keyctl06 in ubuntu_ltp_syscalls failed with T

<<<test_start>>>
tag=keyctl06 stime=1539670421
cmdline="keyctl06"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_test.c:1072: INFO: Timeout per run is 0h 05m 00s
keyctl06.c:64: FAIL: KEYCTL_READ overran the buffer

Summary:
passed 0
failed 0
skipped 0
warnings 0

From the test case, this is for:
/*
 * Regression test for:
 *
 * commit e645016abc80 ("KEYS: fix writing past end of user-supplied buffer
 * in keyring_read()").
 *
 * as well as its follow-on fix:
 *
 * commit 3239b6f29bdf ("KEYS: return full count in keyring_read() if
 * buffer is too small")
 *
 */

When running the complete syscalls test suite, it will failed with the following error message instead:
keyctl06.c:41: BROK: Failed to add test key: EDQUOT

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-160-generic 3.13.0-160.210
ProcVersionSignature: User Name 3.13.0-160.210-generic 3.13.11-ckt39
Uname: Linux 3.13.0-160-generic x86_64
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Oct 16 03:39 seq
 crw-rw---- 1 root audio 116, 33 Oct 16 03:39 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3.29
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Tue Oct 16 06:13:57 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: Intel Corporation S1200RP
PciMultimedia:

ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-160-generic root=UUID=b0d2ae4e-12dd-423e-acea-272ee8b2a893 ro console=ttyS0,115200n8
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-160-generic N/A
 linux-backports-modules-3.13.0-160-generic N/A
 linux-firmware 1.127.24
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/01/2015
dmi.bios.vendor: Intel Corp.
dmi.bios.version: S1200RP.86B.03.02.0003.070120151022
dmi.board.asset.tag: ....................
dmi.board.name: S1200RP
dmi.board.vendor: Intel Corporation
dmi.board.version: G62254-407
dmi.chassis.asset.tag: ....................
dmi.chassis.type: 17
dmi.chassis.vendor: ..............................
dmi.chassis.version: ..................
dmi.modalias: dmi:bvnIntelCorp.:bvrS1200RP.86B.03.02.0003.070120151022:bd07/01/2015:svnIntelCorporation:pnS1200RP:pvr....................:rvnIntelCorporation:rnS1200RP:rvrG62254-407:cvn..............................:ct17:cvr..................:
dmi.product.name: S1200RP
dmi.product.version: ....................
dmi.sys.vendor: Intel Corporation