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
CPU: 1 PID: 22973 Comm: syz-executor.3 Not tainted 5.1.0-rc3-next-20190408 #20
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:tcp_splice_read+0x167/0xc30 net/ipv4/tcp.c:799
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 7f 0a 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6d 18 49 8d 7d 78 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 70 08 00 00 45 8b 6d 78 31 ff
RSP: 0018:ffff88809f65fb98 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff88809f65fca8 RCX: 1ffff110139bb5fe
RDX: 000000000000000f RSI: ffff88809cddafd0 RDI: 0000000000000078
RBP: ffff88809f65fcd0 R08: ffff88809cdda700 R09: ffff88809cddaff0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809ffb8f80
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88809e97ca80
FS:  00007efc0e43f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004ce590 CR3: 0000000097f50000 CR4: 00000000001426e0
Call Trace:
 smc_splice_read+0x2b3/0x450 net/smc/af_smc.c:1886
 sock_splice_read+0xc6/0x140 net/socket.c:946
 do_splice_to+0x12a/0x190 fs/splice.c:876
 do_splice+0x10a9/0x13c0 fs/splice.c:1183
 __do_sys_splice fs/splice.c:1424 [inline]
 __se_sys_splice fs/splice.c:1404 [inline]
 __x64_sys_splice+0x2c6/0x330 fs/splice.c:1404
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4582b9
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007efc0e43ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00000000004582b9
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 000000000073bf00 R08: 0000080000010003 R09: 0000000000000009
R10: 0000000000000000 R11: 0000000000000246 R12: 00007efc0e43f6d4
R13: 00000000004c70e6 R14: 00000000004dc0e0 R15: 00000000ffffffff
Modules linked in:
---[ end trace d6c2af7d29efd4a3 ]---
RIP: 0010:tcp_splice_read+0x167/0xc30 net/ipv4/tcp.c:799
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 7f 0a 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6d 18 49 8d 7d 78 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 70 08 00 00 45 8b 6d 78 31 ff
RSP: 0018:ffff88809f65fb98 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff88809f65fca8 RCX: 1ffff110139bb5fe
RDX: 000000000000000f RSI: ffff88809cddafd0 RDI: 0000000000000078
RBP: ffff88809f65fcd0 R08: ffff88809cdda700 R09: ffff88809cddaff0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809ffb8f80
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88809e97ca80
FS:  00007efc0e43f700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c438255000 CR3: 0000000097f50000 CR4: 00000000001426f0