Message ID | 20201127044424.40686-20-aneesh.kumar@linux.ibm.com (mailing list archive) |
---|---|
State | Accepted |
Commit | b2ff33a10c8b3e9d260c57df38b5cd3765a0b785 |
Headers | show |
Series | Kernel userspace access/execution prevention with hash translation | expand |
Context | Check | Description |
---|---|---|
snowpatch_ozlabs/apply_patch | success | Successfully applied on branch powerpc/merge (4c202167192a77481310a3cacae9f12618b92216) |
snowpatch_ozlabs/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 13 lines checked |
snowpatch_ozlabs/needsstable | success | Patch has no Fixes tags |
diff --git a/arch/powerpc/mm/book3s64/pkeys.c b/arch/powerpc/mm/book3s64/pkeys.c index 8d1bf2f18ca4..9f01c86d2beb 100644 --- a/arch/powerpc/mm/book3s64/pkeys.c +++ b/arch/powerpc/mm/book3s64/pkeys.c @@ -265,7 +265,12 @@ void __init setup_kuep(bool disabled) #ifdef CONFIG_PPC_KUAP void __init setup_kuap(bool disabled) { - if (disabled || !early_radix_enabled()) + if (disabled) + return; + /* + * On hash if PKEY feature is not enabled, disable KUAP too. + */ + if (!early_radix_enabled() && !early_mmu_has_feature(MMU_FTR_PKEY)) return; if (smp_processor_id() == boot_cpuid) {