syz-executor5 (6818) used greatest stack depth: 13000 bytes left
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: 6864 Comm: syz-executor2 Not tainted 4.17.0-rc1+ #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:smc_set_keepalive+0x4e/0xd0 net/smc/af_smc.c:59
RSP: 0018:ffff8801bb8d7a68 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005ed0000
RDX: 0000000000000004 RSI: ffffffff873f0a94 RDI: 0000000000000020
RBP: ffff8801bb8d7a80 R08: ffff8801c963c040 R09: 0000000000000006
R10: ffff8801c963c040 R11: 0000000000000000 R12: ffff8801c09a6000
R13: 0000000000000001 R14: 0000000000000003 R15: ffff8801c9a3a000
FS:  00007f28e8d01700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2bc21000 CR3: 00000001c2338000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 sock_setsockopt+0x14e2/0x1fe0 net/core/sock.c:801
netlink: 224 bytes leftover after parsing attributes in process `syz-executor3'.
 __sys_setsockopt+0x2df/0x390 net/socket.c:1899
 __do_sys_setsockopt net/socket.c:1914 [inline]
 __se_sys_setsockopt net/socket.c:1911 [inline]
 __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1911
netlink: 224 bytes leftover after parsing attributes in process `syz-executor3'.
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455389
RSP: 002b:00007f28e8d00c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f28e8d016d4 RCX: 0000000000455389
RDX: 0000000000000009 RSI: 0000000000000001 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000005ff R14: 00000000006fc088 R15: 0000000000000000
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 78 48 8b 9b 50 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 20 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 6b 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 20 48 
RIP: smc_set_keepalive+0x4e/0xd0 net/smc/af_smc.c:59 RSP: ffff8801bb8d7a68
---[ end trace a94ff417109df3ea ]---