Dec 6 04:19:47 kernel: [ 59.910332] usercopy: kernel memory overwrite attempt detected to (null) (<null>) (6 bytes)
Dec 6 04:19:47 kernel: [ 59.910349] ------------[ cut here ]------------
Dec 6 04:19:47 kernel: [ 59.910351] kernel BUG at /build/linux-KM2a5S/linux-4.13.0/mm/usercopy.c:72!
Dec 6 04:19:47 kernel: [ 59.910354] invalid opcode: 0000 [#4] SMP
Dec 6 04:19:47 kernel: [ 59.910355] Modules linked in: xfs jfs btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear scsi_dh_hp_sw scsi_dh_rdac scsi_dh_emc scsi_dh_alua virtio_blk virtio_net parport_pc parport nls_utf8 isofs usb_storage vga16fb vgastate floppy
Dec 6 04:19:47 kernel: [ 59.910372] CPU: 0 PID: 11669 Comm: dmraid Tainted: G D 4.13.0-17-generic #20-Ubuntu
Dec 6 04:19:47 kernel: [ 59.910373] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
Dec 6 04:19:47 kernel: [ 59.910375] task: ffff98831d70ac00 task.stack: ffffb82c40d9c000
Dec 6 04:19:47 kernel: [ 59.910380] RIP: 0010:__check_object_size+0x123/0x1b0
Dec 6 04:19:47 kernel: [ 59.910381] RSP: 0018:ffffb82c40d9fc18 EFLAGS: 00010286
Dec 6 04:19:47 kernel: [ 59.910383] RAX: 0000000000000059 RBX: 0000000000000006 RCX: 0000000000000000
Dec 6 04:19:47 kernel: [ 59.910384] RDX: 0000000000000000 RSI: ffff98831ee0dc78 RDI: ffff98831ee0dc78
Dec 6 04:19:47 kernel: [ 59.910390] RBP: ffffb82c40d9fc38 R08: 0000000000000000 R09: 000000000000023d
Dec 6 04:19:47 kernel: [ 59.910392] R10: ffffffffffffffb0 R11: ffffffffa913e1ad R12: 0000000000000000
Dec 6 04:19:47 kernel: [ 59.910393] R13: 0000000000000006 R14: 0000000000000000 R15: 0000000000000006
Dec 6 04:19:47 kernel: [ 59.910394] FS: 00007f0a2b5ee740(0000) GS:ffff98831ee00000(0000) knlGS:0000000000000000
Dec 6 04:19:47 kernel: [ 59.910395] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 6 04:19:47 kernel: [ 59.910397] CR2: 000055a77d259f18 CR3: 00000000088af000 CR4: 00000000000006f0
Dec 6 04:19:47 kernel: [ 59.910400] Call Trace:
Dec 6 04:19:47 kernel: [ 59.910407] sg_io+0xe2/0x400
Dec 6 04:19:47 kernel: [ 59.910410] ? path_lookupat+0xaa/0x1f0
Dec 6 04:19:47 kernel: [ 59.910412] ? terminate_walk+0x8b/0xf0
Dec 6 04:19:47 kernel: [ 59.910414] scsi_cmd_ioctl+0x260/0x440
Dec 6 04:19:47 kernel: [ 59.910416] ? __check_object_size+0xaf/0x1b0
Dec 6 04:19:47 kernel: [ 59.910419] scsi_cmd_blk_ioctl+0x42/0x50
Dec 6 04:19:47 kernel: [ 59.910422] virtblk_ioctl+0x56/0x70 [virtio_blk]
Dec 6 04:19:47 kernel: [ 59.910424] blkdev_ioctl+0x880/0x940
Dec 6 04:19:47 kernel: [ 59.910427] block_ioctl+0x3d/0x50
Dec 6 04:19:47 kernel: [ 59.910429] do_vfs_ioctl+0xa5/0x610
Dec 6 04:19:47 kernel: [ 59.910432] ? SYSC_newstat+0x50/0x70
Dec 6 04:19:47 kernel: [ 59.910434] SyS_ioctl+0x79/0x90
Dec 6 04:19:47 kernel: [ 59.910438] entry_SYSCALL_64_fastpath+0x1e/0xa9
Dec 6 04:19:47 kernel: [ 59.910439] RIP: 0033:0x7f0a2aec3ea7
Dec 6 04:19:47 kernel: [ 59.910440] RSP: 002b:00007fffb3f8b018 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Dec 6 04:19:47 kernel: [ 59.910442] RAX: ffffffffffffffda RBX: 000055a77d24f5e0 RCX: 00007f0a2aec3ea7
Dec 6 04:19:47 kernel: [ 59.910443] RDX: 00007fffb3f8b020 RSI: 0000000000002285 RDI: 0000000000000008
Dec 6 04:19:47 kernel: [ 59.910444] RBP: 00007f0a2b1913e0 R08: 0000000000000000 R09: 0000000000000008
Dec 6 04:19:47 kernel: [ 59.910445] R10: ffffffffffffffb0 R11: 0000000000000246 R12: 0000000000000000
Dec 6 04:19:47 kernel: [ 59.910446] R13: 000055a77d258ec0 R14: 000055a77d24f5e0 R15: 0000000000000000
Dec 6 04:19:47 kernel: [ 59.910447] Code: 48 0f 45 d1 48 c7 c6 06 31 ab a8 48 c7 c1 ef 33 ac a8 48 0f 45 f1 49 89 d9 49 89 c0 4c 89 f1 48 c7 c7 f8 33 ac a8 e8 4e 7f e9 ff <0f> 0b f3 c3 48 8b 3d 12 35 bc 00 48 8b 0d 0b ac bf 00 be 00 00
Dec 6 04:19:47 kernel: [ 59.910470] RIP: __check_object_size+0x123/0x1b0 RSP: ffffb82c40d9fc18
Dec 6 04:19:47 kernel: [ 59.910472] ---[ end trace 5219e325b47df6d3 ]---