mirror of
https://github.com/norandom/OpenUltraSAST.git
synced 2026-10-18 20:49:28 +00:00
Marius Ciepluch
0116f9bea6
Harvest 176 isolated vuln-vs-fix functions (109 CVEs, 352 training rows) into benchmarks/pairs/vfc with provenance and a JSONL training manifest. Score the slice as an honesty dashboard (ousast pairs --slice vfc); keep the pair gate on the local fixtures only.
73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
/* Provenance: openssl/openssl bn_sub_words (fixed).
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* repo: openssl/openssl
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* commit: a00d757d9ca212994625d1a02c81cc5edd27e13b
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* parent: 908eaceb62624f5b5c505b286d904bd3a4e8a64a
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* commit_url: https://github.com/openssl/openssl/commit/a00d757d9ca212994625d1a02c81cc5edd27e13b
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* cve: CVE-2022-4304
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* license: Apache-2.0
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* function: bn_sub_words
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* relpath: crypto/bn/bn_asm.c
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*/
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BN_ULONG bn_sub_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b,
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int n)
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{
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BN_ULONG t1, t2;
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int c = 0;
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assert(n >= 0);
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if (n <= 0)
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return (BN_ULONG)0;
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#ifndef OPENSSL_SMALL_FOOTPRINT
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while (n & ~3) {
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t1 = a[0];
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t2 = (t1 - c) & BN_MASK2;
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c = (t2 > t1);
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t1 = b[0];
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t1 = (t2 - t1) & BN_MASK2;
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r[0] = t1;
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c += (t1 > t2);
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t1 = a[1];
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t2 = (t1 - c) & BN_MASK2;
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c = (t2 > t1);
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t1 = b[1];
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t1 = (t2 - t1) & BN_MASK2;
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r[1] = t1;
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c += (t1 > t2);
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t1 = a[2];
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t2 = (t1 - c) & BN_MASK2;
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c = (t2 > t1);
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t1 = b[2];
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t1 = (t2 - t1) & BN_MASK2;
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r[2] = t1;
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c += (t1 > t2);
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t1 = a[3];
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t2 = (t1 - c) & BN_MASK2;
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c = (t2 > t1);
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t1 = b[3];
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t1 = (t2 - t1) & BN_MASK2;
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r[3] = t1;
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c += (t1 > t2);
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a += 4;
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b += 4;
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r += 4;
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n -= 4;
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}
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#endif
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while (n) {
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t1 = a[0];
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t2 = (t1 - c) & BN_MASK2;
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c = (t2 > t1);
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t1 = b[0];
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t1 = (t2 - t1) & BN_MASK2;
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r[0] = t1;
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c += (t1 > t2);
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a++;
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b++;
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r++;
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n--;
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}
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return c;
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}
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