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: 25379 Comm: syz-executor.5 Not tainted 4.14.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888044a2a080 task.stack: ffff88820f1d8000
RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:46 [inline]
RIP: 0010:__smc_diag_dump.isra.0+0x300/0x1550 net/smc/smc_diag.c:81
RSP: 0018:ffff88820f1df480 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: ffff88820b170480 RCX: ffffc90007d83000
RDX: 0000000000000001 RSI: ffffffff86133af8 RDI: 000000000000000e
RBP: ffff88803bb552c0 R08: 0000000000000040 R09: ffff88820b170490
R10: ffffed104162e099 R11: ffff88820b1704cf R12: 1ffff11041e3be94
R13: ffff88820b5429c0 R14: ffff888049ef17d0 R15: 0000000000000000
FS:  00007f79ef9cb700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005622affa9f28 CR3: 0000000047f92000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smc_diag_dump+0x1d9/0x290 net/smc/smc_diag.c:169
 netlink_dump+0x3da/0xab0 net/netlink/af_netlink.c:2203
 __netlink_dump_start+0x4e2/0x740 net/netlink/af_netlink.c:2300
 netlink_dump_start include/linux/netlink.h:217 [inline]
 smc_diag_handler_dump+0x19d/0x1e0 net/smc/smc_diag.c:190
 __sock_diag_cmd net/core/sock_diag.c:231 [inline]
 sock_diag_rcv_msg+0x28d/0x390 net/core/sock_diag.c:263
 netlink_rcv_skb+0x127/0x370 net/netlink/af_netlink.c:2433
 sock_diag_rcv+0x26/0x40 net/core/sock_diag.c:274
 netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline]
 netlink_unicast+0x437/0x620 net/netlink/af_netlink.c:1313
 netlink_sendmsg+0x733/0xbe0 net/netlink/af_netlink.c:1878
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xc5/0x100 net/socket.c:656
 sock_no_sendpage+0xe5/0x110 net/core/sock.c:2572
 kernel_sendpage+0x82/0xd0 net/socket.c:3407
 sock_sendpage+0x84/0xa0 net/socket.c:871
 pipe_to_sendpage+0x226/0x2d0 fs/splice.c:451
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x332/0x740 fs/splice.c:626
 splice_from_pipe+0xc6/0x120 fs/splice.c:661
 do_splice_from fs/splice.c:851 [inline]
 do_splice fs/splice.c:1147 [inline]
 SYSC_splice fs/splice.c:1402 [inline]
 SyS_splice+0xca0/0x1230 fs/splice.c:1382
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c889
RSP: 002b:00007f79ef9cac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 00007f79ef9cb6d4 RCX: 000000000045c889
RDX: 0000000000000007 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 000000000076bf00 R08: 0000000080000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000ba2 R14: 00000000004ce6ca R15: 000000000076bf0c
Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 11 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 7f 20 49 8d 7f 0e 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 
RIP: smc_diag_msg_common_fill net/smc/smc_diag.c:46 [inline] RSP: ffff88820f1df480
RIP: __smc_diag_dump.isra.0+0x300/0x1550 net/smc/smc_diag.c:81 RSP: ffff88820f1df480
---[ end trace 32c8b9a44b1edf6e ]---