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test: account for ADDR_NO_RANDOMIZE if it's set
On ppc64le sanitizers disable ASLR (i.e. by setting ADDR_NO_RANDOMIZE),
which opinionated_personality() doesn't return. Let's tweak the current
personality ourselves in such cases.
See: 78f7a6eaa6
Resolves: #23666
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677ec2d609
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@ -934,8 +934,15 @@ TEST(lock_personality) {
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}
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assert_se(opinionated_personality(¤t) >= 0);
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/* On ppc64le sanitizers disable ASLR (i.e. by setting ADDR_NO_RANDOMIZE),
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* which opinionated_personality() doesn't return. Let's tweak the current
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* personality ourselves in such cases.
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* See: https://github.com/llvm/llvm-project/commit/78f7a6eaa601bfdd6ae70ffd3da2254c21ff77f9
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*/
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if (FLAGS_SET(safe_personality(PERSONALITY_INVALID), ADDR_NO_RANDOMIZE))
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current |= ADDR_NO_RANDOMIZE;
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log_info("current personality=%lu", current);
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log_info("current personality=0x%lX", current);
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pid = fork();
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assert_se(pid >= 0);
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@ -945,13 +952,14 @@ TEST(lock_personality) {
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assert_se((unsigned long) safe_personality(current) == current);
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/* Note, we also test that safe_personality() works correctly, by checkig whether errno is properly
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/* Note, we also test that safe_personality() works correctly, by checking whether errno is properly
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* set, in addition to the return value */
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errno = 0;
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assert_se(safe_personality(PER_LINUX | ADDR_NO_RANDOMIZE) == -EPERM);
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assert_se(safe_personality(PER_LINUX | MMAP_PAGE_ZERO) == -EPERM);
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assert_se(errno == EPERM);
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assert_se(safe_personality(PER_LINUX | MMAP_PAGE_ZERO) == -EPERM);
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if (!FLAGS_SET(current, ADDR_NO_RANDOMIZE))
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assert_se(safe_personality(PER_LINUX | ADDR_NO_RANDOMIZE) == -EPERM);
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assert_se(safe_personality(PER_LINUX | ADDR_COMPAT_LAYOUT) == -EPERM);
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assert_se(safe_personality(PER_LINUX | READ_IMPLIES_EXEC) == -EPERM);
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assert_se(safe_personality(PER_LINUX_32BIT) == -EPERM);
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