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: 0 PID: 12838 Comm: syz-executor4 Not tainted 5.0.0-rc2+ #8
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop2' (0000000030988703): kobject_uevent_env
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:ffff888068227aa0 EFLAGS: 00010206
kobject: 'loop2' (0000000030988703): fill_kobj_path: path = '/devices/virtual/block/loop2'
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110151309d6
RDX: 000000000000000f RSI: 0000000000000000 RDI: 0000000000000078
RBP: ffff888068227c20 R08: 0000000000000006 R09: ffff8880a8984eb0
R10: ffff8880a89845c0 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000008 R14: ffff888068227bf8 R15: ffff888094c7e280
FS:  00007f88b1825700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop5' (000000001cbfcbc4): kobject_uevent_env
CR2: 00007f6f63023570 CR3: 000000008f369000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kobject: 'loop5' (000000001cbfcbc4): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (00000000fced6960): kobject_uevent_env
kobject: 'loop3' (00000000fced6960): fill_kobj_path: path = '/devices/virtual/block/loop3'
 smc_splice_read+0x26c/0x390 net/smc/af_smc.c:1855
kobject: 'loop0' (000000009dacb392): kobject_uevent_env
 sock_splice_read+0xc6/0x140 net/socket.c:858
kobject: 'loop0' (000000009dacb392): fill_kobj_path: path = '/devices/virtual/block/loop0'
 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: 0033:0x458099
Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f88b1824c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000458099
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 000000000073bf00 R08: 0000000800010012 R09: 0000000000000008
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f88b18256d4
R13: 00000000004c6d9a R14: 00000000004db710 R15: 00000000ffffffff
Modules linked in:
---[ end trace 9bbe9699ee04bbde ]---
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:ffff888068227aa0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110151309d6
RDX: 000000000000000f RSI: 0000000000000000 RDI: 0000000000000078
RBP: ffff888068227c20 R08: 0000000000000006 R09: ffff8880a8984eb0
R10: ffff8880a89845c0 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000008 R14: ffff888068227bf8 R15: ffff888094c7e280
FS:  00007f88b1825700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000073c000 CR3: 000000008f369000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400