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: 6057 Comm: syz-executor341 Not tainted 4.20.0-rc7+ #380
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:tcp_splice_read+0x1fd/0xf90 net/ipv4/tcp.c:799
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 52 0c 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 e5 0a 00 00 45 8b 6d 78 31 ff
RSP: 0018:ffff8881c163fa58 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8881c163fbb0 RCX: 1ffff110382a69c6
RDX: 000000000000000f RSI: 0000000000000000 RDI: 0000000000000078
RBP: ffff8881c163fbd8 R08: ffff8881c1534e30 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881c1534540 R12: ffff8881c154cc00
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881c163fd58
FS:  0000000000dc5880(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000140 CR3: 00000001c1d0f000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smc_splice_read+0x265/0x380 net/smc/af_smc.c:1852
 sock_splice_read+0xba/0x110 net/socket.c:858
 do_splice_to+0x12e/0x190 fs/splice.c:880
 do_splice+0x1014/0x1430 fs/splice.c:1178
 __do_sys_splice fs/splice.c:1419 [inline]
 __se_sys_splice fs/splice.c:1399 [inline]
 __x64_sys_splice+0x2c1/0x330 fs/splice.c:1399
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4400e9
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffd515b0698 EFLAGS: 00000212 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400e9
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00000000006ca018 R08: 0000000000010009 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000401970
R13: 0000000000401a00 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 6a543f6aeca6b8a9 ]---
RIP: 0010:tcp_splice_read+0x1fd/0xf90 net/ipv4/tcp.c:799
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 52 0c 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 e5 0a 00 00 45 8b 6d 78 31 ff
RSP: 0018:ffff8881c163fa58 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8881c163fbb0 RCX: 1ffff110382a69c6
RDX: 000000000000000f RSI: 0000000000000000 RDI: 0000000000000078
RBP: ffff8881c163fbd8 R08: ffff8881c1534e30 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881c1534540 R12: ffff8881c154cc00
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881c163fd58
FS:  0000000000dc5880(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000140 CR3: 00000001c1d0f000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400