diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2020-09-09 17:10:29 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-09-14 11:38:35 +0200 |
| commit | 08c8e685c7c9223f9c4ad6365e02bebd3f106480 (patch) | |
| tree | 0125da74f6c62816182837dfcae925c640fbc4a0 /arch/s390/Kconfig | |
| parent | s390/mm,ptdump: make page table dumping seq_file optional (diff) | |
| download | linux-08c8e685c7c9223f9c4ad6365e02bebd3f106480.tar.xz linux-08c8e685c7c9223f9c4ad6365e02bebd3f106480.zip | |
s390: add ARCH_HAS_DEBUG_WX support
Checks the whole kernel address space for W+X mappings. Note that
currently the first lowcore page unfortunately has to be mapped
W+X. Therefore this not reported as an insecure mapping.
For the very same reason the wording is also different to other
architectures if the test passes:
On s390 it is "no unexpected W+X pages found" instead of
"no W+X pages found".
Tested-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/Kconfig')
| -rw-r--r-- | arch/s390/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 85bf121211d1..2052b39b8459 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -60,6 +60,7 @@ config S390 def_bool y select ARCH_BINFMT_ELF_STATE select ARCH_HAS_DEBUG_VM_PGTABLE + select ARCH_HAS_DEBUG_WX select ARCH_HAS_DEVMEM_IS_ALLOWED select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_FORTIFY_SOURCE |