vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
29 lines
1.0 KiB
C++
29 lines
1.0 KiB
C++
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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// Triggers the bug described here:
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// https://github.com/google/oss-fuzz/issues/2369#issuecomment-490240627
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//
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// In a nutshell, MSan's parameter shadow does not get unpoisoned before calls
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// to LLVMFuzzerTestOneInput. This test case causes the parameter shadow to be
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// poisoned by the call to foo(), which will trigger an MSan false positive on
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// the Size == 0 check if the parameter shadow is still poisoned.
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#include <cstdint>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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volatile int zero = 0;
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__attribute__((noinline)) int foo(int arg1, int arg2) { return zero; }
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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if (Size == 0)
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return 0;
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// Pass uninitialized values to foo(). Since foo doesn't do anything with
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// them, MSan should not report an error here.
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int a, b;
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return foo(a, b);
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}
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