sctp: [Deprecated]: syz-executor1 (pid 17010) Use of int in max_burst socket option deprecated.
Use struct sctp_assoc_value instead
usercopy: kernel memory overwrite attempt detected to 00000000159158c6 (kmalloc-1024) (984 bytes)
------------[ cut here ]------------
kernel BUG at mm/usercopy.c:72!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 17035 Comm: syz-executor0 Not tainted 4.15.0-rc1+ #137
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: 000000007db7574a task.stack: 00000000a5fa1998
RIP: 0010:report_usercopy mm/usercopy.c:64 [inline]
RIP: 0010:__check_object_size+0x3a2/0x4f0 mm/usercopy.c:264
RSP: 0018:ffff8801d261fc60 EFLAGS: 00010286
RAX: 0000000000000061 RBX: ffffffff85328540 RCX: 0000000000000000
RDX: 0000000000000061 RSI: ffffc900017ae000 RDI: ffffed003a4c3f80
RBP: ffff8801d261fd50 R08: 1ffffffff0d2ab1f R09: 0000000000000000
R10: 000000002729216c R11: 0000000000000000 R12: ffffffff85328500
R13: ffff8801ccb78dd0 R14: 00000000000003d8 R15: ffffea000732de00
FS:  00007f0f1deb1700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020e73f84 CR3: 00000001a0dcc000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 check_object_size include/linux/thread_info.h:112 [inline]
 check_copy_size include/linux/thread_info.h:143 [inline]
 copy_from_user include/linux/uaccess.h:146 [inline]
 memdup_user+0x46/0x90 mm/util.c:168
 ioctl_file_dedupe_range fs/ioctl.c:597 [inline]
 do_vfs_ioctl+0x53e/0x1530 fs/ioctl.c:680
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x4529d9
RSP: 002b:00007f0f1deb0c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 00000000004529d9
RDX: 0000000020b34fe0 RSI: 00000000c0189436 RDI: 0000000000000016
RBP: 0000000000000494 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f3e80
R13: 00000000ffffffff R14: 00007f0f1deb16d4 R15: 0000000000000000
Code: 48 0f 44 da e8 e0 74 c2 ff 48 8b 85 28 ff ff ff 4d 89 f1 4c 89 e9 4c 89 e2 48 89 de 48 c7 c7 00 86 32 85 49 89 c0 e8 d3 32 ac ff <0f> 0b 48 c7 c0 c0 83 32 85 eb 96 48 c7 c0 00 84 32 85 eb 8d 48 
RIP: report_usercopy mm/usercopy.c:64 [inline] RSP: ffff8801d261fc60
RIP: __check_object_size+0x3a2/0x4f0 mm/usercopy.c:264 RSP: ffff8801d261fc60
---[ end trace d8f5d47657573726 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..