kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 12265 Comm: syz-executor.5 Not tainted 4.14.145 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880980a0740 task.stack: ffff888054e10000
RIP: 0010:tcp_sendmsg_locked+0x50e/0x3200 net/ipv4/tcp.c:1281
RSP: 0018:ffff888054e179b0 EFLAGS: 00010206
kobject: 'loop0' (ffff88806523ab20): kobject_uevent_env
RAX: 0000000000000012 RBX: 0000000000000000 RCX: ffffc90008458000
RDX: 000000000000011c RSI: ffffffff85240e44 RDI: 0000000000000090
RBP: ffff888054e17b48 R08: ffff8880980a0740 R09: 0000000000000001
R10: 0000000000000000 R11: ffff8880980a0740 R12: dffffc0000000000
R13: ffff8880845a62c0 R14: ffff888054e17c28 R15: ffff88809045a380
kobject: 'loop0' (ffff88806523ab20): fill_kobj_path: path = '/devices/virtual/block/loop0'
FS:  00007fd194fc9700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6829af8000 CR3: 00000000a92e8000 CR4: 00000000001406f0
kobject: '0000:0000:0000.0001' (ffff88809f602c38): kobject_add_internal: parent: 'uhid', set: 'devices'
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kobject: '0000:0000:0000.0001' (ffff88809f602c38): kobject_uevent_env
kobject: '0000:0000:0000.0001' (ffff88809f602c38): fill_kobj_path: path = '/devices/virtual/misc/uhid/0000:0000:0000.0001'
 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1457
 inet_sendmsg+0x122/0x500 net/ipv4/af_inet.c:762
hid-generic 0000:0000:0000.0001: unknown main item tag 0x0
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xce/0x110 net/socket.c:656
 sock_write_iter+0x21d/0x390 net/socket.c:925
hid-generic 0000:0000:0000.0001: unknown main item tag 0x0
 call_write_iter include/linux/fs.h:1777 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x4a7/0x6b0 fs/read_write.c:482
hid-generic 0000:0000:0000.0001: unknown main item tag 0x0
hid-generic 0000:0000:0000.0001: unknown main item tag 0x0
 vfs_write+0x198/0x500 fs/read_write.c:544
hid-generic 0000:0000:0000.0001: unknown main item tag 0x0
 SYSC_write fs/read_write.c:590 [inline]
 SyS_write+0xfd/0x230 fs/read_write.c:582
hid-generic 0000:0000:0000.0001: unknown main item tag 0x0
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
hid-generic 0000:0000:0000.0001: unknown main item tag 0x0
RIP: 0033:0x459a09
RSP: 002b:00007fd194fc8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459a09
hid-generic 0000:0000:0000.0001: unknown main item tag 0x0
RDX: 000000000000004c RSI: 0000000020000140 RDI: 0000000000000005
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd194fc96d4
R13: 00000000004c5f88 R14: 00000000004e0610 R15: 00000000ffffffff
hid-generic 0000:0000:0000.0001: unknown main item tag 0x0
Code: d4 
hid-generic 0000:0000:0000.0001: unknown main item tag 0x0
38 fc 4d 85 ed 0f 84 
hid-generic 0000:0000:0000.0001: unknown main item tag 0x0
40 08 00 00 e8 ac d4 
kobject: 'hidraw' (ffff888074af7c80): kobject_add_internal: parent: '0000:0000:0000.0001', set: '(null)'
38 fc 8b 85 78 ff ff 
kobject: 'hidraw0' (ffff888064da91d0): kobject_add_internal: parent: 'hidraw', set: 'devices'
ff 48 8d bb 90 00 00 
kobject: 'hidraw0' (ffff888064da91d0): kobject_uevent_env
00 89 85 50 ff ff ff 48 
kobject: 'hidraw0' (ffff888064da91d0): fill_kobj_path: path = '/devices/virtual/misc/uhid/0000:0000:0000.0001/hidraw/hidraw0'
89 f8 48 c1 e8 03 <42> 
hid-generic 0000:0000:0000.0001: hidraw0: <UNKNOWN> HID v0.00 Device [syz0] on syz1
0f b6 04 20 84 c0 74 06 
kobject: '0000:0000:0000.0001' (ffff88809f602c38): kobject_uevent_env
0f 8e 4a 25 00 00 
kobject: '0000:0000:0000.0001' (ffff88809f602c38): fill_kobj_path: path = '/devices/virtual/misc/uhid/0000:0000:0000.0001'
f6 83 90 00 00 00 
RIP: tcp_sendmsg_locked+0x50e/0x3200 net/ipv4/tcp.c:1281 RSP: ffff888054e179b0
---[ end trace ff0d8b959c0877d5 ]---
kobject: 'loop4' (ffff8880a4ab60a0): kobject_uevent_env