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Check rotate_any.cc and scale_any.cc for overflows

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Inspect all the ANY macros.

Change-Id: Icdf382181572b34490e0830d1a0a14286b84faaf
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8266561
Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Wan-Teh Chang <wtc@google.com>
This commit is contained in:
Wan-Teh Chang 2026-08-18 09:30:06 -07:00 committed by libyuv-scoped@luci-project-accounts.iam.gserviceaccount.com
parent 72e5a16aee
commit 553f01170b
2 changed files with 38 additions and 23 deletions
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9
source/rotate_any.cc
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@ -26,7 +26,8 @@ extern "C" {
if (n > 0) { \
TPOS_SIMD(src, src_stride, dst, dst_stride, n); \
} \
TPOS_C(src + n, src_stride, dst + n * dst_stride, dst_stride, r); \
ptrdiff_t np = n; \
TPOS_C(src + np, src_stride, dst + np * dst_stride, dst_stride, r); \
}
#ifdef HAS_TRANSPOSEWX8_NEON
@ -55,8 +56,10 @@ TANY(TransposeWx16_Any_LSX, TransposeWx16_LSX, TransposeWx16_C, 15)
if (n > 0) { \
TPOS_SIMD(src, src_stride, dst_a, dst_stride_a, dst_b, dst_stride_b, n); \
} \
TransposeUVWx8_C(src + n * 2, src_stride, dst_a + n * dst_stride_a, \
dst_stride_a, dst_b + n * dst_stride_b, dst_stride_b, r); \
ptrdiff_t np = n; \
TransposeUVWx8_C(src + np * 2, src_stride, dst_a + np * dst_stride_a, \
dst_stride_a, dst_b + np * dst_stride_b, dst_stride_b, \
r); \
}
#ifdef HAS_TRANSPOSEUVWX8_NEON

36
source/scale_any.cc
View File

@ -8,6 +8,7 @@
* be found in the AUTHORS file in the root of the source tree.
*/
#include <assert.h>
#include <string.h> // For memset/memcpy
#include "libyuv/scale.h"
@ -30,8 +31,9 @@ extern "C" {
if (n > 0) { \
SCALEROWDOWN_SIMD(src_ptr, src_stride, dst_ptr, n); \
} \
SCALEROWDOWN_C(src_ptr + (n * FACTOR) * BPP, src_stride, \
dst_ptr + n * BPP, r); \
ptrdiff_t np = n; \
SCALEROWDOWN_C(src_ptr + (np * FACTOR) * BPP, src_stride, \
dst_ptr + np * BPP, r); \
}
// Fixed scale down for odd source width. Used by I420Blend subsampling.
@ -45,8 +47,9 @@ extern "C" {
if (n > 0) { \
SCALEROWDOWN_SIMD(src_ptr, src_stride, dst_ptr, n); \
} \
SCALEROWDOWN_C(src_ptr + (n * FACTOR) * BPP, src_stride, \
dst_ptr + n * BPP, r + 1); \
ptrdiff_t np = n; \
SCALEROWDOWN_C(src_ptr + (np * FACTOR) * BPP, src_stride, \
dst_ptr + np * BPP, r + 1); \
}
#ifdef HAS_SCALEROWDOWN2_SSSE3
@ -416,8 +419,9 @@ SDANY(ScaleARGBRowDown2Box_Any_LSX,
if (n > 0) { \
SCALEROWDOWN_SIMD(src_ptr, src_stride, src_stepx, dst_ptr, n); \
} \
SCALEROWDOWN_C(src_ptr + (n * src_stepx) * BPP, src_stride, src_stepx, \
dst_ptr + n * BPP, r); \
ptrdiff_t np = n; \
SCALEROWDOWN_C(src_ptr + (np * src_stepx) * BPP, src_stride, src_stepx, \
dst_ptr + np * BPP, r); \
}
#ifdef HAS_SCALEARGBROWDOWNEVEN_SSE2
@ -471,17 +475,22 @@ SDAANY(ScaleUVRowDownEven_Any_NEON,
#define SAROW(NAMEANY, ANY_SIMD, SBPP, BPP, MASK) \
void NAMEANY(const uint8_t* src_ptr, uint16_t* dst_ptr, int width) { \
SIMD_ALIGNED(uint8_t src_temp[32]); \
static_assert((MASK + 1) * SBPP <= sizeof(src_temp), \
"src_temp buffer too small"); \
SIMD_ALIGNED(uint16_t dst_temp[32]); \
static_assert((MASK + 1) * BPP <= sizeof(dst_temp), \
"dst_temp buffer too small"); \
memset(src_temp, 0, sizeof(src_temp)); /* for msan */ \
int r = width & MASK; \
int n = width & ~MASK; \
if (n > 0) { \
ANY_SIMD(src_ptr, dst_ptr, n); \
} \
memcpy(src_temp, src_ptr + n * SBPP, r * SBPP); \
memcpy(dst_temp, dst_ptr + n * BPP, r * BPP); \
ptrdiff_t np = n; \
memcpy(src_temp, src_ptr + np * SBPP, r * SBPP); \
memcpy(dst_temp, dst_ptr + np * BPP, r * BPP); \
ANY_SIMD(src_temp, dst_temp, MASK + 1); \
memcpy(dst_ptr + n * BPP, dst_temp, r * BPP); \
memcpy(dst_ptr + np * BPP, dst_temp, r * BPP); \
}
#ifdef HAS_SCALEADDROW_SSE2
@ -535,7 +544,8 @@ SAANY(ScaleAddRow_Any_LSX, ScaleAddRow_LSX, ScaleAddRow_C, 15)
if (n > 0) { \
TERP_SIMD(dst_ptr, src_ptr, n, x, dx); \
} \
TERP_C(dst_ptr + n * BPP, src_ptr, r, x + n * dx, dx); \
ptrdiff_t np = n; \
TERP_C(dst_ptr + np * BPP, src_ptr, r, x + np * dx, dx); \
}
#ifdef HAS_SCALEFILTERCOLS_NEON
@ -819,7 +829,8 @@ SU2BLANY(ScaleRowUp2_Bilinear_16_Any_NEON,
if (n != 0) { \
SIMD(src_ptr, dst_ptr + 2, n); \
} \
C(src_ptr + n, dst_ptr + 2 * n + 2, r); \
ptrdiff_t np = n; \
C(src_ptr + np, dst_ptr + 2 * np + 2, r); \
} \
dst_ptr[2 * dst_width - 2] = src_ptr[((dst_width + 1) & ~1) - 2]; \
dst_ptr[2 * dst_width - 1] = src_ptr[((dst_width + 1) & ~1) - 1]; \
@ -907,7 +918,8 @@ SBUH2LANY(ScaleUVRowUp2_Linear_16_Any_NEON,
if (n != 0) { \
SIMD(sa, sb - sa, da + 2, db - da, n); \
} \
C(sa + n, sb - sa, da + 2 * n + 2, db - da, r); \
ptrdiff_t np = n; \
C(sa + np, sb - sa, da + 2 * np + 2, db - da, r); \
} \
da[2 * dst_width - 2] = (3 * sa[((dst_width + 1) & ~1) - 2] + \
sb[((dst_width + 1) & ~1) - 2] + 2) >> \