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mprotect: Fix early exit condition on page table attribute

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Tomoki Shirasawa
2018-06-05 19:44:44 +09:00
committed by Balazs Gerofi
parent 328609269b
commit 5f4dbb2c71
1 changed files with 1 additions and 1 deletions
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2
kernel/process.c
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@@ -1445,7 +1445,7 @@ int change_prot_process_memory_range(struct process_vm *vm,
*/ */
if (range->memobj && (range->flag & VR_PRIVATE)) { if (range->memobj && (range->flag & VR_PRIVATE)) {
setattr &= ~PTATTR_WRITABLE; setattr &= ~PTATTR_WRITABLE;
if (clrattr == setattr == 0) { if (!clrattr && !setattr) {
range->flag = newflag; range->flag = newflag;
error = 0; error = 0;
goto out; goto out;