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).
81 lines
1.6 KiB
C
81 lines
1.6 KiB
C
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc -verify %s
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//
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typedef __SIZE_TYPE__ size_t;
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typedef enum memory_order {
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memory_order_relaxed = __ATOMIC_RELAXED,
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} memory_order;
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void *calloc(size_t, size_t);
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void free(void *);
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struct SomeData {
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int i;
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_Atomic int ref;
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};
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static struct SomeData *alloc_data(void)
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{
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struct SomeData *data = calloc(sizeof(*data), 1);
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__c11_atomic_store(&data->ref, 2, memory_order_relaxed);
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return data;
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}
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static void put_data(struct SomeData *data)
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{
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if (__c11_atomic_fetch_sub(&data->ref, 1, memory_order_relaxed) == 1)
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free(data);
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}
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static int dec_refcounter(struct SomeData *data)
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{
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return __c11_atomic_fetch_sub(&data->ref, 1, memory_order_relaxed) == 1;
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}
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static void put_data_nested(struct SomeData *data)
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{
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if (dec_refcounter(data))
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free(data);
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}
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static void put_data_uncond(struct SomeData *data)
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{
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free(data);
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}
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static void put_data_unrelated_atomic(struct SomeData *data)
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{
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free(data);
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__c11_atomic_fetch_sub(&data->ref, 1, memory_order_relaxed);
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}
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void test_no_uaf(void)
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{
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struct SomeData *data = alloc_data();
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put_data(data);
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data->i += 1; // no warning
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}
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void test_no_uaf_nested(void)
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{
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struct SomeData *data = alloc_data();
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put_data_nested(data);
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data->i += 1; // no warning
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}
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void test_uaf(void)
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{
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struct SomeData *data = alloc_data();
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put_data_uncond(data);
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data->i += 1; // expected-warning{{Use of memory after it is freed}}
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}
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void test_no_uaf_atomic_after(void)
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{
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struct SomeData *data = alloc_data();
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put_data_unrelated_atomic(data);
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data->i += 1; // expected-warning{{Use of memory after it is freed}}
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}
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