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
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
CPU: 1 PID: 12476 Comm: syz-executor.0 Not tainted 4.19.93-syzkaller #0
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 45 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 3c 09 00 00 45 8b 6d 78 31 ff
RSP: 0018:ffff88804d4afba0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff88804d4afcb0 RCX: 1ffff1100aa18dd6
RDX: 000000000000000f RSI: ffff8880550c6e90 RDI: 0000000000000078
RBP: ffff88804d4afcd8 R08: ffff8880550c65c0 R09: ffff8880550c6eb0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88804ed0b000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88805a3bb780
FS:  00007f30441c2700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc088e0b58 CR3: 000000008fb9f000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kobject: 'loop4' (00000000d4693759): kobject_uevent_env
 smc_splice_read+0x266/0x390 net/smc/af_smc.c:1855
 sock_splice_read+0xb9/0x100 net/socket.c:859
 do_splice_to+0x127/0x180 fs/splice.c:881
 do_splice+0x1048/0x1340 fs/splice.c:1186
kobject: 'loop4' (00000000d4693759): fill_kobj_path: path = '/devices/virtual/block/loop4'
 __do_sys_splice fs/splice.c:1428 [inline]
 __se_sys_splice fs/splice.c:1408 [inline]
 __x64_sys_splice+0x2c6/0x330 fs/splice.c:1408
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45af49
Code: ad b6 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 b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f30441c1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
kobject: 'loop3' (000000000fc6e1c9): kobject_uevent_env
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 000000000045af49
RDX: 0000000000000008 RSI: 0000000000000000 RDI: 000000000000000c
RBP: 000000000075bf20 R08: 0000000000060000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f30441c26d4
R13: 00000000004cc33d R14: 00000000004e60b8 R15: 00000000ffffffff
kobject: 'loop3' (000000000fc6e1c9): fill_kobj_path: path = '/devices/virtual/block/loop3'
Modules linked in:
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'.
---[ end trace a22a0de77747e53e ]---
kobject: 'loop5' (00000000d2afb3ed): kobject_uevent_env
kobject: 'loop5' (00000000d2afb3ed): fill_kobj_path: path = '/devices/virtual/block/loop5'
RIP: 0010:tcp_splice_read+0x167/0xc30 net/ipv4/tcp.c:799
kobject: 'loop1' (0000000015707d87): kobject_uevent_env
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 45 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 3c 09 00 00 45 8b 6d 78 31 ff
kobject: 'loop1' (0000000015707d87): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000d4693759): kobject_uevent_env
RSP: 0018:ffff88804d4afba0 EFLAGS: 00010206
kobject: 'loop4' (00000000d4693759): fill_kobj_path: path = '/devices/virtual/block/loop4'
RAX: dffffc0000000000 RBX: ffff88804d4afcb0 RCX: 1ffff1100aa18dd6
RDX: 000000000000000f RSI: ffff8880550c6e90 RDI: 0000000000000078
kobject: 'loop1' (0000000015707d87): kobject_uevent_env
kobject: 'loop1' (0000000015707d87): fill_kobj_path: path = '/devices/virtual/block/loop1'
RBP: ffff88804d4afcd8 R08: ffff8880550c65c0 R09: ffff8880550c6eb0
kobject: 'loop3' (000000000fc6e1c9): kobject_uevent_env
kobject: 'loop3' (000000000fc6e1c9): fill_kobj_path: path = '/devices/virtual/block/loop3'
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88804ed0b000
kobject: 'loop4' (00000000d4693759): kobject_uevent_env
kobject: 'loop4' (00000000d4693759): fill_kobj_path: path = '/devices/virtual/block/loop4'
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88805a3bb780
FS:  00007f30441c2700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff15057020 CR3: 000000008fb9f000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400