kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 26046 Comm: syz-executor.2 Not tainted 4.14.137 #33
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8881f59201c0 task.stack: ffff8881f5928000
RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline]
RIP: 0010:__smc_diag_dump.isra.0+0x342/0x17b0 net/smc/smc_diag.c:82
RSP: 0018:ffff8881f592f4f0 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: ffff8881f4524e00 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff85eeb8e3 RDI: 000000000000000e
RBP: ffff8881f592f6c8 R08: 0000000000000040 R09: ffff8881f4524e50
R10: ffff8881f5920ab8 R11: ffff8881f59201c0 R12: ffff8881f592f6a0
R13: ffff8881f72b8790 R14: ffff8881fbae1340 R15: ffff8881fbae1790
FS:  00007fbbeb679700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000201a750 CR3: 000000005b077000 CR4: 00000000001406f0
Call Trace:
 smc_diag_dump+0x1e5/0x2a0 net/smc/smc_diag.c:170
 netlink_dump+0x3fa/0xb10 net/netlink/af_netlink.c:2202
 __netlink_dump_start+0x4ff/0x750 net/netlink/af_netlink.c:2299
 netlink_dump_start include/linux/netlink.h:217 [inline]
 smc_diag_handler_dump+0x1b7/0x200 net/smc/smc_diag.c:191
 __sock_diag_cmd net/core/sock_diag.c:231 [inline]
 sock_diag_rcv_msg+0x29e/0x3a0 net/core/sock_diag.c:263
 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432
 sock_diag_rcv+0x2b/0x40 net/core/sock_diag.c:274
 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline]
 netlink_unicast+0x45d/0x640 net/netlink/af_netlink.c:1312
 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xce/0x110 net/socket.c:656
 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062
 __sys_sendmsg+0xb9/0x140 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2103
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459829
RSP: 002b:00007fbbeb678c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459829
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbbeb6796d4
R13: 00000000004c76d0 R14: 00000000004dce00 R15: 00000000ffffffff
Code: 20 48 89 f9 48 c1 e9 03 80 3c 11 00 0f 85 b2 13 00 00 48 8b 50 20 48 b8 00 00 00 00 00 fc ff df 48 8d 7a 0e 48 89 f9 48 c1 e9 03 <0f> b6 0c 01 48 89 f8 83 e0 07 83 c0 01 38 c8 7c 08 84 c9 0f 85 
RIP: smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline] RSP: ffff8881f592f4f0
RIP: __smc_diag_dump.isra.0+0x342/0x17b0 net/smc/smc_diag.c:82 RSP: ffff8881f592f4f0
---[ end trace 256b662f176b78cc ]---