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: 0 PID: 10029 Comm: syz-executor6 Not tainted 4.17.0-rc4+ #50
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:smc_tx_prepared_sends net/smc/smc_tx.h:27 [inline]
RIP: 0010:smc_ioctl+0x6db/0x9f0 net/smc/af_smc.c:1506
RSP: 0018:ffff8801a885f770 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000004 RSI: 1ffff1003510bf0d RDI: 0000000000000020
RBP: ffff8801a885f9d0 R08: ffffed003510bf0e R09: ffffed003510bf0d
R10: ffffed003510bf0d R11: ffff8801a885f86f R12: 1ffff1003510bef1
R13: 00000000200000c0 R14: ffff8801a885f868 R15: ffff8801a885f828
FS:  00007f47bb234700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f47bb233db8 CR3: 00000001abde0000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 sock_do_ioctl+0xe4/0x3e0 net/socket.c:957
 sock_ioctl+0x30d/0x680 net/socket.c:1081
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x1cf/0x16a0 fs/ioctl.c:684
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701
 __do_sys_ioctl fs/ioctl.c:708 [inline]
 __se_sys_ioctl fs/ioctl.c:706 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:706
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455a09
RSP: 002b:00007f47bb233c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f47bb2346d4 RCX: 0000000000455a09
RDX: 00000000200000c0 RSI: 000000000000894b RDI: 0000000000000014
RBP: 000000000072c000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000044b R14: 00000000006fa7a8 R15: 0000000000000002
Code: f8 48 c1 e8 03 80 3c 10 00 0f 85 ed 01 00 00 48 8b 9b 90 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 20 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e b7 01 00 00 8b 43 20 49 8d 
RIP: smc_tx_prepared_sends net/smc/smc_tx.h:27 [inline] RSP: ffff8801a885f770
RIP: smc_ioctl+0x6db/0x9f0 net/smc/af_smc.c:1506 RSP: ffff8801a885f770
---[ end trace ab39a0e977a300e2 ]---