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: 16627 Comm: syz-executor1 Not tainted 5.0.0-rc4+ #54
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:tcp_splice_read+0x1eb/0xf20 net/ipv4/tcp.c:799
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 8a 0c 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 18 48 8d 7b 78 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e c7 0a 00 00 8b 5b 78 31 ff 45
RSP: 0018:ffff88805eb2faa0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110122525c6
RDX: 000000000000000f RSI: 0000000000000000 RDI: 0000000000000078
RBP: ffff88805eb2fc20 R08: 0000000000000006 R09: ffff888091292e30
R10: ffff888091292540 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88805eb2fbf8 R15: ffff8880965124c0
FS:  00007fb8ad143700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 0000000085679000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smc_splice_read+0x26c/0x390 net/smc/af_smc.c:1855
 sock_splice_read+0xc6/0x140 net/socket.c:858
 do_splice_to+0x12a/0x190 fs/splice.c:880
 do_splice+0xff7/0x1410 fs/splice.c:1178
 __do_sys_splice fs/splice.c:1419 [inline]
 __se_sys_splice fs/splice.c:1399 [inline]
 __x64_sys_splice+0x2c6/0x330 fs/splice.c:1399
 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457e39
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:00007fb8ad142c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000457e39
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 000000000073bf00 R08: 0000000000005800 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb8ad1436d4
R13: 00000000004c6b98 R14: 00000000004db618 R15: 00000000ffffffff
Modules linked in:
kobject: 'loop3' (0000000091510944): kobject_uevent_env
---[ end trace 66eadaf492d949f1 ]---
kobject: 'loop3' (0000000091510944): fill_kobj_path: path = '/devices/virtual/block/loop3'
RIP: 0010:tcp_splice_read+0x1eb/0xf20 net/ipv4/tcp.c:799
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 8a 0c 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 18 48 8d 7b 78 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e c7 0a 00 00 8b 5b 78 31 ff 45
kobject: 'loop2' (000000007093e394): kobject_uevent_env
RSP: 0018:ffff88805eb2faa0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110122525c6
RDX: 000000000000000f RSI: 0000000000000000 RDI: 0000000000000078
kobject: 'loop2' (000000007093e394): fill_kobj_path: path = '/devices/virtual/block/loop2'
RBP: ffff88805eb2fc20 R08: 0000000000000006 R09: ffff888091292e30
R10: ffff888091292540 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88805eb2fbf8 R15: ffff8880965124c0
FS:  00007fb8ad143700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
kobject: 'loop4' (0000000075da29c5): kobject_uevent_env
kobject: 'loop4' (0000000075da29c5): fill_kobj_path: path = '/devices/virtual/block/loop4'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c42430f000 CR3: 0000000085679000 CR4: 00000000001406e0
kobject: 'loop0' (0000000056836163): kobject_uevent_env
kobject: 'loop0' (0000000056836163): fill_kobj_path: path = '/devices/virtual/block/loop0'
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400