linux-kernel - kernel-selftests/lkdtm: USERCOPY_STACK_FRAME

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Message-ID: <PH0PR11MB4792B019A284AF4695F24EF4C59C9@PH0PR11MB4792.namprd11.prod.outlook.com>
Date:   Fri, 19 Nov 2021 10:09:37 +0000
From:   "Zhou, Jie2X" <jie2x.zhou@...el.com>
To:     "keescook@...omium.org" <keescook@...omium.org>,
        "arnd@...db.de" <arnd@...db.de>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Li, Philip" <philip.li@...el.com>,
        "fnstml-lkp@...fujitsu.com" <fnstml-lkp@...fujitsu.com>
Subject: kernel-selftests/lkdtm: USERCOPY_STACK_FRAME_TO fail

hi,
  LKP test try to test kernel selftests/lkdtm.
  But I got some error like following:

# [  107.625978] lkdtm: ok: SMEP did not get cleared
# [  107.625980] lkdtm: trying to clear SMEP with call gadget
# [  107.625983] lkdtm: ok: SMEP removal was reverted
# UNSET_SMEP: saw 'pinned CR4 bits changed:': ok
ok 15 selftests: lkdtm: UNSET_SMEP.sh

# [  108.321689] lkdtm: Performing direct entry SLAB_LINEAR_OVERFLOW
# 
# [  108.333630] lkdtm: Attempting slab linear overflow ...
# SLAB_LINEAR_OVERFLOW: missing 'call trace:': [FAIL]
not ok 19 selftests: lkdtm: SLAB_LINEAR_OVERFLOW.sh # exit=1

# READ_AFTER_FREE: missing 'call trace:|Memory correctly poisoned': [FAIL]
not ok 22 selftests: lkdtm: READ_AFTER_FREE.sh # exit=1

# READ_BUDDY_AFTER_FREE: missing 'call trace:|Memory correctly poisoned': [FAIL]
not ok 24 selftests: lkdtm: READ_BUDDY_AFTER_FREE.sh # exit=1

# USERCOPY_STACK_FRAME_TO: missing 'call trace:': [FAIL]
not ok 69 selftests: lkdtm: USERCOPY_STACK_FRAME_TO.sh # exit=1

# USERCOPY_STACK_FRAME_FROM: missing 'call trace:': [FAIL]
not ok 70 selftests: lkdtm: USERCOPY_STACK_FRAME_FROM.sh # exit=1

# STACKLEAK_ERASING: missing 'OK: the rest of the thread stack is properly erased': [FAIL]
not ok 73 selftests: lkdtm: STACKLEAK_ERASING.sh # exit=1

# CFI_FORWARD_PROTO: missing 'call trace:': [FAIL]
not ok 74 selftests: lkdtm: CFI_FORWARD_PROTO.sh # exit=1

# FORTIFIED_SUBOBJECT: missing 'call trace:': [FAIL]
not ok 77 selftests: lkdtm: FORTIFIED_SUBOBJECT.sh # exit=1

Am I missing something special(kconfig, packages etc). ?

My kernel is v5.15 

best regards,