat.c:543 [inline]
 __se_compat_sys_getsockopt net/compat.c:540 [inline]
 __ia32_compat_sys_getsockopt+0xbd/0x150 net/compat.c:540
 do_syscall_32_irqs_on arch/x86/entry/common.c:323 [inline]
 do_fast_syscall_32+0x345/0xf9b arch/x86/entry/common.c:394
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f7dcb9
RSP: 002b:00000000f5f790ac EFLAGS: 00000282 ORIG_RAX: 000000000000016d
RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 0000000000000084
RDX: 000000000000007c RSI: 0000000020000180 RDI: 00000000200001c0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 93 00 00 00 48 8b 9b 50 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 28 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 62 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 28 49 
RIP: smc_getsockopt+0x8b/0x120 net/smc/af_smc.c:1298 RSP: ffff880190c07c28
---[ end trace 452e30a95b05309a ]---